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 return

Question

Quizplus · Accepted Answer

A semijoin involves sending only the joining attributes from one site to another, and then only the rows that meet the join condition are returned, making it more efficient in distributed database systems.

A Semijoin Is Which of the Following