Re: When should one rebuild an index?
Date: Fri, 26 Dec 2008 21:51:09 -0800
> We can use
> ANALYZE INDEX <index> VALIDATE STRUCTURE
> command on the affected indexes - each invocation of this command
> creates a single row in the INDEX_STATS view.
> Thus determining the indexes which are good candidates for rebuilding.
> BUT my doubt is that if,
> we use dbms_stats to gather the statstistics for CBO using cascade
> option. Then if
> ANALYZE INDEX <index> VALIDATE STRUCTURE is ran , that what will be
> fate of the stattistics gathered using dbms_stat for index( cascade
> Also, analyze command is deprecated now. So is there any other way to
> find out the indexes which needs rebuilding.?
I can think of a few worse criteria but you are reasonably close. As does Charles Hooper I highly recommend you read Richard Foote's notes.
-- Daniel A. Morgan Oracle Ace Director & Instructor University of Washington damorgan_at_x.washington.edu (replace x with u to respond) Puget Sound Oracle Users Group www.psoug.orgReceived on Fri Dec 26 2008 - 23:51:09 CST