How do I reference multiple tables in SSAS Data Source View Named Calculation functionality?

Hi SSASers -
On the Data Source View node of SSAS Visual Studio Interface, I want to create a named calculation that references multiple tables. Something like: CASE WHEN tableA.Column1 = 'Y' Then tableB.Column1 ELSE tableB.Column2 End, but the compiler throws an error
here "Deferred prepare could not be completed".
What is the syntax for referencing multiple tables on this node or how else can multiple tables be used to create a calculated value in SSAS? I'm new to SSAS and so far have been building big views and building calculations this way. Another option is the
Calculation tab off the cube node but this calculation will need to be based off of dimensions AND measures so please provide a syntax example here also.
Thanks in advance!
Carl

Thanks Jiri! The named query functionality off the Data Source View node is exactly what I was looking for - it's just a view on the SSAS side of things instead of the relational dbase.
Sorry for the delayed answer verification - got pulled into something else last week. Carl
Carl

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How do I reference multiple tables in SSAS Data Source View Named Calculation functionality?

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