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You are optimizing several complex queries. You have determined that you can improve performance by concatenating UNION sets.
Which of the following query hints should you use to implement this optimization?
on 6/30/2013 | Category:
Sql Server Interview questions
| Views: 1440 |
Select from following answers:
CONCAT UNION query hint option specifies that all UNION operations will be performed by concatenating UNION sets.
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