ODP: [firebird-support] Unique Constraints and NULLs

[Karol Bieniaszewski liviusliv...@poczta.onet.pl [firebird-support]]

Hi,

If you do not need referential constraint based on this unique only you need to 
have uniques.
Then you can simply create expression index, e.g.:

CREATE UNIQUE INDEX IXAE_blah_C1C2 ON blach COMPYTED BY(COL1 || ‘_‘ || 
COALESCE(COL2));

Regards,
Karol Bieniaszewski

Re: [firebird-support] Read OAT value

[liviuslivius liviusliv...@poczta.onet.pl [firebird-support]]

Thank you very muchRegards,Karol Bieniaszewski
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