Time and date dimension in data warehouse

Posted by peperg on Stack Overflow See other posts from Stack Overflow or by peperg
Published on 2010-03-24T11:44:02Z Indexed on 2010/03/24 12:03 UTC
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data-warehouse

I'm buildind an data warehouse. Each fact has it's timestamp. I need to create reports by day, month, quater but by hours too. Loking at the examples I see that dates tend to be saved in dimension tabels. alt starexample

But I think, that it makes no sense for time. The dimension table would grow and grow. On the other hand JOIN with date dimension table is more efficent than using date/time functions in SQL.

What are your opinions/solutions ?

(I'm using Infobright)

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Developer IT

Time and date dimension in data warehouse - Developer IT

Time and date dimension in data warehouse

data-warehouse

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Time and date dimension in data warehouse

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