1z0-071 Exam Dumps | Which two are true about the MERGE statement?

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Question 107/139

Which two are true about the MERGE statement?

A. The WHEN NOT MATCHED clause can be used to specify the deletions to be performed.

B. The WHEN NOT MATCHED clause can be used to specify the inserts to be performed.

C. The WHEN MATCHED clause can be used to specify the inserts to be performed.

D. The WHEN NOT MATCHED clause can be used to specify the updates to be performed.

E. The WHEN MATCHED clause can be used to specify the updates to be performed.

Correct Answer: B,E

The correct answers regarding the MERGE statement are:
* B. The WHEN NOT MATCHED clause can be used to specify the inserts to be performed. This is true. When a row from the source does not match any row in the target, the WHEN NOT MATCHED clause is where you specify the insert operation.
* E. The WHEN MATCHED clause can be used to specify the updates to be performed. This is true as well. The WHEN MATCHED clause is where you specify the update (or delete) operation to be performed when the source and target rows match.
Options A, C, and D are incorrect:
* A is incorrect because WHEN NOT MATCHED does not handle deletions, it is for inserts.
* C is incorrect as inserts are not specified in the WHEN MATCHED clause but in the WHEN NOT MATCHED clause.
* D is incorrect because updates are specified in the WHEN MATCHED clause, not the WHEN NOT MATCHED clause.

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