Subqueries Courses
Udemy Advanced SQL Bootcamp
Udemy BigQuery で学ぶ非エンジニアのための SQL データ分析入門
Udemy SQL HackerRank Challenge: Get Gold star & 670 points
Udemy SQL: Master SQL With PhpMyAdmin and MYSQL Engine
Udemy Taller de Consultas SQL
Udemy Counting Votes with Subqueries - Database Management Tutorial
Ben Awad via YouTube SQL Crash Course - Learn Raw SQL for Beginners
Laith Academy via YouTube SQL Tutorial for Beginners - Advanced SQL Tutorials
Extern Code via YouTube SQL do básico ao avançado (com MySQL e Projeto)
Udemy