Oracle PL/SQL/Char Functions/INITCAP

INITCAP a sentence

 
SQL> SELECT INITCAP("this TEXT hAd UNpredictABLE caSE") FROM DUAL;
INITCAP("THISTEXTHADUNPREDICTABL
--------------------------------
This Text Had Unpredictable Case
SQL>

INITCAP: capital the first letter in a word

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> select INITCAP(First_Name) from Employee;
INITCAP(FI
----------
Jason
Alison
James
Celia
Robert
Linda
David
James
8 rows selected.
SQL>
SQL>
SQL> -- clean the table
SQL> drop table Employee
  2  /
Table dropped.
SQL>
SQL>

Initcap: changes the first (initial) letter of a word (string) or series of words into uppercase

SQL> -- Initcap: changes the first (initial) letter of a word (string) or series of words into uppercase.
SQL>
SQL> SELECT INITCAP("capitals") FROM dual;
INITCAP(
--------
Capitals

INITCAP() returns the character string passed into it with the first letter of each word capitalized

 
SQL>
Syntax: INITCAP(<character_string>)
SQL>
SQL> SELECT INITCAP("hello world") "HELLO"
  2  FROM dual;
HELLO
-----------
Hello World
SQL>

select initcap( table_name ) from user_tables

 
SQL>
SQL> select initcap( table_name )
  2  from user_tables
  3  where rownum < 50;
INITCAP(TABLE_NAME)
------------------------------
Mytable_Session
Done
Emp_Changes
Aq$_Emp_Changes_S
Aq$_Emp_Changes_T
Aq$_Emp_Changes_H
Compile_Schema_Tmp
Temp_Emp
Upper_Ename
Sys_Iot_Over_16251
Aq$_Emp_Changes_G
Aq$_Emp_Changes_I
Dept_And_Emp
Emp_Reg
Sess_Event
Sql_Area_Tmp
16 rows selected.
SQL>
SQL> --

select initcap("THESE WORDS will be INITcapped")

 
SQL>
SQL> select initcap("THESE WORDS will be INITcapped")
  2  from dual;
INITCAP("THESEWORDSWILLBEINITC
------------------------------
These Words Will Be Initcapped
1 row selected.
SQL>
SQL> --

Simple demo for INITAP: sets the first character in each word to uppercase and the rest to lowercase

SQL>
SQL> SELECT INITCAP("YOU TODAY") AS INITCAP FROM Dual;
INITCAP
---------
You Today
SQL>