"无法删除数据库，因为该数据库当前正在使用"，删除数据库方法

 USE MASTER
 GO

 DECLARE @dbname SYSNAME
 SET @dbname = '修改此处数据库名' --这个是要删除的数据库库名

 DECLARE @s NVARCHAR(1000)
 DECLARE tb CURSOR LOCAL
 FOR
     SELECT s = 'kill   ' + CAST(spid AS VARCHAR)
     FROM   MASTER..sysprocesses
     WHERE  dbid = DB_ID(@dbname)

 OPEN   tb
 FETCH   NEXT   FROM   tb   INTO   @s
 WHILE @@fetch_status = 0
 BEGIN
     EXEC (@s)
     FETCH NEXT FROM tb INTO @s
 END
 CLOSE   tb
 DEALLOCATE   tb

 EXEC ('drop   database   [' + @dbname + ']')