Latest Session Per User

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

Domain

SQL

Difficulty

easy

Seniority

L3

Problem

The retention team is building a recency model and needs each user's most recent session start date alongside their user ID.

Summary

Everyone has a most recent session.

Practice This Problem

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