Rate this:. Share this: Email Facebook LinkedIn. Like this: Like Loading Leave a Reply Cancel reply Enter your comment here Fill in your details below or click an icon to log in:. Email required Address never made public. Name required. Search for:. Samadhan Pawar Create Your Badge. Follow Following. Sign me up. We notice that the storage associated with the object is all gone.
The index object remains but the underling segment and storage have been automatically dropped. If we now split the last table partition, this will effectively make the: 1 Non-Partitioned Unusable 2 All partitions of the Global Partitioned index unusable 3 Just the last 2 partitions of the Local Partitioned Index unusable.
We notice that all segments associated with the Global Partitioned index which are now unusable have been dropped. As have both unusable partitions from the Local Partitioned Index. However, the segment and storage associated with the unusable Non-Partitioned index still remains. If you wish to contact me directly, please do so at richard. For information on Richard Foote Consulting , please visit richardfooteconsulting. So these commands prior to the Oracle 12c Database previously had locking related issues.
So what was has changed in Oracle Database 12c? Thought the question was worth a seperate blog entry to provide a worthy answer. Follow Following. Richard Foote's Oracle Blog Join 3, other followers. Sign me up. Already have a WordPress. Log in now. Loading Comments Email Required Name Required Website.
Richard Grayson on Oracle 19c Automatic Indexing:…. Richard Foote on Oracle Database 19c Automatic…. Richard Foote on Oracle 19c Automatic Indexing:…. Slow but leaves table totally available to users 2 load in direct mode. Disable constraints before, re-activate afterward. Rating 4 ratings Is this answer out of date? You can also catch regular content via Connor's blog and Chris's blog.
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Question and Answer. Regards, Swadesh Mondal. Also the table is not a partitioned table. There was no maintenance operation happened on the table. Can you please let me know , under what conditions other than the one described in the metalink above an index would be unusable?
A simple rebuild of the index made it valid. These indexes are just simple indexes. Thank You. Sarayu K. I would guess that someone made the indexes unusable alter index I unusable or maybe they did a direct path load that left the index unusable.
All rights reserved. Load completed - logical record count But in short, you did some operation on the table or index, or one of your coworkers manually set the index unusable, or you did some sort of direct path operation. I'd guess, if I had to, that someone decided to "reorganize" a table, that'll do it too. Rating 12 ratings Is this answer out of date? You can also catch regular content via Connor's blog and Chris's blog. Or if video is more your thing, check out Connor's latest video and Chris's latest video from their Youtube channels.
And of course, keep up to date with AskTOM via the official twitter account. Questions Why indexes become unusable? Question and Answer. You Asked Hi Tom, In our database, few indexes became unusable.
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