Database - Distributed Databases - Discussion

Discussion :: Distributed Databases - General Questions (Q.No.12)

12. 

A semijoin is which of the following?

[A]. Only the joining attributes are sent from one site to another and then all of the rows are returned.
[B]. All of the attributes are sent from one site to another and then only the required rows are returned.
[C]. Only the joining attributes are sent from one site to another and then only the required rows are returned.
[D]. All of the attributes are sent from one site to another and then only the required rows are returned.

Answer: Option C

Explanation:

No answer description available for this question.

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