am Thu, dem 27.03.2008, um 9:36:57 +0000 mailte A B folgendes:
> Hello.
> I have a table
> create table TBL (a serial, b integer, c integer, unique(b,c));
>
> so I for each combination of b,c get an unique number a.
>
> Now, if the table is filled and I remove some rows, so there is a gap
> in the a numbers. Is there a way to reuse the "free" serial numbers?
>
> I don't feel like writing a script to select all numbers and do some
> searching for free numbers.
Why do you think you need the numbers?
Normally, you don't need this, a sequence can produce sufficient
numbers.
If you really need this behavior:
http://www.varlena.com/GeneralBits/130.php
Regards, Andreas
--
Andreas Kretschmer
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