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Understanding and Using APPLY (Part 2)
51 posts, Page 2 of 6
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Understanding and Using APPLY (Part 2)
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ckuroda
ckuroda
Posted Monday, April 19, 2010 9:40 AM
SSC Rookie
Group: General Forum Members
Last Login: Friday, November 02, 2012 7:00 AM
Points: 40,
Visits: 65
This is an excellent follow up to the first article. In the example for displaying a comma separated values list of all the test scores for each student, could you have also used the coalesce function to prevent the first comma in the output?
Post #906097
SQLRNNR
SQLRNNR
Posted Monday, April 19, 2010 10:46 AM
SSCoach
Group: General Forum Members
Last Login: 2 days ago @ 1:07 PM
Points: 18,733,
Visits: 12,332
Paul White NZ (4/18/2010)
I would like to express my sincere thanks to the following people, for their help in producing this article:
Amanda Lawrence
Jeff Moden MVP
Chris Morris
Lutz Müller
Jason Brimhall
Paul
You're welcome.
It is a good article - and it was a pleasure to help.
Jason
AKA CirqueDeSQLeil
I have given a name to my pain...
MCM SQL Server 2008
SQL RNNR
Posting Performance Based Questions - Gail Shaw
Posting Data Etiquette - Jeff Moden
Hidden RBAR - Jeff Moden
VLFs and the Tran Log - Kimberly Tripp
Post #906159
Steve Jones - SSC Editor
Steve Jones - SSC Editor
Posted Monday, April 19, 2010 11:38 AM
SSC-Dedicated
Group: Administrators
Last Login: Today @ 3:26 PM
Points: 31,425,
Visits: 13,738
Excellent job, Paul. It helped me learn a few things about a command I rarely use.
Follow me on Twitter:
@way0utwest
Forum Etiquette: How to post data/code on a forum to get the best help
Post #906217
LutzM
LutzM
Posted Monday, April 19, 2010 3:49 PM
SSCertifiable
Group: General Forum Members
Last Login: Wednesday, April 24, 2013 3:17 PM
Points: 6,731,
Visits: 12,131
Great article series, Paul!
It was a pleasure being selected to get a preview and to give some thoughts/comments.
Let's see how long it takes until I have referenced those two articles more often then I did Jeffs CrossTab/DynamicCrossTab
Lutz
A pessimist is an optimist with experience.
How to get fast answers to your question
How to post performance related questions
Links for
Tally Table
,
Cross Tabs
and
Dynamic Cross Tabs
,
Delimited Split Function
Post #906387
UMG Developer
UMG Developer
Posted Monday, April 19, 2010 3:52 PM
SSCrazy
Group: General Forum Members
Last Login: Monday, May 13, 2013 11:21 AM
Points: 2,163,
Visits: 2,148
Paul, Wow, thanks for these two articles they really helped me understand better use of APPLY. Now if I can just remember all of that I think I will use it a lot more.
Thanks again!
Post #906389
Paul White
Paul White
Posted Monday, April 19, 2010 5:24 PM
SSChampion
Group: General Forum Members
Last Login: Yesterday @ 7:18 PM
Points: 10,989,
Visits: 10,532
Mike and Green Clay:
Yes the ORDER BY in the CROSS JOIN example should be as you say - oddly it is only the image in the article that has this typo, the downloadable code is correct.
Paul
Paul White
SQL Server MVP
SQLblog.com
@SQL_Kiwi
Post #906410
RBarryYoung
RBarryYoung
Posted Monday, April 19, 2010 7:40 PM
SSCrazy Eights
Group: General Forum Members
Last Login: Saturday, May 04, 2013 11:13 AM
Points: 9,855,
Visits: 9,374
More great stuff Paul, thanks!
-- RBarryYoung
,
(302)375-0451
blog:
MovingSQL.com
, Twitter:
@RBarryYoung
Proactive
Performance Solutions, Inc.
"Performance is our middle name."
Post #906449
Josep
Josep
Posted Tuesday, April 20, 2010 2:00 AM
SSC-Enthusiastic
Group: General Forum Members
Last Login: Wednesday, May 08, 2013 1:35 AM
Points: 139,
Visits: 4,605
Thank you Paul!
You post it just when I needed to use the CROSS APPLY to process a XML file
Post #906604
spaghettidba
spaghettidba
Posted Tuesday, April 20, 2010 2:42 AM
SSCarpal Tunnel
Group: General Forum Members
Last Login: Today @ 6:45 AM
Points: 4,804,
Visits: 8,068
Always great stuff from you, Paul.
Well done.
Get your two-cent-answer quickly
The Spaghetti DBA
Post #906630
L' Eomot Inversé
L' Eomot Inversé
Posted Tuesday, April 20, 2010 8:49 PM
SSCertifiable
Group: General Forum Members
Last Login: Today @ 3:07 PM
Points: 7,096,
Visits: 7,156
Nice article, Paul. With this and the previous one I think I'm beginning to understand apply (a feature I haven't yet used, but probably will sometime soon now that you have shown me how it can be used to express things in a nice clean modular fashion).
Tom
Que conclure à la fin de tous mes longs propos? C'est que les préjugés sont la raison des sots. (Voltaire, 1756)
Post #907389
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