From: | NRonayette <r97m10(at)socotec(dot)fr> |
---|---|
To: | Matthias Teege <matthias(at)mteege(dot)de> |
Cc: | pgsql-general(at)postgresql(dot)org |
Subject: | Re: Why isn't that null |
Date: | 2000-06-27 08:55:46 |
Message-ID: | 39586C12.C41441AC@socotec.fr |
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Thread: | |
Lists: | pgsql-general |
Hi,
May be this insert will work with your test in your function
insert into aufpos(auftrag, artikel, best_menge, vkp,
lieferwoche, cuser, ctime, uuser, utime) values
('175','8501900','12',NULL,'3500','matthias',
now (), 'matthias',now ())
Nicolas
Matthias Teege a écrit :
>
> Moin,
>
> I have al small problem with ISNULL in a trigger
> function. My definition looks like:
>
> IF NEW.vkp ISNULL THEN
> select t1.las into i_kd
> from auftrag t1, aufpos t2 where
> t2.auftrag = t1.id;
> select get_vkp(i_kd, NEW.artikel) into f_vkp;
> NEW.vkp:=f_vkp;
> END IF;
>
> The following SQL query didnt cause this if statement:
>
> insert into aufpos(auftrag, artikel, best_menge, vkp,
> lieferwoche, cuser, ctime, uuser, utime) values
> ('175','8501900','12','','3500','matthias',
> now (), 'matthias',now ())
>
> If I change the function statement as follows:
>
> IF NEW.vkp = 0 THEN
> ...
> END IF;
>
> it works but '0' is a leagal value but not '' (empty). The
> function should only be called if NEW.vkp ist empty.
>
> Many thanks
> Matthias
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