Joining the cube members in OBI

Question

Hi
I have got the following members in cube :
Years
--- 2007
---- 2008
---- 2009
Year
---- Quarter
----- Month
----- Day
and the other FACT members.
Now When I am importing the cube into OBI there would be two separate tables and drill down would be limited to each table like clicking on Years will give me 2007, 2008 and 2009 and clicking on Year will give me Q1, Q2,...Q4 clicking on Q1 will give Jan , Feb ..Mar.
Is it possible to join these two
In a nutshell ..there are two different heirarchies and I want to join both...so taht on clicking 2007 i will get Q1,Q2...and clicking on Q1...will get Jan ,Feb ...
Pls. help.

Answer 1

Hi nameless,
Ok well if your Gen2,Year really only contains the 4 members Q1 through Q4 then you can do the following (note that this is a simple model and will not reflect yours 100%):
Create a new logical table. E.g. "Total Time". Within that, create 4 new logical columns: Year, Quarter, Month and Day. Map them as follows:
Year = "Sample"."Sample".."Gen2,Years"
Quarter = "Sample"."Sample".."Gen2,Year"
Month = "Sample"."Sample".."Gen3,Year"
Day = "Sample"."Sample".."Gen4,Year"
Then create a new dimension, likewise called "Total Time". Create the 4 levels (grand total not necessarily needed, but you can use Gen1,Years for that of you'd like). Assign each logical column to its respective level Gen2,Years = Year = Year level; Gen4,Year = Day = Day level etc.
Set logical level keys and you're done. Expose in the presentation table and test. I haven't run through all combinations, but the concept works fine with an Essbase source since the MDX will get the numbers from the respective levels / data intersection points.
Cheers,
C.