A Beginner’s Guide to SQL Anyone Can Use Right Away — Learn SELECT, JOIN, and GROUP BY with a Professional DBA and MySQL

With SQL, what’s scarier than syntax errors are the places where results are silently wrong. Reproduce issues with NULLs, date range end points, and sums inflated by joins firsthand, then learn how to turn questions in plain language into SQL and safely get numbers from company databases. Includes 1.1 million rows of virtual online store data, 229 examples, and 60 exercises.