Part I Database Development Fundamentals
This part presents fundamental information for developers of Oracle Database and database applications. The chapters in this part cover mainly high-level concepts, and refer to other chapters and manuals for detailed feature explanations and implementation specifics.
Oracle Database 2 Day Developer's Guide and Oracle Database 2 Day DBA form more information on oracle Database concepts and techniques.
http://asktom.oracle.comfor books and articles about Oracle database concepts by Tom Kyte