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SQL Performance (MOSC)

Hash join vs Nested Loop using PK

Apr 21, 2013 11:16PM edited May 23, 2013 12:44AM in SQL Performance (MOSC) 7 commentsAnswered

Hi,

I would like to know what is recommended to join 2 huge tables :

- Nested loop join using PK (UNIQUE SCAN) between 2 huge tables.

OR

- Hash join with FULL SCAN for each huge table.

Best regards.

GD.

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