SQL Server，Could not obtain exclusive lock on database 'model'

创建SQL Server 数据库时出现错误“Could not obtain exclusive lock on database 'model'”

尝试以下方法：

1. to try reconnecting to the database.

2. Restarting the service.

3. killing the spid holding the lock.

执行以下SQL语句来查询：

select  d.name, resource_type,resource_database_id,request_mode,request_status,request_owner_type,request_type
from sys.databases d inner join sys.dm_tran_locks l
on d.database_id = l.resource_database_id
and l.resource_database_id = 3

select spid ,PROGRAM_NAME from master..sysprocesses
where DB_NAME(dbid) = 'model'