Oracle Database 10g The Complete Reference

Part 1: Critical Database Concepts
Part 2: SQL and SQL*Plus
Part 3: Beyond The Basic
Part 4: PL/SQL
Part 5: Object-Relational Databases
Part 6: Java In Oracle
Part 7: Clustered Oracle-The Grid
Part 8: Hitchhiker's Guides

Download :  Oracle Databases 10g Reference