清除SQL-LOG文件，获得硬盘空间

SELECT file_id, name FROM sys.database_files;
 
ALTER DATABASE TheDBName
SET RECOVERY SIMPLE;
GO
-- Shrink the truncated log file to 1 MB.
DBCC SHRINKFILE (TheDBName_Log, 1);
GO
-- Reset the database recovery model.
ALTER DATABASE TheDBName
SET RECOVERY FULL;
GO