aa8d7cd2_Cost_Based_Oracle_Fundamentals__Comments
[Chapter] Chapter 5 [Last addendum] 10th Feb 2006 [Title] The Clustering Factor [Comments] 
The most critical measure of the perceived usefulness of a B-tree index is the clustering factor. This chapter tells you what it is, how Oracle calculates it, how the calculation can be totally misleading, and what to do if it is.
Cost Based Oracle Fundamentals
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