| analyze table [message #191253] |
Tue, 05 September 2006 07:29  |
bahy91
Messages: 91
Registered: September 2005
Location: Amsterdam
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Member |
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Hi All,
can the command of 'ANALYZE TABLE 'xxx'COMPUTE STATISTICS;
have anything to do with the query execution time on the same table 'xxx'.
Thanks,
best Regards
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| Re: analyze table [message #191264 is a reply to message #191256] |
Tue, 05 September 2006 07:39  |
bahy91
Messages: 91
Registered: September 2005
Location: Amsterdam
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Member |
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Hi,
wel i have a query on a table and the execution time of the query was 20 sec ,before i intiate the 'ANALYZE TABLE 'xxx' COMPUTE STATISTICS;' it becomes no more than 2 sec after that.
if this is the solution for the performance problem i face ,i will consider putting it in the script that run the query..
Thanks,
Best Regards
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| Re: analyze table [message #191267 is a reply to message #191264] |
Tue, 05 September 2006 07:44 |
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Mahesh Rajendran
Messages: 10708
Registered: March 2002
Location: oracleDocoVille
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Senior Member
Account Moderator |
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>>if this is the solution for the performance problem i face ,i will consider putting it in the script that run the query..
Did you determine what is the 'problem' here?
Statistics collection is something you need to do as part of regular database maintenance.
>>,i will consider putting it in the script that run the query
doin that everytime you run the query will help nothing ( and may produce negative effect).
Collect statistics only after there is a major change in data.
Else, once a while stats on tables/indexes would do.
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