function to find last day of month

[Jennifer Lee]

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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[Pavel Stehule]

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
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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.

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[btober]

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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