调优SQL查询输出每个性能计数器的每周平均值
我有一些性能数据要报告 我需要的输出给我的每个计数器每月每周的平均值 以下是使用日期/时间字段的查询,即“2012-01-01 00:00:00.750”调优SQL查询输出每个性能计数器的每周平均值,sql,sql-server-2000,Sql,Sql Server 2000,我有一些性能数据要报告 我需要的输出给我的每个计数器每月每周的平均值 以下是使用日期/时间字段的查询,即“2012-01-01 00:00:00.750” SELECT MachineName , CounterName , InstanceName, CounterValue, ObjectName, CounterDateTime FROM dbo.CounterDetails cdt
SELECT MachineName ,
CounterName ,
InstanceName,
CounterValue,
ObjectName,
CounterDateTime
FROM dbo.CounterDetails cdt
INNER JOIN dbo.CounterData cd ON cdt.CounterID = cd.CounterID
INNER JOIN DisplayToID d ON d.GUID = cd.GUID
WHERE MachineName = '\\SERVER1'
AND CounterDateTime BETWEEN '2012-01-01 00:00:00.750' AND '2012-01-31 23:59:00.750'
GROUP BY ObjectName, CounterName, InstanceName, CounterValue, CounterDateTime, MachineName
ORDER BY CounterDateTime
感谢回复我重新排列了您的字段,因为这对我来说没有意义,但您可以尝试以下内容:
SELECT MachineName
, ObjectName
, InstanceName
, CounterName
, DATEPART( YEAR, CounterDateTime ) As YearNo
, DATEPART( MONTH, CounterDateTime ) As MonthNo
, DATEPART( WEEK, CounterDateTime ) AS WeekNo
, AVG(CounterValue) AS avgCounterValue
FROM dbo.CounterDetails cdt
INNER JOIN dbo.CounterData cd
ON cdt.CounterID = cd.CounterID
INNER JOIN DisplayToID d
ON d.GUID = cd.GUID
WHERE MachineName = '\\SERVER1'
AND CounterDateTime BETWEEN '2012-01-01 00:00:00.750' AND '2012-01-31 23:59:00.750'
GROUP BY MachineName, ObjectName, InstanceName, CounterName
, DATEPART( YEAR, CounterDateTime )
, DATEPART( MONTH, CounterDateTime )
, DATEPART( WEEK, CounterDateTime )
ORDER BY MachineName, ObjectName, InstanceName, CounterName
, DATEPART( YEAR, CounterDateTime )
, DATEPART( MONTH, CounterDateTime )
, DATEPART( WEEK, CounterDateTime )
如果表很大,可能需要在[MachineName]和[CounterDateTime]上创建索引。1。您使用的是什么SQL产品及其版本?请添加相应的标签。2.查询中的列引用不包括表别名。但是,了解哪些列属于哪个表可能确实有帮助。3.另外,最好指定每周平均值所在的列。我确实认为这是反价值,但为什么要让人们猜测呢?4.分组标准也是如此。您希望每周的总体平均值还是按MachineName分组?还是别的原因?谢谢你的回复,我走了,刚回来。1.SQL Server 2000.2将在wknd上发送此消息。3.查看每个性能计数器的平均值,这是计数器值列。4.首先寻找每个计数器值的平均值,然后按MachineName分组。希望这有帮助,将在周末增加更多细节。谢谢,只是尝试一下。返回服务器:Msg 241,级别16,状态1,第1行从字符串转换日期时间语法错误。