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Can I use check constraint with unique constarint with other

  • January 27, 2015 at 1:55 am

    #296939

    Can I Use this :

    ALTER TABLE dbo.T1 ADD CONSTRAINT C1

    UNIQUE (f1,f2) ,

    CHECK (f2 is not null )

  • January 27, 2015 at 2:27 am

    #1773327

    Why not just change the column f2 to not be nullable?

    Gail Shaw
    Microsoft Certified Master: SQL Server, MVP, M.Sc (Comp Sci)
    SQL In The Wild: Discussions on DB performance with occasional diversions into recoverability

    We walk in the dark places no others will enter
    We stand on the bridge and no one may pass

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