Re: Function Help

The main reason is that I am not quering a table with it as of yet...
Ultimately it will before query that is a Month do date query that does not
use a calender month

At 05:29 PM 9/24/01 -0700, Randal L. Schwartz wrote:
> >>>>> "Brian" == Brian C Doyle <bcdoyle(at)mindspring(dot)com> writes:
>
>Brian> Hello all,
>Brian> I am working on a function to determine the date of the first saturday
>Brian> of the month.
>
>Brian> Currently I have:
>
>Brian> CREATE FUNCTION first_saturday(date)
>Brian> RETURNS date
>Brian> AS '
>Brian> Select CASE WHEN date_part(\'dow\',\'$1\'::DATE)=0 THEN date(\'$1\')+6
>Brian> WHEN date_part(\'dow\',\'$1\'::DATE)=1 THEN date(\'$1\')+5
>Brian> WHEN date_part(\'dow\',\'$1\'::DATE)=2 THEN date(\'$1\')+4
>Brian> WHEN date_part(\'dow\',\'$1\'::DATE)=3 THEN date(\'$1\')+3
>Brian> WHEN date_part(\'dow\',\'$1\'::DATE)=4 THEN date(\'$1\')+2
>Brian> WHEN date_part(\'dow\',\'$1\'::DATE)=5 THEN date(\'$1\')+1
>Brian> WHEN date_part(\'dow\',\'$1\'::DATE)=6 THEN date(\'$1\')+0
>Brian> END'LANGUAGE 'sql'
>
>Brian> I get an error that $1 is not a valid date. But I want that to be the
>Brian> variable I enter...
>Brian> what Am I doing wrong???
>
>Working too hard? :)
>
>why not just:
>
>My_Col + 6 - date_part('dow', My_Col)
>
>Don't even need a function for that. :)
>
>--
>Randal L. Schwartz - Stonehenge Consulting Services, Inc. - +1 503 777 0095
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