How to truncate log file in SQL Server 2008
In SQL Server data is stored using two physical files: (.mdf) extension which contains the data. (.ldf) extension which contains log. Log file size increases very rapidly and depend on the operation performed on the data. After a long time period this file becomes too large. When log file is too large it takes time to perform some operations like ( attach , de-attach, backup, restore ... etc ). Using the code Step 1. Copy/type the below given SQL. Step 2. Change @DBName to < Database Name>, @DBName_log to Step 3. Execute the SQL. ALTER DATABASE @DBName SET RECOVERY SIMPLE WITH NO_WAIT DBCC SHRINKFILE(@DBName_log, 1) ALTER DATABASE @DBName SET RECOVERY FULL WITH NO_WAIT GO source : http://www.codeproject.com/Tips/625760/How-to-truncate-log-file-in-SQL-Server