Cumulative Sales Per Customer

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

Domain

SQL

Difficulty

medium

Seniority

L4

Problem

The finance team wants to track each customer's spending trajectory over time. Show every transaction alongside the customer's cumulative total spend up to and including that row, ordered by transaction date.

Summary

Each purchase adds to the running total. Watch it climb.

Practice This Problem

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