belle's sql musings » performance tuning

A More Effective Selective Index Rebuild/Reorganize Strategy

belle — Sun, 15 Mar 2009 20:15:15 +0000

This is a follow up post to : Why SQL Fragmentation Remains High As mentioned in this previous post, our dilemma was we were rebuilding every index on a nightly basis, and : the process proves to be very resource intensive we don’t see the benefit. The fragmentation for some of the indexes remain high. [...]

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Why Index Fragmentation Remains High

belle — Sun, 15 Mar 2009 13:00:03 +0000

In one of companies I worked for, we used to do nightly index rebuilds. What was baffling is even after the nightly rebuilds, the fragmentation for some of the tables remain high. I did some digging; here’s an explanation on why some index fragmentations remain high. Both Paul Randal and Kalen Delaney (highly respected, very [...]

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