The Language of SQL. Larry Rockoff

Despite the simplicity and availability of SQL, there are queries or poorly designed databases in which the developer has to work hard to get the necessary data. This guide is designed for novice developers and demonstrates not only the basics of SQL, but also the best practices with it.

The book covers the following topics:
✔ relational database basics;
✔ use functions;
✔ data sorting;
✔ joines;
✔ under requests and more.

Advantages:
➕ relevant material on the topic;
➕ small volume;
➕ wide coverage of topics.

Disadvantages:
➖ is not a complete reference guide.