Overview
Window functions are a powerful feature in SQL that allow you to perform calculations across a set of rows related to the current row. Unlike regular aggregate functions, window functions do not group rows into a single output. Instead, they let you analyze data while retaining the individual row details, making them ideal for tasks like running totals and moving averages.
📚 Key Learning Objectives
- ✓ Define what window functions are in SQL.
- ✓ Identify the syntax and components of window functions.
- ✓ Apply window functions to calculate running totals.
- ✓ Use window functions to find moving averages.
- ✓ Differentiate between window functions and aggregate functions.
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