| Collect Table Stats [message #598135] |
Thu, 10 October 2013 10:26  |
Diego Pafumi
Messages: 12
Registered: July 2004
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Junior Member |
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Hi to all,
I need some assistance on this issue. We are running 11g (11.2.0.3)
We have a "working table" that is empty at the beginning of the day.
Then we start adding rows (insert) with a key column called STATE with a value of 100.
At the same time, there are other apps that pickup data in state 100 , process that data and change that state to 200 or 300.
There is also another app that pickup data in state 200 , process that data and change that state to 300 or 400.
So in summary, the data on that table is at the beginning empty, then all the rows are in state 100, they slowly move to different states (200, 300, etc) and by the end of the day, they are all in 400.
My question is what would be the best way to collect stats on this table?
I was thinking to create an hourly job to collect stats on that table:
exec dbms_stats.gather_table_stats (
ownname => 'SCOTT',
tabname => 'WORK_TABLE',
estimate_percent => dbms_stats.auto_sample_size,
degree => 3,
cascade => true );
Any suggestions? Should we cancel the Oracle Standard jobs executed at 10 PM?
Thanks!!
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| Re: Collect Table Stats [message #598138 is a reply to message #598136] |
Thu, 10 October 2013 11:10  |
Diego Pafumi
Messages: 12
Registered: July 2004
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Junior Member |
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Hello,
The problem is with queries using that table:
select .... from WORK_TABLE where state = xxxx
They were slow. So I applied that logic of collecting stats hourly. I wonder if there is a better way to do that.
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