Comments on: SQL SERVER – Behind the Scene of SQL Server Activity of – Transaction Log – Shrinking Log http://blog.sqlauthority.com/2008/08/21/sql-server-behind-the-scene-of-sql-server-activity-of-transaction-log-shrinking-log/ Notes of a SQL Server MVP and Database Administrator Sat, 21 Nov 2009 05:54:09 +0000 http://wordpress.com/ hourly 1 By: deep http://blog.sqlauthority.com/2008/08/21/sql-server-behind-the-scene-of-sql-server-activity-of-transaction-log-shrinking-log/#comment-56754 deep Fri, 16 Oct 2009 13:23:11 +0000 http://sqlauthority.wordpress.com/?p=864#comment-56754 Is it really necessary to reduce the size of T-log file? Correct me, if I am wrong, but to complete the active transactions, the t-log requires certain amount of free space in the T-log. If the T-log is growing to a certain size, it really means such amount of space is required in the t-log to complete all the transactions. If we shrink the log file, then SQL server has to auto grow the log file size whenever required, which will consume server resources with an impact on the overall performance. Therefore, it is advisable not to shrink the database-log file, until and unless you are running out of disk space. Is it really necessary to reduce the size of T-log file? Correct me, if I am wrong, but to complete the active transactions, the t-log requires certain amount of free space in the T-log. If the T-log is growing to a certain size, it really means such amount of space is required in the t-log to complete all the transactions.

If we shrink the log file, then SQL server has to auto grow the log file size whenever required, which will consume server resources with an impact on the overall performance.

Therefore, it is advisable not to shrink the database-log file, until and unless you are running out of disk space.

]]> By: Jason http://blog.sqlauthority.com/2008/08/21/sql-server-behind-the-scene-of-sql-server-activity-of-transaction-log-shrinking-log/#comment-55823 Jason Fri, 11 Sep 2009 19:32:55 +0000 http://sqlauthority.wordpress.com/?p=864#comment-55823 I have been trying to work on a straight forward way to shrink the transaction logs on several databases (after backups have completed) and have a question. Is there a script I can use to reorganize and shrink a transaction log in SQL 2005 after a backup? Just backing the log up and doing a DBCC Shrinkfile doesn’t work, based on my research (please correct me if I am wrong), I am thinking it is because there is active data that was previously written near the end of the log. I also do not want to do a “with truncate only” and loose data. In Management Studio, if I manually shrink the file and tell it to reorganize, it works, but I would prefer a script to do this. Thanks I have been trying to work on a straight forward way to shrink the transaction logs on several databases (after backups have completed) and have a question.

Is there a script I can use to reorganize and shrink a transaction log in SQL 2005 after a backup?

Just backing the log up and doing a DBCC Shrinkfile doesn’t work, based on my research (please correct me if I am wrong), I am thinking it is because there is active data that was previously written near the end of the log. I also do not want to do a “with truncate only” and loose data.

In Management Studio, if I manually shrink the file and tell it to reorganize, it works, but I would prefer a script to do this.

Thanks

]]> By: izlexx http://blog.sqlauthority.com/2008/08/21/sql-server-behind-the-scene-of-sql-server-activity-of-transaction-log-shrinking-log/#comment-55608 izlexx Fri, 04 Sep 2009 21:48:57 +0000 http://sqlauthority.wordpress.com/?p=864#comment-55608 thanks for all. thanks for all.

]]> By: Tim Ford http://blog.sqlauthority.com/2008/08/21/sql-server-behind-the-scene-of-sql-server-activity-of-transaction-log-shrinking-log/#comment-51127 Tim Ford Mon, 20 Apr 2009 18:06:16 +0000 http://sqlauthority.wordpress.com/?p=864#comment-51127 Hello Pinal, great article, however one aspect of @LauraV 's original question was the apparent continued growth of the log file. That comes down to two reasons: either her log file is not sized correctly for the transactional load of the supported application or she needs to increase the frequency of log backups on the database. - Tim Ford aka "@SQLAgentMan" Hello Pinal, great article, however one aspect of @LauraV ’s original question was the apparent continued growth of the log file. That comes down to two reasons: either her log file is not sized correctly for the transactional load of the supported application or she needs to increase the frequency of log backups on the database.

- Tim Ford
aka “@SQLAgentMan”

]]> By: sL1pknots http://blog.sqlauthority.com/2008/08/21/sql-server-behind-the-scene-of-sql-server-activity-of-transaction-log-shrinking-log/#comment-45083 sL1pknots Thu, 25 Dec 2008 20:11:24 +0000 http://sqlauthority.wordpress.com/?p=864#comment-45083 this site is very good :) this site is very good :)

]]> By: Gaurav A http://blog.sqlauthority.com/2008/08/21/sql-server-behind-the-scene-of-sql-server-activity-of-transaction-log-shrinking-log/#comment-44301 Gaurav A Thu, 20 Nov 2008 07:33:43 +0000 http://sqlauthority.wordpress.com/?p=864#comment-44301 Hello Pinal, Really a great article...thanks a lot..... can u give me a link from where i get more information about the same....i.e. acitve n inactive transaction.. And i have one question to ask... Is it possle to shrink log file during log-shipping..? If yes then how.. Plzzzzzzz reply.... Hello Pinal,

Really a great article…thanks a lot…..
can u give me a link from where i get more information about the same….i.e. acitve n inactive transaction..

And i have one question to ask…
Is it possle to shrink log file during log-shipping..?
If yes then how..

Plzzzzzzz reply….

]]> By: Aamir Hasan http://blog.sqlauthority.com/2008/08/21/sql-server-behind-the-scene-of-sql-server-activity-of-transaction-log-shrinking-log/#comment-42339 Aamir Hasan Wed, 03 Sep 2008 03:08:40 +0000 http://sqlauthority.wordpress.com/?p=864#comment-42339 hello i see your artical it greate but i have some issues i am using ms sql 2005 i am basically a web developer but developing a project using ajax asp.net and ms sql 2005 well i have some issue on store procedure write know need one well i have two tables abc and xyz i am using crusor get first row of table abc and then password to xyz to get specfic data from xyz and then gaing untial first table end and then insert into ta temporary table there is isssue is when i insert into table when a abc data was not found then it also send a a value of abc in tem table how can i avoid when xyz is empty then dont insert abc row in temp table plz wait i need your help waiting hello
i see your artical it greate but i have some issues i am using ms sql 2005
i am basically a web developer but developing a project using ajax asp.net and ms sql 2005

well i have some issue on store procedure write know need one

well i have two tables abc and xyz

i am using crusor get first row of table abc and then password to xyz to get specfic data from xyz and then gaing untial first table end and then insert into ta temporary table

there is isssue is when i insert into table when a abc data was not found then it also send a a value of abc in tem table
how can i avoid when xyz is empty then dont insert abc row in temp table
plz wait i need your help waiting

]]> By: Prakash http://blog.sqlauthority.com/2008/08/21/sql-server-behind-the-scene-of-sql-server-activity-of-transaction-log-shrinking-log/#comment-42115 Prakash Thu, 28 Aug 2008 03:51:24 +0000 http://sqlauthority.wordpress.com/?p=864#comment-42115 Hi, As per LauraV mentioned the problem,i just want to suggest you can create the alert in sqlserver agent with 90% thresold value which executes the transaction log backup job.So if in the middle of scheduled transaction log backup job if the log gets full then alerts will automatically execute it. Kindly reply suggesteion. - Prakash Hi,

As per LauraV mentioned the problem,i just want to suggest you can create the alert in sqlserver agent with 90% thresold value which executes the transaction log backup job.So if in the middle of scheduled transaction log backup job if the log gets full then alerts will automatically execute it.

Kindly reply suggesteion.

- Prakash

]]> By: Mitesh L Shah http://blog.sqlauthority.com/2008/08/21/sql-server-behind-the-scene-of-sql-server-activity-of-transaction-log-shrinking-log/#comment-41854 Mitesh L Shah Thu, 21 Aug 2008 04:48:10 +0000 http://sqlauthority.wordpress.com/?p=864#comment-41854 nice to read above artical thanks to both Imran as well as Pinal who appreciated his knowledge and placed on his site. thanks a lot and hope for more like this in future. nice to read above artical thanks to both Imran as well as Pinal who appreciated his knowledge and placed on his site.

thanks a lot and hope for more like this in future.

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