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Tally OH! An Improved SQL 8K “CSV Splitter” Function Expand / Collapse
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Posted Sunday, May 1, 2011 9:02 AM


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Comments posted to this topic are about the item Tally OH! An Improved SQL 8K “CSV Splitter” Function

--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."

(play on words) "Just because you CAN do something in T-SQL, doesn't mean you SHOULDN'T." --22 Aug 2013

Helpful Links:
How to post code problems
How to post performance problems
Post #1101315
Posted Sunday, May 1, 2011 2:04 PM


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Jeff, I had to rate this article 5 stars, because that's as high as the ratings allow. It deserves a 15!

BTW, I'm aghast --- you've actually used a SQL CLR now! It would be nice if we could get Paul to contribute it, and to have it added to the resources of this article.

Again, excellent job. Extremely well done, and extremely thorough. Thank you so much for this article, and for the new DelimitedSplit8K function.


Wayne
Microsoft Certified Master: SQL Server 2008
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: For better assistance in answering your questions, How to ask a question, Performance Problems, Common date/time routines,
CROSS-TABS and PIVOT tables Part 1 & Part 2, Using APPLY Part 1 & Part 2, Splitting Delimited Strings
Post #1101374
Posted Sunday, May 1, 2011 3:08 PM


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Thanks Jeff. It's great to walk with you through your beer-popsicle thought process, and for all the work you did here.

I thought I was the only one who would sit in the corner with the dust bunnies....

I still want to shoot CLR though.



- Craig Farrell

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Post #1101385
Posted Sunday, May 1, 2011 3:16 PM


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WayneS (5/1/2011)
Jeff, I had to rate this article 5 stars, because that's as high as the ratings allow. It deserves a 15!

BTW, I'm aghast --- you've actually used a SQL CLR now! It would be nice if we could get Paul to contribute it, and to have it added to the resources of this article.

Again, excellent job. Extremely well done, and extremely thorough. Thank you so much for this article, and for the new DelimitedSplit8K function.


I couldn't have done it without the help of you, Ron, and Paul. All 3 of you did some awesome work with testing and verification of the code. You guys ROCK!

So far as the CLR goes... yeah, I know I stuck my toe into the other world, but I had to know if the new function even came close. Paul was very cool in his understanding that I don't even know how to spell "C" and he made it real easy for me to install.


--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."

(play on words) "Just because you CAN do something in T-SQL, doesn't mean you SHOULDN'T." --22 Aug 2013

Helpful Links:
How to post code problems
How to post performance problems
Post #1101389
Posted Sunday, May 1, 2011 3:19 PM


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Craig Farrell (5/1/2011)
Thanks Jeff. It's great to walk with you through your beer-popsicle thought process, and for all the work you did here.

I thought I was the only one who would sit in the corner with the dust bunnies....

I still want to shoot CLR though.


Heh... dust bunnies know so much! Thanks for the feedback, Craig.


--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."

(play on words) "Just because you CAN do something in T-SQL, doesn't mean you SHOULDN'T." --22 Aug 2013

Helpful Links:
How to post code problems
How to post performance problems
Post #1101392
Posted Sunday, May 1, 2011 4:01 PM


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WayneS (5/1/2011)
Jeff, I had to rate this article 5 stars, because that's as high as the ratings allow. It deserves a 15!

BTW, I'm aghast --- you've actually used a SQL CLR now! It would be nice if we could get Paul to contribute it, and to have it added to the resources of this article.

Again, excellent job. Extremely well done, and extremely thorough. Thank you so much for this article, and for the new DelimitedSplit8K function.


Jeff let me second WayneS statement.... and add it was an honor and privilege to work for you on the testing.


If everything seems to be going well, you have obviously overlooked something.

Ron

Please help us, help you -before posting a question please read

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Post #1101401
Posted Sunday, May 1, 2011 4:50 PM


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bitbucket-25253 (5/1/2011)
WayneS (5/1/2011)
Jeff, I had to rate this article 5 stars, because that's as high as the ratings allow. It deserves a 15!

BTW, I'm aghast --- you've actually used a SQL CLR now! It would be nice if we could get Paul to contribute it, and to have it added to the resources of this article.

Again, excellent job. Extremely well done, and extremely thorough. Thank you so much for this article, and for the new DelimitedSplit8K function.


Jeff let me second WayneS statement.... and add it was an honor and privilege to work for you on the testing.


Thanks for all the help testing, Ron. You did a great job. Heh... and no dust bunnies where actually injured during any of the tests.


--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."

(play on words) "Just because you CAN do something in T-SQL, doesn't mean you SHOULDN'T." --22 Aug 2013

Helpful Links:
How to post code problems
How to post performance problems
Post #1101407
Posted Sunday, May 1, 2011 9:19 PM


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Very thorough analysis. Great job!

Take care,
Solomon...





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Posted Monday, May 2, 2011 2:56 AM


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Solomon Rutzky (5/1/2011)
Very thorough analysis. Great job!

Take care,
Solomon...


But it seems at least a week long activity !!!


Goodish!
Post #1101466
Posted Monday, May 2, 2011 3:05 AM
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All these methods use CHARINDEX to efficiently see where the next delimiter is. But what about handling CSV strings with quoted text, e.g. where "John Smith","23, The High Street","Sometown" has to be split into 3 strings? Do you have a good method for this sort of data?

(This is why I prefer tab separated to comma separated, with all its different ways to handle embedded comas, but usually you have to process the client's data as they give it to you, not as you'd like it )
Post #1101471
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