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Location of a DB Block [message #493238] Mon, 07 February 2011 00:41 Go to next message
muktha_22
Messages: 527
Registered: December 2009
Senior Member
Hi All,

Can any one tell me:
1) How to find out, whether my Query return the output from the block of BUFFER CACHE or from DATAFILES?
2) How to calculate the no of data blocks were used to return a single output.

Regards:
Muktha

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Re: Location of a DB Block [message #493242 is a reply to message #493238] Mon, 07 February 2011 00:55 Go to previous messageGo to next message
BlackSwan
Messages: 26766
Registered: January 2009
Location: SoCal
Senior Member
It would be helpful if you followed Posting Guidelines - http://www.orafaq.com/forum/t/88153/0/

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Re: Location of a DB Block [message #493245 is a reply to message #493242] Mon, 07 February 2011 01:19 Go to previous message
Michel Cadot
Messages: 68732
Registered: March 2007
Location: Saint-Maur, France, https...
Senior Member
Account Moderator
Query v$mystat (with a join on v$statname) to get statistics on "block" and "read".

Regards
Michel

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