Mastering AGGREGATED FUNCTIONS COUNT, SUM, AVERAGE #sql #datascience #dataanalysis

On Day 21 of our SQL learning journey, we dive into aggregate functions — the core tools for data summarization and analysis in SQL.
These functions allow you to perform calculations on groups of rows and return a single value, helping you extract meaningful insights from large datasets.

In this session, you’ll learn:
The concept and use of aggregate functions

How to use:
COUNT() → to count rows or specific column values
SUM() → to calculate total values (like sales or salaries)
AVG() → to find average values (like average marks or revenue)
Combining aggregate functions with GROUP BY

Filtering aggregated results using HAVING
Real-world examples such as total sales by region or average employee salary

By the end, you’ll confidently summarize and interpret data using these key SQL functions.#SQL #LearnSQL #Database #SQLQueries #LIMITKeyword #OFFSET #DataAnalytics #DataScience #SQLTips #Day18Challenge #techlearning #AI #MachineLearning #ArtificialIntelligence #GenerativeAI #Python #DataScienceProjects #AIEngineer #DataScientist
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