Thanks for the response,

you are right I would get an Exception describing that the record
already exists, but because I do not know which DBMS is being used
(one of Oracle, MS SQL and mySQL), I can not discern if it was a
'real' error or just the fact that the record already exists.

marc

-----Ursprüngliche Nachricht-----
Von: Rick Emery [mailto:[EMAIL PROTECTED]]
Gesendet: Mittwoch, 14. November 2001 19:46
An: Votteler Marc; [EMAIL PROTECTED]
Betreff: RE: INSERT with SELECT on same table


> If one of the table's fields is defined as UNIQUE or PRIMARY KEY, it will
> allow the insertion only once with that key.  When a second attempt is
made
> to insert the record with the same key, the insertion will be ignored and
> you may ignore the error code that results.

> Would that work for you?

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