Well, thanks a lot, but this actually is not a problem at all, for the
table already exists and contains lots of non-NULL numbers.
The real problem is that the update trigger does not work (or, more
precisely, that I don't see what I am doing wrong and how to fix it) :(
SELECT MAX(column) FROM table
will return null when there are no values yet for that column. I
believe you need to do something like:
SELECT CASE WHEN MAX(column) IS NOT NULL THEN MAX(column) ELSE 0
END FROM table
Or simpler:
SELECT ISNULL(MAX(column), 0) FROM table
Best,
---
Ondra Čada
OCSoftware: [EMAIL PROTECTED] http://www.ocs.cz
private [EMAIL PROTECTED] http://www.ocs.cz/oc
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