Hurting performance instead of improving

  • Hi all,

    I've read some posts that indicate that using UPDATE STATISTICS on large tables without the use of WITH FULLSCAN can lead to performance degredation.

    My question is:

    Will I end up hurting performance if I make use of DBREINDEX as this executes sp_UPDATESTATS?

    Also is it bad to run any of the above on replicated DB's while in contineous merge replication?

    Anyone care to share their thoughts?

  • DBRindex updates the stats with full scan. What I always advise against is doing a sampled update stats (the default) after a reindex, because the update stats can leave the stats less accurate.

    No idea on merge repl. I've never worked with it.

    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

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