aa8d7cd2_Cost_Based_Oracle_Fundamentals__Comments
[Chapter] Chapter 4 [Last addendum] 24th March 2006 [Title] Simple B-tree access [Comments] 
If you’ve got the selectivity right, you can probably make a sensible decision about whether or not to use an indexed access path or a tablescan. This chapter gets you going with simple B-tree indexes.
Cost Based Oracle Fundamentals
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