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Find the average session duration in seconds for each device

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

Domain
SQL
Difficulty
medium

Problem

Find the average session duration in seconds for each device. Show device_id and avg_duration.

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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