🔥 SQL Scenario-Based Q&A (Part 2)
Level up your analyst thinking 👇

📊 Find 2nd highest salary?

👉 Use DENSE_RANK() / ROW_NUMBER()
👉 Or subquery with MAX()
👉 Handle duplicates carefully

📊 Customers who didn’t place any orders?

👉 LEFT JOIN + WHERE order_id IS NULL
👉 Or use NOT EXISTS
👉 Classic anti-join problem

📊 Month-over-Month (MoM) growth?

👉 Use LAG() function
👉 Compare current vs previous month
👉 ((current - prev) / prev) * 100

📊 Pivot rows into columns?

👉 CASE WHEN + aggregation
👉 Or PIVOT (if supported)
👉 Used in reporting

📊 Find highest order per customer?

👉 ROW_NUMBER()
👉 PARTITION BY customer_id
👉 Order by amount DESC

🔥 React ♥️ if you want more SQL like this

🔥 Part 3 coming soon