T-SQL系列之查看各个数据库性能负载(MSSQL)

-- 查看各个数据库性能负载

SELECT
substring (a.name,0,20) as [数据库名],
[连接数] = (SELECT COUNT(*)
FROM master..sysprocesses b
WHERE
a.dbid = b.dbid),
[阻塞进程] = (SELECT COUNT(*)
FROM master..sysprocesses b
WHERE
a.dbid = b.dbid AND
blocked <> 0),
[总内存] = ISNULL((SELECT SUM(memusage)
FROM
master..sysprocesses b
WHERE
a.dbid = b.dbid),0),
[总IO] = ISNULL((SELECT SUM(physical_io)
FROM
master..sysprocesses b
WHERE
a.dbid = b.dbid),0),
[总CPU] = ISNULL((SELECT SUM(cpu)
FROM
master..sysprocesses b
WHERE
a.dbid = b.dbid),0),
[总等待时间] = ISNULL((SELECT SUM(waittime)
FROM
master..sysprocesses b
WHERE
a.dbid = b.dbid),0)
FROM master.dbo.sysdatabases a WITH (nolock)
WHERE 
DatabasePropertyEx(a.name,'Status') = 'ONLINE'
ORDER BY [数据库名]
go