SQL Practice
SQL 75
All Questions
Skill Topics
Basics & Filtering Aggregation & Grouping Joins (All Types) Subqueries & Correlated CTEs & Adv. Subqueries Window Functions Advanced & Tricky Schema Design & Opt.
All Questions Question of the Day
6 / 23
Practice Mode
Log in

406. Orders by Day of Week

Easy Logistics Business Intelligence
Query Rules
  • The query columns and order must match the expected result schema.
  • NULL values should be handled appropriately where applicable.
  • The grader compares output values and sorting order to evaluate.

Schema Browser

Click a table's header to toggle expand/collapse.
locations
3 cols
departments
3 cols
employees
6 cols
orders
6 cols

Reference Solution

Expected SQL 
SELECT strftime('%w', order_date) AS day_of_week, COUNT(*) AS order_count FROM orders GROUP BY day_of_week ORDER BY order_count DESC;
SQL Editor
Ctrl+Enter to run
Console Output

Console Terminal

Write your query and click "Run Query" (Ctrl + Enter) to see results and testcase validation.

Ready