[Solved] Identify the error in this SQL snippet:SELECT id, NULLIF(bonus) AS result FROM Employees; — Ans: NULLIF requires two arguments, only one given | SQL

SQL - CASE Expressions

Identify the error in this SQL snippet:

SELECT id, NULLIF(bonus) AS result FROM Employees;

AMissing WHERE clause

BNULLIF cannot be used in SELECT clause

CNULLIF requires two arguments, only one given

DNULLIF returns wrong data type

Step-by-Step Solution

Solution:

Step 1: Check NULLIF function usage
NULLIF requires exactly two arguments, but only one (bonus) is provided here.
Step 2: Validate other options
NULLIF can be used in SELECT. WHERE clause is optional. NULLIF does not cause data type errors by itself.
Final Answer:
NULLIF requires two arguments, only one given -> Option C
Quick Check:
NULLIF needs two values [OK]

Quick Trick: NULLIF always needs two arguments [OK]

Common Mistakes:

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