Re: Calculated column using timestamp

Syntax

 EXTRACT ({YEAR | MONTH | DAY | HOUR | MINUTE | SECOND} FROM d) 

Description

Finds and returns the value of a specified datetime field from date d.

Example

 SELECT EXTRACT (YEAR FROM TO_DATE ('2010-01-04', 'YYYY-MM-DD')) "extract" FROM DUMMY; extract 2010
 

Regards,

Vijay