By Mohamed El Desouki – محمد الدسوقى [email protected] Tel :00966 553450836 جامعة سلمان بن عبد العزيز – السعودية – الخرج Chapter 2 – Database System Concepts and Architecture in Arabic Text Book: Fundamentals of Database Systems,6th Edition, by Elmasri/Navathe, published by Addison-W To get Lecture slide ,