From transactions, return transaction_id, user_id, total_amount, and AVG(total_amount) OVER (PARTITI

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

Domain

SQL

Difficulty

medium

Problem

From transactions, return transaction_id, user_id, total_amount, and AVG(total_amount) OVER (PARTITION BY user_id ROWS BETWEEN 1 PRECEDING AND CURRENT ROW) AS trailing_avg. Order by user_id, transaction_date.

Practice This Problem

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