Showing posts with label oracle 11g. Show all posts
Showing posts with label oracle 11g. Show all posts

OCA Oracle Database 11g Administration I Exam Guide (Exam 1Z0-052) Review

OCA Oracle Database 11g Administration I Exam Guide (Exam 1Z0-052)
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OCA Oracle Database 11g Administration I Exam Guide (Exam 1Z0-052) ReviewThis book has a fairly decent walk through of the exam. The 'substance' is there but the proofreading is not. Many times this can be inferred - for example; on page 175 - it tells you to set the 'processes' parameter in the 'static' parameter file by using the 'scope=spfile' option.
alter system set processes=200 scope=spfile;
Okay - so far so good. Next page - we set the optimizer mode to the outdated 'rule' value. However - we want the change to work for the current session only - so we use the 'scope=spfile' value. (HUH??)
alter system set optimizer_mode=rule scope=spfile;
This is straight out of the book. It was obviously a mistake because they said the same value for scope did two different things. I looked it up the 'alter system' command on the net and found the correct scope value to affect only the current session is 'memory' - so it should actually have been:
alter system set optimizer_mode=rule scope=memory;
Makes much more sense now. The thing that kinda scares me is how many more of these little mistakes are there that are not as obvious? So I try to read this book as a 'rough in' but take it all with a grain of salt.
I don't know how many good books there are out there yet for the 11g exam - this one is OKAY. I bought this one impulsively at B&N without prior research... maybe you can find a better one.
One more thing - if you are not yet familiar with the fundamentals of a relational database (normalization, foreign keys, join types, etc.) - do NOT go off of the explanation in the beginning 'primer' chapter of this book - it is horrible and I was only able to piece it together using my prior knowledge of the same. Once it gets into the actual DBA work the writing improves.
Edit 9/10/2008 - Now that I'm further into the book I'm going to have to say; don't get this book - it's too inaccurate. Here's another example - one of their sample exam questions asks for modifiers that can be applied to a b-tree index and not a bitmap index. One of the WRONG answers was "descending". To quote: "Descending, function-based, and compound indexes can be either b*tree or bitmap.
It seemed really odd to me that you could make a bitmap index descending. So I looked it up the CREATE INDEX statement on oracle docs 11g:
ASC | DESC
(...)
Restriction on Ascending and Descending Indexes You cannot specify either of these clauses for a domain index. You cannot specify DESC for a reverse index. ****Oracle Database ignores DESC if index is bitmapped**** or if the (...)OCA Oracle Database 11g Administration I Exam Guide (Exam 1Z0-052) Overview
A Fully Integrated Study System for OCA Exam 1Z0-052

Prepare for the Oracle Certified Associate Oracle Database 11g Administration I exam with help from this exclusive Oracle Press guide. In each chapter, you'll find challenging exercises, practice questions, a two-minute drill, and a chapter summary to highlight what you've learned. This authoritative guide will help you pass the test and serve as your essential on-the-job reference. Get complete coverage of all OCA objectives for exam 1Z0-052, including:

Database architecture

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Oracle JDeveloper 11g Handbook: A Guide to Fusion Web Development (Osborne ORACLE Press Series) Review

Oracle JDeveloper 11g Handbook: A Guide to Fusion Web Development (Osborne ORACLE Press Series)
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Oracle JDeveloper 11g Handbook: A Guide to Fusion Web Development (Osborne ORACLE Press Series) ReviewI was hoping for a book that would provide an in-depth discussion of applying this technology to my business problem. And frankly, I am disappointed. I suppose that my chief disappointment is that the book seems to digress too quickly into a tutorial. For example, I was interested in how to use a popup dialog box. There is no coverage of popup dialog boxes outside the chapters where one builds a sample application. Another of the key concepts that separates ADF Faces technology from Java Server Faces is the built in partial page rendering available in the ADF components. The authors devote one page to a general discussion of the technology, glossing over some important details in my opinion, then digress into another series of tutorials. While tutorials are great if I am building the sample application, everyone I speak with agrees that tutorials generally fall short when it comes to applying the technology to real business problems. Additionally, no place that I have worked is interested in paying you while you build the sample application in order to learn the technology. We need books that allow us to quickly apply the technology to our business problems. In my case, my business problem is more complex than simple master detail relationships and persisting data to a database. Perhaps my review would be more positive if my business problem were that simple.
Another place where the book falls short is that it fails to discuss the what the various controls on the property inspector are for, leaving us guessing and in many cases simply wondering.
If you are looking for a reasonably good tutorial, showing you how to build a typical CRUD application backed by a database, then this might be for you. If you are looking for an in depth discussion of the technology, and guidance in making design decisions for your own application, you are likely to be disappointed.
I come from a web development background having done Java EE for more than 6 years, including HTML, Java Script, JSP, EJB, and JDBC to name a few technologies. I have worked in all layers from the database to the user interface, using JDeveloper, Eclipse, and WebSphere to name a few integrated development environments I have worked in. So I am not new to web development on the Java platform.
In short, this book disappointed me. I still think the market needs a good book on applying this promising technology.
Oracle JDeveloper 11g Handbook: A Guide to Fusion Web Development (Osborne ORACLE Press Series) OverviewWritten by the most knowledgeable Oracle JDeveloper author team in the world
This Oracle Press guide shows how to build Web applications using the Fusion Middleware development tool, Oracle JDeveloper. The book discusses the latest technologies and explains how to develop code using multiple techniques.
Oracle JDeveloper 11g Handbook: A Guide to Fusion Web Development covers the Oracle Application Development Framework and JavaServer Faces. Hands-on practice examples walk you through the creation of a complete sample application that employs highly-interactive user interface components and declarative development methods. You will learn the techniques required to implement Fusion-oriented software solutions in JDeveloper.


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