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Welcome to our in-depth video on "Subquery and Aggregate Functions" in SQL! If you're looking to level up your data retrieval skills and perform advanced queries on your SQL Server databases, you're in the right place. In this tutorial, we'll demystify subqueries and delve into the power of aggregate functions for efficient data analysis.

🔍 Unraveling Subqueries 🔍
Subqueries, also known as nested queries, allow you to use the result of one query as a condition or value in another query. They are invaluable tools for slicing and dicing data in ways that regular queries can't achieve. We'll walk you through various types of subqueries, including scalar, column, and table subqueries, with real-world examples to solidify your understanding.

📊 Harnessing the Power of Aggregate Functions 📊
Aggregate functions, such as SUM, COUNT, AVG, MIN, and MAX, are essential for summarizing and analyzing data in SQL. You'll learn how to leverage these functions to calculate totals, averages, counts, and other useful statistics across multiple records.