1807. Bulk insert — CRM — implementation variant 7

DBMS Published 30 Sept 2026 Updated 30 Sept 2026 0 Views Verified

In a CRM application, implement this production problem: Insert multiple records efficiently in one request. The API/service receives user input and must return or modify data safely. Give the SQL solution, explain why it works, and show how the same operation is called from the selected stack.

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Answer & Explanation

4 Answers

Verified

Option A

DELETE FROM the_table;

Additional Explanation

Incorrect: it does not implement the stated business rule and may modify/fetch the wrong rows.

Verified Correct Answer

Option B

INSERT INTO products(name,price,stock) VALUES (:name1,:price1,:stock1),(:name2,:price2,:stock2),(:name3,:price3,:stock3);

Additional Explanation

Batching reduces round trips compared with issuing one INSERT per row, but batch size should be bounded.

Verified

Option C

UPDATE the_table SET status='active';

Additional Explanation

Incorrect: it does not implement the stated business rule and may modify/fetch the wrong rows.

Verified

Option D

SELECT * FROM the_table;

Additional Explanation

Incorrect: it does not implement the stated business rule and may modify/fetch the wrong rows.