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RE: Why does my insert creates so many logs?

From: Fink, Dan <Dan.Fink_at_mdx.com>
Date: Wed, 18 Sep 2002 12:43:46 -0800
Message-ID: <F001.004D2D33.20020918124346@fatcity.com>


Operations that are performed as nologging will still generate redo for the following:
Space management (updates to the data dictionary) Undo/rollback (each insert generates an undo entry which generates a redo entry)

-----Original Message-----
Sent: Wednesday, September 18, 2002 1:39 PM To: Multiple recipients of list ORACLE-L

Hi.

A developer of mine is running a large insert as select:

insert /* parallel hint */ into table A nologging
(select * from table b where ...);

There are no indices on table A and a PK disabled. Still that insert generates a large amount of logs. What could be the reason for that? Any ideas? Table A is not partitioned and has NOLOGGING attribute on the dba_tables set to Yes.

thanks

Gene



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Author: Fink, Dan
  INET: Dan.Fink_at_mdx.com
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San Diego, California        -- Mailing list and web hosting services
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To REMOVE yourself from this mailing list, send an E-Mail message to: ListGuru_at_fatcity.com (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing). Received on Wed Sep 18 2002 - 15:43:46 CDT

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