SQL Aggregate Functions Explained for Beginners: COUNT, SUM, AVG, MIN, MAX
Dive into the world of SQL aggregate functions! 🗂️ This beginner-friendly tutorial covers the essential functions you need to summarize and analyze your data effectively. Learn how to use COUNT, SUM, AVG (AVERAGE), MIN, and MAX with clear examples and explanations.
We'll start with a basic overview of aggregate functions, explaining what they are and why they're so important for data analysis. Then, we'll walk through each function step-by-step, demonstrating its purpose, syntax, and practical applications with a sample 'orders' table. 📊
Discover how to count rows, calculate totals, find averages, identify minimum and maximum values, and group data for more insightful summaries. 📚 We'll also cover best practices for using aggregate functions, including handling NULL values and using column aliases. By the end of this video, you'll have a solid understanding of SQL aggregate functions and be able to use them to extract valuable insights from your databases. 🚀
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Chapters:
00:00 - SQL Aggregate Functions
00:17 - What Are SQL Aggregate Functions?
01:09 - Sample Data Table
01:31 - COUNT Function
02:13 - SUM Function
02:57 - AVG Function
03:48 - MIN and MAX Functions
04:46 - GROUP BY with Aggregate Functions
05:54 - SQL Aggregate Functions Summary
07:17 - Outro
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