Forum Replies Created

Viewing 15 posts - 211 through 225 (of 242 total)

  • RE: Index not rebuilding

    I take Gails point but I'd still say rebuild those indexes at greater than 30% fragmentation even if less than 1000 pages. This won't make a huge difference though either...

  • RE: Index not rebuilding

    GilaMonster (3/18/2009)


    Tim Walker (3/18/2009)


    I think there is a good chance that contention for that 3GB will reduce lifetime pages spend in cache. So if working on a 30% limit as...

  • RE: Index not rebuilding

    GilaMonster (3/18/2009)


    Tim Walker (3/17/2009)


    GilaMonster (3/17/2009)


    The usual rule-of-thumb is 1000 pages to a table/index before you needs to worry about fragmentation.

    This is a common view but I don't agree, I think...

  • RE: Index not rebuilding

    GilaMonster (3/17/2009)


    The usual rule-of-thumb is 1000 pages to a table/index before you needs to worry about fragmentation.

    This is a common view but I don't agree, I think 64-ish pages is...

  • RE: Indexes Won't Defrag

    I'm afraid I'm with Adi Cohn, it's much more complex than your reply suggests.

    Although there are theoretical approaches you can take to this, I find the best bet is to...

  • RE: Indexes Won't Defrag

    Krishna (3/17/2009)


    As a genral rule of thumb Fillfactor should be:

    100% for no activity

    90% for low activity

    70% for medium activity

    50% for higher activity or more

    I'm not sure you can have a...

  • RE: Indexes Won't Defrag

    I think the reason that very small tables don't appear to defrag is that normally the first 8 pages are always in mixed extents so appear in eight different extents.

    So...

  • RE: Index Fragmentation/Identity Property

    Dave,

    OK .. I can see how you know how many updates.

    Sorry about the schema point .. My mistake in misreading what you did!

    To see whether a shrink has occurred in...

  • RE: Index Fragmentation/Identity Property

    Dave,

    There is something in your figures I still can't understand here. You are right, they don't stack up.

    How do you know you are updating only a few hundred rows? You...

  • RE: Index Fragmentation/Identity Property

    Dave Mason (3/10/2009)


    GilaMonster (3/10/2009)


    Dave Mason (3/10/2009)


    Oh, as far as the fragmentation threshold goes, it was 3% (or more) this morning. Prior to that, it was 5%.

    I wouldn't worry until...

  • RE: Index Fragmentation/Identity Property

    Mohit (3/11/2009)


    Index fragmentation can be high because the fillfactor is set to 100% correct?

    I had dealt with system where they have very wide cluster keys (I am not allowed to...

  • RE: Lets help the experts help themselves

    I like the way this thread has developed because my objective is to be able to find authorititive material rather than to feel I'm a member of a group of...

  • RE: Tempdb is full error message on sql log

    Richard answer sounds 100% (or 100MB) correct to me!

  • RE: Index Fragmentation/Identity Property

    The trigger need not be on this table, of course ...

  • RE: Index Fragmentation/Identity Property

    I'm with you. this doesn't seem right. I can't see how so few updates could result in so much fragmentation.

    Assuming your stats are correct, could a badly behaved trigger be...

Viewing 15 posts - 211 through 225 (of 242 total)