Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Not a good book.

This book contains too many errors, in text and tests. It does not help you in explaining how Oracle functions.This book contains too many errors.It is well organized but only few Oracle 9i new features are related in this book, not all. And during the OCP exam you will have some questions about the 9i commands that are not here.Then you need to find another way to learn Oracle 9i SQL.Without any experience in Oracle, passing the test with this book alone is very unlikely. Even with a good experience you need another books or documentations to help you.