SQL - List Active Connections

SELECT
    spid,
    sp.[status],
    loginame [Login],
    hostname, 
    blocked BlkBy,
    sd.name DBName, 
    cmd Command,
    cpu CPUTime,
    memusage Memory,
    physical_io DiskIO,
    lastwaittype LastWaitType,
    [program_name] ProgramName,
    last_batch LastBatch,
    login_time LoginTime,
    'kill ' + CAST(spid as varchar(10)) as 'Kill Command'
FROM master.dbo.sysprocesses sp 
JOIN master.dbo.sysdatabases sd ON sp.dbid = sd.dbid
WHERE sd.name NOT IN ('master', 'model', 'msdb') 
--AND sd.name = 'db_name' 
--AND hostname like 'hostname1%' 
--AND loginame like 'username1%'
ORDER BY spid