Also (and conversely), when you insert/update/delete
an indexed table, those index blocks will be loaded
into x$bh.  That doesn't necessarily mean that they
are needed.

hth
connor

 --- Mark Leith <[EMAIL PROTECTED]> wrote: > Could
you conclusively say that? What about those
> obscure indexes that may
> have been added for long running reports that get
> run once every quarter /
> year end what ever.. Just for example.. Without
> knowing the nature of the
> system as well.. It would be pretty hard to tell if
> an index was *never*
> used.
> 
> -----Original Message-----
> Sent: 04 February 2002 20:45
> To: Multiple recipients of list ORACLE-L
> 
> 
> Hmm...
> 
> One option might be to monitor x$bh for blocks
> belonging to that object
> every ten minutes for a week. If it doesn't appear,
> the object can pretty
> conclusively be called "not in use".
> 
> Paul
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> ----- Original Message -----
> To: "Multiple recipients of list ORACLE-L"
> <[EMAIL PROTECTED]>
> Sent: Monday, February 04, 2002 3:31 PM
> 
> 
> Seema,
> 
> It is always better to include the OS and database
> versions to the post :)
> 
> Okay.. To answer your question.. If you are using
> Oracle9i you can find that
> by querying V$OBJECT_USAGE after turning the
> monitoring option for the
> index. If it is pre Oracle9i database there is no
> direct way of doing this.
> 
> 
> Best Regards,
> K Gopalakrishnan
> Bangalore, INDIA
> 
> 
> -----Original Message-----
> Sent: Monday, February 04, 2002 9:55 AM
> To: Multiple recipients of list ORACLE-L
> 
> 
> Hi
> I there any view which can tell us which indexes are
> not in use?
> Thx
> -Seema
> 
> 
> also send the HELP command for other information
> (like subscribing).
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> 
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