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Friday Sessions for Shared Experiments

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

Domain
SQL
Difficulty
medium
Seniority
L5

Problem

For each Friday, count sessions where the session's user is enrolled in an experiment that at least one other user is also enrolled in. Show the date and total session count, ordered chronologically.

Summary

Friday vibes only. Same experiment, different users.

Practice This Problem

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

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