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replace a Date A with Date B if Date A is null

  • April 23, 2015 at 1:41 pm

    #303220

    Is it possible to replace a Date Value if null with another date in a table?

    Example :

    DATEPART(mm, (ISNULL((DATEADD(mm,1,s.Date)),s.Date)))

  • 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

    --help us help you! If you post a question, make sure you include a CREATE TABLE... statement and INSERT INTO... statement into that table to give the volunteers here representative data. with your description of the problem, we can provide a tested, verifiable solution to your question! asking the question the right way gets you a tested answer the fastest way possible!

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