Outline ■Reasoning with MVDs Higher normal forms Join dependencies and PJNF ·DKNF Database System Concepts-7th Edition 28.2 ©Silberscha乜，Korth and SudarshanDatabase System Concepts - 7 28.2 ©Silberschatz, Korth and Sudarshan th Edition Outline ▪ Reasoning with MVDs ▪ Higher normal forms • Join dependencies and PJNF • DKNF