EXTRACT Function in SQL

Ahmed S — Mon, 04 Feb 2013 17:09:00 +0000

EXTRACT function extracts and returns the year, month, day, hour, minute, second, or time zone from Z, Z may be a timestamp or a DATE.

The Syntax of the EXTRACT Function is:

EXTRACT({ YEAR | MONTH | DAY |HOUR | MINUTE | SECOND } |

{ TIMEZONE_HOUR |TIMEZONE_MINUTE } |{ TIMEZONE_REGION | }

TIMEZONE_ABBR }FROM Z)

This query returns Day ,Month and Year from the Hire_date field.

SELECT First_Name,Last_Name,EXTRACT(Day from Hire_date)
as Day,EXTRACT(Month from Hire_date) as Month,
EXTRACT(Year from Hire_date) as Year from employees

Result

This query display the hour, minute, and second from a TIMESTAMP returned by TO_TIMESTAMP():

SELECT

EXTRACT(HOUR FROM TO_TIMESTAMP(’07-May-2011 15:18:27′,’DD-MON-YYYY HH24:MI:SS’)) AS HOUR,

EXTRACT(MINUTE FROM TO_TIMESTAMP(’07-May-2011 15:18:27′,’DD-MON-YYYY HH24:MI:SS’)) AS MINUTE,

EXTRACT(SECOND FROM TO_TIMESTAMP(’07-May-2011 15:18:27′,’DD-MON-YYYY HH24:MI:SS’)) AS SECOND

FROM dual;

Result :

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EXTRACT Function in SQL