Beginning Oracle SQL
Chapter 1: Relational Database Systems and Oracle
Chapter 2: Introduction to SQL, AQL*Plus, and SQL Developer
Chapter 3: Data Definition, Part I
Chapter 4: Retrieval: The Basics
Chapter 5: Retrieval: Functions
Chapter 6: Data Manipulation
Chapter 7: Data Definition, Part II
Chapter 8: Retrieval: Multiple Tables and Aggregation
Chapter 9: Retrieval: Some Advanced Features