Pairwise Latency Maximum

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

Domain

SQL

Difficulty

medium

Seniority

junior, mid

Problem

Take every combination of latency values from api_calls (with replacement) and, for each pair, show both values and whichever is larger. Limit to the first 100 rows when both values are in ascending sequence. Return the two latency values and the maximum of the pair.

Practice This Problem

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