• UPDATE dbo.Table1

    SET colA = CASE ColC WHEN 'Yes' THEN (SELECT col1 FROM Table2 WHERE col10 = 'A') ELSE NULL END

    ,SET colB = CASE ColC WHEN 'Yes' THEN (SELECT col1 FROM Table2 WHERE col10 = 'A') ELSE NULL END

    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