Setting the Default Date Format : Date Default Format « Date Timezone « Oracle PL / SQL






Setting the Default Date Format



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_DATE        END_DATE              SALARY CITY       DESCRIPTION
---- ---------- ---------- ----------------- ----------------- ---------- ---------- ---------------
01   Jason      Martin     JULY     -25-1996 JULY     -25-2006    1234.56 Toronto    Programmer
02   Alison     Mathews    MARCH    -21-1976 FEBRUARY -21-1986    6661.78 Vancouver  Tester
03   James      Smith      DECEMBER -12-1978 MARCH    -15-1990    6544.78 Vancouver  Tester
04   Celia      Rice       OCTOBER  -24-1982 APRIL    -21-1999    2344.78 Vancouver  Manager
05   Robert     Black      JANUARY  -15-1984 AUGUST   -08-1998    2334.78 Vancouver  Tester
06   Linda      Green      JULY     -30-1987 JANUARY  -04-1996    4322.78 New York   Tester
07   David      Larry      DECEMBER -31-1990 FEBRUARY -12-1998    7897.78 New York   Manager
08   James      Cat        SEPTEMBER-17-1996 APRIL    -15-2002    1232.78 Vancouver  Tester

8 rows selected.

SQL>
SQL>
SQL>
SQL> --Setting the Default Date Format
SQL>
SQL> --The default date format is specified in the NLS_DATE_FORMAT database parameter.
SQL>
SQL>
SQL> --ALTER SESSION statement sets NLS_DATE_FORMAT to MONTHDDYYYY using SQL*Plus:
SQL>
SQL> ALTER SESSION SET NLS_DATE_FORMAT = 'MONTH-DD-YYYY';

Session altered.

SQL>
SQL> select * from employee;

ID   FIRST_NAME LAST_NAME  START_DATE        END_DATE              SALARY CITY       DESCRIPTION
---- ---------- ---------- ----------------- ----------------- ---------- ---------- ---------------
01   Jason      Martin     JULY     -25-1996 JULY     -25-2006    1234.56 Toronto    Programmer
02   Alison     Mathews    MARCH    -21-1976 FEBRUARY -21-1986    6661.78 Vancouver  Tester
03   James      Smith      DECEMBER -12-1978 MARCH    -15-1990    6544.78 Vancouver  Tester
04   Celia      Rice       OCTOBER  -24-1982 APRIL    -21-1999    2344.78 Vancouver  Manager
05   Robert     Black      JANUARY  -15-1984 AUGUST   -08-1998    2334.78 Vancouver  Tester
06   Linda      Green      JULY     -30-1987 JANUARY  -04-1996    4322.78 New York   Tester
07   David      Larry      DECEMBER -31-1990 FEBRUARY -12-1998    7897.78 New York   Manager
08   James      Cat        SEPTEMBER-17-1996 APRIL    -15-2002    1232.78 Vancouver  Tester

8 rows selected.

SQL>
SQL>
SQL> ALTER SESSION SET NLS_DATE_FORMAT = 'YYYY-MON-DD';

Session altered.

SQL>
SQL> select * from employee;

ID   FIRST_NAME LAST_NAME  START_DATE  END_DATE        SALARY CITY       DESCRIPTION
---- ---------- ---------- ----------- ----------- ---------- ---------- ---------------
01   Jason      Martin     1996-JUL-25 2006-JUL-25    1234.56 Toronto    Programmer
02   Alison     Mathews    1976-MAR-21 1986-FEB-21    6661.78 Vancouver  Tester
03   James      Smith      1978-DEC-12 1990-MAR-15    6544.78 Vancouver  Tester
04   Celia      Rice       1982-OCT-24 1999-APR-21    2344.78 Vancouver  Manager
05   Robert     Black      1984-JAN-15 1998-AUG-08    2334.78 Vancouver  Tester
06   Linda      Green      1987-JUL-30 1996-JAN-04    4322.78 New York   Tester
07   David      Larry      1990-DEC-31 1998-FEB-12    7897.78 New York   Manager
08   James      Cat        1996-SEP-17 2002-APR-15    1232.78 Vancouver  Tester

8 rows selected.

SQL>
SQL> -- clean the table
SQL> drop table Employee
  2  /

Table dropped.

SQL>
SQL>
           
       








Related examples in the same category

1.Insert date value along with the default date format
2.Proper use of default format mask
3.Default output of SYSDATE
4.Get NLS date format: V$NLS_Parameters
5.Simple Examples of Storing and Retrieving Dates
6.Use the DATE keyword to supply a date literal to the database