Master SQL Aggregate Functions! COUNT, SUM, AVG, MAX, MIN | Beginner SQL Tutorial скачать в хорошем качестве

Master SQL Aggregate Functions! COUNT, SUM, AVG, MAX, MIN | Beginner SQL Tutorial

GitHub SQL Queries Used in Video: https://github.com/SharifAthar/MySQL-... _______________________________________________________________ Ever wonder how analysts can look at a messy table and instantly pull out answers like totals, averages, and what is really happening inside the data? In this lesson, you will learn the small set of functions that unlock that power, plus one bonus technique that catches duplicates fast. This video is for SQL beginners, students, and aspiring data analysts who want practical MySQL skills that translate to real work. We use a healthcare dataset to make the examples feel like what you would actually run on the job. Key takeaways you will learn: • How to use COUNT, SUM, AVG, MIN, and MAX to summarize real datasets • The simple rule that prevents the most common beginner aggregation mistake • When to filter before aggregation versus after aggregation and why it matters • How COUNT behaves differently with rows versus columns and nulls • How MIN and MAX can quickly reveal suspicious values and data quality issues • The bonus method that helps you measure uniqueness and spot duplicates in seconds If you are learning SQL aggregate functions in MySQL, this tutorial will help you build the core reporting mindset used in data analytics. You will get clearer intuition for SQL COUNT, SQL SUM, SQL AVG, SQL MIN, and SQL MAX, and you will also learn when GROUP BY is required so your queries stay valid and readable. This is a foundational skill for anyone doing SQL for data analysis, building dashboards, or preparing for SQL interviews with realistic datasets. Subscribe for the next video on SQL aliases so you can keep building your beginner SQL toolkit. SQL aggregate functions, MySQL aggregate functions, SQL COUNT, SQL SUM, SQL AVG, SQL MIN, SQL MAX, COUNT DISTINCT SQL, GROUP BY in SQL, WHERE vs HAVING in SQL, SQL for data analysis, beginner SQL tutorial, MySQL beginner tutorial, SQL data cleaning basics, healthcare dataset SQL, SQL interview basics #SQL, #MySQL, #SQLTutorial, #LearnSQL, #DataAnalytics, #DataAnalyst, #BusinessIntelligence, #Analytics, #Database, #Querying, #TechCareers, #Coding, #Programming, #DataCleaning, #HealthcareData, #SQLTips _______________________________________________________________ Get access to my FREE SQL Cheat Sheet & SQL Workbook containing 100 helpful Questions & Answers! https://informessor.com/get-access-to... Check out my website: https://informessor.com _______________________________________________________________ SUBSCRIBE! The goal for Informessor is to provide comprehensive, up-to-date, and engaging content that spans the vast landscape of health informatics. We'll cover topics on artificial intelligence, healthcare technology, data analytics, give out healthcare career advice, and more! From in-depth videos on the latest trends and technologies to insightful discussions on career paths and educational opportunities, Informessor wants to help educate and inspire. _______________________________________________________________ LinkedIn: / informessor Website: https://informessor.com My Newsletter: https://informessor.beehiiv.com Music by CreatorMix.com _______________________________________________________________ The views and opinions expressed in this video are my own and are shared for informational purposes only. I strive to provide accurate information, but I encourage viewers to verify details independently. Nothing in this video should be interpreted as an official statement or position of any company I currently work for or have worked for, and my comments do not represent their views. _______________________________________________________________