Too many Snowflakes or Outriggers?
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Too many Snowflakes or Outriggers?
Hi All,
I am facing an issue in my Star Schema design. I have classified a lot of tables of my logical model into either dimension or fact. Now, there are a lot of tables that are not facts but give more details about my primary dimension.
For ex, I have a Study Dimension that has details of Study. Now, consider the following tables:
Study Statements (1 Study - Multiple Statements)
Study Visitors (1 Study - Multiple Visitors)
There are about 10 tables that store multiple records for a Study along with date when that was stored in source system. How should i model such 1:N relationship between dimension tables?
Do i combine 4 or 5 tables together? There is no relationship between them but I dont want to add so much of content in Study dimension.
I am facing an issue in my Star Schema design. I have classified a lot of tables of my logical model into either dimension or fact. Now, there are a lot of tables that are not facts but give more details about my primary dimension.
For ex, I have a Study Dimension that has details of Study. Now, consider the following tables:
Study Statements (1 Study - Multiple Statements)
Study Visitors (1 Study - Multiple Visitors)
There are about 10 tables that store multiple records for a Study along with date when that was stored in source system. How should i model such 1:N relationship between dimension tables?
Do i combine 4 or 5 tables together? There is no relationship between them but I dont want to add so much of content in Study dimension.
coffee_maker- Posts : 2
Join date : 2013-06-11
Re: Too many Snowflakes or Outriggers?
Hi coffee_maker,
They sound like Facts to me, with conformed dimensions of Study and Date. Perhaps the only measures would be Counts?
Good luck!
Mike
They sound like Facts to me, with conformed dimensions of Study and Date. Perhaps the only measures would be Counts?
Good luck!
Mike
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