SQL - Part 33 - avg(), max(), min(), count() and sum() MySQL Aggregate Functions

SQL - Part 9 - Using Logical Operators (AND, OR, NOT)

SQL as a Data Analysis Tool. How SQL is used to perform efficient… | by Soner Yıldırım | Towards Data Science

Joins In SQL | Joins In SQL With Examples | SQL Joins | SQL Tutorial For Beginners | Simplilearn

Introduction to Relational Database and SQL