Ssas MDX计数性能问题&;已筛选成员/度量值的总和
我需要在多维数据集上运行以下MDX查询(我无权更改) 这个特定的查询运行大约需要1.5分钟,这太长了。我一直在寻找加速的方法,但我运气不好 有人能找到改进这个查询的方法吗?过去几天我一直在拼命工作,所以如果有任何帮助,我将不胜感激Ssas MDX计数性能问题&;已筛选成员/度量值的总和,ssas,mdx,olap,Ssas,Mdx,Olap,我需要在多维数据集上运行以下MDX查询(我无权更改) 这个特定的查询运行大约需要1.5分钟,这太长了。我一直在寻找加速的方法,但我运气不好 有人能找到改进这个查询的方法吗?过去几天我一直在拼命工作,所以如果有任何帮助,我将不胜感激 `WITH MEMBER [Measures].[1-99_Count] AS COUNT(FILTER ([Scam].[Scam Ref].AllMembers, ([Measures].[Amount Lost
`WITH
MEMBER [Measures].[1-99_Count] AS
COUNT(FILTER ([Scam].[Scam Ref].AllMembers,
([Measures].[Amount Lost]>=1 AND [Measures].[Amount Lost]<=99)))
MEMBER [Measures].[1-99_Amount] AS
SUM(FILTER ([Scam].[Scam Ref].AllMembers,
([Measures].[Amount Lost]>=1 AND [Measures].[Amount Lost]<=99)),
Iif(IsEmpty([Measures].[Amount Lost]),0,[Measures].[Amount Lost]))
SELECT {[Measures].[1-99_Count],
[Measures].[1-99_Amount]} ON COLUMNS,
[First Resolved On Date].[Month].[Month] ON ROWS
FROM [Infocentre]
WHERE ([First Resolved On Date].[Date].[Date].&[20140101]:[First Resolved On Date].[Date].[Date].&[20150623],
[Scam].[Scam Category Level1].&[{d9d6bc38-e73e-e411-9a82-0a713f2121f7}])`
`WITH
成员[度量][1-99_计数]为
计数(筛选器([Scam].[Scam Ref])。所有成员,
([Measures].[Amount Lost]>=1和[Measures].[Amount Lost]=1和[Measures].[Amount Lost]最终,逻辑占了上风,我能够让多维数据集所有者为多维数据集添加一个新维度,这意味着我不再需要尝试让这只狗的早餐正常工作。(只是为了好玩!)
您的第一项措施肯定可以通过以下措施加以改进。
Count(Filter
是一种大多数情况下都可以摆脱的模式。
Mosha在博客中介绍了这种模式,这种模式可以改进:
我还尝试改进第二个计算。如果此条件为真,则[Measures].[Amount Lost]>=1和[Measures].[Amount Lost]=1和[Measures].[Amount Lost]=1和[Measures].[Amount Lost]
WITH
MEMBER [Measures].[1-99_Count] AS
Sum
(
[Scam].[Scam Ref].ALLMEMBERS
,IIF
(
[Measures].[Amount Lost] >= 1 AND [Measures].[Amount Lost] <= 99
,1
,null
)
)
MEMBER [Measures].[1-99_Amount] AS
Sum
(
[Scam].[Scam Ref].ALLMEMBERS
,IIF
(
[Measures].[Amount Lost] >= 1 AND [Measures].[Amount Lost] <= 99
,[Measures].[Amount Lost]
,null
)
)
SELECT
{
[Measures].[1-99_Count]
,[Measures].[1-99_Amount]
} ON COLUMNS
,[First Resolved On Date].[Month].[Month] ON ROWS
FROM [Infocentre]
WHERE
(
[First Resolved On Date].[Date].[Date].&[20140101]
:
[First Resolved On Date].[Date].[Date].&[20150623]
,[Scam].[Scam Category Level1].&[{d9d6bc38-e73e-e411-9a82-0a713f2121f7}]
);