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  • 监控数据库SqlServer

    监控数据库的连接数
    select COUNT( * ) from master.dbo.sysprocesses

    select COUNT( * ) from master.dbo.sysprocesses where dbid=DB_ID('WKOMS') and hostname='OMS-APP'

    select COUNT( * ) from master.dbo.sysprocesses where dbid=DB_ID('WKOMS') and hostname<>'OMS-APP'

    查询 SQL Server TOP 20 最大耗时 sql
    SELECT TOP 20
    total_worker_time/1000 AS [总消耗CPU 时间(ms)],
    execution_count [运行次数],
    qs.total_worker_time/qs.execution_count/1000 AS [平均消耗CPU 时间(ms)],
    last_execution_time AS [最后一次执行时间],
    max_worker_time /1000 AS [最大执行时间(ms)],
    SUBSTRING(qt.text,qs.statement_start_offset/2+1,
    (CASE WHEN qs.statement_end_offset = -1
    THEN DATALENGTH(qt.text)
    ELSE qs.statement_end_offset END-qs.statement_start_offset)/2 + 1)
    AS [使用CPU的语法], qt.text [完整语法],
    qt.dbid, dbname=db_name(qt.dbid),
    qt.objectid,object_name(qt.objectid,qt.dbid) ObjectName
    FROM sys.dm_exec_query_stats qs WITH(nolock)
    CROSS apply sys.dm_exec_sql_text(qs.sql_handle) AS qt
    WHERE execution_count>1
    ORDER BY total_worker_time DESC

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  • 原文地址:https://www.cnblogs.com/jiangyunfeng/p/12096352.html
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