收缩sqlserver事务日志

若要允许 DBCC SHRINKFILE 命令收缩文件，首先需要通过将数据库恢复模式设置为 SIMPLE 来截断该文件。

示例，收缩数据库abce的事务日志

USE abce;  
GO  
-- Truncate the log by changing the database recovery model to SIMPLE.  
ALTER DATABASE abce  
SET RECOVERY SIMPLE;  
GO  
-- Shrink the truncated log file to 1 MB.  
DBCC SHRINKFILE (abce_Log, 1);  
GO  
-- Reset the database recovery model.  
ALTER DATABASE abce  
SET RECOVERY FULL;  
GO