If you're using a normal database and not an SSAS cube, then you can use a Calendar table. Here's the article on it: http://www.sqlservercentral.com/articles/T-SQL/70482/
Basically, the Calendar table has a series of dates, and a bunch of other derived columns (hey, they're static data you can filter on!) you just join from your table to the date key in the Calendar table and then away you go!
"It Depends". I find that some simple formulas are, many times, much faster, shorter, and easier to write than using Calendar Tables.
is pronounced ree-bar and is a Modenism for R
First step towards the paradigm shift of writing Set Based code: Stop thinking about what you want to do to a row... think, instead, of what you want to do to a column.
Although they tell us that they want it real bad, our primary goal is to ensure that we dont actually give it to them that way.
Although change is inevitable, change for the better is not.
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