Database Management System

INTRODUCTION Movie g totallyery is a image conveyal computer memory located in East Riffa and established in the course of study 1999; it gives their customers the opportunity to convey the latest movies from comedy to action and galore(postnominal) more(prenominal) on DVDs. The calling started off with letting their movies to their subscribers and subsequent on their task expanded to cover changeing the DVDs they rent as well as having a stand to swap brand new unmatcheds in the same store to 2 subscribers and other customers. At present, Movie heading rents as a good deal as 8000 movies to more than 1300 members. Moreover, they anticipate their business to keep maturation in the long run and hope that their future plans for this business like branching out thrives. PART ONE Diagrams definition of relationships and entities FIRST SECOND THIRD: semantic Net forrader: Description of relationships and multiplicity 1.Manages ( faculty and Movies): This Relationship between the rung and the Movies entities signifies that the Staff manages the content of DVDs owned y the Movie impetus .The multiplicity is 1..

1 on the Staff spatial relation and 1..* on the Movies side which means that 1 staff manages star or all the movies . 2.Has ( Movies and MoviesForRent /MoviesSold) This relationship signifies that the Movies table has / contains twain(prenominal) tables MoviesForRent and MoviesSold. The multiplicity on bo th sides is 1..* signifying that movies rent! ed and movies sold elicit be at to the lowest degree 1 or can be many simply they both belong to the Movies entity. 3.Supply ( Suppliers and Movies) This relationship between Suppliers and Movies refers to the actual hap over of movies from different providers .The multiplicity on both ends is 1..* signifying that one supplier can supply1 or many movies and that 1 movie can be supplied by 1 or more suppliers. 4.Rented by ( Customers and MoviesForRent ) It refers to the...If you want to get a full essay, vagabond it on our website: OrderCustomPaper.com

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