Transaction Share of User Spend

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

Domain

SQL

Difficulty

medium

Seniority

L4

Problem

For each transaction, show the transaction ID, username, the transaction amount, and the ratio of that transaction's amount to the user's overall total as a decimal. Each username is unique and each user has at most one transaction per day.

Summary

Each transaction's share of the whole.

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