Reducing The Size Of The Transaction Log File
Oct 3, 2006
At this time I am only playing with the applications that generate the data and send it to the database. Without doing too much, and with deleting most data tables that were created, my transaction log file has grown over a gigabyte. I tried using the SQL server management studio (express) to shrink the database (tried shrinking files, too) but that did not make the file smaller. Right now there is hardly any data in the database (6 tables, a dozen columns and rows each) so it must be old transactions that are kept in the log. How do I get rid of the old data and make the file size smaller? Thanks.
Kamen
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May 25, 2001
If I have a transaction log in a database of size 1GB ( space allocated is during creation of database) currently only 300 mb of its space is used i.e. nearly 700 mb is free. If I want to reduce physical file size of transaction log by 200 mb and release it for operating system then How can I do it???
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Jul 17, 2003
i am new to sql server. i recently found the transaction log size of my database has reached 109 MB. how can i reduce it. a transaction log backup was sceduled daily at 12.00 noon nad full backup monthly.
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Jan 3, 2001
Can anyone help me reduce a transaction log. It is currently at 2.5GB because it was set to autogrow with no backup !?
I need to drastically reduce it and have backed it up and tried dbcc shrinkfile...but...it now says space used is 120MB but current size is still 2.5GB.
How can i reduce this down please ??
thanks
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Dec 7, 2007
I have a Log file grown to 28 G.
TASK: I want to claim the hard disk space.
I want to use
--backup Log DB-NAME with truncate_only
--dbcc shrinkfile(DB-NAME_Log,1)
Is there any risk involved in above steps, and OR would any experienced Folk like to share his or her idea to the Task as above.
Many Thanks,
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Feb 12, 2008
I have a database who is in full recovery mode. I have four maintenence plans setup: database backup, log backup, optimization and integrity checkup. The last two plans run weekly and the first two run daily. I found that the log size often increase to a dramatically size in a very short period, almost same size as the database file (4G). Further I found that the size seems increase a lot after the last two plan runs.
My question is that the optimization operation(reconstruct index page) will write any reocord to log file? Is this possible a reason?
Now the log file occupy too much disk space (90% of space can be free). What I should do? Shrink database weekly?
Thanks
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Apr 29, 2002
hi
i have a database that becomes to big after a few days. is there a chance to say if the table reaches a number of lines or a special memorysize, delete (or better archive) the oldest entries?
thanks
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Dec 14, 2001
I have a production database of a size of 70 GB. Half of the data was archived and deleted from the current database. What is the best way to
reduce the size of the database, as we cannot shrink an entire database to be smaller than its original size? Thanks a lot!
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Jan 10, 2005
I created few jobs that would archive the production DB and delete the archived data...
but it looks like the DB size is not reducing!!! Some times it looks like the size has increased!!
I think this is because of the log file size has increaded by the DELETE operations....But what can I do for this???
Please Help!!
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Apr 17, 2002
How the size of transaction file is calculated. are there any standards.
I created my database with 2000 mb data filesize and 200 log file size.
now my datafile size has reach to 11000 mb but log file size is still 200.
Therefore when I take the online backup my logsize totally consumed and I have to cancel my backup.
Please reply ASAP.
regards
Sanjeev Lamba
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Nov 29, 1999
I created a database and had its file size as automatic grow. Now the database file is of 17 MB and its transaction log file size is 230 MB. After checking transaction log file properties I came to that it is using 13 mb only and the rest of the 230 MB i.e 217 MB is free. I want that area in the transaction log to be freed and get the transaction file size to its actual size. Any help will be greatly appreciated.
Thank you in advance.
P.S: It is very urgent.
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Jan 31, 2003
(Windows 2000 professional running SQL Server 2000)
How do you reduce the file size of the transaction log? Is it safe to delete the transaction log? I tried clicking on the ellipse (...) box in database properties, but even tho i'm the dba, it says i don't have permissions to do that! I see the "automatically grow transaction log" and "maximum file size for transaction log" dialogs, but our transaction log is already 5.5 GB, and we need for it to be WAY smaller! Is there a way to back it up, then start over with a new one or something?
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Aug 21, 2006
Hi,
Database transaction log file has reached to 1 GB and (99% of this space is free). When try to reclaim the unused space, I have no luck. Initial size of the transaction log has now reaches 1GB. When trying to change the initial size to 5 MB, it does not work.
I have backup the transaction log with Truncate the transaction log but system is no releasing the space.
Please Guide.
Thanks
Shafiq
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Jun 8, 2004
Hello. I am wondering how to effectively reduce the size of my database. After viewing the individual table sizes, I have come to realize that nearly 99% of the database's size is due to images. I am told that too much binary data is not good. How can I go about reducing the size of my database (possibly the images themselves)? I'd appreciate any help.
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Dec 10, 2001
hi, i'm a newbie in SQL Server and have recently setup a test SQL 7 server. I used all the defaults at the beginning, and now the MDB file is about 500MB and the LDF file is of similar size.
i'm still trying to figure out how to reduce the size of the transaction log file. Currently I only have full backup of the database once a week, and there is no backup for transaction log.
as of this moment, the transaction log is of not much use to me, but I really want to get it reduced as i'm running out of disk space.
and i'd also greatly appreciate if someone could suggest a good DBA practice on the proper setup/handling of transaction logs (how to balance the disk-space usage AND be able to use the transacton logs for proper roll-over during a recovery process).
i'd soon be setting up a SQL 7 server where about 10 active users are expected at any one time. I've read that the transaction log file should be about 40% to 50% of the estimated size of the database file, and should be allowed "auto-grow". So what happens if the more space is required by the transaction logs? Does a full-backup purge the transaction logs (like the way they do in Exchange Server)?
Thanks!
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Jul 19, 2002
Hi,
My transaction log file's physical size has exceeded 2GB. How can I reduce that?
Is there any way by which this file size can be controlled?
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Apr 29, 2004
Hello, everyone:
I am not sure wether transaction log file size affect the database performance. My SQL 2K suddenly became slow yestoday. The data file is 3GB, and transaction log file is 11GB. Someone suggested I should shrink transaction log file. Can it work?
Thanks a lot.
ZYT
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May 21, 2007
I have a client with 150MB database, the transaction log file isnearly 23GB. It's a PITA for me to backup his data and restore it onmy server as it takes about 30 minutes to restore as it re-creates a23GB file with no transactions in it :-As well as the space taken up by it, does it do any harm being thatsize? e.g. does it decrease performance?While it's there, considering the database is backed up daily, does itactually do any good?I know how to truncate and shrink logs, is it advisable / safe /worthwhile to do this on a regular basis?
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Mar 8, 2000
HELP !!! I have a 1.2GB transaction log that I cannot reduce. I have tried SHRINKFILE, SHRINKDATABASE, restoring the file into a new data base, etc. The log file is only using 15MB and will not release the remainder to the OS
Any and all suggestions would be helpful
Thanks, Chad
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Jul 20, 2005
Hello,A while back I dropped a text column from a SQL Server 7 databaseroughly 3GB in size. I expected the size of the database to decreaseby around 1GB, but no change occurred. After searching usenet, Idiscovered that SQL Server 7 has no way of reclaiming that space, butthat there is some command that can be run in SQL Server 2000 thatwill reclaim it.I have since migrated this database to SQL Server 2000, and am nowtrying to figure out what that command is, but cannot locate anyusenet posts about it... also tried searching books online, but can'tfind anything that way either.Does anyone know what I should run?Thanks,Tom
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Sep 4, 2006
I have H Drive with 12 GB size.
The Transaction log file of my Database is given in H drive.
i.e H:Krishna_log.LDF.
My database initial setting for the Krishna_log.LDF is 10 GB.
so currently I can see 10 gb file occupied in the H Drive.
very soon my database Krishna_log.LDF is going to increase 10%.
Even though If do Backup/Shrink, it will reduce to the initial to 10 GB.
So all I need is, change the initial size of the
Krishna_log.LDF from 10 GB to 5 GB.
Pls give your suggetions...(I dont mind to shutdown,Restart the Sql server do these changes to achive this Task).
Thanx in advance.
Regards,
Krishna
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Nov 10, 2011
In one of my SSRS report under body properties default size (width = 34.54712cm , height = 20.92853cm ). I've tried to reduce the size to width = 26cm ,height = 18 . once i changed. the width its going to the same orginal size again.
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Sep 4, 2007
I am trying to resize a database initial log file from 500M to 2M. I€™m using€?
ALTER DATABASE <DBNAME> MODIFY FILE ( NAME = <DBLOGFILENAME, SIZE = 2 ) "
And I'm getting "MODIFY FILE failed. Specified size is less than current size." I tried going into the database properties and setting the log file to 2M, but it doesn€™t keep the changes.
Any help with this process?
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Jan 2, 2001
i used "dbcc shrink file" to reduce the log file of a database.the query analyzer says "successfully executed" but the log file doesn't seem to reduce..am i missing something?
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Apr 15, 2008
I have a log file that is approximately 50 GIG. I backed up just the log and the file size of the .bak is 192 GIG . Why is this? Shouldn't it be closer to the 50 GIG.
Normally I wouldn't let log grow this much. But we are in process of getting new server up and running and don't have backups going yet. They are working on getting that up and running this week.
So I did a log backup to give me back some log space for now but was concerned when I saw the size of the .bak file.
When I view media contents of the backup device it shows one tranaction log back up and size of 192 GIG.
What is up with this. I know in SQL 2000 the log backup files where never this big. they were about the size of the log itself.
Any ideas?
Stacy
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Jun 15, 2006
I installed sql 2005 a while back. Then I recently found out my file system was fat32 (I don't understand why the hardware people did this...) and I had to convert to NTFS. Naturally the sql service no longer worked so I uninstalled inorder to reinstall now I can't reinstall it I keep getting this message
native_error=5039, msg=[Microsoft][SQL Native Client][SQL Server]MODIFY FILE failed. Specified size is less than current size.
I'll try to post the full log in a new post.
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Jul 25, 2007
I have one db test with one .mdf and .ldf file...mdf file size is 100mb and for some reson i removed all the tablesfrom that .mdf file and transfer it into new secondary file so all thetables moved into secondary file now i want to reduce the first .mdffile from 100 mb to 50mb is that possible,it's showing 90mb is free.Please reply
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Apr 5, 2001
Hello!
We have unusual situation. We increased the size of transaction log up to 100MB.
After we run the transaction log backup the physical size of transaction log file getting smaller and smaller from 100 to 88 and then to 76 and so on.
Do you now the reason?
Thank you,
Natalia
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Apr 12, 2000
I have a very serious problem, if somebody can help me quickly. my transaction log file is getting bigger and bigger even after truncating. today morning when i checked, it was 1.5 GB, by evening it has gone upto 3GB, the total size of the database is 3.4 GB, out of which 3GB is Transaction log. why is it growing heavily!!!!!!!!. there is not much transaction happening. even after truncating the transaction log it is still showing 3gb.
help!!!!!!!!!!!!!!!!!!!!!!!!!!!!
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Feb 22, 2000
I currently have an database that is 110 mb and grows on an average of 5mb a week. THe enviornment is IIS 5.0 /ASP /SQL 6.5. However I find myself continously increasing the log file since it frequently fills up. At this point it is 300mb and can be filled in less than an hour with an average of 35 users. I realize that this file has alot of overhead and is affected directly by the application making the updates. Last week on a busy day (time card app) I witnessed the log increase from below 75% to 100% in a minute, forcing me to truncate the log. This application is an administrative nightmare! Any ideas what could cause this type of activity in the trans log.
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Jan 7, 2003
Hi!
We have here a small database (around 400 MB) with simple recovery. Also autogrowth is active.
But why does the transactionlog also sized up, when it is not in use?
Our TL is around 100 MB and filled with 5 MB.
Everytime the DB gets bigger, the TL also....
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Jul 17, 2003
This isin continuation with my previous query. If i cannot reduce th T Log size , how can i stop it from increasing further. Can i make secondary log files which can be deleted later on?
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Jun 26, 2006
Hi All,
I need to create a script that would return the size of transaction logs for all databases. I ran a select statement against the sysfiles table but you can only run it against one db at a time. Any suggestions?
Thanks.
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