Why is Sqoop highly dependent upon the primary keys of the RDBMS?

1.	Why is Sqoop highly dependent upon the primary keys of the RDBMS?
Answer» Why is Sqoop highly dependent UPON the PRIMARY keys of the RDBMS? Choose the correct option from below list (1)There is no work (2)The lack of primary NUMERIC key will increase the likelihood of undesired results (3)The primary key will speed up indexing (4)NONE of the options Answer:-(3)The primary key will speed up indexing

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