Re: Oracle Expert and FK indexes

From: Connor McDonald <hamcdc_at_yahoo.co.uk>
Date: Thu, 15 Nov 2001 09:41:37 -0800
Message-ID: <F001.003C62FB.20011115090029@fatcity.com>

If you are not making changes to the parent in the relationship, then the indexes are not needed (at least for locking concerns).

hth
connor

• "Boivin, Patrice J" <BoivinP_at_mar.dfo-mpo.gc.ca> wrote: > Does someone know why the Oracle Expert would
  > recommend dropping indexes on
  > FK columns?
  >
  > Maybe it calculates there is a low likelihood of the
  > table being locked
  > during referential integrity checks ?
  >
  > I thought it was a good idea to have indexes on FK
  > columns... this is an old
  > 7.3.4.5. database.
  >
  > Regards,
  > Patrice Boivin
  > Systems Analyst (Oracle Certified DBA)
  > --
  > Please see the official ORACLE-L FAQ:
  > http://www.orafaq.com
  > --
  > Author: Boivin, Patrice J
  > INET: BoivinP_at_mar.dfo-mpo.gc.ca
  >
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Received on Thu Nov 15 2001 - 11:41:37 CST