Show each API call's endpoint and username (NULL when no user matches)

A medium SQL interview practice problem on DataDriven. Write and execute real sql code with instant grading.

Domain

SQL

Difficulty

medium

Problem

Show each API call's endpoint and username (NULL when no user matches). Classify status: 'success' for 200, 'error' for other non-NULL values, 'unknown' when NULL.

Practice This Problem

Solve this SQL problem with real code execution. DataDriven runs your SQL queries against a real database and grades it automatically.