How to remove session by database name

Question

Hi , 
using exec sp_who will show the list of all the sessions.
How i can remove all the session listed by sp_who by database name like master , etc
Thank You , Shan Ali Khan

Answer 1

This is a simple sp_who I named sp_who3  extrapolated by a 2008R2 instance, but you need to make your own and put to master.
alter procedure sp_who3 (--- 1995/11/28 15:48
@dbname varchar(max) = null ,
@loginame sysname = NULL --or 'active'
as
declare @spidlow int,
@spidhigh int,
@spid int,
@sid varbinary(85)
select @spidlow = 0
,@spidhigh = 32767
if ( @loginame is not NULL
AND upper(@loginame collate Latin1_General_CI_AS) = 'ACTIVE'
begin
select spid , ecid, status
,loginame=rtrim(loginame)
,hostname ,blk=convert(char(5),blocked)
,dbname = case
when dbid = 0 then null
when dbid <> 0 then db_name(dbid)
end
,cmd
,request_id
from sys.sysprocesses
where spid >= @spidlow and spid <= @spidhigh AND
upper(cmd) <> 'AWAITING COMMAND'
and ((case
when dbid = 0 then null
when dbid <> 0 then db_name(dbid)
end = @dbname) or (@dbname is null))
return (0)
end
if (@loginame is not NULL
AND upper(@loginame collate Latin1_General_CI_AS) <> 'ACTIVE'
begin
if (@loginame like '[0-9]%') -- is a spid.
begin
select @spid = convert(int, @loginame)
select spid, ecid, status,
loginame=rtrim(loginame),
hostname,blk = convert(char(5),blocked),
dbname = case
when dbid = 0 then null
when dbid <> 0 then db_name(dbid)
end
,cmd
,request_id
from sys.sysprocesses
where spid = @spid and
((case
when dbid = 0 then null
when dbid <> 0 then db_name(dbid)
end) = @dbname or (@dbname is null))
end
else
begin
select @sid = suser_sid(@loginame)
if (@sid is null)
begin
raiserror(15007,-1,-1,@loginame)
return (1)
end
select spid, ecid, status,
loginame=rtrim(loginame),
hostname ,blk=convert(char(5),blocked),
dbname = case
when dbid = 0 then null
when dbid <> 0 then db_name(dbid)
end
,cmd
,request_id
from sys.sysprocesses
where sid = @sid and
(( case
when dbid = 0 then null
when dbid <> 0 then db_name(dbid)
end) = @dbname or (@dbname is null))
end
return (0)
end
-- loginame arg is null
select spid,
ecid,
status,
loginame=rtrim(loginame),
hostname,
blk=convert(char(5),blocked),
dbname = case
when dbid = 0 then null
when dbid <> 0 then db_name(dbid)
end
,cmd
,request_id
from sys.sysprocesses
where spid >= @spidlow and spid <= @spidhigh and
(( case
when dbid = 0 then null
when dbid <> 0 then db_name(dbid)
end) = @dbname or (@dbname is null))
return (0) -- sp_who