Re: max (timestamp,timestamp)

am Mon, dem 13.11.2006, um 13:46:00 +0000 mailte T E Schmitz folgendes:
> I tried the following query but the query fails as
> "function max (timestamp w. timezone,timestamp w. timezone) does not exist"
>
> SELECT id,
>
> MAX(last_updated,
> (SELECT MAX (last_updated) FROM product_category_member WHERE
> product_category_member.id = product_category.id))
>
> FROM product_category
>
>
> product_category.last_updated and product_category_member.last_updated
> are timestamps with timezone.

Really, there are no such function. Perhaps this can help you:

SELECT id, MAX(product_category.last_updated),
MAX(product_category_member.last_updated) from product_category,
product_category_member WHERE product_category_member.id =
product_category.id;

**untested**

Your fault is that there are no max(timestamp,timestamp) - funktion and
i think, you should read more about JOINs.

Andreas
--
Andreas Kretschmer
Kontakt: Heynitz: 035242/47215, D1: 0160/7141639 (mehr: -> Header)
GnuPG-ID: 0x3FFF606C, privat 0x7F4584DA http://wwwkeys.de.pgp.net