SQL to MDX Where IN clause - ssas

Question

I have a situation where I need to formulate an MDX query.The corresponding SQL query would look something like:
SELECT no_of_downloads
FROM table_1
WHERE project_code IN ('abc', 'def', 'ghi' , .....)
I have the following MDX query formulated but i can only use it for one project code at a time.
SELECT
[Measures].[#Activity] ON COLUMNS
,Filter
(
[Organisation Dimension].[Txt Project Code].MEMBERS
,
[Organisation Dimension].[Txt Project Code].CurrentMember.Name = 'KM_BNG'
) ON ROWS
FROM [Activity Cube]
WHERE
(
[Activity Dimension].[Txt Activity Name].&[Download]
,[System Dimension].[Txt System Name].&[KShop] //ENTER CODE HERE//
,[Time Dimension].[Fiscal Hierarchy].[Fiscal Half Year Name].&[2014-04-01T00:00:00]
);
How to add more project codes in the list?

Answer 1

or if you're really keen to use the WHERE clause then just move the SET created by FrankPI into the WHERE clause.
The WHEREclause is conceptually an axis and as a rule of MDX is that the same hierarchy cannot be placed on more than one axis you will need to move it from ROWS like this:
SELECT
[Measures].[#Activity] ON 0
FROM [Activity Cube]
WHERE
(
[Activity Dimension].[Txt Activity Name].&[Download]
,[System Dimension].[Txt System Name].&[KShop]
,{
[Organisation Dimension].[Txt Project Code].[KM_BNG],
[Organisation Dimension].[Txt Project Code].[other name],
[Organisation Dimension].[Txt Project Code].[third name]
}
,[Time Dimension].[Fiscal Hierarchy].[Fiscal Half Year Name].&[2014-04-01T00:00:00]
);
In the extreme case where you have 50 members of the hierarchy [Organisation Dimension].[Txt Project Code] that you want to include then it might be better managed in the cube script. You could create a set [myTxtProjectCodes] and then the MDX would be a lot simpler:
SELECT
[Measures].[#Activity] ON 0
FROM [Activity Cube]
WHERE
(
[Activity Dimension].[Txt Activity Name].&[Download]
,[System Dimension].[Txt System Name].&[KShop]
,{
[myTxtProjectCodes]
}
,[Time Dimension].[Fiscal Hierarchy].[Fiscal Half Year Name].&[2014-04-01T00:00:00]
);

Answer 2

You do not need filters, you just can enumerate the members in the ON ROWS clause in curly braces:
SELECT [Measures].[#Activity]
ON COLUMNS ,
{
[Organisation Dimension].[Txt Project Code].[KM_BNG],
[Organisation Dimension].[Txt Project Code].[other name],
[Organisation Dimension].[Txt Project Code].[third name]
}
ON ROWS
...