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pramod21
Yak Posting Veteran
64 Posts |
 Posted - 2012-08-27 : 05:36:18
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| Hi,what will happend if i'm crating a clustered index on a column which alredy has nonclustered index???will it affect performance??thnx.. |
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nigelrivett
Master Smack Fu Yak Hacker
3385 Posts |
Posted - 2012-08-27 : 05:39:36
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| It will reorder the data pages and recreate the non-clustered index.The non-clustered index will now include the clustered index columns (already there so no extra space) instead of the row reference.You should find the non-clustered index is smaller and hence faster to access.==========================================Cursors are useful if you don't know sql.SSIS can be used in a similar way.Beer is not cold and it isn't fizzy. |
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