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POSelect average sales count over 3 month period in MDX
 

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  1. POSelect average sales count over 3 month period in MDX
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    <p>I have a problem with the following query:</p> <p>Month to month comparison. Compare the sales of a current month with three other numbers: a. The previous month. b. The average of the previous three months. c. The average of the three month period before the previous 3 months.</p> <p>Here is the structure of the database/cube: <img src="https://i.stack.imgur.com/5tTXh.jpg" alt="enter image description here"></p> <pre><code>WITH MEMBER [Measures].[Current Month] AS [Measures].[PIZZA SALES Count] MEMBER [Measures].[Previous Month] AS AVG({[PIZZA SALES].[Time ID].Children * [TIME]. [Month].CurrentMember.lag(1)},[Measures].[PIZZA SALES Count]]) MEMBER [Measures].[3 Months] AS ((AVG({[PIZZA SALES].[Time ID].Children * [TIME]. [Month].CurrentMember.lag(1)},[Measures].[PIZZA SALES Count]]) + AVG({[PIZZA SALES].[Time ID].Children * [TIME]. [Month].CurrentMember.lag(2)},[Measures].[PIZZA SALES Count]]) + AVG({[PIZZA SALES].[Time ID].Children * [TIME]. [Month].CurrentMember.lag(3)},[Measures].[PIZZA SALES Count]]))/3) MEMBER [Measures].[6 Months] AS ((AVG({[PIZZA SALES].[Time ID].Children * [TIME]. [Month].CurrentMember.lag(4)},[Measures].[PIZZA SALES Count]]) + AVG({[PIZZA SALES].[Time ID].Children * [TIME]. [Month].CurrentMember.lag(5)},[Measures].[PIZZA SALES Count]]) + AVG({[PIZZA SALES].[Time ID].Children * [TIME]. [Month].CurrentMember.lag(6)},[Measures].[PIZZA SALES Count]]))/3) SELECT { [Measures].[Current Month], [Measures].[Previous Month], [Measures].[3 Months], [Measures].[6 Months] } ON COLUMNS, { [TIME].[Month].&amp;[12] } ON ROWS FROM [Pizza Place Cube]; </code></pre> <p>The result from this query is as follows: <img src="https://i.stack.imgur.com/nyuwq.jpg" alt="enter image description here"></p> <p>The following SQL Script returns the corrects results:</p> <pre><code>SELECT (SELECT COUNT(*) FROM PIZZA_SALES WHERE TimeID IN ( SELECT TimeID FROM TIME WHERE Month = (SELECT Month FROM TIME WHERE TIMEID = ((SELECT MAX(TimeID) FROM PIZZA_SALES))) AND Year = (SELECT Year FROM TIME WHERE TIMEID = (SELECT MAX(TimeID) FROM PIZZA_SALES)))) AS 'CURRENT MONTH', (SELECT COUNT(*) FROM PIZZA_SALES WHERE TimeID IN ( SELECT TimeID FROM TIME WHERE Month = (SELECT Month FROM TIME WHERE TIMEID = ((SELECT MAX(TimeID) FROM PIZZA_SALES)))-1 AND Year = (SELECT Year FROM TIME WHERE TIMEID = (SELECT MAX(TimeID) FROM PIZZA_SALES)))) AS 'PREVIOUS MONTH', (SELECT COUNT(*)/3 FROM PIZZA_SALES WHERE TimeID IN ( SELECT TimeID FROM TIME WHERE Year = (SELECT Year FROM TIME WHERE TIMEID = (SELECT MAX(TimeID) FROM PIZZA_SALES)) AND (Month = (SELECT Month FROM TIME WHERE TIMEID = ((SELECT MAX(TimeID) FROM PIZZA_SALES)))-1 OR Month = (SELECT Month FROM TIME WHERE TIMEID = ((SELECT MAX(TimeID) FROM PIZZA_SALES)))-2 OR Month = (SELECT Month FROM TIME WHERE TIMEID = ((SELECT MAX(TimeID) FROM PIZZA_SALES)))-3))) AS '3 MONTHS', (SELECT COUNT(*)/3 FROM PIZZA_SALES WHERE TimeID IN ( SELECT TimeID FROM TIME WHERE Year = (SELECT Year FROM TIME WHERE TIMEID = (SELECT MAX(TimeID) FROM PIZZA_SALES)) AND (Month = (SELECT Month FROM TIME WHERE TIMEID = ((SELECT MAX(TimeID) FROM PIZZA_SALES)))-4 OR Month = (SELECT Month FROM TIME WHERE TIMEID = ((SELECT MAX(TimeID) FROM PIZZA_SALES)))-5 OR Month = (SELECT Month FROM TIME WHERE TIMEID = ((SELECT MAX(TimeID) FROM PIZZA_SALES)))-6))) AS '6 MONTHS'; </code></pre> <p>The desired results as returned by the SQL query are as follows: <img src="https://i.stack.imgur.com/rP6W3.jpg" alt="enter image description here"></p> <p>Pleas help, I have tried many different sollutions on the internet, however they do not return the correct results.</p>
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    1. COIt seems that your results aren't shown in the question. Can you simplify the question to just start by comparing between current and *one* prior month, and then expand it to the averages?
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      1. POSelect average sales count over 3 month period in MDX
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    2. COThe MDX query should return a:the sales of the current month, b: the sales of the previous month and c: the average of the last the months. The last part (d) should return results similar to (c) but for the 3 month period before the last 3 months.
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