SQL in 10 Minutes a Day, Sams Teach Yourself (5th Edition)

Sams Teach Yourself SQL in 10 Minutes offers straightforward, practical answers when you need fast results.
By working through the book’s 22 lessons of 10 minutes or less, you’ll learn what you need to know to take advantage of the SQL language.
Lessons cover IBM DB2, Microsoft SQL Server and SQL Server Express, MariaDB, MySQL, Oracle and Oracle express, PostgreSQL, and SQLite.