Home Forums SQL Server 2005 T-SQL (SS2K5) replace a Date A with Date B if Date A is null RE: replace a Date A with Date B if Date A is null

  • April 23, 2015 at 1:57 pm

    #1793118

    same table? sure:

    UPDATE Customer

    SET UpdatedDate = CreatedDate

    WHERE UpdatedDate IS NULL

    AND CreatedDate IS NOT NULL

    different table ? if you can join the tables together, then yes.

    UPDATE Customer

    SET VerifiedDate = Verfications.VerifiedDate

    FROM Customer

    INNER JOIN Verfications ON Customer.CustomerId = Verfications.CustomerId

    WHERE Customer.VerifiedDate IS NULL

    AND Verfications.VerifiedDate IS NOT NULL

    Lowell

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