IT Answers » SQL performance

SQL Server Plan Cache

Rick Martinez — Tue, 28 Dec 2010 23:30:06 +0000

There is a bucket in plan cache with 75 objects in it and it is the same sql statement. Other than using DBCC FREEPROCCACHE what will clear out the cache? Restarting SQL SERVER Service? I use the code below to look up how many plans are in a bucket.

SELECT bucketid, entries_in_bucket = COUNT(*) FROM sys.dm_exec_cached_plans GROUP BY bucketid ORDER BY 2 DESC

SQL Server 2005 Enterprise Edition SP3 Performance

Rick Martinez — Thu, 28 Oct 2010 03:27:46 +0000

Question Edited by Michael Tidmarsh

Will the SQL performance improvements in V6R1 affect QUERY?

Fw — Fri, 27 Aug 2010 15:13:23 +0000

Will the SQL performance improvements in V6R1 affect QUERY?

Does QUERY use SQL under the hood?

SSRS – SQL runs in 1 minute but Reporting Services tuns for 30 minutes

Cvillavicencio — Mon, 14 Sep 2009 16:15:31 +0000

I have a report whose dataset query that takes approximately 1 minute to run in SQL Management Server. That same query in a Reporting Services report takes aver 30 minutes to run. And it is inconsistent in its behavior since sometimes it will never finish running and error out. When it does run and it is rendered. At the first user interaction it errors out regardless.

1) Has anyone run into an issue where the difference between SQL and Reporting Services is this huge?

Select into vs Insert into in SQL Server

DBM — Thu, 20 Aug 2009 16:36:39 +0000

Hi experts, What is better between Select into vs Insert into in SQL Server when it comes to performance?

thx

slow update Query(Primary Key)

Mxaxyogesh2002 — Tue, 14 Jul 2009 16:22:18 +0000

dear Friends
when i run below query its take
more than 10 minutes and still running….

update auditdata set TATCallType=’12′,TATCallUnit=’1′ from auditdata auditdata inner join Auditdata_sms_12 a_sns on auditdata.ID = a_sns.id

auditdata is my original table
in above table ID is primary key

Auditdata_sms_12 is my temp table

whats wrong in aobe SQL Query
plz help me

thanx in advance..

SQL2005 SP3

Lmurthy — Thu, 04 Jun 2009 15:46:55 +0000

Hi,
I recently applied Service Pack 3 to SQL2005 64 bit and my server performance has been very slow since. The statistics have been updated on my databases, but that has not made a difference.

Has anyone else experienced such behaviour post SP3 install?

Thanks,
Lakshmi

understanding and detecting sql performance situation with abnormal 400 shutdown

Modiyooch — Wed, 03 Jun 2009 14:32:01 +0000

Need help in understanding and detecting situation with logical files built for sql rpgle performance and abnormal shutdown.

Our system went down due to ups failure. All of a sudden the rpgle sql program is a resource hog because it is not selecting the lf that was built specifically for performance issues. LF is intact and shows not damage; it’s just not being used. Program does not reference this file in the rpg sql statement, but has always used it. I recompile the LF and everything is normal.
My questions are 1. what’s going on? and 2. how do I query the system for other lfs that are now being ignored? thanks

SQL login client not admin

Deliverance — Thu, 23 Apr 2009 17:39:30 +0000

it is payday and on the client side of our DB there are some login errors, where in SQL do you go to check points of failure?

PK allows null values in progress DB does this reduce performance of sql statements?

Blom — Fri, 27 Feb 2009 13:50:29 +0000

Hello
Primary Key allows null values in progress DataBase, does this reduce performance of sql statements??