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function to find last day of month

P: n/a
Hello,

Does anyone happen to have a function, prefereably in pl/pgsql, which
given the month and year will return the last day in that month?

Thanks,
Jennifer


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Nov 12 '05 #1
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P: n/a
Hello

try:

CREATE OR REPLACE FUNCTION LastDateOfMonth(date) RETURNS date AS '
SELECT CAST(date_trunc(''month'', $1) + interval ''1 month''
- interval ''1 day'' as date);
' LANGUAGE sql;

Regards
Pavel

On Fri, 5 Dec 2003, Jennifer Lee wrote:
Hello,

Does anyone happen to have a function, prefereably in pl/pgsql, which
given the month and year will return the last day in that month?

Thanks,
Jennifer
************************************************** ***************
DISCLAIMER:

This email is from the Scottish Crop Research Institute, but the views expressed by the sender are not necessarily the views of SCRI and its subsidiaries. This email and any files transmitted with it are confidential to the intended recipient at the e-mail address to which it has been addressed. It may not be disclosed or used by any other than that addressee.
If you are not the intended recipient you are requested to preserve this confidentiality and you must not use, disclose, copy, print or rely on this e-mail in any way. Please notify ma**@scri.sari.ac.uk quoting the name of the sender and delete the email from your system.

Although SCRI has taken reasonable precautions to ensure no viruses are present in this email, neither the Institute nor the sender accepts any responsibility for any viruses, and it is your responsibility to scan the email and the attachments (if any).

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Nov 12 '05 #2

P: n/a
Hello,

Does anyone happen to have a function, prefereably in pl/pgsql, which
given the month and year will return the last day in that month?


Something like this might get you started:

CREATE OR REPLACE FUNCTION public.fom(date)
RETURNS date AS
'
SELECT COALESCE($1, CURRENT_DATE)-EXTRACT(DAY FROM COALESCE($1,
CURRENT_DATE))::INTEGER+1;
'
LANGUAGE 'sql' VOLATILE;

CREATE OR REPLACE FUNCTION public.lom(date)
RETURNS date AS
'
SELECT fom(date (COALESCE($1, CURRENT_DATE) + interval \'1 month\'))-1;
'
LANGUAGE 'sql' VOLATILE;
~Berend Tober


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Nov 12 '05 #3

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