For those of you who need to quickly ramp up on SQL, but have no time to plow through a 600-page tome, this is for you.
SQL in 30 Pages is a brief e-booklet of fewer than 4,000 words, designed to get you into SQL as fast as possible, as easily as possible.
There is no bull in this Micro-Manual by popular online teacher U.Q. Magnusson. From the very first page you will learn about the basic concepts of SQL,
including the command-line interface, the CRUD operations (Create, Read, Update, and Delete), multiple tables, functions, data types, and indexing.
Simple yet comprehensive examples follow as you zip through, and each is explained in pithy detail.