SqlServer 备份与还原。

首先创建存储过程，执行下面的代码，
--杀掉进程
然后调用语句 exec killspid ? 加入到上面的SQL 语句里面即可
create proc killspid (@dbname varchar(20))
as
begin
declare @sql nvarchar(500)
declare @spid int
set @sql= 'declare getspid cursor for
select spid from master.dbo.sysprocesses where dbid=db_id( '''+@dbname+ ''')'
exec (@sql)
open getspid
fetch next from getspid into @spid
while @@fetch_status < > -1
begin
exec( 'kill '+@spid)
fetch next from getspid into @spid
end
close getspid
deallocate getspid
end

use master

go
--脱机
alter database demo set offline

use master
go
--连机
alter database demo set online