Relational Databases Courses
365 Data Science via YouTube SQL Tutorials
Corey Schafer via YouTube SQL - Database Programming
Mike Dane via YouTube Database Design
Caleb Curry via YouTube DB2 Tutorials
Caleb Curry via YouTube SQL Basics for Data Analysts
Alex the Analyst via YouTube Intermediate SQL Tutorials
Alex the Analyst via YouTube Advanced SQL Tutorials
Alex the Analyst via YouTube Introduction to SQL
Independent Creación de Tablas de Base de Datos con SQL
Coursera Project Network via Coursera