Answer & Explanation

4 Answers
Verified

Option A

CHECK price > table;
Additional Explanation
This option is incorrect for the stated requirement.
Sarkari Resultess
Editorial Answer 1
Verified

Option B

FOREIGN KEY (price) REFERENCES prices(id);
Additional Explanation
This option is incorrect for the stated requirement.
Sarkari Resultess
Editorial Answer 2
Verified Correct Answer

Option C

ALTER TABLE products ADD CONSTRAINT chk_product_price CHECK (price >= 0);
Additional Explanation
Correct implementation. Prefer parameterized queries in application code, validate affected rows for UPDATE/DELETE, and use transactions for related writes.
Sarkari Resultess
Editorial Answer 3
Verified

Option D

UNIQUE (price >= 0);
Additional Explanation
This option is incorrect for the stated requirement.
Sarkari Resultess
Editorial Answer 4