The Ultimate MySQL Bootcamp
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Colt Steele's popular Udemy course preview/full on YouTube.
More resources on Relational Databases
SQLZoo
Interactive SQL tutorials and exercises.
Databases and SQL for Data Science with Python
Working knowledge of SQL (or Structured Query Language) is a must for data professionals like Data Scientists, Data Analysts and Data Engineers. Much of the world's data resides in databases. SQL is a powerful language used for communicating with and extracting data from databases. In this course you will learn SQL inside out- from the very basics of Select statements to advanced concepts like JOINs. You will: -write foundational SQL statements like: SELECT, INSERT, UPDATE, and DELETE -filter result sets, use WHERE, COUNT, DISTINCT, and LIMIT clauses -differentiate between DML & DDL -CREATE, ALTER, DROP and load tables -use string patterns and ranges; ORDER and GROUP result sets, and built-in database functions -build sub-queries and query data from multiple tables -access databases as a data scientist using Jupyter notebooks with SQL and Python -work with advanced concepts like Stored Procedures, Views, ACID Transactions, Inner & Outer JOINs through hands-on labs and projects You will practice building SQL queries, work with real databases on the Cloud, and use real data science tools. In the final project you’ll analyze multiple real-world datasets to demonstrate your skills.
Databases
Learn relational databases and SQL with this free course by Jennifer Widom. Master database concepts & query data effectively!
Introduction to Database Systems (15-445/645)
Learn relational database systems from Carnegie Mellon's Andy Pavlo. Explore core concepts and implementations!
PostgreSQL Tutorial
Official-like free tutorial site for Postgres.
Explain Extended
In-depth SQL query optimization articles.