Hello Michael,

Am 2008-10-31 11:15:54, schrieb Michael Hall:
> > I have a table where I have a serialnumber which shuld be  increased  be
> > each INSERT.  I know I can use max() to get the highest number, but  how
> > can I use it in a INSERT statement?
> 
> Have a look in the manual for the SERIAL data type.
> For fields with a SERIAL data type, you can use DEFAULT in an INSERT 
> statement.

OK, the SERIAL is now working, but there is ONE problem.

If the INSERT fails, the SERIAL is in any case increased...

So this was the reason, why I have tried to use max(serno)  and  add  +1
the get the next value for "serno".

Is there a solution for it?

Since I can use a transaction block if  required,  there  should  be  no
problem with concurence access.

Thanks, Greetings and nice Day/Evening
    Michelle Konzack
    Systemadministrator
    24V Electronic Engineer
    Tamay Dogan Network
    Debian GNU/Linux Consultant


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