Home Forums SQL Server 2005 T-SQL (SS2K5) EXISTS Subqueries: SELECT 1 vs. SELECT * (Database Weekly 11.02.2008) RE: EXISTS Subqueries: SELECT 1 vs. SELECT * (Database Weekly 11.02.2008)

  • February 13, 2008 at 1:29 pm

    #778061

    Barely. I would doubt it would be visible.

    I prefer the .. EXISTS (SELECT <constant> ... format, as it's fairly clear from that that no values are been returned

    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

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