RE: When you should use NOLOGGING while creating indexes

From: Johan Locke_at_i-Commerce Services <Locke_at_i-Commerce>
Date: Sun, 18 Feb 2001 20:52:02 -0800
Message-ID: <F001.002B7A65.20010218204529@fatcity.com>

Advantages:
- Less performance overhead in creating the indexes

Disadvantages:
- Unrecoverable. Ie. If the Database is not shutdown normally after the
creation of the indexes (SHUTDOWN ABORT or crash), you'll have to recreate those indexes.

Also look at:
- Creating an index in using parallel servers (multiple instances) (I think
this can be done - MAYBE SOMEBODY CAN COMMENT)
- Analyzing your tables and indexes regularly ie. "ANALYSE INDEX <name>
[COMPUTE|ESTIMATE] STATISTICS ...." Regards
JL

-----Original Message-----
Sent: Monday, February 19, 2001 5:35 AM
To: Multiple recipients of list ORACLE-L

Hi all,

when I should use NOLOGGING while creating indexes:

what are the advantages and what the dis-advantages...

br and thanks,
Hessu

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Received on Sun Feb 18 2001 - 22:52:02 CST