Group By & Aggregation Techniques in SQL & Excel | Ep. 3
Focus on SQL Aggregation: Learn the basics to advanced techniques of GROUP BY.
Real-World Example: Follow a relatable college hostel and students scenario to understand grouping concepts.
Cross-Tool Demonstrations:
Excel Pivot Table: Start with synthetic data to introduce grouping.
SQL Implementation: Apply grouping and aggregation using SQL syntax.
Python Pandas GroupBy: Compare SQL code with Pandas for a comprehensive view.
Case Study with Sakila Database: Multi-table aggregation examples with the Sakila database (22 tables).
Key Topics Covered:
Nested Subqueries and Filtering using WHERE, HAVING, IN.
JOINs with Aggregation: Different JOIN types and their use with grouping.
Alias Techniques for cleaner SQL queries.
Interactive Session: Includes student Q&A to clarify common beginner doubts.
Perfect for beginners and intermediate learners aiming to strengthen their SQL aggregation skills!