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RE: Hidden Columns

From: DENNIS WILLIAMS <DWILLIAMS_at_LIFETOUCH.COM>
Date: Wed, 28 May 2003 07:45:21 -0800
Message-ID: <F001.005A4428.20030528074521@fatcity.com>


Bill - Try Google. A quick search yielded the fact this has something to do with creating columns of objects, nested table, varray, or REF type.

Dennis Williams
DBA, 80%OCP, 100% DBA
Lifetouch, Inc.
dwilliams_at_lifetouch.com

-----Original Message-----
Sent: Wednesday, May 28, 2003 9:45 AM
To: Multiple recipients of list ORACLE-L

Hi all,

I know this is RTFM but I can't find the right part in the FM to R. So any help would be appreciated:

In the context of:

  DBMS_STATS.GATHER_DATABASE_STATS(method_opt=>'FOR ALL HIDDEN COLUMNS');

what is a "hidden column". I tried gathering stats FOR ALL HIDDEN COLUMNS and it didn't seem to gather any stats for any columns. What is it meant to do?

Thanks
- Bill.

PS. The complete syntax for the column is: FOR ALL [INDEXED | HIDDEN] COLUMNS [size_clause]

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Author: Bill Buchan
  INET: wbuchan_at_uk.intasys.com

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Author: DENNIS WILLIAMS
  INET: DWILLIAMS_at_LIFETOUCH.COM
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San Diego, California        -- Mailing list and web hosting services
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