Re: SQL Server - do I need PHP to run COMMIT?

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Do you have the "truncate log on checkpoint" option enabled? Also, if you
want to reduce the size of the log file if shrinking doesn't work, try
running the following against the database. Of course, you should backup
the DB first.


SET NOCOUNT ON
   DECLARE @LogicalFileName sysname,
           @MaxMinutes INT,
           @NewSize INT

   -- *** MAKE SURE TO CHANGE THE NEXT 4 LINES WITH YOUR CRITERIA. ***
   USE     [CLEANUP]              -- This is the name of the database
                                  -- for which the log will be shrunk.
   SELECT  @LogicalFileName = 'FHMMSYS_Log',  -- Use sp_helpfile to
      -- identify the logical file
      -- name that you want to shrink.
           @MaxMinutes = 10,      -- Limit on time allowed to wrap log.
           @NewSize    = 100       -- in MB

   -- Setup / initialize
   DECLARE @OriginalSize int
   SELECT @OriginalSize = size -- in 8K pages
     FROM sysfiles
     WHERE name = @LogicalFileName
   SELECT 'Original Size of ' + db_name() + ' LOG is ' +
           CONVERT(VARCHAR(30),@OriginalSize) + ' 8K pages or ' +
           CONVERT(VARCHAR(30),(@OriginalSize*8/1024)) + 'MB'
     FROM sysfiles
     WHERE name = @LogicalFileName

   CREATE TABLE DummyTrans
     (DummyColumn char (8000) not null)

   -- Wrap log and truncate it.
   DECLARE @Counter   INT,
           @StartTime DATETIME,
           @TruncLog  VARCHAR(255)
   SELECT  @StartTime = GETDATE(),
           @TruncLog = 'BACKUP LOG ['+ db_name() + '] WITH TRUNCATE_ONLY'
   -- Try an initial shrink.
   DBCC SHRINKFILE (@LogicalFileName, @NewSize)

   EXEC (@TruncLog)

   -- Wrap the log if necessary.
   WHILE     @MaxMinutes > DATEDIFF (mi, @StartTime, GETDATE()) -- time
has not expired
         AND @OriginalSize = (SELECT size FROM sysfiles WHERE name =
@LogicalFileName)  -- the log has not shrunk
         AND (@OriginalSize * 8 /1024) > @NewSize  -- The value passed in
for new size is smaller than the current size.
     BEGIN -- Outer loop.
       SELECT @Counter = 0
       WHILE  ((@Counter < @OriginalSize / 16) AND (@Counter < 50000))
         BEGIN -- update
           INSERT DummyTrans VALUES ('Fill Log')  -- Because it is a char
field it inserts 8000 bytes.
           DELETE DummyTrans
           SELECT @Counter = @Counter + 1
         END   -- update
       EXEC (@TruncLog)  -- See if a trunc of the log shrinks it.
     END   -- outer loop
   SELECT 'Final Size of ' + db_name() + ' LOG is ' +
           CONVERT(VARCHAR(30),size) + ' 8K pages or ' +
           CONVERT(VARCHAR(30),(size*8/1024)) + 'MB'
     FROM sysfiles
     WHERE name = @LogicalFileName
   DROP TABLE DummyTrans
   PRINT '*** Perform a full database backup ***'
   SET NOCOUNT OFF

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