SQL Server 清空Log

SELECT name, log_reuse_wait_desc FROM sys.databases 

--if the log_reuse_wait_desc  is replication then remove it

 

 

EXEC sp_removedbreplication YourDatabaseName

 

 

SELECT name, log_reuse_wait_desc FROM sys.databases 

 

 

-- log_reuse_wait_desc  on database should be changed to "nothing" now. if yes do following steps

 

ALTER DATABASE YourDatabaseName SET RECOVERY SIMPLE

 

 

 

DBCC SHRINKFILE (N'Your Logical Log Name', 0, TRUNCATEONLY)

 

 --Now My log file size drop from 18GB to 0MB

 

 

--after that you should reset you database recovery model to full if you need.