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Home -> Community -> Mailing Lists -> Oracle-L -> RE: wait event puzzler
Yes, 'db file sequential read' is always a single block read. It is 'db
file scattered read' which is <= DB_FILE_MULTIBLOCK_READ_COUNT
At 10:35 AM 6/11/2003 -0800, you wrote:
A SINGLE block? I was convinced that it was <= DB_FILE_MULTIBLOCK_READ_COUNT
blocks.
Are you sure?
Mladen Gogala
Oracle DBA
Phone:(203) 459-6855
Email:[EMAIL PROTECTED]
-----Original Message-----
Sent: Wednesday, June 11, 2003 2:19 PM
To: Multiple recipients of list ORACLE-L
Dennis:
THe event 'db file sequential read' is NOT always an INDEX Scan. It is just a single block read which TYPICALLY happens during an INDEX scan. The word 'TYPICALLY' is the key here.
Best Regards,
K Gopalakrishnan
Wolfgang Breitling
Oracle7, 8, 8i, 9i OCP DBA
Centrex Consulting Corporation
http://www.centrexcc.com
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Author: Wolfgang Breitling
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