Weekly Transaction Day Split

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

Domain

SQL

Difficulty

hard

Seniority

L4

Problem

For each week, compute what percentage of that week's transaction volume occurred on Monday versus Sunday. Round to the nearest whole number and return results by week.

Summary

Transactions by day of week.

Practice This Problem

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