Which of the following applies to a CASE statement in SQL?

Correct option is B

The CASE statement in SQL is used to handle conditional logic, similar to an IF-THEN-ELSE structure in programming. It evaluates conditions in sequence and returns the first matching result, making it highly useful for creating conditional queries.
Important Key Points:
1. CASE Syntax: CASE WHEN <condition> THEN <result> ELSE <default> END.
2. Allows for conditional data transformation directly in SQL queries.
3. Often used in SELECT statements to create dynamic columns or conditional aggregations.
Knowledge Booster:
· The order of conditions is important because the first true condition is executed, and the rest are ignored.
· CASE can be used in SELECT, UPDATE, and ORDER BY statements.
· It cannot establish loops or directly alter database schema definitions.