| anil |
Posted: Apr 14, 2008 03:52:37 PM |
Total Post: 27
Joined: Dec, 2007
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| what is the difference between distinct and group by and which one is work faster if we use those keyword in a query? |
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 Mohammed Taj |
| Posted: Apr 15, 2008 12:55:16 AM |  |
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Total Post: 704
Joined: Jul, 2007
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Distinct or Group by both keyword is use for different different purpose.
1. Distinct give us Unique value from column
2. Group by give us group set of specified column.
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| Murtuja |
| Posted: Apr 15, 2008 02:47:15 AM | |
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Total Post: 815
Joined: Jan, 2006
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Hi,
If you simply want to select distinct records then you can use "group by" as alternate to "Distinct".And in such query there is no difference, you can compare execution plan.
http://awads.net/wp/2006/03/08/an-alternative-to-distinct/
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| Mohammed Taj |
| Posted: Apr 15, 2008 11:07:33 AM | |
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Total Post: 704
Joined: Jul, 2007
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Good,
I learnt new thing today :)
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