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Oracle Data Warehouse Tuning for 10g
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by Gavin JT Powell
Sales Rank: 310915
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List Price: $78.95
$71.05
At Amazon
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Paperback: 504 pages
Publisher: Digital Press August 30, 2005
Language: English
ISBN-10: 1555583350
ISBN-13: 978-1555583354
Product Dimensions:
9 x 7.3 x 1.4 inches
Shipping Weight: 2.3 pounds
Book Description
How to keep data going in and out in the most efficient way possible
Product Description
"This book should satisfy those who want a different perspective than the official Oracle documentation. It will cover all important aspects of a data warehouse while giving the necessary examples to make the reading a lively experience."
- Tim Donar, Author and Systems Architect
for Enterprise Data Warehouses
Tuning a data warehouse database focuses on large
transactions, mostly requiring what is known as throughput. Throughput is the passing of large amounts of information through a server, network
and Internet environment, backwards and forwards, constantly! The ultimate objective of a data warehouse is the production of meaningful and useful reporting, from historical and archived data. The trick is to make the reports print within an acceptable time frame.
A data model contains tables and relationships between tables. Tuning a data model involves Normalization and Denormalization. Different approaches are required depending on the application, such as OLTP or a Data Warehouse. Inappropriate database design can make SQL code impossible to tune. Poor data modeling can have a most profound effect on database performance since all SQL code is constructed from the data model.
* Takes users beyond basics to critical issues in running most efficient data warehouse applications
* Illustrates how to keep data going in and out in the most productive way possible
* Focus is placed on Data Warehouse performance tuning
Customer Reviews & Comments
This is probably the only book, and best book I have seen on Data Warehouse tuning. Mr Powell has done a very good job in clearly explaining some of the oracle features frequently used in a Data Warehouse like Star Queries, Star Query Transformations, Materialized Views, Dimensions objects. He has given very practical hints and performance recommendation as to when to use some of these features and how they can be tuned. The best thing I liked whether you are a new/intermediate/advanced developer/DBA, the book is loaded with examples showing how small changes affect the cost of some queries using oracle built in explain plan features. Other good feature of the book is the most of topics covered like Bitmap Indexing, Materialized view, etc. he has explained the potential pitfalls of those features and when not to use them, giving the developer/architect of the Data Warehouse system to help choosing proper design/implementation. He has also covered the partioning and parallel processing a very essential for data warehouse tuning, however you may find this particular topic in other books. The new features like model clause and how optimizer rewrites the query are well explained. Loading and extraction a key portion of Data Warehouse Architecture is covered. He does cover the Tuning Hardware Resources of Data Warehousing, but as the author mentions in the preface he gives lot better information on tuning the application/query and architecture in the book rather than tuning the hardware underneath and if we use those concepts correctly tuning of hardware resources should be the last thing we may have to do. Where ever needed he has explained how this feature is behaved in 10g and sometimes compared with previous version. I do like and agree with his tuning approach and intutively used it myself at my job all the time, where I tune my database application on a low grade machine where resources are not state of the art, where I can see maximum benefit of my tuning, rather than tuning my application on high grade machine where my application's performance shortcoming will be hidden. I think this book will be very useful for data modeler/developers/DBA or whoever is already using Data Warehouse application or are planning to use/develop a Data Warehouse system. I thank Mr Powell for sharing the knowledge and experience he has gained in this field with other developers/DBAs etc.
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Oracle Data Warehouse Tuning for 10g
List Price: $78.95
Available from Amazon
Price: $71.05
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