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random randomise randomize data query
random randomise randomize data query
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Chris Morton
Chris Morton
Posted Wednesday, November 26, 2008 8:48 AM
Valued Member
Group: General Forum Members
Last Login: Wednesday, December 16, 2009 9:20 AM
Points: 51,
Visits: 127
Comments posted to this topic are about the item
random randomise randomize data query
Post #609185
Jeff Moden
Jeff Moden
Posted Wednesday, November 26, 2008 10:17 PM
SSChampion
Group: General Forum Members
Last Login: Today @ 9:01 PM
Points: 20,164,
Visits: 13,702
Yep... try getting the TOP 10 random rows from a big table that way... hell to pay for performance. Be careful how you use it for that reason.
--Jeff Moden
"
RBAR
is pronounced "ree-bar" and is a "Modenism" for "
R
ow-
B
y-
A
gonizing-
R
ow".
"Data isn't the only thing that's supposed to have Integrity."
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."
For better, quicker answers on T-SQL questions, click on the following...
http://www.sqlservercentral.com/articles/Best+Practices/61537/
For better answers on performance questions, click on the following...
http://www.sqlservercentral.com/articles/SQLServerCentral/66909/
Post #609560
Chris Morton
Chris Morton
Posted Tuesday, December 02, 2008 12:35 AM
Valued Member
Group: General Forum Members
Last Login: Wednesday, December 16, 2009 9:20 AM
Points: 51,
Visits: 127
i have another methodology for that one. i will submit it soon as i get back to work.
Post #611848
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