Set difference of two relations Relations r,s: AB AB C 1 X 2 x 2 B 3 B 1 S r r-S: AB X 1 1 Database System Concepts-6th Edition 2.12 @Silberschatz,Korth and SudarshanDatabase System Concepts - 6 2.12 ©Silberschatz, Korth and Sudarshan th Edition Set difference of two relations Relations r, s: r – s: