USE [master] GO ALTER DATABASE DBNAME SET RECOVERY SIMPLE WITH NO_WAIT GO ALTER DATABASE DBNAME SET RECOVERY SIMPLE --简单模式 GO USE DBNAME GO DBCC SHRINKFILE (N'DBNAME_log' , 11, TRUNCATEONLY) GO USE [master] GO ALTER DATABASE DBNAME SET RECOVERY FULL WITH NO_WAIT GO ALTER DATABASE DBNAME SET RECOVERY FULL --还原为完全模式 GO