Now, let's move to the next topic in the SQL Learning Series: *HAVING vs WHERE* Both WHERE and HAVING are used to filter data, but they’re used at different stages in a query. Let’s break it down simply: *1. WHERE — Filters Before Grouping* Used to filter individual rows before any grouping or aggregation happens. Example: SELECT region, SUM(order_amount) FROM orders WHERE region != 'South' GROUP BY region; Excludes the 'South' region before grouping and summing. *2. HAVING — Filters After Grouping* Used to filter groups after aggregation. Example: SELECT region, SUM(order_amount) AS total_sales FROM orders GROUP BY region HAVING SUM(order_amount) > 10000; First, it groups orders by region, then only shows regions where total sales are greater than 10,000. Think of it Like This: - WHERE filters rows - HAVING filters groups *Common Mistake:* Using HAVING instead of WHERE when no aggregation is involved. *Wrong:* SELECT * FROM orders HAVING order_amount > 500; -- ❌ *Correct:* SELECT * FROM orders WHERE order_amount > 500; -- ✅ *React with ❤️ if you're ready for the next quiz.* 📝 SQL Learning Series: https://whatsapp.com/channel/0029VanC5rODzgT6TiTGoa1v/1075