← 🗄️ Databases & SQL
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Lesson 25 — Ultimate: sales report
Boss level: full query
Join, group, filter and sort in one report — the shape of real analytics SQL.
Why it matters: business dashboards run on queries like this.
Not clear enough?
Task
Show total per user (over 40), highest first.
🧠 Test your knowledge
A quick 3-question quiz on this lesson — instant feedback.
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