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Is it necessary to manually UPDATE STATISTICS for a SQL Server database regularly (e.g. daily) when *AUTO_CREATE_STATISTICS* and *AUTO_UPDATE_STATISTICS* options are ON ?
Started by owlsprt on
, 3 posts
by 3 people.
Answer Snippets (Read the full thread at serverfault):
Yes you need to ....
If you don't do that, and leave those two options off, then statistics are not updated and query performance will suffer.
Recommended practice is to have the statistics updated every night as part of a maintenance plan.
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So in my persistence.xml I turned on hibernate.generate_statistics.
<property name="hibernate.generate_statistics">true</property>
My question is.. how do I access them? Where do the statistics go?
Started by Grasper on
, 4 posts
by 4 people.
Answer Snippets (Read the full thread at stackoverflow):
I would rather use Hibernate Statistics published via JMX if you use spring you can make it real easy with Hibernate Statistics MBean with Spring
In your dao service sessionStats = session.getStatistics()....
You need something like this.
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Lev, I don't think Joan Bellamy, Ron Bellamy or Pete Ritman were members of the EC after the 1997 congress. That reduces the list to 7 (out of 30) EC members who left the party sometime after Hicks' replacement. 23% is even further way from the "almost...
Answer Snippets (Read the full thread at network54):
In any case, Sceptic seems to have failed to....
I don't see that the Star or CPB website carry the EC lists that far back .
Yes you may be right on a couple of those, Ron B for one I may be mistaken about, but I was fairly sure Joan B was still on the EC .
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Ask your Facebook Friends
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Is it possible to get statistics about each users contributions, total line count etc?
Started by REM on
, 4 posts
by 4 people.
Answer Snippets (Read the full thread at stackoverflow):
It can put together graphs and provide all sorts of statistics; including user contributions (Percentage statistics by using "Show Log......
I have used StatSVN.
TortoiseSVN is not capable of gathering statistics (That I'm aware of).
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In previous question I got comment about Oracle statistics:
Oracle doesn't know that 50M is greater than the number of rows. Sure, it has statistics, but they could be old and wrong - and Oracle would never allow itself to deliver an incorrect result ...
Answer Snippets (Read the full thread at stackoverflow):
The statistics....
What it does not (and should not) do is use those statistics in a way that will affect query results , which is what you were trying to do with "ROWNUM < 5 ".
Oracle uses statistics a lot, to generate query execution plans .
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I know about w3schools statistics, but it much differs from the one on my company's site.
Started by Kamarey on
, 4 posts
by 4 people.
Answer Snippets (Read the full thread at stackoverflow):
That's why useful statistics measure over ....
It all depends on the intended audience.
Http://en.wikipedia.org/wiki/Usage_share_of_web_browsers
The w3schools statistics are not very company's site has different statistics from that.
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Is there any benefit to running an UPDATE Statistics after you create an index or is it done automatically for you?
Started by Abe Miessler on
, 4 posts
by 4 people.
Answer Snippets (Read the full thread at stackoverflow):
WITH STATISTICS_NORECOMPUTE = ON.
If the new index needs new statistics they are automatically created, unless you explictly disable the statistics compute for the new index via CREATE INDEX ...
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Do we need to Update table statistics after calling Truncate table or it gets updated automatically?
Q: Do we need to call "UPDATE STATISTICS" after truncating a table?
Started by noob.spt on
, 4 posts
by 4 people.
Answer Snippets (Read the full thread at stackoverflow):
There's also the option to automatically....
Then you could either wait for the job to run, or update the statistics manually.
The usual approach would be a weekly maintenance job.
It depends on how your administrator has configured statistics.
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After I have created a clustered index on a table, is there any point in updating the statistics for that table?
Cheers.
Started by Davie on
, 3 posts
by 3 people.
Answer Snippets (Read the full thread at stackoverflow):
If anything an update statistics will make it worse since it will default to samping the data, where as the index creation updates, so would not show a difference....
No, the statistics will of been updated automatically on the index creation.
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In Emacs Speaks Statistics for R, how can the auto replacement of "_" with "<-" be turned off?
Started by momeara on
, 3 posts
by 3 people.
Answer Snippets (Read the full thread at stackoverflow):
So, when you need an underscore, just press it twice. .
But pressing _ again will turn the "<-" into "_" when you need it .
What rcs said.
To stop this smart behaviour, add (ess-toggle-underscore nil) to your .emacs after ess-site has been loaded .
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