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 Dimension Hierahchy		  New Topic  Reply to Topic
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Oliver wang
Starting Member

China
49 Posts
Posted - 07/14/2012 :  10:31:21  Show Profile  Reply with Quote
Hello everyone,

I was doing a SSAS test using "AdventureworksDW2008". I chose table "dbo.dimdate" as a dimension and created an hierarchy whose structure is as below:
Calendar Year
Calendar Semester
Calendar Quarter
Month number of Year
Day number of Month

when I processed this Dim at this time, everything was working fine. Bur if I add attribute relationships as below:
DateKey->Day number of Month->Month number of Year->Calendar Quarter->Calendar Semester->Calendar Year, when I processed again, it was giving me an error stating "Errors in the OLAP storage engine: A duplicate attribute key has been found when processing: Table: 'dbo_DimDate', Column: 'CalendarSemester', Value: '2'. The attribute is 'Calendar Semester'."

Could anyone give me some advice on this? Thank you very much.

regards,

Oliver

nigelrivett
Flowing Fount of Yak Knowledge

United Kingdom
3328 Posts
Posted - 07/16/2012 :  04:13:06  Show Profile  Visit nigelrivett's Homepage  Reply with Quote
It's because you have the same calendar semester under different calendar years. (Think it's that way round)
You can get round this by concatenating the year with the semester for the hierarchy value but using just the semester for the display value. Think yoou will have the same issue with other columns as you are trying to define a strict hierarchy.

==========================================
Cursors are useful if you don't know sql.
SSIS can be used in a similar way.
Beer is not cold and it isn't fizzy.
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Oliver wang
Starting Member

China
49 Posts
Posted - 07/17/2012 :  10:01:01  Show Profile  Reply with Quote
Thank you very much for your advice, nigelrivett.
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