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BitShift
Yak Posting Veteran
98 Posts |
 Posted - 2007-03-27 : 10:20:09
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| If you do something like:declare @fred char(10)select @fred = (select top 1 fieldhere from some table where ... order by ... desc)Does this use the temp db ? |
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nr
SQLTeam MVY
12543 Posts |
Posted - 2007-03-27 : 10:22:15
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| It might use tempdb to do the order by unless it can use an index for it.==========================================Cursors are useful if you don't know sql.DTS can be used in a similar way.Beer is not cold and it isn't fizzy. |
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SwePeso
Patron Saint of Lost Yaks
30421 Posts |
Posted - 2007-03-27 : 10:23:02
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| Why not select top 1 @fred = fieldhere from some table where ... order by ... descPeter LarssonHelsingborg, Sweden |
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X002548
Not Just a Number
15586 Posts |
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Lamprey
Master Smack Fu Yak Hacker
4614 Posts |
Posted - 2007-03-27 : 15:10:25
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quote:
Originally posted by X002548
I think the answer is it would most likely use memory...table variables use memory
If they are small enough to be held in memory. ;) |
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dinakar
Master Smack Fu Yak Hacker
2507 Posts |
Posted - 2007-03-27 : 16:10:24
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| AFAIK, TOP/ORDER BY definetely uses tempdb to do the sort.************************Life is short. Enjoy it.************************ |
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does selecting a local variable hit the temp db ?