Returning data from table based on date ranges

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Returning data from table based on date ranges

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Jeffrey Williams SSC Guru Points: 90303 More actions · Answer 1

Jeff Moden wrote:

@Jeffrey Williams...
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Due to your hard-coded offsets for the start of each quarter, what's going to happen on a Leap Year?

Nothing - the hard-coded offsets are actually the integer value for the dates in the year 1900. They are not the number of days from the beginning of a year - so taking the difference in years between 0 (1900-01-01) and @fromDate will result in adding xx years to 1900-03-25 (83).

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Although probably not likely but still entirely possible, what's going to happen if the difference between @FromDate and @ToDate exceeds 100 months?

You are correct - if the date range exceeds 8+ years then this function will not work correctly. It is easy enough to modify by adding another t table to the cross join to increase the range if needed.

Good comment on the start date issue for the quarter. I was going to hum a rock at the OP on that one but then saw your good comment.

Why not sling a pork-chop?

This reply was modified 4 years, 4 months ago by Jeffrey Williams.

Jeffrey Williams
“We are all faced with a series of great opportunities brilliantly disguised as impossible situations.”

― Charles R. Swindoll

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Jeff Moden SSC Guru Points: 1004356 More actions · Answer 2

Ah... understood on the offsets. Thanks, Jeff.

--Jeff Moden

RBAR is pronounced "ree-bar" and is a "Modenism" for Row-By-Agonizing-Row.
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.

Change is inevitable... Change for the better is not.

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sc-w Hall of Fame Points: 3667 More actions · Answer 3

Hi @Jeffrey Williams,

Wow, thank you for taking the time to put that together. I have tried it on my machine and it looks good. The production server this will run on is actually SQL 2008R2 so I think it will need tweaking to run on that as some of the functions are not compatible.

Thanks again to all who have looked and commented.

Jeffrey Williams SSC Guru Points: 90303 More actions · Answer 4

You can remove the CONCAT function or modify to use + to build that string. That column isn't used.

Jeffrey Williams
“We are all faced with a series of great opportunities brilliantly disguised as impossible situations.”

― Charles R. Swindoll

How to post questions to get better answers faster
Managing Transaction Logs