[Solved] Which of the following correctly demonstrates the syntax of a searched CASE expression in SQL? — Ans: CASE WHEN condition1 THEN result1 WHEN condition2 THEN result2 ELSE result3 END | SQL

SQL - CASE Expressions

Which of the following correctly demonstrates the syntax of a searched CASE expression in SQL?

ACASE WHEN condition1 THEN result1 WHEN condition2 THEN result2 END ELSE result3

BCASE expression WHEN value1 THEN result1 WHEN value2 THEN result2 ELSE result3 END

CCASE WHEN condition1 THEN result1 ELSEIF condition2 THEN result2 ELSE result3 END

DCASE WHEN condition1 THEN result1 WHEN condition2 THEN result2 ELSE result3 END

Step-by-Step Solution

Solution:

Step 1: Identify searched CASE syntax
Searched CASE uses WHEN conditions followed by THEN results, ending with END.
Step 2: Check options
CASE WHEN condition1 THEN result1 WHEN condition2 THEN result2 ELSE result3 END correctly shows multiple WHEN conditions with THEN results and an ELSE clause before END.
Final Answer:
CASE WHEN condition1 THEN result1 WHEN condition2 THEN result2 ELSE result3 END -> Option D
Quick Check:
Is the ELSE clause before END and conditions after WHEN? [OK]

Quick Trick: WHEN conditions THEN results, ELSE optional, END mandatory [OK]

Common Mistakes:

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Which of the following correctly demonstrates the syntax of a searched CASE expression in SQL?