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我有一个“动作”立方体。维度是“时间”和“动作 ID”，测量是“动作数量”和“总时间”以及计算的测量“平均动作时间”。我正在尝试按平均时间计算前 5 个操作，并显示前一天的变化。我可以在两个单独的查询中做到这一点：

SELECT {[Measures].[Avg Action Time]} ON COLUMNS,
NON EMPTY TopCount( except([Action ID].members, {[Action ID].[All Action IDs]}), 5, [Measures].[Avg Action Time]) ON ROWS
FROM Actions
WHERE [Time].[2005].[1];

和：

WITH MEMBER [Measures].[Change] AS
([Time].CurrentMember, [Measures].[Number of Actions]) / (ParallelPeriod ([Day], 1, [Time].CurrentMember), [Measures].[Number of Actions]),
FORMAT_STRING = 'Percent'
SELECT [Measures].[Change] on COLUMNS,
NON EMPTY [Time].[2005].[1].children on ROWS
FROM [Actions];

但我不知道如何将它们组合成一个 MDX 查询。我试过了：

WITH MEMBER [Measures].[Change] AS
([Time].CurrentMember, [Action ID].CurrentMember, [Measures].[Avg Action Time]) / (ParallelPeriod ([Day], 1, [Time].CurrentMember), [Action ID].CurrentMember, [Measures].[Avg Action Time]),
FORMAT_STRING = 'Percent'
SELECT {[Measures].[Avg Action Time], [Measures].[Change]} ON COLUMNS,
NON EMPTY TopCount( except([Action ID].members, {[Action ID].[All Action IDs]}), 5, [Measures].[Avg Action Time]) ON ROWS
FROM Actions
WHERE [Time].[2005].[1];

但是变化百分比总是无穷大，所以它显然不是在计算正确的东西。什么是正确的查询？

4

1 回答 1

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问题是我的事实表中没有足够的数据。此查询适用于不同的时间范围。

WITH MEMBER [Measures].[Change] AS 
([Time].CurrentMember, [Measures].[Number of Actions]) / (ParallelPeriod ([Day], 1, [Time].CurrentMember), [Measures].[Number of Actions]),
FORMAT_STRING = 'Percent'
SELECT {[Measures].[Avg Action Time], [Measures].[Change]} ON COLUMNS,
NON EMPTY TopCount( except([Action ID].members, {[Action ID].[All Action IDs]}), 5, [Measures].[Avg Action Time]) ON ROWS
FROM Actions
WHERE [Time].[2005].[1].[2];
于 2010-01-12T07:08:56.617 回答