Instruct: Classify the given review as either positive or negative.
Query: Don't waste your $[...]

This book is extremely poorly organized. Being familiar with basic SQL statements (INSERT and SELECT type statements), I found this book to be a waste of money. The Appendix is the majority of the book (page 167 - 671 including the Index). The syntax is also quite bizzare. While you may think of this as a reference, good luck finding what you want to do.