by Mohamed El Desouki mohamed_eldesouki@hotmail.com Tel :00966 553450836 جامعة سلمان بن عبد العزيز – السعودية – الخرج شرح مقرر نظم إدارة قواعد البيانات – محاضرات مباشرة Course : Database Management Systems – 2nd Database Course Topic 2 : Concurrency Control This video explains what is meant by two phase locking Protocol , and how it is applied on transactions and how to check whether the transaction applies the 2pl or not ?