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Cache on sysdate? --From 9i performance planning manual

From: chao_ping <chao_ping_at_vip.163.com>
Date: Thu, 26 Dec 2002 05:18:41 -0800
Message-ID: <F001.00522409.20021226051841@fatcity.com>


Hi, list friends:

        I am reading oracle 9.2 performance planning manual, and see it says:

 Today's date. SELECT SYSDATE FROM DUAL can account for over 60% of the workload on a database.

	{page 33 of that manual}
	How to understand that words? And does it mean to get the sysdate from application server rather than the db server? How to do it in the sql statement? anyone have examples?
	



Regards
zhu chao
msn:chao_ping_at_163.com
www.happyit.net
www.cnoug.org(ChinaOracle User Group)

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Author: chao_ping
  INET: chao_ping_at_vip.163.com

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