RE: How to calculate Last and First Day of Month?

the first is always the first and the last may be calculated by using last_day function.

-----Original Message-----
Sent: Wednesday, January 23, 2002 4:32 PM To: Multiple recipients of list ORACLE-L

Charlie Mengler wrote:
>
> I would have thought that the "first day of the month"
> is ALWAYS the 1st, as in 1 (ONE)!
>
> Please explain why it needs to be calculated or
> could be a value other than ONE.
>
> >
> > >>> stant_98_at_yahoo.com 01/23/02 10:35AM >>>
> > Hey guys,
> >
> > I know this is propablby easy, but I'm a bit
> > overwhelmed here this week. Can you please tell me how
> > to get first and last days of the month given SYSDATE?
> >
> > thanks a lot
> >
> > Regards
> >

Another case of 'On what day does Xmas fall this year? - on December 25th'.

I think that using the TRUNC() function with the suitable parameter must help you truncate SYSDATE to the first day of the month - perhaps TRUNC(SYSDATE, 'MM') or similar (too tired to RTFM). Then TO_CHAR with the suitable format should return whatever you want. For the last day, I presume that identifying the first day of the NEXT month and substracting 1 must simplify the 'is this 30/31/28/29' question.

-- 
Regards,

Stephane Faroult
Oriole Ltd
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Please see the official ORACLE-L FAQ: http://www.orafaq.com
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Author: Stephane Faroult
  INET: sfaroult_at_oriole.com

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