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Discuss content posted by Dave Ballantyne
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Optimizing a cursor based routine – Part 2
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Optimizing a cursor based routine – Part 2
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Dave Ballantyne
Dave Ballantyne
Posted Monday, June 27, 2011 9:20 PM
SSCommitted
Group: General Forum Members
Last Login: Tuesday, May 28, 2013 3:05 AM
Points: 1,943,
Visits: 8,229
Comments posted to this topic are about the item
Optimizing a cursor based routine – Part 2
Clear Sky SQL
My Blog
Kent user group
Post #1132599
SQLRNNR
SQLRNNR
Posted Tuesday, June 28, 2011 9:55 AM
SSCoach
Group: General Forum Members
Last Login: Today @ 12:32 AM
Points: 18,855,
Visits: 12,439
Just to nitpick something. The adventureworks sales were understated by ~ $22M, not $28M.
Nice article Dave.
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 #1133016
ShawnTherrien
ShawnTherrien
Posted Tuesday, June 28, 2011 11:03 AM
Valued Member
Group: General Forum Members
Last Login: Tuesday, June 11, 2013 9:34 AM
Points: 68,
Visits: 656
Thank you.
I understand the topic of optimizing a cursor based routine pretty well and yet again another day comes where I learn how much more I have to learn. I can't wait to try out some of these techniques on some more complex reports!
Post #1133090
KWymore
KWymore
Posted Tuesday, June 28, 2011 11:56 AM
SSCrazy
Group: General Forum Members
Last Login: 2 days ago @ 6:13 AM
Points: 2,598,
Visits: 1,551
Very nice article. We have very few cursors but I have learned other performance improving tips from this article regardless.
Post #1133135
WayneS
WayneS
Posted Tuesday, June 28, 2011 4:18 PM
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Last Login: Yesterday @ 9:59 PM
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Good job Dave - very well written.
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 #1133318
spaghettidba
spaghettidba
Posted Tuesday, June 28, 2011 5:02 PM
SSCarpal Tunnel
Group: General Forum Members
Last Login: Yesterday @ 3:43 AM
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Top-notch contributions from you Dave, as usual!
Keep up the great job.
Get your two-cent-answer quickly
The Spaghetti DBA
Post #1133335
Dave Ballantyne
Dave Ballantyne
Posted Wednesday, June 29, 2011 2:54 AM
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Last Login: Tuesday, May 28, 2013 3:05 AM
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Thanks all,
Enjoyed doing it, now to find the next set of bad code to write about :)
Clear Sky SQL
My Blog
Kent user group
Post #1133501
CELKO
CELKO
Posted Wednesday, June 29, 2011 1:03 PM
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Last Login: Tuesday, January 15, 2013 11:11 AM
Points: 1,945,
Visits: 2,782
Dave Ballantyne (6/29/2011)
Thanks all,
Enjoyed doing it, now to find the next set of bad code to write about :)
Actually, you can go back to the DDL in this nightmare. Singular names for tables, vague names for columns, etc. Tables for the same data model split into different locations. My favor was "FROM Store.Store" -- I was waiting for a column "Store.Store.store" to complete the pain for the bastard that has to maintian this.
The idiot that did this thinks that a customer is an attribute of a store, and not in a relationship with the store. Etc. There is so little in this schema.
Basically this is an EAV and OO design mashed into SQL. You even have functions to mimic methods! Is it too much to ask that MS actually follow basic ISO standards and data modeling? Rant, rant.
Books in Celko Series for Morgan-Kaufmann Publishing
Analytics and OLAP in SQL
Data and Databases: Concepts in Practice
Data, Measurements and Standards in SQL
SQL for Smarties
SQL Programming Style
SQL Puzzles and Answers
Thinking in Sets
Trees and Hierarchies in SQL
Post #1134007
Dave Ballantyne
Dave Ballantyne
Posted Wednesday, June 29, 2011 1:17 PM
SSCommitted
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Last Login: Tuesday, May 28, 2013 3:05 AM
Points: 1,943,
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Something tells me you are not a fan of AdventureWorks Joe ;)
Clear Sky SQL
My Blog
Kent user group
Post #1134030
jerome.landis
jerome.landis
Posted Thursday, June 30, 2011 3:51 PM
Grasshopper
Group: General Forum Members
Last Login: Thursday, April 25, 2013 5:32 AM
Points: 13,
Visits: 54
Dave, excellent job with the post! Very informative and good example to demo the technology.
Big Question: Where can I find the AdventureWorks2008R2 database?
I was running it against the AdventureWorks database but some of the columns/tables are missing....
I have downloaded almost everything off codeplex, and I have found these databases:
1) adventureworks
2) adventureworksDW
3) adventureworksDW2008
4) adventureworksDW2008R2
5) adventureworksLT
6) adventureworksLT2008R2
But no database named "AdventureWorks2008R2"?
Post #1134752
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