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                                | Author | Topic |  
                                    | masterdineenAged Yak Warrior
 
 
                                        550 Posts | 
                                            
                                            |  Posted - 2013-01-18 : 16:52:57 
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                                            | Hello therethis must be a simple thing.  But i have a log file of 30 gig from developing and heavy updating.so i backed up the transaction log via ssms.i made sure that Truncate the transaction log is selected.but once the back finished.i looked at the log file within the data folder.and it still says 30 gig.what am i doing wrong? |  |  
                                    | masterdineenAged Yak Warrior
 
 
                                    550 Posts | 
                                        
                                          |  Posted - 2013-01-18 : 17:39:24 
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                                          | sorry. Iam using developer 2008 |  
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                                    | robvolkMost Valuable Yak
 
 
                                    15732 Posts | 
                                        
                                          |  Posted - 2013-01-18 : 17:43:04 
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                                          | Backing up the log does not physically shrink the log file.  You need to use DBCC SHRINKFILE in order to reduce the size.If this is strictly a development server you could set your database to Simple recovery, this will reduce or prevent the log from growing in the first place. |  
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                                    | masterdineenAged Yak Warrior
 
 
                                    550 Posts | 
                                        
                                          |  Posted - 2013-01-18 : 17:53:18 
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                                          | I thought when you backup the transaction log. the log is then truncatedor is that only with log shipping? |  
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                                    | robvolkMost Valuable Yak
 
 
                                    15732 Posts | 
                                        
                                          |  Posted - 2013-01-18 : 18:01:47 
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                                          | Truncating the log is a misnomer.  Backing up the log clears the internal contents of the log file, but performs no physical modifications beyond that.If you want to know more about how the transaction log works in SQL Server:http://msdn.microsoft.com/en-us/library/ms189085%28v=sql.105%29.aspxhttp://www.sqlskills.com/blogs/paul/category/transaction-log/ |  
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