Re: Index clustering factor
Date: Thu, 10 Jan 2008 07:10:07 -0000
The optimizer cannot ignore the index hint for that query. Therefore the hint is illegal.
The first thing to check is whether you have a column coercion issue. What are the types of the columns and of the input variables - and what does OEM tell you about the run-time predicates ?
Author: Cost Based Oracle: Fundamentals
The Co-operative Oracle Users' FAQ
- Original Message ----- From: "Orysia Husak" <Orysia.Husak_at_apollogrp.edu> Subject: RE: Index clustering factor
The statement is expected to fetch only 1 or 2 rows. The default Oracle gather_stats generates a histogram size auto.
We've provided an index hint in the SQL and Oracle sill ignores the
>Our query is :
>Select * from tableA where fielda=:A and fieldb=:B
>We have an index on tableA (fielda, fieldb), but Oracle isn't using the