Truncating a data fileThe following example truncates the primary data file in the AdventureWorks database. However, to meet the specified target_size, virtual log file 4 should also be freed, but it cannot because it holds the end portion of the logical log. Should I be concerned about "security"? Linked 0 Database size bigger after delete from table Related 1698Add a column, with a default value, to an existing table in SQL Server1171How to check if a column exists in this content
Point-in-time restorability may be the reason you choose full over bulk-logged recovery model. 0 Chipotle OP Adam Rush Mar 28, 2014 at 5:26 UTC Thanks Rob. Truncate the log. Leave new vidit August 3, 2012 12:21 pmHi Sir, I have Used a wrong update command in sql server i want come back on same database value what can i do That is a very bad thing It causes very high numbers of virtual log files (VLFs) which can have a very bad impact on performance for anything that needs to scan
I changed it back to FULL after freeing the disk space. –neoscribe Oct 31 '12 at 0:23 I'm gonna kiss your chicks if you don't mind :) –mhesabi Sep ALTER DATABASE AdventureWorks SET RECOVERY FULL; GO share|improve this answer edited Feb 13 at 10:25 Peter Mortensen 10.4k1370108 answered Apr 1 '09 at 14:37 Quentin THIS is the much Looking at this and setting the recovery model to FULL I have tried the following: USE master GO EXEC sp_addumpdevice 'disk', 'ByBoxData', N'C:\
You will need to run BACKUP LOG and DBCC SHRINKFILE several times to get the log file to shrink. For example, if there is a 10-MB data file, a DBCC SHRINKFILE operations with a target_size of 8 causes all used pages in the last 2 MB of the file to even after a checkpoint I still was not able to shrink the log file. Log Reuse Wait Desc Log_backup Telekinesis resistant locks Bringing whale meat in to the EU How can Average Joe create a micro-state that is a member of the UN in the least amount of time?
Virtual log files that hold any part of the logical log cannot be freed. This applies only to empty files that have never contained data.This option is not supported for FILESTREAM filegroup containers.If target_size is specified, DBCC SHRINKFILE tries to shrink the file to the ALTER DATABASE AdventureWorks2012 ADD FILE ( NAME = Test1data, FILENAME = 'C:\t1data.ndf', SIZE = 5MB ); GO -- Empty the data file. http://stackoverflow.com/questions/779153/why-cant-i-shrink-a-transaction-log-file-even-after-backup When using SQL Server Management Studio, after doing a full database backup followed by a full transaction log backup, the shrink files page shows plenty of free space available, but it
This would block the shrink. Log File Won't Shrink Sql 2012 The community does not like to answer questions from people who do not accept answers. :) Edit: The steps above should have worked. After switching to the simple recovery model If you switch from the full or bulk-logged recovery model to the simple recovery model, you break the backup log chain. Shrinking the Transaction Log If you know that a transaction log file contains unused space that you will not be needing, you can reclaim the excess space by reducing the size
The recovery model is set to FULL. If you take backup of log properly then unused log should be truncated. Sql Server Shrink Log File Not Working Drives me nuts when I get a dissertation on why a practice is bad, rather than answering the question. Because The Logical Log File Located At The End Of The File Is In Use. Also, don't switch between full and simple recovery model.
Shrinking is not possible until after log truncation marks one or more of the virtual log files as inactive.A shrink-file operation can remove only inactive virtual log files. news Does Apex have an equivalent to the C# object initializer? Why did my Inquisitor increase the foreign religion? You MUST do a full backup before the physical file shrinks. –HardCode Mar 16 '09 at 16:37 what downvote is that? Log_reuse_wait_desc Log_backup
Virtual log file 4 is then freed and the size of the physical log file is reduced to the size you requested.NoteCertain factors, such as a long-running transaction, can keep virtual To allow the DBCC SHRINKFILE command to shrink the file, the file is first truncated by setting the database recovery model to SIMPLE. Join the community Back I agree Powerful tools you need, all for free. http://philgiebler.com/log-file/sql-server-2005-shrink-log-file-not-working.html Join them; it only takes a minute: Sign up Here's how it works: Anybody can ask a question Anybody can answer The best answers are voted up and rise to the
For example, if the error log contains the following error message then the following error will occur: Copy DBCC SHRINKFILE for file ID 1 is waiting for the snapshot transaction with Note, however, that pages are not used by the log files. For more information, see Factors That Can Delay Log Truncation.To shrink a log file (without shrinking database files)DBCC SHRINKFILE (Transact-SQL)How to: Shrink a File (SQL Server Management Studio)To monitor log-file shrink Sys.databases Log_reuse_wait_desc share|improve this answer answered Feb 8 '10 at 23:45 Paulo Santos 1436 add a comment| Your Answer draft saved draft discarded Sign up or log in Sign up using Google
This means you need to run log backups every 15 minutes which requires full or bulk-logged recovery model. Right click on the database, open the "Tasks" sub menu, open the "Shrink" submenu and select "Files". Taxing GoFundMe Donations Why Confidence Interval is always wider than Prediction interval? check my blog If your log file is growing large, then you're not backing it up frequently enough.