查询指定数据库的当前连接数和关闭指定数据库的所有连接

--数据库当前能接受的最大连接数

select @@MAX_CONNECTIONS

--查询所有数据库当前的连接数

sp_who

--查询指定数据库的当前连接数

SELECT * FROM

[Master].[dbo].[SYSPROCESSES] WHERE [DBID]

IN

(

SELECT

[DBID]

FROM

[Master].[dbo].[SYSDATABASES]

WHERE

NAME='fdaysmanygoods'

)

--关闭指定数据库的所有连接

use master

declare @spid int,@str varchar(100),@dbid int,@dbname varchar(255)

set @dbname= 'fdaysmanygoods '

select @dbid=dbid from master.dbo.sysdatabases WHERE name = @dbname

declare cur_spid cursor local for

select spid from master.dbo.sysprocesses where
dbid=@dbid

open cur_spid

fetch from cur_spid into @spid

while @@fetch_status=0

begin

set @str= 'kill '+Cast(@spid as varchar(10))

exec(@str)

fetch from cur_spid into @spid

end

close cur_spid

deallocate cur_spid