Answer & Explanation

4 Answers
Verified

Option A

Compare NULL using = NULL.
Additional Explanation
This option is incorrect for the stated requirement.
Sarkari Resultess
Editorial Answer 1
Verified

Option B

Use DELETE for the transformation.
Additional Explanation
This option is incorrect for the stated requirement.
Sarkari Resultess
Editorial Answer 2
Verified

Option C

Use string concatenation without handling NULL values.
Additional Explanation
This option is incorrect for the stated requirement.
Sarkari Resultess
Editorial Answer 3
Verified Correct Answer

Option D

SELECT * FROM orders WHERE order_date >= MAKEDATE(YEAR(CURRENT_DATE),1) AND order_date < CURRENT_DATE+INTERVAL 1 DAY;
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 4