413. RFM Customer Segmentation

Medium E-Commerce Customer Segmentation

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

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locations

3 cols

departments

3 cols

employees

6 cols

orders

6 cols

Reference Solution

Expected SQL

SELECT customer_name, CAST(JULIANDAY('2025-12-11') - JULIANDAY(MAX(order_date)) AS INTEGER) AS recency_days, COUNT(*) AS frequency, SUM(amount) AS monetary FROM orders GROUP BY customer_name ORDER BY monetary DESC;

SQL Editor

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Console Output

Console Terminal

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