Oracle PL/SQL Tutorial/SQL PLUS Session Environment/COLUMN — различия между версиями

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Текущая версия на 10:04, 26 мая 2010

Add dollar signs to the output with "$990.99"

-- create demo table
create table Employee(
  ID                 VARCHAR2(4 BYTE)         NOT NULL,
  First_Name         VARCHAR2(10 BYTE),
  Last_Name          VARCHAR2(10 BYTE),
  Start_Date         DATE,
  End_Date           DATE,
  Salary             Number(8,2),
  City               VARCHAR2(10 BYTE),
  Description        VARCHAR2(15 BYTE)
)
/
-- prepare data
insert into Employee(ID,  First_Name, Last_Name, Start_Date,                     End_Date,                       Salary,  City,       Description)
             values ("01","Jason",    "Martin",  to_date("19960725","YYYYMMDD"), to_date("20060725","YYYYMMDD"), 1234.56, "Toronto",  "Programmer")
/
insert into Employee(ID,  First_Name, Last_Name, Start_Date,                     End_Date,                       Salary,  City,       Description)
              values("02","Alison",   "Mathews", to_date("19760321","YYYYMMDD"), to_date("19860221","YYYYMMDD"), 6661.78, "Vancouver","Tester")
/
insert into Employee(ID,  First_Name, Last_Name, Start_Date,                     End_Date,                       Salary,  City,       Description)
              values("03","James",    "Smith",   to_date("19781212","YYYYMMDD"), to_date("19900315","YYYYMMDD"), 6544.78, "Vancouver","Tester")
/
insert into Employee(ID,  First_Name, Last_Name, Start_Date,                     End_Date,                       Salary,  City,       Description)
              values("04","Celia",    "Rice",    to_date("19821024","YYYYMMDD"), to_date("19990421","YYYYMMDD"), 2344.78, "Vancouver","Manager")
/
insert into Employee(ID,  First_Name, Last_Name, Start_Date,                     End_Date,                       Salary,  City,       Description)
              values("05","Robert",   "Black",   to_date("19840115","YYYYMMDD"), to_date("19980808","YYYYMMDD"), 2334.78, "Vancouver","Tester")
/
insert into Employee(ID,  First_Name, Last_Name, Start_Date,                     End_Date,                       Salary, City,        Description)
              values("06","Linda",    "Green",   to_date("19870730","YYYYMMDD"), to_date("19960104","YYYYMMDD"), 4322.78,"New York",  "Tester")
/
insert into Employee(ID,  First_Name, Last_Name, Start_Date,                     End_Date,                       Salary, City,        Description)
              values("07","David",    "Larry",   to_date("19901231","YYYYMMDD"), to_date("19980212","YYYYMMDD"), 7897.78,"New York",  "Manager")
/
insert into Employee(ID,  First_Name, Last_Name, Start_Date,                     End_Date,                       Salary, City,        Description)
              values("08","James",    "Cat",     to_date("19960917","YYYYMMDD"), to_date("20020415","YYYYMMDD"), 1232.78,"Vancouver", "Tester")
/

-- display data in the table
select * from Employee
/


COLUMN Salary FORMAT $99999990.99
/
select * from Employee
/
clear columns;

-- clean the table
drop table Employee
/


COLUMN first_name FORMAT A10 WORD_WRAP HEADING "Name" JUSTIFY CENTER

SQL>
SQL>
SQL> -- create demo table
SQL> create table Employee(
  2    ID                 VARCHAR2(4 BYTE)         NOT NULL,
  3    First_Name         VARCHAR2(10 BYTE),
  4    Last_Name          VARCHAR2(10 BYTE),
  5    Start_Date         DATE,
  6    End_Date           DATE,
  7    Salary             Number(8,2),
  8    City               VARCHAR2(10 BYTE),
  9    Description        VARCHAR2(15 BYTE)
 10  )
 11  /
Table created.
SQL>
SQL> -- prepare data
SQL> insert into Employee(ID,  First_Name, Last_Name, Start_Date,                     End_Date,                       Salary,  City,       Description)
  2               values ("01","Jason",    "Martin",  to_date("19960725","YYYYMMDD"), to_date("20060725","YYYYMMDD"), 1234.56, "Toronto",  "Programmer")
  3  /
1 row created.
SQL> insert into Employee(ID,  First_Name, Last_Name, Start_Date,                     End_Date,                       Salary,  City,       Description)
  2                values("02","Alison",   "Mathews", to_date("19760321","YYYYMMDD"), to_date("19860221","YYYYMMDD"), 6661.78, "Vancouver","Tester")
  3  /
1 row created.
SQL> insert into Employee(ID,  First_Name, Last_Name, Start_Date,                     End_Date,                       Salary,  City,       Description)
  2                values("03","James",    "Smith",   to_date("19781212","YYYYMMDD"), to_date("19900315","YYYYMMDD"), 6544.78, "Vancouver","Tester")
  3  /
1 row created.
SQL> insert into Employee(ID,  First_Name, Last_Name, Start_Date,                     End_Date,                       Salary,  City,       Description)
  2                values("04","Celia",    "Rice",    to_date("19821024","YYYYMMDD"), to_date("19990421","YYYYMMDD"), 2344.78, "Vancouver","Manager")
  3  /
1 row created.
SQL> insert into Employee(ID,  First_Name, Last_Name, Start_Date,                     End_Date,                       Salary,  City,       Description)
  2                values("05","Robert",   "Black",   to_date("19840115","YYYYMMDD"), to_date("19980808","YYYYMMDD"), 2334.78, "Vancouver","Tester")
  3  /
1 row created.
SQL> insert into Employee(ID,  First_Name, Last_Name, Start_Date,                     End_Date,                       Salary, City,        Description)
  2                values("06","Linda",    "Green",   to_date("19870730","YYYYMMDD"), to_date("19960104","YYYYMMDD"), 4322.78,"New York",  "Tester")
  3  /
1 row created.
SQL> insert into Employee(ID,  First_Name, Last_Name, Start_Date,                     End_Date,                       Salary, City,        Description)
  2                values("07","David",    "Larry",   to_date("19901231","YYYYMMDD"), to_date("19980212","YYYYMMDD"), 7897.78,"New York",  "Manager")
  3  /
1 row created.
SQL> insert into Employee(ID,  First_Name, Last_Name, Start_Date,                     End_Date,                       Salary, City,        Description)
  2                values("08","James",    "Cat",     to_date("19960917","YYYYMMDD"), to_date("20020415","YYYYMMDD"), 1232.78,"Vancouver", "Tester")
  3  /
1 row created.
SQL>
SQL>
SQL>
SQL> -- display data in the table
SQL> select * from Employee
  2  /

ID   FIRST_NAME LAST_NAME  START_DAT END_DATE      SALARY CITY       DESCRIPTION
---- ---------- ---------- --------- --------- ---------- ---------- ---------------
01   Jason      Martin     25-JUL-96 25-JUL-06    1234.56 Toronto    Programmer
02   Alison     Mathews    21-MAR-76 21-FEB-86    6661.78 Vancouver  Tester
03   James      Smith      12-DEC-78 15-MAR-90    6544.78 Vancouver  Tester
04   Celia      Rice       24-OCT-82 21-APR-99    2344.78 Vancouver  Manager
05   Robert     Black      15-JAN-84 08-AUG-98    2334.78 Vancouver  Tester
06   Linda      Green      30-JUL-87 04-JAN-96    4322.78 New York   Tester
07   David      Larry      31-DEC-90 12-FEB-98    7897.78 New York   Manager
08   James      Cat        17-SEP-96 15-APR-02    1232.78 Vancouver  Tester
8 rows selected.
SQL> COLUMN first_name FORMAT A10 WORD_WRAP HEADING "Name" JUSTIFY CENTER
SQL>
SQL> select * from employee;

ID      Name    LAST_NAME  START_DAT END_DATE      SALARY CITY       DESCRIPTION
---- ---------- ---------- --------- --------- ---------- ---------- ---------------
01   Jason      Martin     25-JUL-96 25-JUL-06    1234.56 Toronto    Programmer
02   Alison     Mathews    21-MAR-76 21-FEB-86    6661.78 Vancouver  Tester
03   James      Smith      12-DEC-78 15-MAR-90    6544.78 Vancouver  Tester
04   Celia      Rice       24-OCT-82 21-APR-99    2344.78 Vancouver  Manager
05   Robert     Black      15-JAN-84 08-AUG-98    2334.78 Vancouver  Tester
06   Linda      Green      30-JUL-87 04-JAN-96    4322.78 New York   Tester
07   David      Larry      31-DEC-90 12-FEB-98    7897.78 New York   Manager
08   James      Cat        17-SEP-96 15-APR-02    1232.78 Vancouver  Tester
8 rows selected.
SQL> clear columns;
columns cleared
SQL>
SQL>
SQL> -- clean the table
SQL> drop table Employee
  2  /
Table dropped.
SQL>
SQL>


COLUMN first_name FORMAT A13 WORD_WRAPPED

SQL>
SQL> -- create demo table
SQL> create table Employee(
  2    ID                 VARCHAR2(4 BYTE)         NOT NULL,
  3    First_Name         VARCHAR2(10 BYTE),
  4    Last_Name          VARCHAR2(10 BYTE),
  5    Start_Date         DATE,
  6    End_Date           DATE,
  7    Salary             Number(8,2),
  8    City               VARCHAR2(10 BYTE),
  9    Description        VARCHAR2(15 BYTE)
 10  )
 11  /
Table created.
SQL>
SQL> -- prepare data
SQL> insert into Employee(ID,  First_Name, Last_Name, Start_Date,                     End_Date,                       Salary,  City,       Description)
  2               values ("01","Jason",    "Martin",  to_date("19960725","YYYYMMDD"), to_date("20060725","YYYYMMDD"), 1234.56, "Toronto",  "Programmer")
  3  /
1 row created.
SQL> insert into Employee(ID,  First_Name, Last_Name, Start_Date,                     End_Date,                       Salary,  City,       Description)
  2                values("02","Alison",   "Mathews", to_date("19760321","YYYYMMDD"), to_date("19860221","YYYYMMDD"), 6661.78, "Vancouver","Tester")
  3  /
1 row created.
SQL> insert into Employee(ID,  First_Name, Last_Name, Start_Date,                     End_Date,                       Salary,  City,       Description)
  2                values("03","James",    "Smith",   to_date("19781212","YYYYMMDD"), to_date("19900315","YYYYMMDD"), 6544.78, "Vancouver","Tester")
  3  /
1 row created.
SQL> insert into Employee(ID,  First_Name, Last_Name, Start_Date,                     End_Date,                       Salary,  City,       Description)
  2                values("04","Celia",    "Rice",    to_date("19821024","YYYYMMDD"), to_date("19990421","YYYYMMDD"), 2344.78, "Vancouver","Manager")
  3  /
1 row created.
SQL> insert into Employee(ID,  First_Name, Last_Name, Start_Date,                     End_Date,                       Salary,  City,       Description)
  2                values("05","Robert",   "Black",   to_date("19840115","YYYYMMDD"), to_date("19980808","YYYYMMDD"), 2334.78, "Vancouver","Tester")
  3  /
1 row created.
SQL> insert into Employee(ID,  First_Name, Last_Name, Start_Date,                     End_Date,                       Salary, City,        Description)
  2                values("06","Linda",    "Green",   to_date("19870730","YYYYMMDD"), to_date("19960104","YYYYMMDD"), 4322.78,"New York",  "Tester")
  3  /
1 row created.
SQL> insert into Employee(ID,  First_Name, Last_Name, Start_Date,                     End_Date,                       Salary, City,        Description)
  2                values("07","David",    "Larry",   to_date("19901231","YYYYMMDD"), to_date("19980212","YYYYMMDD"), 7897.78,"New York",  "Manager")
  3  /
1 row created.
SQL> insert into Employee(ID,  First_Name, Last_Name, Start_Date,                     End_Date,                       Salary, City,        Description)
  2                values("08","James",    "Cat",     to_date("19960917","YYYYMMDD"), to_date("20020415","YYYYMMDD"), 1232.78,"Vancouver", "Tester")
  3  /
1 row created.
SQL>
SQL>
SQL>
SQL> -- display data in the table
SQL> select * from Employee
  2  /
ID   FIRST_NAME LAST_NAME  START_DAT END_DATE      SALARY CITY       DESCRIPTION
---- ---------- ---------- --------- --------- ---------- ---------- ---------------
01   Jason      Martin     25-JUL-96 25-JUL-06    1234.56 Toronto    Programmer
02   Alison     Mathews    21-MAR-76 21-FEB-86    6661.78 Vancouver  Tester
03   James      Smith      12-DEC-78 15-MAR-90    6544.78 Vancouver  Tester
04   Celia      Rice       24-OCT-82 21-APR-99    2344.78 Vancouver  Manager
05   Robert     Black      15-JAN-84 08-AUG-98    2334.78 Vancouver  Tester
06   Linda      Green      30-JUL-87 04-JAN-96    4322.78 New York   Tester
07   David      Larry      31-DEC-90 12-FEB-98    7897.78 New York   Manager
08   James      Cat        17-SEP-96 15-APR-02    1232.78 Vancouver  Tester
8 rows selected.
SQL>
SQL>
SQL> COLUMN first_name FORMAT A13 WORD_WRAPPED
SQL> /
ID   FIRST_NAME    LAST_NAME  START_DAT END_DATE      SALARY CITY       DESCRIPTION
---- ------------- ---------- --------- --------- ---------- ---------- ---------------
01   Jason         Martin     25-JUL-96 25-JUL-06    1234.56 Toronto    Programmer
02   Alison        Mathews    21-MAR-76 21-FEB-86    6661.78 Vancouver  Tester
03   James         Smith      12-DEC-78 15-MAR-90    6544.78 Vancouver  Tester
04   Celia         Rice       24-OCT-82 21-APR-99    2344.78 Vancouver  Manager
05   Robert        Black      15-JAN-84 08-AUG-98    2334.78 Vancouver  Tester
06   Linda         Green      30-JUL-87 04-JAN-96    4322.78 New York   Tester
07   David         Larry      31-DEC-90 12-FEB-98    7897.78 New York   Manager
08   James         Cat        17-SEP-96 15-APR-02    1232.78 Vancouver  Tester
8 rows selected.
SQL>
SQL> select * from Employee
  2  /
ID   FIRST_NAME    LAST_NAME  START_DAT END_DATE      SALARY CITY       DESCRIPTION
---- ------------- ---------- --------- --------- ---------- ---------- ---------------
01   Jason         Martin     25-JUL-96 25-JUL-06    1234.56 Toronto    Programmer
02   Alison        Mathews    21-MAR-76 21-FEB-86    6661.78 Vancouver  Tester
03   James         Smith      12-DEC-78 15-MAR-90    6544.78 Vancouver  Tester
04   Celia         Rice       24-OCT-82 21-APR-99    2344.78 Vancouver  Manager
05   Robert        Black      15-JAN-84 08-AUG-98    2334.78 Vancouver  Tester
06   Linda         Green      30-JUL-87 04-JAN-96    4322.78 New York   Tester
07   David         Larry      31-DEC-90 12-FEB-98    7897.78 New York   Manager
08   James         Cat        17-SEP-96 15-APR-02    1232.78 Vancouver  Tester
8 rows selected.
SQL>
SQL> clear columns;
columns cleared
SQL>
SQL> -- clean the table
SQL> drop table Employee
  2  /
Table dropped.
SQL>


COLUMN first_name HEADING FIRST_NAME FORMAT A13 WORD_WRAPPED

SQL>
SQL> -- create demo table
SQL> create table Employee(
  2    ID                 VARCHAR2(4 BYTE)         NOT NULL,
  3    First_Name         VARCHAR2(10 BYTE),
  4    Last_Name          VARCHAR2(10 BYTE),
  5    Start_Date         DATE,
  6    End_Date           DATE,
  7    Salary             Number(8,2),
  8    City               VARCHAR2(10 BYTE),
  9    Description        VARCHAR2(15 BYTE)
 10  )
 11  /
Table created.
SQL>
SQL> -- prepare data
SQL> insert into Employee(ID,  First_Name, Last_Name, Start_Date,                     End_Date,                       Salary,  City,       Description)
  2               values ("01","Jason",    "Martin",  to_date("19960725","YYYYMMDD"), to_date("20060725","YYYYMMDD"), 1234.56, "Toronto",  "Programmer")
  3  /
1 row created.
SQL> insert into Employee(ID,  First_Name, Last_Name, Start_Date,                     End_Date,                       Salary,  City,       Description)
  2                values("02","Alison",   "Mathews", to_date("19760321","YYYYMMDD"), to_date("19860221","YYYYMMDD"), 6661.78, "Vancouver","Tester")
  3  /
1 row created.
SQL> insert into Employee(ID,  First_Name, Last_Name, Start_Date,                     End_Date,                       Salary,  City,       Description)
  2                values("03","James",    "Smith",   to_date("19781212","YYYYMMDD"), to_date("19900315","YYYYMMDD"), 6544.78, "Vancouver","Tester")
  3  /
1 row created.
SQL> insert into Employee(ID,  First_Name, Last_Name, Start_Date,                     End_Date,                       Salary,  City,       Description)
  2                values("04","Celia",    "Rice",    to_date("19821024","YYYYMMDD"), to_date("19990421","YYYYMMDD"), 2344.78, "Vancouver","Manager")
  3  /
1 row created.
SQL> insert into Employee(ID,  First_Name, Last_Name, Start_Date,                     End_Date,                       Salary,  City,       Description)
  2                values("05","Robert",   "Black",   to_date("19840115","YYYYMMDD"), to_date("19980808","YYYYMMDD"), 2334.78, "Vancouver","Tester")
  3  /
1 row created.
SQL> insert into Employee(ID,  First_Name, Last_Name, Start_Date,                     End_Date,                       Salary, City,        Description)
  2                values("06","Linda",    "Green",   to_date("19870730","YYYYMMDD"), to_date("19960104","YYYYMMDD"), 4322.78,"New York",  "Tester")
  3  /
1 row created.
SQL> insert into Employee(ID,  First_Name, Last_Name, Start_Date,                     End_Date,                       Salary, City,        Description)
  2                values("07","David",    "Larry",   to_date("19901231","YYYYMMDD"), to_date("19980212","YYYYMMDD"), 7897.78,"New York",  "Manager")
  3  /
1 row created.
SQL> insert into Employee(ID,  First_Name, Last_Name, Start_Date,                     End_Date,                       Salary, City,        Description)
  2                values("08","James",    "Cat",     to_date("19960917","YYYYMMDD"), to_date("20020415","YYYYMMDD"), 1232.78,"Vancouver", "Tester")
  3  /
1 row created.
SQL>
SQL>
SQL>
SQL> -- display data in the table
SQL> select * from Employee
  2  /
ID   FIRST_NAME LAST_NAME  START_DAT END_DATE      SALARY CITY       DESCRIPTION
---- ---------- ---------- --------- --------- ---------- ---------- ---------------
01   Jason      Martin     25-JUL-96 25-JUL-06    1234.56 Toronto    Programmer
02   Alison     Mathews    21-MAR-76 21-FEB-86    6661.78 Vancouver  Tester
03   James      Smith      12-DEC-78 15-MAR-90    6544.78 Vancouver  Tester
04   Celia      Rice       24-OCT-82 21-APR-99    2344.78 Vancouver  Manager
05   Robert     Black      15-JAN-84 08-AUG-98    2334.78 Vancouver  Tester
06   Linda      Green      30-JUL-87 04-JAN-96    4322.78 New York   Tester
07   David      Larry      31-DEC-90 12-FEB-98    7897.78 New York   Manager
08   James      Cat        17-SEP-96 15-APR-02    1232.78 Vancouver  Tester
8 rows selected.
SQL>
SQL>
SQL>
SQL> COLUMN first_name HEADING FIRST_NAME FORMAT A13 WORD_WRAPPED
SQL> /
ID   FIRST_NAME    LAST_NAME  START_DAT END_DATE      SALARY CITY       DESCRIPTION
---- ------------- ---------- --------- --------- ---------- ---------- ---------------
01   Jason         Martin     25-JUL-96 25-JUL-06    1234.56 Toronto    Programmer
02   Alison        Mathews    21-MAR-76 21-FEB-86    6661.78 Vancouver  Tester
03   James         Smith      12-DEC-78 15-MAR-90    6544.78 Vancouver  Tester
04   Celia         Rice       24-OCT-82 21-APR-99    2344.78 Vancouver  Manager
05   Robert        Black      15-JAN-84 08-AUG-98    2334.78 Vancouver  Tester
06   Linda         Green      30-JUL-87 04-JAN-96    4322.78 New York   Tester
07   David         Larry      31-DEC-90 12-FEB-98    7897.78 New York   Manager
08   James         Cat        17-SEP-96 15-APR-02    1232.78 Vancouver  Tester
8 rows selected.
SQL>
SQL> select * from Employee
  2  /
ID   FIRST_NAME    LAST_NAME  START_DAT END_DATE      SALARY CITY       DESCRIPTION
---- ------------- ---------- --------- --------- ---------- ---------- ---------------
01   Jason         Martin     25-JUL-96 25-JUL-06    1234.56 Toronto    Programmer
02   Alison        Mathews    21-MAR-76 21-FEB-86    6661.78 Vancouver  Tester
03   James         Smith      12-DEC-78 15-MAR-90    6544.78 Vancouver  Tester
04   Celia         Rice       24-OCT-82 21-APR-99    2344.78 Vancouver  Manager
05   Robert        Black      15-JAN-84 08-AUG-98    2334.78 Vancouver  Tester
06   Linda         Green      30-JUL-87 04-JAN-96    4322.78 New York   Tester
07   David         Larry      31-DEC-90 12-FEB-98    7897.78 New York   Manager
08   James         Cat        17-SEP-96 15-APR-02    1232.78 Vancouver  Tester
8 rows selected.
SQL>
SQL> clear columns;
columns cleared
SQL>
SQL> -- clean the table
SQL> drop table Employee
  2  /
Table dropped.
SQL>


COLUMN format in action: COLUMN City FORMAT a6

SQL> -- create demo table
SQL> create table Employee(
  2    ID                 VARCHAR2(4 BYTE)         NOT NULL,
  3    First_Name         VARCHAR2(10 BYTE),
  4    Last_Name          VARCHAR2(10 BYTE),
  5    Start_Date         DATE,
  6    End_Date           DATE,
  7    Salary             Number(8,2),
  8    City               VARCHAR2(10 BYTE),
  9    Description        VARCHAR2(15 BYTE)
 10  )
 11  /
Table created.
SQL>
SQL> -- prepare data
SQL> insert into Employee(ID,  First_Name, Last_Name, Start_Date,                     End_Date,
                  Salary,  City,       Description)
  2               values ("01","Jason",    "Martin",  to_date("19960725","YYYYMMDD"), to_date("20060
725","YYYYMMDD"), 1234.56, "Toronto",  "Programmer")
  3  /
1 row created.
SQL> insert into Employee(ID,  First_Name, Last_Name, Start_Date,                     End_Date,
                  Salary,  City,       Description)
  2                values("02","Alison",   "Mathews", to_date("19760321","YYYYMMDD"), to_date("19860
221","YYYYMMDD"), 6661.78, "Vancouver","Tester")
  3  /
1 row created.
SQL> insert into Employee(ID,  First_Name, Last_Name, Start_Date,                     End_Date,
                  Salary,  City,       Description)
  2                values("03","James",    "Smith",   to_date("19781212","YYYYMMDD"), to_date("19900
315","YYYYMMDD"), 6544.78, "Vancouver","Tester")
  3  /
1 row created.
SQL> insert into Employee(ID,  First_Name, Last_Name, Start_Date,                     End_Date,
                  Salary,  City,       Description)
  2                values("04","Celia",    "Rice",    to_date("19821024","YYYYMMDD"), to_date("19990
421","YYYYMMDD"), 2344.78, "Vancouver","Manager")
  3  /
1 row created.
SQL> insert into Employee(ID,  First_Name, Last_Name, Start_Date,                     End_Date,
                  Salary,  City,       Description)
  2                values("05","Robert",   "Black",   to_date("19840115","YYYYMMDD"), to_date("19980
808","YYYYMMDD"), 2334.78, "Vancouver","Tester")
  3  /
1 row created.
SQL> insert into Employee(ID,  First_Name, Last_Name, Start_Date,                     End_Date,
                  Salary, City,        Description)
  2                values("06","Linda",    "Green",   to_date("19870730","YYYYMMDD"), to_date("19960
104","YYYYMMDD"), 4322.78,"New York",  "Tester")
  3  /
1 row created.
SQL> insert into Employee(ID,  First_Name, Last_Name, Start_Date,                     End_Date,
                  Salary, City,        Description)
  2                values("07","David",    "Larry",   to_date("19901231","YYYYMMDD"), to_date("19980
212","YYYYMMDD"), 7897.78,"New York",  "Manager")
  3  /
1 row created.
SQL> insert into Employee(ID,  First_Name, Last_Name, Start_Date,                     End_Date,
                  Salary, City,        Description)
  2                values("08","James",    "Cat",     to_date("19960917","YYYYMMDD"), to_date("20020
415","YYYYMMDD"), 1232.78,"Vancouver", "Tester")
  3  /
1 row created.
SQL>
SQL>
SQL>
SQL> -- display data in the table
SQL> select * from Employee
  2  /
ID   FIRST_NAME LAST_NAME  START_DAT END_DATE      SALARY CITY
---- ---------- ---------- --------- --------- ---------- ----------
DESCRIPTION
---------------
01   Jason      Martin     25-JUL-96 25-JUL-06    1234.56 Toronto
Programmer
02   Alison     Mathews    21-MAR-76 21-FEB-86    6661.78 Vancouver
Tester
03   James      Smith      12-DEC-78 15-MAR-90    6544.78 Vancouver
Tester

ID   FIRST_NAME LAST_NAME  START_DAT END_DATE      SALARY CITY
---- ---------- ---------- --------- --------- ---------- ----------
DESCRIPTION
---------------
04   Celia      Rice       24-OCT-82 21-APR-99    2344.78 Vancouver
Manager
05   Robert     Black      15-JAN-84 08-AUG-98    2334.78 Vancouver
Tester
06   Linda      Green      30-JUL-87 04-JAN-96    4322.78 New York
Tester

ID   FIRST_NAME LAST_NAME  START_DAT END_DATE      SALARY CITY
---- ---------- ---------- --------- --------- ---------- ----------
DESCRIPTION
---------------
07   David      Larry      31-DEC-90 12-FEB-98    7897.78 New York
Manager
08   James      Cat        17-SEP-96 15-APR-02    1232.78 Vancouver
Tester

8 rows selected.
SQL>
SQL>
SQL> COLUMN City FORMAT a6
SQL> /
ID   FIRST_NAME LAST_NAME  START_DAT END_DATE      SALARY CITY   DESCRIPTION
---- ---------- ---------- --------- --------- ---------- ------ ---------------
01   Jason      Martin     25-JUL-96 25-JUL-06    1234.56 Toront Programmer
                                                          o
02   Alison     Mathews    21-MAR-76 21-FEB-86    6661.78 Vancou Tester
                                                          ver
03   James      Smith      12-DEC-78 15-MAR-90    6544.78 Vancou Tester
                                                          ver
04   Celia      Rice       24-OCT-82 21-APR-99    2344.78 Vancou Manager
                                                          ver
ID   FIRST_NAME LAST_NAME  START_DAT END_DATE      SALARY CITY   DESCRIPTION
---- ---------- ---------- --------- --------- ---------- ------ ---------------
05   Robert     Black      15-JAN-84 08-AUG-98    2334.78 Vancou Tester
                                                          ver
06   Linda      Green      30-JUL-87 04-JAN-96    4322.78 New Yo Tester
                                                          rk
07   David      Larry      31-DEC-90 12-FEB-98    7897.78 New Yo Manager
                                                          rk
08   James      Cat        17-SEP-96 15-APR-02    1232.78 Vancou Tester
ID   FIRST_NAME LAST_NAME  START_DAT END_DATE      SALARY CITY   DESCRIPTION
---- ---------- ---------- --------- --------- ---------- ------ ---------------
                                                          ver

8 rows selected.
SQL>
SQL> select * from employee
  2  /
ID   FIRST_NAME LAST_NAME  START_DAT END_DATE      SALARY CITY   DESCRIPTION
---- ---------- ---------- --------- --------- ---------- ------ ---------------
01   Jason      Martin     25-JUL-96 25-JUL-06    1234.56 Toront Programmer
                                                          o
02   Alison     Mathews    21-MAR-76 21-FEB-86    6661.78 Vancou Tester
                                                          ver
03   James      Smith      12-DEC-78 15-MAR-90    6544.78 Vancou Tester
                                                          ver
04   Celia      Rice       24-OCT-82 21-APR-99    2344.78 Vancou Manager
                                                          ver
ID   FIRST_NAME LAST_NAME  START_DAT END_DATE      SALARY CITY   DESCRIPTION
---- ---------- ---------- --------- --------- ---------- ------ ---------------
05   Robert     Black      15-JAN-84 08-AUG-98    2334.78 Vancou Tester
                                                          ver
06   Linda      Green      30-JUL-87 04-JAN-96    4322.78 New Yo Tester
                                                          rk
07   David      Larry      31-DEC-90 12-FEB-98    7897.78 New Yo Manager
                                                          rk
08   James      Cat        17-SEP-96 15-APR-02    1232.78 Vancou Tester
ID   FIRST_NAME LAST_NAME  START_DAT END_DATE      SALARY CITY   DESCRIPTION
---- ---------- ---------- --------- --------- ---------- ------ ---------------
                                                          ver

8 rows selected.
SQL>
SQL> clear columns;
columns cleared
SQL>
SQL> -- clean the table
SQL> drop table Employee
  2  /
Table dropped.
SQL>


Column LIKE another Column

SQL>
SQL>
SQL> -- create demo table
SQL> create table Employee(
  2    ID                 VARCHAR2(4 BYTE)         NOT NULL,
  3    First_Name         VARCHAR2(10 BYTE),
  4    Last_Name          VARCHAR2(10 BYTE),
  5    Start_Date         DATE,
  6    End_Date           DATE,
  7    Salary             Number(8,2),
  8    City               VARCHAR2(10 BYTE),
  9    Description        VARCHAR2(15 BYTE)
 10  )
 11  /
Table created.
SQL>
SQL> -- prepare data
SQL> insert into Employee(ID,  First_Name, Last_Name, Start_Date,                     End_Date,                       Salary,  City,       Description)
  2               values ("01","Jason",    "Martin",  to_date("19960725","YYYYMMDD"), to_date("20060725","YYYYMMDD"), 1234.56, "Toronto",  "Programmer")
  3  /
1 row created.
SQL> insert into Employee(ID,  First_Name, Last_Name, Start_Date,                     End_Date,                       Salary,  City,       Description)
  2                values("02","Alison",   "Mathews", to_date("19760321","YYYYMMDD"), to_date("19860221","YYYYMMDD"), 6661.78, "Vancouver","Tester")
  3  /
1 row created.
SQL> insert into Employee(ID,  First_Name, Last_Name, Start_Date,                     End_Date,                       Salary,  City,       Description)
  2                values("03","James",    "Smith",   to_date("19781212","YYYYMMDD"), to_date("19900315","YYYYMMDD"), 6544.78, "Vancouver","Tester")
  3  /
1 row created.
SQL> insert into Employee(ID,  First_Name, Last_Name, Start_Date,                     End_Date,                       Salary,  City,       Description)
  2                values("04","Celia",    "Rice",    to_date("19821024","YYYYMMDD"), to_date("19990421","YYYYMMDD"), 2344.78, "Vancouver","Manager")
  3  /
1 row created.
SQL> insert into Employee(ID,  First_Name, Last_Name, Start_Date,                     End_Date,                       Salary,  City,       Description)
  2                values("05","Robert",   "Black",   to_date("19840115","YYYYMMDD"), to_date("19980808","YYYYMMDD"), 2334.78, "Vancouver","Tester")
  3  /
1 row created.
SQL> insert into Employee(ID,  First_Name, Last_Name, Start_Date,                     End_Date,                       Salary, City,        Description)
  2                values("06","Linda",    "Green",   to_date("19870730","YYYYMMDD"), to_date("19960104","YYYYMMDD"), 4322.78,"New York",  "Tester")
  3  /
1 row created.
SQL> insert into Employee(ID,  First_Name, Last_Name, Start_Date,                     End_Date,                       Salary, City,        Description)
  2                values("07","David",    "Larry",   to_date("19901231","YYYYMMDD"), to_date("19980212","YYYYMMDD"), 7897.78,"New York",  "Manager")
  3  /
1 row created.
SQL> insert into Employee(ID,  First_Name, Last_Name, Start_Date,                     End_Date,                       Salary, City,        Description)
  2                values("08","James",    "Cat",     to_date("19960917","YYYYMMDD"), to_date("20020415","YYYYMMDD"), 1232.78,"Vancouver", "Tester")
  3  /
1 row created.
SQL>
SQL>
SQL>
SQL> -- display data in the table
SQL> select * from Employee
  2  /
ID   FIRST_NAME LAST_NAME  START_DAT END_DATE      SALARY CITY       DESCRIPTION
---- ---------- ---------- --------- --------- ---------- ---------- ---------------
01   Jason      Martin     25-JUL-96 25-JUL-06    1234.56 Toronto    Programmer
02   Alison     Mathews    21-MAR-76 21-FEB-86    6661.78 Vancouver  Tester
03   James      Smith      12-DEC-78 15-MAR-90    6544.78 Vancouver  Tester
04   Celia      Rice       24-OCT-82 21-APR-99    2344.78 Vancouver  Manager
05   Robert     Black      15-JAN-84 08-AUG-98    2334.78 Vancouver  Tester
06   Linda      Green      30-JUL-87 04-JAN-96    4322.78 New York   Tester
07   David      Larry      31-DEC-90 12-FEB-98    7897.78 New York   Manager
08   James      Cat        17-SEP-96 15-APR-02    1232.78 Vancouver  Tester
8 rows selected.
SQL>
SQL>
SQL> COLUMN portion FORMAT 9.9999
SQL> COLUMN portion2 LIKE portion
SQL> SELECT first_name, salary,
  2    salary/SUM(salary) OVER() Portion,
  3    RATIO_TO_REPORT(salary) OVER() Portion2
  4  FROM employee
  5  ORDER BY salary
  6  /
FIRST_NAME     SALARY PORTION PORTION2
---------- ---------- ------- --------
James         1232.78   .0378    .0378
Jason         1234.56   .0379    .0379
Robert        2334.78   .0717    .0717
Celia         2344.78   .0720    .0720
Linda         4322.78   .1327    .1327
James         6544.78   .2009    .2009
Alison        6661.78   .2045    .2045
David         7897.78   .2425    .2425
8 rows selected.
SQL>
SQL>
SQL> -- clean the table
SQL> drop table Employee
  2  /
Table dropped.
SQL>


COLUMN Salary FORMAT 909.99

SQL>
SQL>
SQL>
SQL> -- create demo table
SQL> create table Employee(
  2    ID                 VARCHAR2(4 BYTE)         NOT NULL,
  3    First_Name         VARCHAR2(10 BYTE),
  4    Last_Name          VARCHAR2(10 BYTE),
  5    Start_Date         DATE,
  6    End_Date           DATE,
  7    Salary             Number(8,2),
  8    City               VARCHAR2(10 BYTE),
  9    Description        VARCHAR2(15 BYTE)
 10  )
 11  /
Table created.
SQL>
SQL> -- prepare data
SQL> insert into Employee(ID,  First_Name, Last_Name, Start_Date,                     End_Date,
                  Salary,  City,       Description)
  2               values ("01","Jason",    "Martin",  to_date("19960725","YYYYMMDD"), to_date("20060
725","YYYYMMDD"), 1.56, "Toronto",  "Programmer")
  3  /
1 row created.
SQL> insert into Employee(ID,  First_Name, Last_Name, Start_Date,                     End_Date,
                  Salary,  City,       Description)
  2                values("02","Alison",   "Mathews", to_date("19760321","YYYYMMDD"), to_date("19860
221","YYYYMMDD"), 61.78, "Vancouver","Tester")
  3  /
1 row created.
SQL> insert into Employee(ID,  First_Name, Last_Name, Start_Date,                     End_Date,
                  Salary,  City,       Description)
  2                values("03","James",    "Smith",   to_date("19781212","YYYYMMDD"), to_date("19900
315","YYYYMMDD"), 644.78, "Vancouver","Tester")
  3  /
1 row created.
SQL> insert into Employee(ID,  First_Name, Last_Name, Start_Date,                     End_Date,
                  Salary,  City,       Description)
  2                values("04","Celia",    "Rice",    to_date("19821024","YYYYMMDD"), to_date("19990
421","YYYYMMDD"), 2344.78, "Vancouver","Manager")
  3  /
1 row created.
SQL> insert into Employee(ID,  First_Name, Last_Name, Start_Date,                     End_Date,
                  Salary,  City,       Description)
  2                values("05","Robert",   "Black",   to_date("19840115","YYYYMMDD"), to_date("19980
808","YYYYMMDD"), 2334.78, "Vancouver","Tester")
  3  /
1 row created.
SQL> insert into Employee(ID,  First_Name, Last_Name, Start_Date,                     End_Date,
                  Salary, City,        Description)
  2                values("06","Linda",    "Green",   to_date("19870730","YYYYMMDD"), to_date("19960
104","YYYYMMDD"), 4322.78,"New York",  "Tester")
  3  /
1 row created.
SQL> insert into Employee(ID,  First_Name, Last_Name, Start_Date,                     End_Date,
                  Salary, City,        Description)
  2                values("07","David",    "Larry",   to_date("19901231","YYYYMMDD"), to_date("19980
212","YYYYMMDD"), 7897.78,"New York",  "Manager")
  3  /
1 row created.
SQL> insert into Employee(ID,  First_Name, Last_Name, Start_Date,                     End_Date,
                  Salary, City,        Description)
  2                values("08","James",    "Cat",     to_date("19960917","YYYYMMDD"), to_date("20020
415","YYYYMMDD"), 1232.78,"Vancouver", "Tester")
  3  /
1 row created.
SQL>
SQL>
SQL>
SQL> -- display data in the table
SQL> select * from Employee
  2  /
ID   FIRST_NAME LAST_NAME  START_DAT END_DATE      SALARY CITY       DESCRIPTION
---- ---------- ---------- --------- --------- ---------- ---------- ---------------
01   Jason      Martin     25-JUL-96 25-JUL-06       1.56 Toronto    Programmer
02   Alison     Mathews    21-MAR-76 21-FEB-86      61.78 Vancouver  Tester
03   James      Smith      12-DEC-78 15-MAR-90     644.78 Vancouver  Tester
04   Celia      Rice       24-OCT-82 21-APR-99    2344.78 Vancouver  Manager
05   Robert     Black      15-JAN-84 08-AUG-98    2334.78 Vancouver  Tester
06   Linda      Green      30-JUL-87 04-JAN-96    4322.78 New York   Tester
07   David      Larry      31-DEC-90 12-FEB-98    7897.78 New York   Manager
08   James      Cat        17-SEP-96 15-APR-02    1232.78 Vancouver  Tester
8 rows selected.
SQL>
SQL>
SQL>
SQL> COLUMN Salary FORMAT 909.99
SQL> /
ID   FIRST_NAME LAST_NAME  START_DAT END_DATE   SALARY CITY       DESCRIPTION
---- ---------- ---------- --------- --------- ------- ---------- ---------------
01   Jason      Martin     25-JUL-96 25-JUL-06   01.56 Toronto    Programmer
02   Alison     Mathews    21-MAR-76 21-FEB-86   61.78 Vancouver  Tester
03   James      Smith      12-DEC-78 15-MAR-90  644.78 Vancouver  Tester
04   Celia      Rice       24-OCT-82 21-APR-99 ####### Vancouver  Manager
05   Robert     Black      15-JAN-84 08-AUG-98 ####### Vancouver  Tester
06   Linda      Green      30-JUL-87 04-JAN-96 ####### New York   Tester
07   David      Larry      31-DEC-90 12-FEB-98 ####### New York   Manager
08   James      Cat        17-SEP-96 15-APR-02 ####### Vancouver  Tester
8 rows selected.
SQL> Select salary from Employee
  2  /
 SALARY
-------
  01.56
  61.78
 644.78
#######
#######
#######
#######
#######
8 rows selected.
SQL>
SQL> clear columns;
columns cleared
SQL>
SQL>
SQL> -- clean the table
SQL> drop table Employee
  2  /
Table dropped.
SQL>


COLUMN salary FORMAT $99.99 HEADING "Salary" JUSTIFY RIGHT

SQL>
SQL>
SQL> -- create demo table
SQL> create table Employee(
  2    ID                 VARCHAR2(4 BYTE)         NOT NULL,
  3    First_Name         VARCHAR2(10 BYTE),
  4    Last_Name          VARCHAR2(10 BYTE),
  5    Start_Date         DATE,
  6    End_Date           DATE,
  7    Salary             Number(8,2),
  8    City               VARCHAR2(10 BYTE),
  9    Description        VARCHAR2(15 BYTE)
 10  )
 11  /
Table created.
SQL>
SQL> -- prepare data
SQL> insert into Employee(ID,  First_Name, Last_Name, Start_Date,                     End_Date,                       Salary,  City,       Description)
  2               values ("01","Jason",    "Martin",  to_date("19960725","YYYYMMDD"), to_date("20060725","YYYYMMDD"), 1234.56, "Toronto",  "Programmer")
  3  /
1 row created.
SQL> insert into Employee(ID,  First_Name, Last_Name, Start_Date,                     End_Date,                       Salary,  City,       Description)
  2                values("02","Alison",   "Mathews", to_date("19760321","YYYYMMDD"), to_date("19860221","YYYYMMDD"), 6661.78, "Vancouver","Tester")
  3  /
1 row created.
SQL> insert into Employee(ID,  First_Name, Last_Name, Start_Date,                     End_Date,                       Salary,  City,       Description)
  2                values("03","James",    "Smith",   to_date("19781212","YYYYMMDD"), to_date("19900315","YYYYMMDD"), 6544.78, "Vancouver","Tester")
  3  /
1 row created.
SQL> insert into Employee(ID,  First_Name, Last_Name, Start_Date,                     End_Date,                       Salary,  City,       Description)
  2                values("04","Celia",    "Rice",    to_date("19821024","YYYYMMDD"), to_date("19990421","YYYYMMDD"), 2344.78, "Vancouver","Manager")
  3  /
1 row created.
SQL> insert into Employee(ID,  First_Name, Last_Name, Start_Date,                     End_Date,                       Salary,  City,       Description)
  2                values("05","Robert",   "Black",   to_date("19840115","YYYYMMDD"), to_date("19980808","YYYYMMDD"), 2334.78, "Vancouver","Tester")
  3  /
1 row created.
SQL> insert into Employee(ID,  First_Name, Last_Name, Start_Date,                     End_Date,                       Salary, City,        Description)
  2                values("06","Linda",    "Green",   to_date("19870730","YYYYMMDD"), to_date("19960104","YYYYMMDD"), 4322.78,"New York",  "Tester")
  3  /
1 row created.
SQL> insert into Employee(ID,  First_Name, Last_Name, Start_Date,                     End_Date,                       Salary, City,        Description)
  2                values("07","David",    "Larry",   to_date("19901231","YYYYMMDD"), to_date("19980212","YYYYMMDD"), 7897.78,"New York",  "Manager")
  3  /
1 row created.
SQL> insert into Employee(ID,  First_Name, Last_Name, Start_Date,                     End_Date,                       Salary, City,        Description)
  2                values("08","James",    "Cat",     to_date("19960917","YYYYMMDD"), to_date("20020415","YYYYMMDD"), 1232.78,"Vancouver", "Tester")
  3  /
1 row created.
SQL>
SQL>
SQL>
SQL> -- display data in the table
SQL> select * from Employee
  2  /

ID   FIRST_NAME LAST_NAME  START_DAT END_DATE      SALARY CITY       DESCRIPTION
---- ---------- ---------- --------- --------- ---------- ---------- ---------------
01   Jason      Martin     25-JUL-96 25-JUL-06    1234.56 Toronto    Programmer
02   Alison     Mathews    21-MAR-76 21-FEB-86    6661.78 Vancouver  Tester
03   James      Smith      12-DEC-78 15-MAR-90    6544.78 Vancouver  Tester
04   Celia      Rice       24-OCT-82 21-APR-99    2344.78 Vancouver  Manager
05   Robert     Black      15-JAN-84 08-AUG-98    2334.78 Vancouver  Tester
06   Linda      Green      30-JUL-87 04-JAN-96    4322.78 New York   Tester
07   David      Larry      31-DEC-90 12-FEB-98    7897.78 New York   Manager
08   James      Cat        17-SEP-96 15-APR-02    1232.78 Vancouver  Tester
8 rows selected.
SQL> COLUMN salary FORMAT $99.99 HEADING "Salary" JUSTIFY RIGHT;
SQL>
SQL> select * from employee;

ID   FIRST_NAME LAST_NAME  START_DAT END_DATE   Salary CITY       DESCRIPTION
---- ---------- ---------- --------- --------- ------- ---------- ---------------
01   Jason      Martin     25-JUL-96 25-JUL-06 ####### Toronto    Programmer
02   Alison     Mathews    21-MAR-76 21-FEB-86 ####### Vancouver  Tester
03   James      Smith      12-DEC-78 15-MAR-90 ####### Vancouver  Tester
04   Celia      Rice       24-OCT-82 21-APR-99 ####### Vancouver  Manager
05   Robert     Black      15-JAN-84 08-AUG-98 ####### Vancouver  Tester
06   Linda      Green      30-JUL-87 04-JAN-96 ####### New York   Tester
07   David      Larry      31-DEC-90 12-FEB-98 ####### New York   Manager
08   James      Cat        17-SEP-96 15-APR-02 ####### Vancouver  Tester
8 rows selected.
SQL> clear columns;
columns cleared
SQL>
SQL>
SQL> -- clean the table
SQL> drop table Employee
  2  /
Table dropped.
SQL>
SQL> clear columns;
columns cleared
SQL>
SQL>


Copy column format with "col ... like"

SQL>
SQL> create table emp
  2  ( empno      NUMBER(4)    constraint E_PK primary key
  3  , ename      VARCHAR2(8)
  4  , init       VARCHAR2(5)
  5  , job        VARCHAR2(8)
  6  , mgr        NUMBER(4)
  7  , bdate      DATE
  8  , sal        NUMBER(6,2)
  9  , comm       NUMBER(6,2)
 10  , deptno     NUMBER(2)    default 10
 11  ) ;
Table created.
SQL> insert into emp values(1,"Tom","N",   "TRAINER", 13,date "1965-12-17",  800 , NULL,  20);
1 row created.
SQL> insert into emp values(2,"Jack","JAM", "Tester",6,date "1961-02-20",  1600, 300,   30);
1 row created.
SQL> insert into emp values(3,"Wil","TF" ,  "Tester",6,date "1962-02-22",  1250, 500,   30);
1 row created.
SQL> insert into emp values(4,"Jane","JM",  "Designer", 9,date "1967-04-02",  2975, NULL,  20);
1 row created.
SQL> insert into emp values(5,"Mary","P",  "Tester",6,date "1956-09-28",  1250, 1400,  30);
1 row created.
SQL> insert into emp values(6,"Black","R",   "Designer", 9,date "1963-11-01",  2850, NULL,  30);
1 row created.
SQL> insert into emp values(7,"Chris","AB",  "Designer", 9,date "1965-06-09",  2450, NULL,  10);
1 row created.
SQL> insert into emp values(8,"Smart","SCJ", "TRAINER", 4,date "1959-11-26",  3000, NULL,  20);
1 row created.
SQL> insert into emp values(9,"Peter","CC",   "Designer",NULL,date "1952-11-17",  5000, NULL,  10);
1 row created.
SQL> insert into emp values(10,"Take","JJ", "Tester",6,date "1968-09-28",  1500, 0,     30);
1 row created.
SQL> insert into emp values(11,"Ana","AA",  "TRAINER", 8,date "1966-12-30",  1100, NULL,  20);
1 row created.
SQL> insert into emp values(12,"Jane","R",   "Manager",   6,date "1969-12-03",  800 , NULL,  30);
1 row created.
SQL> insert into emp values(13,"Fake","MG",   "TRAINER", 4,date "1959-02-13",  3000, NULL,  20);
1 row created.
SQL> insert into emp values(14,"Mike","TJA","Manager",   7,date "1962-01-23",  1300, NULL,  10);
1 row created.
SQL>
SQL> select empno, ename, bdate
  2  ,      sal         as salary
  3  ,      comm         as commission
  4  from   emp;
Enter...
 EMPNO ENAME    BDATE      SALARY COMMISSION
------ -------- ---------- ------ ----------
     1 Tom      17-12-1965    800  [N/A]
     2 Jack     20-02-1961   1600        300
     3 Wil      22-02-1962   1250        500
     4 Jane     02-04-1967   2975  [N/A]
     5 Mary     28-09-1956   1250       1400
     6 Black    01-11-1963   2850  [N/A]
     7 Chris    09-06-1965   2450  [N/A]
     8 Smart    26-11-1959   3000  [N/A]
     9 Peter    17-11-1952   5000  [N/A]
    10 Take     28-09-1968   1500          0
    11 Ana      30-12-1966   1100  [N/A]
    12 Jane     03-12-1969    800  [N/A]
    13 Fake     13-02-1959   3000  [N/A]
    14 Mike     23-01-1962   1300  [N/A]
14 rows selected.
SQL> col ename      format  a20 hea lname jus c
SQL> col salary     format  $9999.99
SQL> col commission like    salary
SQL> col salary     heading month|salary
SQL>
SQL> drop table emp;
Table dropped.
SQL>
SQL>


For alphanumeric columns, if the column is too short, it will be displayed on multiple lines.

For example, if the COLUMN format for first_name were too short, as shown below:



SQL>
SQL> -- create demo table
SQL> create table Employee(
  2    ID                 VARCHAR2(4 BYTE)         NOT NULL,
  3    First_Name         VARCHAR2(10 BYTE),
  4    Last_Name          VARCHAR2(10 BYTE),
  5    Start_Date         DATE,
  6    End_Date           DATE,
  7    Salary             Number(8,2),
  8    City               VARCHAR2(10 BYTE),
  9    Description        VARCHAR2(15 BYTE)
 10  )
 11  /
Table created.
SQL>
SQL> -- prepare data
SQL> insert into Employee(ID,  First_Name, Last_Name, Start_Date,                     End_Date,
                  Salary,  City,       Description)
  2               values ("01","Jason",    "Martin",  to_date("19960725","YYYYMMDD"), to_date("20060
725","YYYYMMDD"), 1234.56, "Toronto",  "Programmer")
  3  /
1 row created.
SQL> insert into Employee(ID,  First_Name, Last_Name, Start_Date,                     End_Date,
                  Salary,  City,       Description)
  2                values("02","Alison",   "Mathews", to_date("19760321","YYYYMMDD"), to_date("19860
221","YYYYMMDD"), 6661.78, "Vancouver","Tester")
  3  /
1 row created.
SQL> insert into Employee(ID,  First_Name, Last_Name, Start_Date,                     End_Date,
                  Salary,  City,       Description)
  2                values("03","James",    "Smith",   to_date("19781212","YYYYMMDD"), to_date("19900
315","YYYYMMDD"), 6544.78, "Vancouver","Tester")
  3  /
1 row created.
SQL> insert into Employee(ID,  First_Name, Last_Name, Start_Date,                     End_Date,
                  Salary,  City,       Description)
  2                values("04","Celia",    "Rice",    to_date("19821024","YYYYMMDD"), to_date("19990
421","YYYYMMDD"), 2344.78, "Vancouver","Manager")
  3  /
1 row created.
SQL> insert into Employee(ID,  First_Name, Last_Name, Start_Date,                     End_Date,
                  Salary,  City,       Description)
  2                values("05","Robert",   "Black",   to_date("19840115","YYYYMMDD"), to_date("19980
808","YYYYMMDD"), 2334.78, "Vancouver","Tester")
  3  /
1 row created.
SQL> insert into Employee(ID,  First_Name, Last_Name, Start_Date,                     End_Date,
                  Salary, City,        Description)
  2                values("06","Linda",    "Green",   to_date("19870730","YYYYMMDD"), to_date("19960
104","YYYYMMDD"), 4322.78,"New York",  "Tester")
  3  /
1 row created.
SQL> insert into Employee(ID,  First_Name, Last_Name, Start_Date,                     End_Date,
                  Salary, City,        Description)
  2                values("07","David",    "Larry",   to_date("19901231","YYYYMMDD"), to_date("19980
212","YYYYMMDD"), 7897.78,"New York",  "Manager")
  3  /
1 row created.
SQL> insert into Employee(ID,  First_Name, Last_Name, Start_Date,                     End_Date,
                  Salary, City,        Description)
  2                values("08","James",    "Cat",     to_date("19960917","YYYYMMDD"), to_date("20020
415","YYYYMMDD"), 1232.78,"Vancouver", "Tester")
  3  /
1 row created.
SQL>
SQL>
SQL>
SQL> -- display data in the table
SQL> select * from Employee
  2  /
ID   FIRST_NAME  LAST_NAME  START_DAT END_DATE      SALARY CITY       DESCRIPTION
---- ----------- ---------- --------- --------- ---------- ---------- ---------------
01   Jason       Martin     25-JUL-96 25-JUL-06    1234.56 Toronto    Programmer
02   Alison      Mathews    21-MAR-76 21-FEB-86    6661.78 Vancouver  Tester
03   James       Smith      12-DEC-78 15-MAR-90    6544.78 Vancouver  Tester
04   Celia       Rice       24-OCT-82 21-APR-99    2344.78 Vancouver  Manager
05   Robert      Black      15-JAN-84 08-AUG-98    2334.78 Vancouver  Tester
06   Linda       Green      30-JUL-87 04-JAN-96    4322.78 New York   Tester
07   David       Larry      31-DEC-90 12-FEB-98    7897.78 New York   Manager
08   James       Cat        17-SEP-96 15-APR-02    1232.78 Vancouver  Tester
8 rows selected.
SQL>
SQL>
SQL> COLUMN First_Name FORMAT a4
SQL> /
ID   FIRS LAST_NAME  START_DAT END_DATE      SALARY CITY       DESCRIPTION
---- ---- ---------- --------- --------- ---------- ---------- ---------------
01   Jaso Martin     25-JUL-96 25-JUL-06    1234.56 Toronto    Programmer
     n
02   Alis Mathews    21-MAR-76 21-FEB-86    6661.78 Vancouver  Tester
     on
03   Jame Smith      12-DEC-78 15-MAR-90    6544.78 Vancouver  Tester
     s
04   Celi Rice       24-OCT-82 21-APR-99    2344.78 Vancouver  Manager
     a
05   Robe Black      15-JAN-84 08-AUG-98    2334.78 Vancouver  Tester
     rt
06   Lind Green      30-JUL-87 04-JAN-96    4322.78 New York   Tester
     a
07   Davi Larry      31-DEC-90 12-FEB-98    7897.78 New York   Manager
     d
08   Jame Cat        17-SEP-96 15-APR-02    1232.78 Vancouver  Tester
     s

8 rows selected.
SQL> SELECT * FROM employee
  2  /
ID   FIRS LAST_NAME  START_DAT END_DATE      SALARY CITY       DESCRIPTION
---- ---- ---------- --------- --------- ---------- ---------- ---------------
01   Jaso Martin     25-JUL-96 25-JUL-06    1234.56 Toronto    Programmer
     n
02   Alis Mathews    21-MAR-76 21-FEB-86    6661.78 Vancouver  Tester
     on
03   Jame Smith      12-DEC-78 15-MAR-90    6544.78 Vancouver  Tester
     s
04   Celi Rice       24-OCT-82 21-APR-99    2344.78 Vancouver  Manager
     a
05   Robe Black      15-JAN-84 08-AUG-98    2334.78 Vancouver  Tester
     rt
06   Lind Green      30-JUL-87 04-JAN-96    4322.78 New York   Tester
     a
07   Davi Larry      31-DEC-90 12-FEB-98    7897.78 New York   Manager
     d
08   Jame Cat        17-SEP-96 15-APR-02    1232.78 Vancouver  Tester
     s

8 rows selected.
SQL>
SQL>
SQL> -- clean the table
SQL> drop table Employee
  2  /
Table dropped.
SQL>


format interval type column

SQL> create table myTable(
  2        break_time   interval day(1) to second(2)
  3  );
Table created.
SQL>
SQL>
SQL> insert into myTable (break_time )
  2  values (TIMESTAMP "2001-09-03 12:47:00.000000" - TIMESTAMP "2001-09-03 13:13:00.000000" );
1 row created.
SQL>
SQL> insert into myTable ( break_time )
  2  values ( TIMESTAMP "2001-09-03 13:35:00.000000" - TIMESTAMP "2001-09-03 13:39:00.000000" );
1 row created.
SQL>
SQL> insert into myTable ( break_time )
  2  values (TIMESTAMP "2001-09-03 16:30:00.000000" - TIMESTAMP "2001-09-03 17:00:00.000000" );
1 row created.
SQL>
SQL> insert into myTable ( break_time )
  2  values ( TIMESTAMP "2001-09-03 17:00:00.000000" - TIMESTAMP "2001-09-03 17:30:00.000000" );
1 row created.
SQL>
SQL> column break_time format a30
SQL>
SQL> select * from myTable;

BREAK_TIME
------------------------------
-0 00:26:00.00
-0 00:04:00.00
-0 00:30:00.00
-0 00:30:00.00
4 rows selected.
SQL>
SQL> drop table myTable;
Table dropped.


FORMAT number column as 999,999

SQL>
SQL>
SQL>
SQL> -- create demo table
SQL> create table Employee(
  2    ID                 VARCHAR2(4 BYTE)         NOT NULL,
  3    First_Name         VARCHAR2(10 BYTE),
  4    Last_Name          VARCHAR2(10 BYTE),
  5    Start_Date         DATE,
  6    End_Date           DATE,
  7    Salary             Number(8,2),
  8    City               VARCHAR2(10 BYTE),
  9    Description        VARCHAR2(15 BYTE)
 10  )
 11  /
Table created.
SQL>
SQL> -- prepare data
SQL> insert into Employee(ID,  First_Name, Last_Name, Start_Date,                     End_Date,
                  Salary,  City,       Description)
  2               values ("01","Jason",    "Martin",  to_date("19960725","YYYYMMDD"), to_date("20060
725","YYYYMMDD"), 1234.56, "Toronto",  "Programmer")
  3  /
1 row created.
SQL> insert into Employee(ID,  First_Name, Last_Name, Start_Date,                     End_Date,
                  Salary,  City,       Description)
  2                values("02","Alison",   "Mathews", to_date("19760321","YYYYMMDD"), to_date("19860
221","YYYYMMDD"), 6661.78, "Vancouver","Tester")
  3  /
1 row created.
SQL> insert into Employee(ID,  First_Name, Last_Name, Start_Date,                     End_Date,
                  Salary,  City,       Description)
  2                values("03","James",    "Smith",   to_date("19781212","YYYYMMDD"), to_date("19900
315","YYYYMMDD"), 6544.78, "Vancouver","Tester")
  3  /
1 row created.
SQL> insert into Employee(ID,  First_Name, Last_Name, Start_Date,                     End_Date,
                  Salary,  City,       Description)
  2                values("04","Celia",    "Rice",    to_date("19821024","YYYYMMDD"), to_date("19990
421","YYYYMMDD"), 2344.78, "Vancouver","Manager")
  3  /
1 row created.
SQL> insert into Employee(ID,  First_Name, Last_Name, Start_Date,                     End_Date,
                  Salary,  City,       Description)
  2                values("05","Robert",   "Black",   to_date("19840115","YYYYMMDD"), to_date("19980
808","YYYYMMDD"), 2334.78, "Vancouver","Tester")
  3  /
1 row created.
SQL> insert into Employee(ID,  First_Name, Last_Name, Start_Date,                     End_Date,
                  Salary, City,        Description)
  2                values("06","Linda",    "Green",   to_date("19870730","YYYYMMDD"), to_date("19960
104","YYYYMMDD"), 4322.78,"New York",  "Tester")
  3  /
1 row created.
SQL> insert into Employee(ID,  First_Name, Last_Name, Start_Date,                     End_Date,
                  Salary, City,        Description)
  2                values("07","David",    "Larry",   to_date("19901231","YYYYMMDD"), to_date("19980
212","YYYYMMDD"), 7897.78,"New York",  "Manager")
  3  /
1 row created.
SQL> insert into Employee(ID,  First_Name, Last_Name, Start_Date,                     End_Date,
                  Salary, City,        Description)
  2                values("08","James",    "Cat",     to_date("19960917","YYYYMMDD"), to_date("20020
415","YYYYMMDD"), 1232.78,"Vancouver", "Tester")
  3  /
1 row created.
SQL>
SQL>
SQL>
SQL> -- display data in the table
SQL> select * from Employee
  2  /
ID   FIRS LAST_NAME  START_DAT END_DATE  SALARY CITY       DESCRIPTION
---- ---- ---------- --------- --------- ------ ---------- ---------------
01   Jaso Martin     25-JUL-96 25-JUL-06    ### Toronto    Programmer
     n
02   Alis Mathews    21-MAR-76 21-FEB-86    ### Vancouver  Tester
     on
03   Jame Smith      12-DEC-78 15-MAR-90    ### Vancouver  Tester
     s
04   Celi Rice       24-OCT-82 21-APR-99    ### Vancouver  Manager
     a
05   Robe Black      15-JAN-84 08-AUG-98    ### Vancouver  Tester
     rt
06   Lind Green      30-JUL-87 04-JAN-96    ### New York   Tester
     a
07   Davi Larry      31-DEC-90 12-FEB-98    ### New York   Manager
     d
08   Jame Cat        17-SEP-96 15-APR-02    ### Vancouver  Tester
     s

8 rows selected.
SQL>
SQL>
SQL>
SQL>
SQL> COLUMN Salary FORMAT 999,999
SQL> /
ID   FIRS LAST_NAME  START_DAT END_DATE    SALARY CITY       DESCRIPTION
---- ---- ---------- --------- --------- -------- ---------- ---------------
01   Jaso Martin     25-JUL-96 25-JUL-06    1,235 Toronto    Programmer
     n
02   Alis Mathews    21-MAR-76 21-FEB-86    6,662 Vancouver  Tester
     on
03   Jame Smith      12-DEC-78 15-MAR-90    6,545 Vancouver  Tester
     s
04   Celi Rice       24-OCT-82 21-APR-99    2,345 Vancouver  Manager
     a
05   Robe Black      15-JAN-84 08-AUG-98    2,335 Vancouver  Tester
     rt
06   Lind Green      30-JUL-87 04-JAN-96    4,323 New York   Tester
     a
07   Davi Larry      31-DEC-90 12-FEB-98    7,898 New York   Manager
     d
08   Jame Cat        17-SEP-96 15-APR-02    1,233 Vancouver  Tester
     s

8 rows selected.
SQL> SELECT salary FROM employee
  2  /
  SALARY
--------
   1,235
   6,662
   6,545
   2,345
   2,335
   4,323
   7,898
   1,233
8 rows selected.
SQL>
SQL>
SQL>
SQL> -- clean the table
SQL> drop table Employee
  2  /
Table dropped.
SQL>
SQL>


Format the number column with COLUMN salary FORMAT 99999999

SQL>
SQL>
SQL> -- create demo table
SQL> create table Employee(
  2    ID                 VARCHAR2(4 BYTE)         NOT NULL,
  3    First_Name         VARCHAR2(10 BYTE),
  4    Last_Name          VARCHAR2(10 BYTE),
  5    Start_Date         DATE,
  6    End_Date           DATE,
  7    Salary             Number(8,2),
  8    City               VARCHAR2(10 BYTE),
  9    Description        VARCHAR2(15 BYTE)
 10  )
 11  /
Table created.
SQL>
SQL> -- prepare data
SQL> insert into Employee(ID,  First_Name, Last_Name, Start_Date,                     End_Date,
                  Salary,  City,       Description)
  2               values ("01","Jason",    "Martin",  to_date("19960725","YYYYMMDD"), to_date("20060
725","YYYYMMDD"), 1234.56, "Toronto",  "Programmer")
  3  /
1 row created.
SQL> insert into Employee(ID,  First_Name, Last_Name, Start_Date,                     End_Date,
                  Salary,  City,       Description)
  2                values("02","Alison",   "Mathews", to_date("19760321","YYYYMMDD"), to_date("19860
221","YYYYMMDD"), 6661.78, "Vancouver","Tester")
  3  /
1 row created.
SQL> insert into Employee(ID,  First_Name, Last_Name, Start_Date,                     End_Date,
                  Salary,  City,       Description)
  2                values("03","James",    "Smith",   to_date("19781212","YYYYMMDD"), to_date("19900
315","YYYYMMDD"), 6544.78, "Vancouver","Tester")
  3  /
1 row created.
SQL> insert into Employee(ID,  First_Name, Last_Name, Start_Date,                     End_Date,
                  Salary,  City,       Description)
  2                values("04","Celia",    "Rice",    to_date("19821024","YYYYMMDD"), to_date("19990
421","YYYYMMDD"), 2344.78, "Vancouver","Manager")
  3  /
1 row created.
SQL> insert into Employee(ID,  First_Name, Last_Name, Start_Date,                     End_Date,
                  Salary,  City,       Description)
  2                values("05","Robert",   "Black",   to_date("19840115","YYYYMMDD"), to_date("19980
808","YYYYMMDD"), 2334.78, "Vancouver","Tester")
  3  /
1 row created.
SQL> insert into Employee(ID,  First_Name, Last_Name, Start_Date,                     End_Date,
                  Salary, City,        Description)
  2                values("06","Linda",    "Green",   to_date("19870730","YYYYMMDD"), to_date("19960
104","YYYYMMDD"), 4322.78,"New York",  "Tester")
  3  /
1 row created.
SQL> insert into Employee(ID,  First_Name, Last_Name, Start_Date,                     End_Date,
                  Salary, City,        Description)
  2                values("07","David",    "Larry",   to_date("19901231","YYYYMMDD"), to_date("19980
212","YYYYMMDD"), 7897.78,"New York",  "Manager")
  3  /
1 row created.
SQL> insert into Employee(ID,  First_Name, Last_Name, Start_Date,                     End_Date,
                  Salary, City,        Description)
  2                values("08","James",    "Cat",     to_date("19960917","YYYYMMDD"), to_date("20020
415","YYYYMMDD"), 1232.78,"Vancouver", "Tester")
  3  /
1 row created.
SQL>
SQL>
SQL>
SQL> -- display data in the table
SQL> select * from Employee
  2  /
ID   FIRS LAST_NAME  START_DAT END_DATE      SALARY CITY       DESCRIPTION
---- ---- ---------- --------- --------- ---------- ---------- ---------------
01   Jaso Martin     25-JUL-96 25-JUL-06    1234.56 Toronto    Programmer
     n
02   Alis Mathews    21-MAR-76 21-FEB-86    6661.78 Vancouver  Tester
     on
03   Jame Smith      12-DEC-78 15-MAR-90    6544.78 Vancouver  Tester
     s
04   Celi Rice       24-OCT-82 21-APR-99    2344.78 Vancouver  Manager
     a
05   Robe Black      15-JAN-84 08-AUG-98    2334.78 Vancouver  Tester
     rt
06   Lind Green      30-JUL-87 04-JAN-96    4322.78 New York   Tester
     a
07   Davi Larry      31-DEC-90 12-FEB-98    7897.78 New York   Manager
     d
08   Jame Cat        17-SEP-96 15-APR-02    1232.78 Vancouver  Tester
     s

8 rows selected.
SQL>
SQL>
SQL> COLUMN salary FORMAT 99999999
SQL> /
ID   FIRS LAST_NAME  START_DAT END_DATE     SALARY CITY       DESCRIPTION
---- ---- ---------- --------- --------- --------- ---------- ---------------
01   Jaso Martin     25-JUL-96 25-JUL-06      1235 Toronto    Programmer
     n
02   Alis Mathews    21-MAR-76 21-FEB-86      6662 Vancouver  Tester
     on
03   Jame Smith      12-DEC-78 15-MAR-90      6545 Vancouver  Tester
     s
04   Celi Rice       24-OCT-82 21-APR-99      2345 Vancouver  Manager
     a
05   Robe Black      15-JAN-84 08-AUG-98      2335 Vancouver  Tester
     rt
06   Lind Green      30-JUL-87 04-JAN-96      4323 New York   Tester
     a
07   Davi Larry      31-DEC-90 12-FEB-98      7898 New York   Manager
     d
08   Jame Cat        17-SEP-96 15-APR-02      1233 Vancouver  Tester
     s

8 rows selected.
SQL> SELECT salary FROM employee
  2  /
   SALARY
---------
     1235
     6662
     6545
     2345
     2335
     4323
     7898
     1233
8 rows selected.
SQL>
SQL>
SQL>
SQL> -- clean the table
SQL> drop table Employee
  2  /
Table dropped.


Formatting Columns

COLUMN command formats the display of column headings and column data.

The simplified syntax for the COLUMN command is as follows:

COL[UMN] {column | alias} [options]

where

  1. column specifies the column name.
  2. alias specifies the column alias to be formatted. You can then reference your alias in the COLUMN command.
  3. options specifies one or more options to be used to format the column or alias.
  4. There are a number of options you can use with the COLUMN command.

The following table shows some of these options.

Option Description FOR[MAT] format Sets the format for the display of the column or alias to that specified in the format string. HEA[DING] heading Sets the text for the heading of the column or alias to that specified in the heading string. JUS[TIFY] [{ left | center | right }] Aligns the column output to the left, center, or right. WRA[PPED] Wraps the end of a string onto the next line of output. This option may cause individual words to be split across multiple lines. WOR[D_WRAPPED] Similar to the WRAPPED option except that individual words aren"t split across two lines. CLE[AR] Clears any formatting of columns (sets the formatting back to the default).

The format string in the previous table may take a number of formatting parameters.

The parameters you specify depend on the data stored in your column:

  1. If your column contains characters, you can use Ax to format the characters, where x specifies the width for the characters. For example, A12 sets the width to 12 characters.
  2. If your column contains numbers, you can use any of the number formats. For example, $99.99 sets the format to a dollar sign, followed by two digits, the decimal point, and another two digits.
  3. If your column contains a date, you can use any of the date formats. For example, MM-DD-YYYY sets the format to a two-digit month (MM), a two-digit day (DD), and a four-digit year (YYYY).

Advanced SQL Functions in Oracle 10g (Wordware Applications Library)

(Paperback)

by Richard Earp (Author)

# Paperback: 350 pages

# Publisher: Wordware Publishing, Inc. (January 25, 2006)

# Language: English

# ISBN-10: 1598220217

# ISBN-13: 978-1598220216

If the column format is too small for a number column, "#" will be used

SQL>
SQL>
SQL> -- create demo table
SQL> create table Employee(
  2    ID                 VARCHAR2(4 BYTE)         NOT NULL,
  3    First_Name         VARCHAR2(10 BYTE),
  4    Last_Name          VARCHAR2(10 BYTE),
  5    Start_Date         DATE,
  6    End_Date           DATE,
  7    Salary             Number(8,2),
  8    City               VARCHAR2(10 BYTE),
  9    Description        VARCHAR2(15 BYTE)
 10  )
 11  /
Table created.
SQL>
SQL> -- prepare data
SQL> insert into Employee(ID,  First_Name, Last_Name, Start_Date,                     End_Date,
                  Salary,  City,       Description)
  2               values ("01","Jason",    "Martin",  to_date("19960725","YYYYMMDD"), to_date("20060
725","YYYYMMDD"), 1234.56, "Toronto",  "Programmer")
  3  /
1 row created.
SQL> insert into Employee(ID,  First_Name, Last_Name, Start_Date,                     End_Date,
                  Salary,  City,       Description)
  2                values("02","Alison",   "Mathews", to_date("19760321","YYYYMMDD"), to_date("19860
221","YYYYMMDD"), 6661.78, "Vancouver","Tester")
  3  /
1 row created.
SQL> insert into Employee(ID,  First_Name, Last_Name, Start_Date,                     End_Date,
                  Salary,  City,       Description)
  2                values("03","James",    "Smith",   to_date("19781212","YYYYMMDD"), to_date("19900
315","YYYYMMDD"), 6544.78, "Vancouver","Tester")
  3  /
1 row created.
SQL> insert into Employee(ID,  First_Name, Last_Name, Start_Date,                     End_Date,
                  Salary,  City,       Description)
  2                values("04","Celia",    "Rice",    to_date("19821024","YYYYMMDD"), to_date("19990
421","YYYYMMDD"), 2344.78, "Vancouver","Manager")
  3  /
1 row created.
SQL> insert into Employee(ID,  First_Name, Last_Name, Start_Date,                     End_Date,
                  Salary,  City,       Description)
  2                values("05","Robert",   "Black",   to_date("19840115","YYYYMMDD"), to_date("19980
808","YYYYMMDD"), 2334.78, "Vancouver","Tester")
  3  /
1 row created.
SQL> insert into Employee(ID,  First_Name, Last_Name, Start_Date,                     End_Date,
                  Salary, City,        Description)
  2                values("06","Linda",    "Green",   to_date("19870730","YYYYMMDD"), to_date("19960
104","YYYYMMDD"), 4322.78,"New York",  "Tester")
  3  /
1 row created.
SQL> insert into Employee(ID,  First_Name, Last_Name, Start_Date,                     End_Date,
                  Salary, City,        Description)
  2                values("07","David",    "Larry",   to_date("19901231","YYYYMMDD"), to_date("19980
212","YYYYMMDD"), 7897.78,"New York",  "Manager")
  3  /
1 row created.
SQL> insert into Employee(ID,  First_Name, Last_Name, Start_Date,                     End_Date,
                  Salary, City,        Description)
  2                values("08","James",    "Cat",     to_date("19960917","YYYYMMDD"), to_date("20020
415","YYYYMMDD"), 1232.78,"Vancouver", "Tester")
  3  /
1 row created.
SQL>
SQL>
SQL>
SQL> -- display data in the table
SQL> select * from Employee
  2  /
ID   FIRS LAST_NAME  START_DAT END_DATE     SALARY CITY       DESCRIPTION
---- ---- ---------- --------- --------- --------- ---------- ---------------
01   Jaso Martin     25-JUL-96 25-JUL-06      1235 Toronto    Programmer
     n
02   Alis Mathews    21-MAR-76 21-FEB-86      6662 Vancouver  Tester
     on
03   Jame Smith      12-DEC-78 15-MAR-90      6545 Vancouver  Tester
     s
04   Celi Rice       24-OCT-82 21-APR-99      2345 Vancouver  Manager
     a
05   Robe Black      15-JAN-84 08-AUG-98      2335 Vancouver  Tester
     rt
06   Lind Green      30-JUL-87 04-JAN-96      4323 New York   Tester
     a
07   Davi Larry      31-DEC-90 12-FEB-98      7898 New York   Manager
     d
08   Jame Cat        17-SEP-96 15-APR-02      1233 Vancouver  Tester
     s

8 rows selected.
SQL>
SQL>
SQL>
SQL> COLUMN salary FORMAT 99
SQL> /
ID   FIRS LAST_NAME  START_DAT END_DATE  SALARY CITY       DESCRIPTION
---- ---- ---------- --------- --------- ------ ---------- ---------------
01   Jaso Martin     25-JUL-96 25-JUL-06    ### Toronto    Programmer
     n
02   Alis Mathews    21-MAR-76 21-FEB-86    ### Vancouver  Tester
     on
03   Jame Smith      12-DEC-78 15-MAR-90    ### Vancouver  Tester
     s
04   Celi Rice       24-OCT-82 21-APR-99    ### Vancouver  Manager
     a
05   Robe Black      15-JAN-84 08-AUG-98    ### Vancouver  Tester
     rt
06   Lind Green      30-JUL-87 04-JAN-96    ### New York   Tester
     a
07   Davi Larry      31-DEC-90 12-FEB-98    ### New York   Manager
     d
08   Jame Cat        17-SEP-96 15-APR-02    ### Vancouver  Tester
     s

8 rows selected.
SQL> SELECT * FROM employee
  2  /
ID   FIRS LAST_NAME  START_DAT END_DATE  SALARY CITY       DESCRIPTION
---- ---- ---------- --------- --------- ------ ---------- ---------------
01   Jaso Martin     25-JUL-96 25-JUL-06    ### Toronto    Programmer
     n
02   Alis Mathews    21-MAR-76 21-FEB-86    ### Vancouver  Tester
     on
03   Jame Smith      12-DEC-78 15-MAR-90    ### Vancouver  Tester
     s
04   Celi Rice       24-OCT-82 21-APR-99    ### Vancouver  Manager
     a
05   Robe Black      15-JAN-84 08-AUG-98    ### Vancouver  Tester
     rt
06   Lind Green      30-JUL-87 04-JAN-96    ### New York   Tester
     a
07   Davi Larry      31-DEC-90 12-FEB-98    ### New York   Manager
     d
08   Jame Cat        17-SEP-96 15-APR-02    ### Vancouver  Tester
     s

8 rows selected.
SQL>
SQL>
SQL> -- clean the table
SQL> drop table Employee
  2  /
Table dropped.
SQL>


If there are decimals or if commas are desired, use the "99999.99"

SQL>
SQL>
SQL>
SQL> -- create demo table
SQL> create table Employee(
  2    ID                 VARCHAR2(4 BYTE)         NOT NULL,
  3    First_Name         VARCHAR2(10 BYTE),
  4    Last_Name          VARCHAR2(10 BYTE),
  5    Start_Date         DATE,
  6    End_Date           DATE,
  7    Salary             Number(8,2),
  8    City               VARCHAR2(10 BYTE),
  9    Description        VARCHAR2(15 BYTE)
 10  )
 11  /
Table created.
SQL>
SQL> -- prepare data
SQL> insert into Employee(ID,  First_Name, Last_Name, Start_Date,                     End_Date,
                  Salary,  City,       Description)
  2               values ("01","Jason",    "Martin",  to_date("19960725","YYYYMMDD"), to_date("20060
725","YYYYMMDD"), 1234.56, "Toronto",  "Programmer")
  3  /
1 row created.
SQL> insert into Employee(ID,  First_Name, Last_Name, Start_Date,                     End_Date,
                  Salary,  City,       Description)
  2                values("02","Alison",   "Mathews", to_date("19760321","YYYYMMDD"), to_date("19860
221","YYYYMMDD"), 6661.78, "Vancouver","Tester")
  3  /
1 row created.
SQL> insert into Employee(ID,  First_Name, Last_Name, Start_Date,                     End_Date,
                  Salary,  City,       Description)
  2                values("03","James",    "Smith",   to_date("19781212","YYYYMMDD"), to_date("19900
315","YYYYMMDD"), 6544.78, "Vancouver","Tester")
  3  /
1 row created.
SQL> insert into Employee(ID,  First_Name, Last_Name, Start_Date,                     End_Date,
                  Salary,  City,       Description)
  2                values("04","Celia",    "Rice",    to_date("19821024","YYYYMMDD"), to_date("19990
421","YYYYMMDD"), 2344.78, "Vancouver","Manager")
  3  /
1 row created.
SQL> insert into Employee(ID,  First_Name, Last_Name, Start_Date,                     End_Date,
                  Salary,  City,       Description)
  2                values("05","Robert",   "Black",   to_date("19840115","YYYYMMDD"), to_date("19980
808","YYYYMMDD"), 2334.78, "Vancouver","Tester")
  3  /
1 row created.
SQL> insert into Employee(ID,  First_Name, Last_Name, Start_Date,                     End_Date,
                  Salary, City,        Description)
  2                values("06","Linda",    "Green",   to_date("19870730","YYYYMMDD"), to_date("19960
104","YYYYMMDD"), 4322.78,"New York",  "Tester")
  3  /
1 row created.
SQL> insert into Employee(ID,  First_Name, Last_Name, Start_Date,                     End_Date,
                  Salary, City,        Description)
  2                values("07","David",    "Larry",   to_date("19901231","YYYYMMDD"), to_date("19980
212","YYYYMMDD"), 7897.78,"New York",  "Manager")
  3  /
1 row created.
SQL> insert into Employee(ID,  First_Name, Last_Name, Start_Date,                     End_Date,
                  Salary, City,        Description)
  2                values("08","James",    "Cat",     to_date("19960917","YYYYMMDD"), to_date("20020
415","YYYYMMDD"), 1232.78,"Vancouver", "Tester")
  3  /
1 row created.
SQL>
SQL>
SQL>
SQL> -- display data in the table
SQL> select * from Employee
  2  /
ID   FIRS LAST_NAME  START_DAT END_DATE    SALARY CITY       DESCRIPTION
---- ---- ---------- --------- --------- -------- ---------- ---------------
01   Jaso Martin     25-JUL-96 25-JUL-06    1,235 Toronto    Programmer
     n
02   Alis Mathews    21-MAR-76 21-FEB-86    6,662 Vancouver  Tester
     on
03   Jame Smith      12-DEC-78 15-MAR-90    6,545 Vancouver  Tester
     s
04   Celi Rice       24-OCT-82 21-APR-99    2,345 Vancouver  Manager
     a
05   Robe Black      15-JAN-84 08-AUG-98    2,335 Vancouver  Tester
     rt
06   Lind Green      30-JUL-87 04-JAN-96    4,323 New York   Tester
     a
07   Davi Larry      31-DEC-90 12-FEB-98    7,898 New York   Manager
     d
08   Jame Cat        17-SEP-96 15-APR-02    1,233 Vancouver  Tester
     s

8 rows selected.
SQL>
SQL>
SQL>
SQL> COLUMN Salary FORMAT 99999.99
SQL> /
ID   FIRS LAST_NAME  START_DAT END_DATE     SALARY CITY       DESCRIPTION
---- ---- ---------- --------- --------- --------- ---------- ---------------
01   Jaso Martin     25-JUL-96 25-JUL-06   1234.56 Toronto    Programmer
     n
02   Alis Mathews    21-MAR-76 21-FEB-86   6661.78 Vancouver  Tester
     on
03   Jame Smith      12-DEC-78 15-MAR-90   6544.78 Vancouver  Tester
     s
04   Celi Rice       24-OCT-82 21-APR-99   2344.78 Vancouver  Manager
     a
05   Robe Black      15-JAN-84 08-AUG-98   2334.78 Vancouver  Tester
     rt
06   Lind Green      30-JUL-87 04-JAN-96   4322.78 New York   Tester
     a
07   Davi Larry      31-DEC-90 12-FEB-98   7897.78 New York   Manager
     d
08   Jame Cat        17-SEP-96 15-APR-02   1232.78 Vancouver  Tester
     s

8 rows selected.
SQL> select * from Employee
  2  /
ID   FIRS LAST_NAME  START_DAT END_DATE     SALARY CITY       DESCRIPTION
---- ---- ---------- --------- --------- --------- ---------- ---------------
01   Jaso Martin     25-JUL-96 25-JUL-06   1234.56 Toronto    Programmer
     n
02   Alis Mathews    21-MAR-76 21-FEB-86   6661.78 Vancouver  Tester
     on
03   Jame Smith      12-DEC-78 15-MAR-90   6544.78 Vancouver  Tester
     s
04   Celi Rice       24-OCT-82 21-APR-99   2344.78 Vancouver  Manager
     a
05   Robe Black      15-JAN-84 08-AUG-98   2334.78 Vancouver  Tester
     rt
06   Lind Green      30-JUL-87 04-JAN-96   4322.78 New York   Tester
     a
07   Davi Larry      31-DEC-90 12-FEB-98   7897.78 New York   Manager
     d
08   Jame Cat        17-SEP-96 15-APR-02   1232.78 Vancouver  Tester
     s

8 rows selected.
SQL>
SQL>
SQL> -- clean the table
SQL> drop table Employee
  2  /
Table dropped.
SQL>
SQL>


Numbers can also be output with leading zeros or dollar signs

SQL>
SQL>
SQL>
SQL> -- create demo table
SQL> create table Employee(
  2    ID                 VARCHAR2(4 BYTE)         NOT NULL,
  3    First_Name         VARCHAR2(10 BYTE),
  4    Last_Name          VARCHAR2(10 BYTE),
  5    Start_Date         DATE,
  6    End_Date           DATE,
  7    Salary             Number(8,2),
  8    City               VARCHAR2(10 BYTE),
  9    Description        VARCHAR2(15 BYTE)
 10  )
 11  /
Table created.
SQL>
SQL> -- prepare data
SQL> insert into Employee(ID,  First_Name, Last_Name, Start_Date,                     End_Date,
                  Salary,  City,       Description)
  2               values ("01","Jason",    "Martin",  to_date("19960725","YYYYMMDD"), to_date("20060
725","YYYYMMDD"), 1234.56, "Toronto",  "Programmer")
  3  /
1 row created.
SQL> insert into Employee(ID,  First_Name, Last_Name, Start_Date,                     End_Date,
                  Salary,  City,       Description)
  2                values("02","Alison",   "Mathews", to_date("19760321","YYYYMMDD"), to_date("19860
221","YYYYMMDD"), 6661.78, "Vancouver","Tester")
  3  /
1 row created.
SQL> insert into Employee(ID,  First_Name, Last_Name, Start_Date,                     End_Date,
                  Salary,  City,       Description)
  2                values("03","James",    "Smith",   to_date("19781212","YYYYMMDD"), to_date("19900
315","YYYYMMDD"), 6544.78, "Vancouver","Tester")
  3  /
1 row created.
SQL> insert into Employee(ID,  First_Name, Last_Name, Start_Date,                     End_Date,
                  Salary,  City,       Description)
  2                values("04","Celia",    "Rice",    to_date("19821024","YYYYMMDD"), to_date("19990
421","YYYYMMDD"), 2344.78, "Vancouver","Manager")
  3  /
1 row created.
SQL> insert into Employee(ID,  First_Name, Last_Name, Start_Date,                     End_Date,
                  Salary,  City,       Description)
  2                values("05","Robert",   "Black",   to_date("19840115","YYYYMMDD"), to_date("19980
808","YYYYMMDD"), .78, "Vancouver","Tester")
  3  /
1 row created.
SQL> insert into Employee(ID,  First_Name, Last_Name, Start_Date,                     End_Date,
                  Salary, City,        Description)
  2                values("06","Linda",    "Green",   to_date("19870730","YYYYMMDD"), to_date("19960
104","YYYYMMDD"), 4322.78,"New York",  "Tester")
  3  /
1 row created.
SQL> insert into Employee(ID,  First_Name, Last_Name, Start_Date,                     End_Date,
                  Salary, City,        Description)
  2                values("07","David",    "Larry",   to_date("19901231","YYYYMMDD"), to_date("19980
212","YYYYMMDD"), 7897.78,"New York",  "Manager")
  3  /
1 row created.
SQL> insert into Employee(ID,  First_Name, Last_Name, Start_Date,                     End_Date,
                  Salary, City,        Description)
  2                values("08","James",    "Cat",     to_date("19960917","YYYYMMDD"), to_date("20020
415","YYYYMMDD"), 1232.78,"Vancouver", "Tester")
  3  /
1 row created.
SQL>
SQL>
SQL>
SQL> -- display data in the table
SQL> select * from Employee
  2  /
ID   FIRST_NAME LAST_NAME  START_DAT END_DATE      SALARY CITY       DESCRIPTION
---- ---------- ---------- --------- --------- ---------- ---------- ---------------
01   Jason      Martin     25-JUL-96 25-JUL-06    1234.56 Toronto    Programmer
02   Alison     Mathews    21-MAR-76 21-FEB-86    6661.78 Vancouver  Tester
03   James      Smith      12-DEC-78 15-MAR-90    6544.78 Vancouver  Tester
04   Celia      Rice       24-OCT-82 21-APR-99    2344.78 Vancouver  Manager
05   Robert     Black      15-JAN-84 08-AUG-98        .78 Vancouver  Tester
06   Linda      Green      30-JUL-87 04-JAN-96    4322.78 New York   Tester
07   David      Larry      31-DEC-90 12-FEB-98    7897.78 New York   Manager
08   James      Cat        17-SEP-96 15-APR-02    1232.78 Vancouver  Tester
8 rows selected.
SQL>
SQL>
SQL>
SQL> COLUMN Salary FORMAT 990.99
SQL> /
ID   FIRST_NAME LAST_NAME  START_DAT END_DATE   SALARY CITY       DESCRIPTION
---- ---------- ---------- --------- --------- ------- ---------- ---------------
01   Jason      Martin     25-JUL-96 25-JUL-06 ####### Toronto    Programmer
02   Alison     Mathews    21-MAR-76 21-FEB-86 ####### Vancouver  Tester
03   James      Smith      12-DEC-78 15-MAR-90 ####### Vancouver  Tester
04   Celia      Rice       24-OCT-82 21-APR-99 ####### Vancouver  Manager
05   Robert     Black      15-JAN-84 08-AUG-98    0.78 Vancouver  Tester
06   Linda      Green      30-JUL-87 04-JAN-96 ####### New York   Tester
07   David      Larry      31-DEC-90 12-FEB-98 ####### New York   Manager
08   James      Cat        17-SEP-96 15-APR-02 ####### Vancouver  Tester
8 rows selected.
SQL> select salary from Employee
  2  /
 SALARY
-------
#######
#######
#######
#######
   0.78
#######
#######
#######
8 rows selected.
SQL>
SQL> clear columns;
columns cleared
SQL>
SQL>
SQL> -- clean the table
SQL> drop table Employee
  2  /
Table dropped.
SQL>


Reporting Tools in Oracle"s SQL*Plus: COLUMN

Change the way a column displays by using the COLUMN command

The COLUMN command has the following syntax:

COLUMN column-name FORMAT format-specification

where

column-name is the column heading you wish to format.

The format-specification uses a"s for text and 9"s for numbers, like this:

an - text format for a field width of n

9n - numeric format with no decimals for a field width of numbers of size n

29. 4. COLUMN 29. 4. 1. Reporting Tools in Oracle"s SQL*Plus: COLUMN 29. 4. 2. <A href="/Tutorial/Oracle/0580__SQL-PLUS-Session-Environment/FormattingColumns.htm">Formatting Columns</a> 29. 4. 3. <A href="/Tutorial/Oracle/0580__SQL-PLUS-Session-Environment/COLUMNformatinactionCOLUMNCityFORMATa6.htm">COLUMN format in action: COLUMN City FORMAT a6</a> 29. 4. 4. <A href="/Tutorial/Oracle/0580__SQL-PLUS-Session-Environment/ShortenthevarcharcolumnformatwithCOLUMNcommand.htm">Shorten the varchar column format with COLUMN command:</a> 29. 4. 5. <A href="/Tutorial/Oracle/0580__SQL-PLUS-Session-Environment/Foralphanumericcolumnsifthecolumnistooshortitwillbedisplayedonmultiplelines.htm">For alphanumeric columns, if the column is too short, it will be displayed on multiple lines.</a> 29. 4. 6. <A href="/Tutorial/Oracle/0580__SQL-PLUS-Session-Environment/FormatthenumbercolumnwithCOLUMNsalaryFORMAT99999999.htm">Format the number column with COLUMN salary FORMAT 99999999</a> 29. 4. 7. <A href="/Tutorial/Oracle/0580__SQL-PLUS-Session-Environment/Ifthecolumnformatistoosmallforanumbercolumnwillbeused.htm">If the column format is too small for a number column, "#" will be used</a> 29. 4. 8. <A href="/Tutorial/Oracle/0580__SQL-PLUS-Session-Environment/FORMATnumbercolumnas999999.htm">FORMAT number column as 999,999</a> 29. 4. 9. <A href="/Tutorial/Oracle/0580__SQL-PLUS-Session-Environment/Iftherearedecimalsorifcommasaredesiredusethe9999999.htm">If there are decimals or if commas are desired, use the "99999.99"</a> 29. 4. 10. <A href="/Tutorial/Oracle/0580__SQL-PLUS-Session-Environment/Numberscanalsobeoutputwithleadingzerosordollarsigns.htm">Numbers can also be output with leading zeros or dollar signs</a> 29. 4. 11. <A href="/Tutorial/Oracle/0580__SQL-PLUS-Session-Environment/Adddollarsignstotheoutputwith99099.htm">Add dollar signs to the output with "$990.99"</a> 29. 4. 12. <A href="/Tutorial/Oracle/0580__SQL-PLUS-Session-Environment/COLUMNSalaryFORMAT90999.htm">COLUMN Salary FORMAT 909.99</a> 29. 4. 13. <A href="/Tutorial/Oracle/0580__SQL-PLUS-Session-Environment/ToundoallcolumnformattingCLEARCOLUMNS.htm">To undo all column formatting: CLEAR COLUMNS</a> 29. 4. 14. <A href="/Tutorial/Oracle/0580__SQL-PLUS-Session-Environment/ColumnLIKEanotherColumn.htm">Column LIKE another Column</a> 29. 4. 15. <A href="/Tutorial/Oracle/0580__SQL-PLUS-Session-Environment/TwodigitsCOLUMNidFORMAT99.htm">Two digits: COLUMN id FORMAT 99</a> 29. 4. 16. <A href="/Tutorial/Oracle/0580__SQL-PLUS-Session-Environment/COLUMNfirstnameHEADINGFIRSTNAMEFORMATA13WORDWRAPPED.htm">COLUMN first_name HEADING FIRST_NAME FORMAT A13 WORD_WRAPPED</a> 29. 4. 17. <A href="/Tutorial/Oracle/0580__SQL-PLUS-Session-Environment/COLUMNfirstnameFORMATA13WORDWRAPPED.htm">COLUMN first_name FORMAT A13 WORD_WRAPPED</a> 29. 4. 18. <A href="/Tutorial/Oracle/0580__SQL-PLUS-Session-Environment/COLUMNfirstnameFORMATA10WORDWRAPHEADINGNameJUSTIFYCENTER.htm">COLUMN first_name FORMAT A10 WORD_WRAP HEADING "Name" JUSTIFY CENTER</a> 29. 4. 19. <A href="/Tutorial/Oracle/0580__SQL-PLUS-Session-Environment/COLUMNsalaryFORMAT9999HEADINGSalaryJUSTIFYRIGHT.htm">COLUMN salary FORMAT $99.99 HEADING "Salary" JUSTIFY RIGHT</a> 29. 4. 20. <A href="/Tutorial/Oracle/0580__SQL-PLUS-Session-Environment/Copycolumnformatwithcollike.htm">Copy column format with "col ... like"</a> 29. 4. 21. <A href="/Tutorial/Oracle/0580__SQL-PLUS-Session-Environment/formatintervaltypecolumn.htm">format interval type column</a> 29. 4. 22. <A href="/Tutorial/Oracle/0580__SQL-PLUS-Session-Environment/SETstringtodisplaywhenvalueisNULL.htm">SET string to display when value is NULL</a>

SET string to display when value is NULL

SQL>
SQL> CREATE TABLE emp (
  2    emp_id               NUMBER,
  3    ename             VARCHAR2(40),
  4    hire_date        DATE DEFAULT sysdate,
  5    end_date DATE,
  6    rate     NUMBER(5,2),
  7    CONSTRAINT emp_pk    PRIMARY KEY (emp_id)
  8  );
Table created.
SQL> INSERT INTO emp(emp_id, ename, hire_date,end_date, rate)VALUES (101, "Mary", to_date("15-Nov-1961","dd-mon-yyyy"),null,169);
1 row created.
SQL> INSERT INTO emp(emp_id, ename, hire_date,end_date, rate)VALUES (102, "Tom", to_date("16-Sep-1964","dd-mon-yyyy"),to_date("5-May-2004","dd-mon-yyyy"),135);
1 row created.
SQL> INSERT INTO emp(emp_id, ename, hire_date,end_date, rate)VALUES (104, "Peter", to_date("29-Dec-1987","dd-mon-yyyy"),to_date("1-Apr-2004","dd-mon-yyyy"),99);
1 row created.
SQL> INSERT INTO emp(emp_id, ename, hire_date,end_date, rate)VALUES (105, "Mike", to_date("15-Jun-2004","dd-mon-yyyy"),null,121);
1 row created.
SQL> INSERT INTO emp(emp_id, ename, hire_date,end_date, rate)VALUES (107, "Less", to_date("2-Jan-2004","dd-mon-yyyy"),null,45);
1 row created.
SQL> INSERT INTO emp(emp_id, ename, hire_date,end_date, rate)VALUES (108, "Park", to_date("1-Mar-1994","dd-mon-yyyy"),to_date("15-Nov-2004","dd-mon-yyyy"),220);
1 row created.
SQL> INSERT INTO emp(emp_id, ename, hire_date,end_date, rate)VALUES (110, "Ink", to_date("4-Apr-2004","dd-mon-yyyy"),to_date("30-Sep-2004","dd-mon-yyyy"),84);
1 row created.
SQL> INSERT INTO emp(emp_id, ename, hire_date,end_date, rate)VALUES (111, "Tike", to_date("23-Aug-1976","dd-mon-yyyy"),null,100);
1 row created.
SQL> INSERT INTO emp(emp_id, ename, hire_date,end_date, rate)VALUES (112, "Inn", to_date("15-Nov-1961","dd-mon-yyyy"),to_date("4-Apr-2004","dd-mon-yyyy"),70);
1 row created.
SQL> INSERT INTO emp(emp_id, ename, hire_date,end_date, rate)VALUES (113, "Kate", to_date("3-Mar-2004","dd-mon-yyyy"),to_date("31-Oct-2004","dd-mon-yyyy"),300);
1 row created.
SQL>
SQL>
SQL> SET ECHO ON
SQL> COLUMN ename FORMAT A18
SQL> INSERT INTO emp (emp_id, ename)
  2     VALUES (116, "Roxolana Lisovsky");
1 row created.
SQL>
SQL> SET NULL ***NULL***
SQL>
SQL> SELECT emp_id, ename,
  2         hire_date, end_date
  3  FROM emp
  4  WHERE emp_id = 116;
       116 Roxolana Lisovsky  26-OCT-09
***NULL**
*

1 row selected.
SQL>
SQL> SET NULL ""
SQL>
SQL> drop table emp;
Table dropped.


Shorten the varchar column format with COLUMN command:

SQL>
SQL>
SQL> -- create demo table
SQL> create table Employee(
  2    ID                 VARCHAR2(4 BYTE)         NOT NULL,
  3    First_Name         VARCHAR2(10 BYTE),
  4    Last_Name          VARCHAR2(10 BYTE),
  5    Start_Date         DATE,
  6    End_Date           DATE,
  7    Salary             Number(8,2),
  8    City               VARCHAR2(10 BYTE),
  9    Description        VARCHAR2(15 BYTE)
 10  )
 11  /
Table created.
SQL>
SQL> -- prepare data
SQL> insert into Employee(ID,  First_Name, Last_Name, Start_Date,                     End_Date,
                  Salary,  City,       Description)
  2               values ("01","Jason",    "Martin",  to_date("19960725","YYYYMMDD"), to_date("20060
725","YYYYMMDD"), 1234.56, "Toronto",  "Programmer")
  3  /
1 row created.
SQL> insert into Employee(ID,  First_Name, Last_Name, Start_Date,                     End_Date,
                  Salary,  City,       Description)
  2                values("02","Alison",   "Mathews", to_date("19760321","YYYYMMDD"), to_date("19860
221","YYYYMMDD"), 6661.78, "Vancouver","Tester")
  3  /
1 row created.
SQL> insert into Employee(ID,  First_Name, Last_Name, Start_Date,                     End_Date,
                  Salary,  City,       Description)
  2                values("03","James",    "Smith",   to_date("19781212","YYYYMMDD"), to_date("19900
315","YYYYMMDD"), 6544.78, "Vancouver","Tester")
  3  /
1 row created.
SQL> insert into Employee(ID,  First_Name, Last_Name, Start_Date,                     End_Date,
                  Salary,  City,       Description)
  2                values("04","Celia",    "Rice",    to_date("19821024","YYYYMMDD"), to_date("19990
421","YYYYMMDD"), 2344.78, "Vancouver","Manager")
  3  /
1 row created.
SQL> insert into Employee(ID,  First_Name, Last_Name, Start_Date,                     End_Date,
                  Salary,  City,       Description)
  2                values("05","Robert",   "Black",   to_date("19840115","YYYYMMDD"), to_date("19980
808","YYYYMMDD"), 2334.78, "Vancouver","Tester")
  3  /
1 row created.
SQL> insert into Employee(ID,  First_Name, Last_Name, Start_Date,                     End_Date,
                  Salary, City,        Description)
  2                values("06","Linda",    "Green",   to_date("19870730","YYYYMMDD"), to_date("19960
104","YYYYMMDD"), 4322.78,"New York",  "Tester")
  3  /
1 row created.
SQL> insert into Employee(ID,  First_Name, Last_Name, Start_Date,                     End_Date,
                  Salary, City,        Description)
  2                values("07","David",    "Larry",   to_date("19901231","YYYYMMDD"), to_date("19980
212","YYYYMMDD"), 7897.78,"New York",  "Manager")
  3  /
1 row created.
SQL> insert into Employee(ID,  First_Name, Last_Name, Start_Date,                     End_Date,
                  Salary, City,        Description)
  2                values("08","James",    "Cat",     to_date("19960917","YYYYMMDD"), to_date("20020
415","YYYYMMDD"), 1232.78,"Vancouver", "Tester")
  3  /
1 row created.
SQL>
SQL>
SQL>
SQL> -- display data in the table
SQL> select * from Employee
  2  /
ID   FIRST_NAME  LAST_NAME  START_DAT END_DATE      SALARY CITY       DESCRIPTION
---- ----------- ---------- --------- --------- ---------- ---------- ---------------
01   Jason       Martin     25-JUL-96 25-JUL-06    1234.56 Toronto    Programmer
02   Alison      Mathews    21-MAR-76 21-FEB-86    6661.78 Vancouver  Tester
03   James       Smith      12-DEC-78 15-MAR-90    6544.78 Vancouver  Tester
04   Celia       Rice       24-OCT-82 21-APR-99    2344.78 Vancouver  Manager
05   Robert      Black      15-JAN-84 08-AUG-98    2334.78 Vancouver  Tester
06   Linda       Green      30-JUL-87 04-JAN-96    4322.78 New York   Tester
07   David       Larry      31-DEC-90 12-FEB-98    7897.78 New York   Manager
08   James       Cat        17-SEP-96 15-APR-02    1232.78 Vancouver  Tester
8 rows selected.
SQL>
SQL> COLUMN First_Name FORMAT a11
SQL> /
ID   FIRST_NAME  LAST_NAME  START_DAT END_DATE      SALARY CITY       DESCRIPTION
---- ----------- ---------- --------- --------- ---------- ---------- ---------------
01   Jason       Martin     25-JUL-96 25-JUL-06    1234.56 Toronto    Programmer
02   Alison      Mathews    21-MAR-76 21-FEB-86    6661.78 Vancouver  Tester
03   James       Smith      12-DEC-78 15-MAR-90    6544.78 Vancouver  Tester
04   Celia       Rice       24-OCT-82 21-APR-99    2344.78 Vancouver  Manager
05   Robert      Black      15-JAN-84 08-AUG-98    2334.78 Vancouver  Tester
06   Linda       Green      30-JUL-87 04-JAN-96    4322.78 New York   Tester
07   David       Larry      31-DEC-90 12-FEB-98    7897.78 New York   Manager
08   James       Cat        17-SEP-96 15-APR-02    1232.78 Vancouver  Tester
8 rows selected.
SQL>
SQL> select * from Employee
  2  /
ID   FIRST_NAME  LAST_NAME  START_DAT END_DATE      SALARY CITY       DESCRIPTION
---- ----------- ---------- --------- --------- ---------- ---------- ---------------
01   Jason       Martin     25-JUL-96 25-JUL-06    1234.56 Toronto    Programmer
02   Alison      Mathews    21-MAR-76 21-FEB-86    6661.78 Vancouver  Tester
03   James       Smith      12-DEC-78 15-MAR-90    6544.78 Vancouver  Tester
04   Celia       Rice       24-OCT-82 21-APR-99    2344.78 Vancouver  Manager
05   Robert      Black      15-JAN-84 08-AUG-98    2334.78 Vancouver  Tester
06   Linda       Green      30-JUL-87 04-JAN-96    4322.78 New York   Tester
07   David       Larry      31-DEC-90 12-FEB-98    7897.78 New York   Manager
08   James       Cat        17-SEP-96 15-APR-02    1232.78 Vancouver  Tester
8 rows selected.
SQL>
SQL> -- clean the table
SQL> drop table Employee
  2  /
Table dropped.
SQL>
SQL>


To undo all column formatting: CLEAR COLUMNS

SQL>
SQL>
SQL> -- create demo table
SQL> create table Employee(
  2    ID                 VARCHAR2(4 BYTE)         NOT NULL,
  3    First_Name         VARCHAR2(10 BYTE),
  4    Last_Name          VARCHAR2(10 BYTE),
  5    Start_Date         DATE,
  6    End_Date           DATE,
  7    Salary             Number(8,2),
  8    City               VARCHAR2(10 BYTE),
  9    Description        VARCHAR2(15 BYTE)
 10  )
 11  /
Table created.
SQL>
SQL> -- prepare data
SQL> insert into Employee(ID,  First_Name, Last_Name, Start_Date,                     End_Date,
                  Salary,  City,       Description)
  2               values ("01","Jason",    "Martin",  to_date("19960725","YYYYMMDD"), to_date("20060
725","YYYYMMDD"), 1234.56, "Toronto",  "Programmer")
  3  /
1 row created.
SQL> insert into Employee(ID,  First_Name, Last_Name, Start_Date,                     End_Date,
                  Salary,  City,       Description)
  2                values("02","Alison",   "Mathews", to_date("19760321","YYYYMMDD"), to_date("19860
221","YYYYMMDD"), 6661.78, "Vancouver","Tester")
  3  /
1 row created.
SQL> insert into Employee(ID,  First_Name, Last_Name, Start_Date,                     End_Date,
                  Salary,  City,       Description)
  2                values("03","James",    "Smith",   to_date("19781212","YYYYMMDD"), to_date("19900
315","YYYYMMDD"), 6544.78, "Vancouver","Tester")
  3  /
1 row created.
SQL> insert into Employee(ID,  First_Name, Last_Name, Start_Date,                     End_Date,
                  Salary,  City,       Description)
  2                values("04","Celia",    "Rice",    to_date("19821024","YYYYMMDD"), to_date("19990
421","YYYYMMDD"), 2344.78, "Vancouver","Manager")
  3  /
1 row created.
SQL> insert into Employee(ID,  First_Name, Last_Name, Start_Date,                     End_Date,
                  Salary,  City,       Description)
  2                values("05","Robert",   "Black",   to_date("19840115","YYYYMMDD"), to_date("19980
808","YYYYMMDD"), 2334.78, "Vancouver","Tester")
  3  /
1 row created.
SQL> insert into Employee(ID,  First_Name, Last_Name, Start_Date,                     End_Date,
                  Salary, City,        Description)
  2                values("06","Linda",    "Green",   to_date("19870730","YYYYMMDD"), to_date("19960
104","YYYYMMDD"), 4322.78,"New York",  "Tester")
  3  /
1 row created.
SQL> insert into Employee(ID,  First_Name, Last_Name, Start_Date,                     End_Date,
                  Salary, City,        Description)
  2                values("07","David",    "Larry",   to_date("19901231","YYYYMMDD"), to_date("19980
212","YYYYMMDD"), 7897.78,"New York",  "Manager")
  3  /
1 row created.
SQL> insert into Employee(ID,  First_Name, Last_Name, Start_Date,                     End_Date,
                  Salary, City,        Description)
  2                values("08","James",    "Cat",     to_date("19960917","YYYYMMDD"), to_date("20020
415","YYYYMMDD"), 1232.78,"Vancouver", "Tester")
  3  /
1 row created.
SQL>
SQL>
SQL>
SQL> -- display data in the table
SQL> select * from Employee
  2  /
ID   FIRST_NAME LAST_NAME  START_DAT END_DATE      SALARY CITY       DESCRIPTION
---- ---------- ---------- --------- --------- ---------- ---------- ---------------
01   Jason      Martin     25-JUL-96 25-JUL-06    1234.56 Toronto    Programmer
02   Alison     Mathews    21-MAR-76 21-FEB-86    6661.78 Vancouver  Tester
03   James      Smith      12-DEC-78 15-MAR-90    6544.78 Vancouver  Tester
04   Celia      Rice       24-OCT-82 21-APR-99    2344.78 Vancouver  Manager
05   Robert     Black      15-JAN-84 08-AUG-98    2334.78 Vancouver  Tester
06   Linda      Green      30-JUL-87 04-JAN-96    4322.78 New York   Tester
07   David      Larry      31-DEC-90 12-FEB-98    7897.78 New York   Manager
08   James      Cat        17-SEP-96 15-APR-02    1232.78 Vancouver  Tester
8 rows selected.
SQL>
SQL>
SQL>
SQL> COLUMN Salary FORMAT $990.99
SQL> /
ID   FIRST_NAME LAST_NAME  START_DAT END_DATE    SALARY CITY       DESCRIPTION
---- ---------- ---------- --------- --------- -------- ---------- ---------------
01   Jason      Martin     25-JUL-96 25-JUL-06 ######## Toronto    Programmer
02   Alison     Mathews    21-MAR-76 21-FEB-86 ######## Vancouver  Tester
03   James      Smith      12-DEC-78 15-MAR-90 ######## Vancouver  Tester
04   Celia      Rice       24-OCT-82 21-APR-99 ######## Vancouver  Manager
05   Robert     Black      15-JAN-84 08-AUG-98 ######## Vancouver  Tester
06   Linda      Green      30-JUL-87 04-JAN-96 ######## New York   Tester
07   David      Larry      31-DEC-90 12-FEB-98 ######## New York   Manager
08   James      Cat        17-SEP-96 15-APR-02 ######## Vancouver  Tester
8 rows selected.
SQL> Select salary from Employee
  2  /
  SALARY
--------
########
########
########
########
########
########
########
########
8 rows selected.
SQL>
SQL> CLEAR COLUMNS
columns cleared
SQL> /
    SALARY
----------
   1234.56
   6661.78
   6544.78
   2344.78
   2334.78
   4322.78
   7897.78
   1232.78
8 rows selected.
SQL> Select salary from Employee
  2  /
    SALARY
----------
   1234.56
   6661.78
   6544.78
   2344.78
   2334.78
   4322.78
   7897.78
   1232.78
8 rows selected.
SQL>
SQL>
SQL>
SQL>
SQL>
SQL> -- clean the table
SQL> drop table Employee
  2  /
Table dropped.


Two digits: COLUMN id FORMAT 99

SQL>
SQL>
SQL> -- create demo table
SQL> create table Employee(
  2    ID                 VARCHAR2(4 BYTE)         NOT NULL primary key,
  3    First_Name         VARCHAR2(10 BYTE),
  4    Last_Name          VARCHAR2(10 BYTE),
  5    Start_Date         DATE,
  6    End_Date           DATE,
  7    Salary             Number(8,2),
  8    City               VARCHAR2(10 BYTE),
  9    Description        VARCHAR2(15 BYTE)
 10  )
 11  /
Table created.
SQL>
SQL> -- prepare data
SQL> insert into Employee(ID,  First_Name, Last_Name, Start_Date,                     End_Date,                       Salary,  City,       Description)
  2               values ("01","Jason",    "Martin",  to_date("19960725","YYYYMMDD"), to_date("20060725","YYYYMMDD"), 1234.56, "Toronto",  "Programmer")
  3  /
1 row created.
SQL> insert into Employee(ID,  First_Name, Last_Name, Start_Date,                     End_Date,                       Salary,  City,       Description)
  2                values("02","Alison",   "Mathews", to_date("19760321","YYYYMMDD"), to_date("19860221","YYYYMMDD"), 6661.78, "Vancouver","Tester")
  3  /
1 row created.
SQL> insert into Employee(ID,  First_Name, Last_Name, Start_Date,                     End_Date,                       Salary,  City,       Description)
  2                values("03","James",    "Smith",   to_date("19781212","YYYYMMDD"), to_date("19900315","YYYYMMDD"), 6544.78, "Vancouver","Tester")
  3  /
1 row created.
SQL> insert into Employee(ID,  First_Name, Last_Name, Start_Date,                     End_Date,                       Salary,  City,       Description)
  2                values("04","Celia",    "Rice",    to_date("19821024","YYYYMMDD"), to_date("19990421","YYYYMMDD"), 2344.78, "Vancouver","Manager")
  3  /
1 row created.
SQL> insert into Employee(ID,  First_Name, Last_Name, Start_Date,                     End_Date,                       Salary,  City,       Description)
  2                values("05","Robert",   "Black",   to_date("19840115","YYYYMMDD"), to_date("19980808","YYYYMMDD"), 2334.78, "Vancouver","Tester")
  3  /
1 row created.
SQL> insert into Employee(ID,  First_Name, Last_Name, Start_Date,                     End_Date,                       Salary, City,        Description)
  2                values("06","Linda",    "Green",   to_date("19870730","YYYYMMDD"), to_date("19960104","YYYYMMDD"), 4322.78,"New York",  "Tester")
  3  /
1 row created.
SQL> insert into Employee(ID,  First_Name, Last_Name, Start_Date,                     End_Date,                       Salary, City,        Description)
  2                values("07","David",    "Larry",   to_date("19901231","YYYYMMDD"), to_date("19980212","YYYYMMDD"), 7897.78,"New York",  "Manager")
  3  /
1 row created.
SQL> insert into Employee(ID,  First_Name, Last_Name, Start_Date,                     End_Date,                       Salary, City,        Description)
  2                values("08","James",    "Cat",     to_date("19960917","YYYYMMDD"), to_date("20020415","YYYYMMDD"), 1232.78,"Vancouver", "Tester")
  3  /
1 row created.
SQL>
SQL>
SQL>
SQL> -- display data in the table
SQL> select * from Employee
  2  /
ID   FIRST_NAME           LAST_NAME            START_DAT END_DATE      SALARY CITY       DESCRIPTION
---- -------------------- -------------------- --------- --------- ---------- ---------- ---------------
01   Jason                Martin               25-JUL-96 25-JUL-06    1234.56 Toronto    Programmer
02   Alison               Mathews              21-MAR-76 21-FEB-86    6661.78 Vancouver  Tester
03   James                Smith                12-DEC-78 15-MAR-90    6544.78 Vancouver  Tester
04   Celia                Rice                 24-OCT-82 21-APR-99    2344.78 Vancouver  Manager
05   Robert               Black                15-JAN-84 08-AUG-98    2334.78 Vancouver  Tester
06   Linda                Green                30-JUL-87 04-JAN-96    4322.78 New York   Tester
07   David                Larry                31-DEC-90 12-FEB-98    7897.78 New York   Manager
08   James                Cat                  17-SEP-96 15-APR-02    1232.78 Vancouver  Tester
8 rows selected.
SQL>
SQL>
SQL>
SQL> COLUMN id FORMAT 99
SQL> /
ID   FIRST_NAME           LAST_NAME            START_DAT END_DATE      SALARY CITY       DESCRIPTION
---- -------------------- -------------------- --------- --------- ---------- ---------- ---------------
01   Jason                Martin               25-JUL-96 25-JUL-06    1234.56 Toronto    Programmer
02   Alison               Mathews              21-MAR-76 21-FEB-86    6661.78 Vancouver  Tester
03   James                Smith                12-DEC-78 15-MAR-90    6544.78 Vancouver  Tester
04   Celia                Rice                 24-OCT-82 21-APR-99    2344.78 Vancouver  Manager
05   Robert               Black                15-JAN-84 08-AUG-98    2334.78 Vancouver  Tester
06   Linda                Green                30-JUL-87 04-JAN-96    4322.78 New York   Tester
07   David                Larry                31-DEC-90 12-FEB-98    7897.78 New York   Manager
08   James                Cat                  17-SEP-96 15-APR-02    1232.78 Vancouver  Tester
8 rows selected.
SQL>
SQL>
SQL> select * from Employee
  2  /
ID   FIRST_NAME           LAST_NAME            START_DAT END_DATE      SALARY CITY       DESCRIPTION
---- -------------------- -------------------- --------- --------- ---------- ---------- ---------------
01   Jason                Martin               25-JUL-96 25-JUL-06    1234.56 Toronto    Programmer
02   Alison               Mathews              21-MAR-76 21-FEB-86    6661.78 Vancouver  Tester
03   James                Smith                12-DEC-78 15-MAR-90    6544.78 Vancouver  Tester
04   Celia                Rice                 24-OCT-82 21-APR-99    2344.78 Vancouver  Manager
05   Robert               Black                15-JAN-84 08-AUG-98    2334.78 Vancouver  Tester
06   Linda                Green                30-JUL-87 04-JAN-96    4322.78 New York   Tester
07   David                Larry                31-DEC-90 12-FEB-98    7897.78 New York   Manager
08   James                Cat                  17-SEP-96 15-APR-02    1232.78 Vancouver  Tester
8 rows selected.
SQL>
SQL>
SQL>
SQL>
SQL> -- clean the table
SQL> drop table Employee
  2  /
Table dropped.