Use DATE type column : Date « Data Type « Oracle PL / SQL






  1. Oracle PL / SQL
  2. Data Type
  3. Date

Use DATE type column

     
SQL>
SQL> create table MyTable (
  2  event_name    varchar2(100),
  3  event_date    date);

Table created.

SQL>
SQL> insert into MyTable ( event_name, event_date ) values ( 'Oracle', TO_DATE( '2-DEC-2001', 'DD-MON-YYYY' ) );

1 row created.

SQL>
SQL> insert into MyTable ( event_name, event_date ) values ( 'Sample code', SYSDATE );

1 row created.

SQL>
SQL> column event_name format a40
SQL>
SQL> select * from MyTable;

EVENT_NAME                               EVENT_DATE
---------------------------------------- ------------------
Oracle                                   02-DEC-01
Sample code                              10-JUN-08

SQL> insert into MyTable (event_name, event_date) values ('World', TO_DATE( '2-DEC-2001', 'DD-MON-YYYY' ) );

1 row created.

SQL> insert into MyTable ( event_name, event_date ) values ( 'code', SYSDATE );

1 row created.

SQL>
SQL> show parameters nls_date_format

NAME                                 TYPE        VALUE
------------------------------------ ----------- ------------------------------
nls_date_format                      string
SQL>
SQL> insert into MyTable ( event_name, event_date ) values ( '9i', DATE '2001-10-11' );

1 row created.

SQL>
SQL> select * from MyTable;

EVENT_NAME                               EVENT_DATE
---------------------------------------- ------------------
Oracle                                   02-DEC-01
Sample code                              10-JUN-08
World                                    02-DEC-01
code                                     10-JUN-08
9i                                       11-OCT-01

SQL>
SQL> drop table MyTable;

Table dropped.

SQL>








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2.Date data types
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4.Use SYSDATE in insert statement
5.Initialize value with date functions
6.Set date value to SYSDATE
7.check date value range
8.Insert statement converts text value to date type value
9.Are two dates equal
10.Use comparison operator with date type value
11.Compare date value after to_char() and trim()
12.Compare date value with sysdate or null value
13.Use to_char to format date
14.use to_char more than once to create long date format
15.Declare date type variable and set the value at the same time
16.Differences Between Dates
17.Extract year, month, day from a date
18.Insert sysdate value to date type column
19.Use if statement to compare two date type variable
20.Assign system date to date type variable
21.Date math
22.Date type column
23.Date value calculation in to_char function
24.Date variable
25.Date/Time literals
26.New ANSI DATE literal.
27.Store hour:minute information to date type variable
28.Assign date value as string to date type variable
29.Convert the character string back to date format