Really useful comment.

Extract is a new one on me :

select extract( year from sysdate) from dual;

As for add_months…

select months_between('31-DEC-11', '28-FEB-11') from dual;
select ROUND(months_between('31-DEC-11', '06-MAR-11')) from dual;
select FLOOR(months_between('31-DEC-11', '06-MAR-11')) from dual;

Really good stuff.

Thanks for sharing,

Mike

trunc(sysdate,’yyyy’) will return the start of the year (1st Jan).

round(sysdate,’yyyy’) will return the start of the year (1st jan) closest to the current date. This means july-2010 becomes 1/jan/2011, while june-2010 becomes 1/jan/2010. This is really helpful for Australian financial years (which run 1-july to 30-june) because extract(year from round(sysdate,’yyyy’)) will give you the financial year number for the date.

Also don’t forget the months_between function. Handy for calculating a person age (divide result by 12).

thanks, I like that much better – less typing…which is always a consideration first thing in the morning pre-coffee.

Mike