Скачать или смотреть Track Customer Status Changes with ROW_NUMBER in PostgreSQL - Beginner

In this short, we walk through how to assign a sequence number to each entry into a different status per customer (national_code), ordered by entry_date.
Perfect for tracking status progression over time!

💡 What you'll learn:

Using ROW_NUMBER() in a SELECT statement

Grouping by customer with PARTITION BY

Ordering status changes by date with ORDER BY

📌 Ideal for data analysts, SQL learners, and anyone working with customer journey data in Postgres.

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