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Index fragmentation


Index fragmentation

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zi
zi
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Dear Experts

I have made a tracing file, then run tuning advisor. The recommendation shows a lot of indexes. I looked at the fragmentation for some indexs and I found it 50%. I made rebuild.

I OPEND THE FRAGMENTATION AGAIN AND FOUND IT STILL 50%

any idea why it remains as it is after rebuilding index.

Thanks lot
GilaMonster
GilaMonster
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Let me guess, tiny table, 2 or 4 pages in size.

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
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kevaburg
kevaburg
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The most important thing here is not the amount a fragmentation but rather the ratio of fragmentation to pages. If you have 4 pages with 50% fragmentation I would not worry about there being a problem. If I have 1000 pages with 50% fragmentation then something needs to be done!

This is a situation whereby understanding the collective information presented on the screen is a great deal more important than seeing a single number and thinking the world is going to end!
zi
zi
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Thank you
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