Home Forums SQL Server 2005 SQL Server 2005 Performance Tuning Insert on a clustered index - is column ordering (ASC or DESC) important ? RE: Insert on a clustered index - is column ordering (ASC or DESC) important ?

  • March 10, 2011 at 8:22 am

    #1297123

    Added at the end (past highest current value in index) is about the best for minimising fragmentation and page splits. unless you absolutely need it desc for some queries, leave it.

    Added randomly throughout is what causes high page splits and fast fragmentation

    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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