TSQL Logic help needed-- Nested IF

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TSQL Logic help needed-- Nested IF

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Jeff Moden SSC Guru Points: 1004364 More actions · Answer 1

David Burrows (4/21/2011)
Jeff Moden (4/20/2011)
If we don't know the length, then we can force the max length for positive BIGINTs and simply remove all spaces afterwards.
Also if you append the separator to the cast instead of prefixing, you don't need the stuff 😛

Great idea! It also converts the totally NULL lines to empty strings which may be a benefit for additional processing.

--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.

Helpful Links:
How to post code problems
How to Post Performance Problems
Create a Tally Function (fnTally)

Jeff Moden SSC Guru Points: 1004364 More actions · Answer 2

David Burrows (4/21/2011)
ChrisM@home (4/21/2011)
Evolution in practice - don't you just love it 😀
It is darn near impossible to improve on Jeff's solutions, so must make the most of it while I can 😀

Thanks guys. :blush: Wish I could take credit for this one but Jason's suggestion is what brought this one out. 🙂

--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.

Helpful Links:
How to post code problems
How to Post Performance Problems
Create a Tally Function (fnTally)

Jeff Moden SSC Guru Points: 1004364 More actions · Answer 3

ChrisM@home (4/21/2011)
David Burrows (4/21/2011)
Jeff Moden (4/20/2011)
If we don't know the length, then we can force the max length for positive BIGINTs and simply remove all spaces afterwards.
Also if you append the separator to the cast instead of prefixing, you don't need the stuff 😛
Evolution in practice - don't you just love it 😀

That's why I love this place. 🙂 This particular type of problem is more common that I care to admit and I've seen all manner of code to solve it but nothing this simple. Jason's ephiphany was spot on.

--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.

Helpful Links:
How to post code problems
How to Post Performance Problems
Create a Tally Function (fnTally)

Jason Selburg SSC-Insane Points: 24641 More actions · Answer 4

Jeff Moden (4/21/2011)
ChrisM@home (4/21/2011)
David Burrows (4/21/2011)
Jeff Moden (4/20/2011)
If we don't know the length, then we can force the max length for positive BIGINTs and simply remove all spaces afterwards.
Also if you append the separator to the cast instead of prefixing, you don't need the stuff 😛
Evolution in practice - don't you just love it 😀
That's why I love this place. 🙂 This particular type of problem is more common that I care to admit and I've seen all manner of code to solve it but nothing this simple. Jason's ephiphany was spot on.

Stop it Jeff, you're making me blush.. LOL

Nothing remarkable here.

Sometimes it's just best to take a step back. Just like they say "If you can't see the forest for the trees, cut the darned things down!"

______________________________________________________________________

Personal Motto: Why push the envelope when you can just open it?

If you follow the direction given HERE[/url] you'll likely increase the number and quality of responses you get to your question.

Jason L. Selburg

WayneS SSC Guru Points: 95460 More actions · Answer 5

Good job Jason! (Heck, I really did like my solution, but this is so much better.)

Wayne
Microsoft Certified Master: SQL Server 2008
Author - SQL Server T-SQL Recipes

If you can't explain to another person how the code that you're copying from the internet works, then DON'T USE IT on a production system! After all, you will be the one supporting it!

Links:
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