SQL Clone
SQLServerCentral is supported by Redgate
 
Log in  ::  Register  ::  Not logged in
 
 
 


count(*) taking forever... emergency


count(*) taking forever... emergency

Author
Message
vick.ram79
vick.ram79
SSC-Enthusiastic
SSC-Enthusiastic (111 reputation)SSC-Enthusiastic (111 reputation)SSC-Enthusiastic (111 reputation)SSC-Enthusiastic (111 reputation)SSC-Enthusiastic (111 reputation)SSC-Enthusiastic (111 reputation)SSC-Enthusiastic (111 reputation)SSC-Enthusiastic (111 reputation)

Group: General Forum Members
Points: 111 Visits: 428
Team - Friday night is turning bad for me...

One of my SPs was taking forever and after a long haul I have nailed it down to one table "TransactionLog" in my db.

Even the statement below is taking forever:
select COUNT(*) from TransactionLog



Just not ending... Can anyone tell what could be the reason??

I ran a dbcc check:
DBCC CHECKTABLE ("dbo.TransactionLog")



The output was:
DBCC results for 'TransactionLog'.
There are 67632 rows in 531 pages for object "TransactionLog".
DBCC execution completed. If DBCC printed error messages, contact your system administrator.



How To Post
Lynn Pettis
Lynn Pettis
SSC-Dedicated
SSC-Dedicated (39K reputation)SSC-Dedicated (39K reputation)SSC-Dedicated (39K reputation)SSC-Dedicated (39K reputation)SSC-Dedicated (39K reputation)SSC-Dedicated (39K reputation)SSC-Dedicated (39K reputation)SSC-Dedicated (39K reputation)

Group: General Forum Members
Points: 39341 Visits: 38538
Have you checked for any blocking?

Cool
Lynn Pettis

For better assistance in answering your questions, click here
For tips to get better help with Performance Problems, click here
For Running Totals and its variations, click here or when working with partitioned tables
For more about Tally Tables, click here
For more about Cross Tabs and Pivots, click here and here
Managing Transaction Logs

SQL Musings from the Desert Fountain Valley SQL (My Mirror Blog)
Michael Valentine Jones
Michael Valentine Jones
SSCertifiable
SSCertifiable (5.7K reputation)SSCertifiable (5.7K reputation)SSCertifiable (5.7K reputation)SSCertifiable (5.7K reputation)SSCertifiable (5.7K reputation)SSCertifiable (5.7K reputation)SSCertifiable (5.7K reputation)SSCertifiable (5.7K reputation)

Group: General Forum Members
Points: 5730 Visits: 11771
Try running the statement below. If it runs much faster, your original query is probably being blocked.



select COUNT(*) from TransactionLog with (nolock)



vick.ram79
vick.ram79
SSC-Enthusiastic
SSC-Enthusiastic (111 reputation)SSC-Enthusiastic (111 reputation)SSC-Enthusiastic (111 reputation)SSC-Enthusiastic (111 reputation)SSC-Enthusiastic (111 reputation)SSC-Enthusiastic (111 reputation)SSC-Enthusiastic (111 reputation)SSC-Enthusiastic (111 reputation)

Group: General Forum Members
Points: 111 Visits: 428
yup - the nolock is soo much faster...

How To Post
Michael Valentine Jones
Michael Valentine Jones
SSCertifiable
SSCertifiable (5.7K reputation)SSCertifiable (5.7K reputation)SSCertifiable (5.7K reputation)SSCertifiable (5.7K reputation)SSCertifiable (5.7K reputation)SSCertifiable (5.7K reputation)SSCertifiable (5.7K reputation)SSCertifiable (5.7K reputation)

Group: General Forum Members
Points: 5730 Visits: 11771
vick.ram79 (10/6/2012)
yup - the nolock is soo much faster...


I am not suggesting that you use NOLOCK in your stored procedure.

You should investigate why your query is being blocked. You may have a long running or uncommited transaction that is causing a problem.
GilaMonster
GilaMonster
SSC Guru
SSC Guru (87K reputation)SSC Guru (87K reputation)SSC Guru (87K reputation)SSC Guru (87K reputation)SSC Guru (87K reputation)SSC Guru (87K reputation)SSC Guru (87K reputation)SSC Guru (87K reputation)

Group: General Forum Members
Points: 87267 Visits: 45272
Chapter 6: http://www.simple-talk.com/books/sql-books/troubleshooting-sql-server-a-guide-for-the-accidental-dba/ (Blocking)

Gail Shaw
Microsoft Certified Master: SQL Server, MVP, M.Sc (Comp Sci)
SQL In The Wild: Discussions on DB performance with occasional diversions into recoverability

We walk in the dark places no others will enter
We stand on the bridge and no one may pass


vick.ram79
vick.ram79
SSC-Enthusiastic
SSC-Enthusiastic (111 reputation)SSC-Enthusiastic (111 reputation)SSC-Enthusiastic (111 reputation)SSC-Enthusiastic (111 reputation)SSC-Enthusiastic (111 reputation)SSC-Enthusiastic (111 reputation)SSC-Enthusiastic (111 reputation)SSC-Enthusiastic (111 reputation)

Group: General Forum Members
Points: 111 Visits: 428
Thanks guys. I will read up on that.

How To Post
GilaMonster
GilaMonster
SSC Guru
SSC Guru (87K reputation)SSC Guru (87K reputation)SSC Guru (87K reputation)SSC Guru (87K reputation)SSC Guru (87K reputation)SSC Guru (87K reputation)SSC Guru (87K reputation)SSC Guru (87K reputation)

Group: General Forum Members
Points: 87267 Visits: 45272
For the nolock, see - http://blogs.msdn.com/b/davidlean/archive/2009/04/06/sql-server-nolock-hint-other-poor-ideas.aspx

Gail Shaw
Microsoft Certified Master: SQL Server, MVP, M.Sc (Comp Sci)
SQL In The Wild: Discussions on DB performance with occasional diversions into recoverability

We walk in the dark places no others will enter
We stand on the bridge and no one may pass


Go


Permissions

You can't post new topics.
You can't post topic replies.
You can't post new polls.
You can't post replies to polls.
You can't edit your own topics.
You can't delete your own topics.
You can't edit other topics.
You can't delete other topics.
You can't edit your own posts.
You can't edit other posts.
You can't delete your own posts.
You can't delete other posts.
You can't post events.
You can't edit your own events.
You can't edit other events.
You can't delete your own events.
You can't delete other events.
You can't send private messages.
You can't send emails.
You can read topics.
You can't vote in polls.
You can't upload attachments.
You can download attachments.
You can't post HTML code.
You can't edit HTML code.
You can't post IFCode.
You can't post JavaScript.
You can post emoticons.
You can't post or upload images.

Select a forum

































































































































































SQLServerCentral


Search