实用于MSSQL2000、2005
use databasename BACKUP LOG databasename WITH NO_LOG DUMP TRANSACTION databasename WITH NO_LOG DBCC SHRINKDATABASE(databasename) use databasename BACKUP LO
use databasename BACKUP LOG databasename WITH NO_LOG DUMP TRANSACTION databasename WITH NO_LOG DBCC SHRINKDATABASE(databasename) use databasename BACKUP LO