SQL 2008无法进入数据库

参照http://wenku.baidu.com/link?url=MqVVPy15rUpW7k22mefP1zWQMGstsHHn9oXoXNdlIt17dEdLfZCyuJSqyqS_eIfR0WQbuBCINkWRd7ngNfVIR_HMFfIIKCT5GCr2PyO8Cwy

if you're connecting to the default instance, which it appears you are, you don't need to specify anything. Change your command to:

SQLCMD -E -Slocalhost -dmaster -Q"EXEC sp_detach_db msdb"

数据库状态不正确，这是质疑状态，把分离DB，把日志文件备份放在其它路径，再附加时，删除日志路径。再查看状态是否正常