Oracle PL/SQL Tutorial/SQL PLUS Session Environment/ACCEPT

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Версия от 10:04, 26 мая 2010; Admin (обсуждение | вклад) (1 версия)
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ACCEPT

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> SET VERIFY OFF
SQL> SET ECHO OFF
SQL>
SQL> ACCEPT v_earliest_date PROMPT "Earliest date you would like to see? (dd-mmm-yy): "
Earliest date you would like to see? (dd-mmm-yy): ACCEPT v_latest_date PROMPT "Thank you. Latest date you would like to see? (dd-mmm-yy): "
SQL> SELECT *
  2  FROM   employee
  3  WHERE  start_date BETWEEN "&v_earliest_date" AND "&v_latest_date";
Enter value for v_latest_date:
WHERE  start_date BETWEEN "ACCEPT v_latest_date PROMPT "Thank you. Latest date you would like to see? (dd-mmm-yy): "" AND ""

SQL> SET VERIFY ON
SQL> SET ECHO ON
SQL>
SQL>
SQL> -- clean the table
SQL> drop table Employee
  2  /
Table dropped.
SQL>
SQL>
SQL>
SQL>


Accept input and pass into a query

SQL> set termout on
SQL>
SQL> ACCEPT continue_flag CHAR PROMPT "Do you wish to DROP the tables first (Y/N)?"
Do you wish to DROP the tables first (Y/N)?
SQL> define flag1 = "n"
SQL> SET TERMOUT OFF
SQL> COLUMN continue_flag NEW_VALUE continue_flag
SQL> SELECT LOWER("&continue_flag") continue_flag FROM dual;
old   1: SELECT LOWER("&continue_flag") continue_flag FROM dual
new   1: SELECT LOWER("") continue_flag FROM dual

C
-

1 row selected.
SQL> SET TERMOUT ON
SQL>
SQL> SET SERVEROUTPUT ON
SQL> PROMPT
SQL> BEGIN
  2    IF "&flag1" = "n" THEN
  3      DBMS_OUTPUT.PUT_LINE("You must answer either Y or N.");
  4      DBMS_OUTPUT.PUT_LINE("Please rerun the command file and answer correctly.");
  5    END IF;
  6  END;
  7  /
old   2:   IF "&flag1" = "n" THEN
new   2:   IF "n" = "n" THEN
You must answer either Y or N.
Please rerun the command file and answer correctly.
PL/SQL procedure successfully completed.
SQL>
SQL> --Let the calling script know that we were successful.
SQL> define flag2 = "Y"
SQL>
SQL>


accept x prompt "Enter date[yyyy-mm-dd]: "

SQL>
SQL>
SQL> accept x prompt "Enter date[yyyy-mm-dd]: "
Enter date[yyyy-mm-dd]:
SQL> select date "&x" as input_date
  2  ,      to_char(date "&x", "ww") as ww
  3  ,      to_char(date "&x", "iw") as iw
  4  from   dual;
old   1: select date "&x" as input_date
new   1: select date "" as input_date
old   2: ,      to_char(date "&x", "ww") as ww
new   2: ,      to_char(date "", "ww") as ww
old   3: ,      to_char(date "&x", "iw") as iw
new   3: ,      to_char(date "", "iw") as iw
select date "" as input_date
            *
ERROR at line 1:
ORA-01841: (full) year must be between -4713 and +9999, and not be 0

SQL>
SQL> undefine x
SQL>