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Embarasing question ....

From: Norman Dunbar <>
Date: Fri, 11 May 2007 14:00:28 +0100
Message-Id: <>

Afternoon all,

Sorry about the 'stupidity' of the following question, but I've just been bitten by it, and I can't find a proper answer anywhere in the Oracle DOCS, online or anywhere. If you know of a location for a Fine Manual that I can read, please tell me. Thanks.

I have a database which calls out to an external software package via an extproc listener. This started failing for no apparent reason with 'failed to verify indextype' errors.

DBA_INDEXTYPES has no STATUIS columns, but joining to DBA_OBJKECST gave me 'VALID' for the STATUS column there.
Looking at all my indexes under DBA_INDEXES shows the STATUS to be VALID there as well.

As far as I was concerned, the error was misleading - my indexes and indextypes are ok. (First mistake !)

However, further investigation (after raisng a call with the vendor) showed that under DBA_OBJECTS, for some of the indexes, the STATUS column showed up as INVALID. This was the cause of my problem.

Q1. How is it possible for an INDEX to be VALID but the object to be INVALID ? Q2. Is it wrong of me to think that if the object is 'broken' that the index should be too?

I've looked in the docs, the status column on XXX_INDEXES says that it is for unpartitioned indexes and shows whether they are valid or unusable. For the XXX_OBJECTS the status column simply says where 'the object is valid or not'.

What am I missing ?


Norman Dunbar.
Contract Oracle DBA.
Rivers House, Leeds.

Internal : 7 28 2051
External : 0113 231 2051

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Received on Fri May 11 2007 - 08:00:28 CDT

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