books.google.com - There are three parts to tuning an Oracle database: data modeling, SQL code tuning and physical database configuration.A data model contains tables and relationships between tables. Tuning a data model involves normalization and de-normalization. Different approaches are required depending on the application,...http://books.google.com/books/about/Oracle_High_Performance_Tuning_for_9i_an.html?id=MFgDkAv1bT8C&utm_source=gb-gplus-shareOracle High Performance Tuning for 9i and 10g
