On page 92 of Oracle Performance Tuning 101, there's a recommendation
to avoid the use of SELECT X FROM DUAL, claiming that it can '..use up system
performance in a hurry', but does not go on to elaborate as to exactly *why*.
Could someone shed a bit more light on this? Thanks.
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Jeffery D Thomas
DBA
Thomson Information Services
Thomson multimedia Inc.
Email: [EMAIL PROTECTED]
DBA Quickplace: http://gkmqp.tce.com/tis_dba
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