Outline Structure of Relational Databases Database Schema Keys Schema Diagrams Relational Query Languages The Relational Algebra Database System Concepts-7th Edition 2.2 @Silberschatz,Korth and SudarshanDatabase System Concepts - 7 2.2 ©Silberschatz, Korth and Sudarshan th Edition Outline ▪ Structure of Relational Databases ▪ Database Schema ▪ Keys ▪ Schema Diagrams ▪ Relational Query Languages ▪ The Relational Algebra