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Rating: 
Summary: Poor
Review: As a couple of reviewers have already indicated, this book doesn't provide the level of detail required to really understand the various topics this book claims to cover.
Rating: 
Summary: Recommended for Oracle developers
Review: As an Oracle developer, I found this book very helpful in my day-to-day chores. It is divided into four main sections, which I discuss further below.The first section is a Java tutorial, for the Oracle developer. Having dealt a little with Java before, I found little new in this section. A word of caution, though: this book assumes some familiarity with PL/SQL (while no assumptions are made of Java knowledge). The material is divided so that you can just scan through, or skip, the first section (ca 100 pages), if you feel like it. In part 2 of this book, we have a few chapters on both JDBC and SQLJ. Most emphasis is on Oracle-specific stuff and extensions. These chapters were different in quality, but served their purpose. Part 3 is the heart of the book. This is where the authors delve into the details of Oracle Java, and illustrate how PRACTICAL problems may be solved by using Java or the joint efforts of PL/SQL and Java. I found some of the chapters in this section very pleasent to read, and I have already used some of the code presented in my own work. Highlights include the chapters on the Oracle JVM and the uses of Java utilities and OS resource handling (e.g. mail client that takes BLOB attachments). Finally, section 4 discusses performance, both of Java and SQL, and compares Oracle Java with PL/SQL. Although this discussion is a little lightweight (this is material for whole books!), the emphasis on using bind variables is easily justified. Overall, I greatly recommend this book for any Oracle developer seeking to use Java stored procedures in the database!
Rating:
Summary: Great book for Oracle Java Programming
Review: First of all, let me correct any misconceptions you might be having about this book: It is not about general, three-tier web development using Oracle and Java - instead, it is focused entirely on in-database programming with stored procedures, using Java where PL/SQL either has no solution or lacks in some aspect. For me, this book was very useful. Before I read it, I didn't see much use in Java stored procedures, finding PL/SQL a much better alternative. In short, this book tries hard to illustrate the role of each language within the Oracle database, and in the end, is successful in doing that. The issue of PL/SQL vs. Java - both in terms of performance and usefulness - is a concurrent theme throughout most of the book. For me, that latter half was the real meat on the bone. The first chapters are thought for beginners to Java and JDBC, but I skipped them mostly. The chapters on security, OS resources and PL/SQL-Java interoperability were very useful. I actually found more than one case where Java would have made a great difference for a past project! Additionally, I appreciated the performance section at the back, which cleared up many of my initial misconceptions on the subject. To summarize: If you are interested in extending your Oracle database applications by using the abilities of Java, this is the right book for you.
Rating:
Summary: Blurry
Review: I bought this book thinking I would get a good understanding of Java programming with Oracle. I was wrong. This book, like amny other Wrox books, has too many authors who duplicate the same material in different parts of the book. I didn't think coverage was adequate in any of the areas claimed to be covered. Save you money and buy books that cover JDBC and PL/SQL separately. At least you'll get something worthwhile that way.
Rating:
Summary: Attempts to cover too much material and fails
Review: I didn't think much of this book at all. It seemed like a random collection of essays that were quickly thrown together. I would avoid this book and buy a more focused one instead. You'd be better off buying separate books on PL/SQL and JDBC instead.
Rating:
Summary: Spagetti Wrox book
Review: Like most of the Wrox books, this one is like staring at a plate of spagetti! Way too many authors and poor editing of the material meant I had a hard time making any headway with this book.
Rating:
Summary: Great value
Review: O9iJP is loaded with examples, on integrating Java with Oracle technologies such as PL/SQL, SQL*Loader, interMedia Text, and more. Rather than a guide to Java, JDBC or PL/SQL, this book is first and foremost a collection of useful tips and tricks, that I found of great value. For example, in one of my own applications, I had been using C procs for extended file handling (working with directories, etc.). The file handling package developed and illustrated O9iJP showed me a much better alternative, as I had been having contsant maintenance problems with the C procs (related to listener setup, etc.).
Rating:
Summary: Too little detail
Review: This book doesn't get into enough detail on the various topics it claims to cover.
Rating:
Summary: Practical and useful
Review: This book is a great guide to writing Oracle Java stored procedures. Of course, it has its cons and pros. On the bad side, there are the obvious differences in writing style and flavour of the different chapters (although not to the level of irritation), which is probably a result of so many authors. Although I had some experience with Java, JDBC and SQLJ before, I really liked many of the chapters dealing with the fundamentals, especially the Exception chapter. I found much of the Oracle-Java specific material very useful, such as the chapters on Java and SQL performance, on using Java and PL/SQL together, and more. All in all, this book is packed with useful examples and practical solutions to real-life issues (mostly scalability and performance related), which made it very useful and pleasent to read.
Rating:
Summary: Excellent coverage of oracle java
Review: This book was a real life saver for me! Detailed deployment guidelines and intuitive examples, gave me my money's wortth. Two thumbs up!
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