SQL Learning Center - GoldMine

What I liked about Judith Bowman’s “The Practical SQL Handbook” is that it’s easy to read and the examples aren’t difficult to try yourself. It starts with an explanation of how the SQL language was developed and why the developers designed it as they did. It’s not specific to any single SQL implementation but intead covers aspects of the Query Language that are common to all SQL implementations. If you are completely new to SQL you should try one of the books categorized here as Beginner but this book should be your second SQL read.