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Which of the following clause makes a query cost-effective ?
Posted by
Bandi
on 9/30/2013 | Category:
Sql Server Interview questions
| Views: 2738 |
Points: 40
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Select from following answers:
NOT IN
EXCEPT
NOT EXISTS
LEFT JOIN
All Above
By comparing all of the above clauses in SELECT query "NOT EXISTS" will make a query as cost-effective.
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