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 search quality team needs a unique user reach metric. How many unique users have issued at least one search query?

Summary

Every search is a question someone needed answered. Count the people asking.

Practice This Problem

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