Re: index table corruption...

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A few different scenarios

1. missing indexes .... will have slower performance than possible
2. invalid indexes ... will not be used, and again will have slower performance. (indexes can be invalid due to failing direct loads, moving tables....)
3. corrupt indexes ... unpredictable results. Often you will get errors (like ORA-600 or corrupt block), but I have also seen where the result set was wrong and no indication of a problem (typically manifests itself in different number of rows returned when do select statement and do the same select modified to invalidate the use of indexes (old PK+0 or PK || '' trick).

HTH - babette
babette_at_pythian.com

• Original Message ----- To: "Multiple recipients of list ORACLE-L" <ORACLE-L_at_fatcity.com> Sent: Thursday, September 13, 2001 11:40 PM

> !! Please do not post Off Topic to this List !!
>
> Hi all,
>
> If index table is corrupted or missing will it caused downtime to the db ?
> or it will just slowdown the query due to index available for usage ?
>
>
>
> Thank you
>
> Sinardy
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-- 
Please see the official ORACLE-L FAQ: http://www.orafaq.com
-- 
Author: Babette Turner-Underwood
  INET: babattt_at_home.com

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