Friday, January 11, 2013

Extract Function


In Oracle/PLSQL, the extract function extracts a value from a date or interval value.

Syntax

The syntax for the extract function is:
EXTRACT (
{ YEAR | MONTH | DAY | HOUR | MINUTE | SECOND }
| { TIMEZONE_HOUR | TIMEZONE_MINUTE }
| { TIMEZONE_REGION | TIMEZONE_ABBR }
FROM { date_value | interval_value } )

Note

You can only extract YEAR, MONTH, and DAY from a DATE.
You can only extract TIMEZONE_HOUR and TIMEZONE_MINUTE from a timestamp with a time zone datatype.

Applies To

  • Oracle 11g, Oracle 10g, Oracle 9i

For Example

extract(YEAR FROM DATE '2003-08-22')would return 2003
extract(MONTH FROM DATE '2003-08-22')would return 8
extract(DAY FROM DATE '2003-08-22')would return 22