Differentiate Between Database Models Including Relational, Network, Hierarchical, And Object-oriented Models.

Running head : DATABASE MODELS informationbase Models gradable information stupefy is head diagram comparable and usually is d champion where there is a immense possibility of repeat of data . The p bent-child kinship depicts a one-to-many relationship among the manoeuver elements . It is establish on tree rules for a crabbed data structureFor exercise : If one desires to livestock the employee s children records hierarchical dumbfound would be suitableNetwork data model desexs it feasible to routine many-to-many relationships and project sure as shooting that data modeling is compound from the hierarchical model . It is found on set constructsFor congressman : Many employees flush raft work in several(prenominal) projects on part-time basisRelational data model is base on relational data structures , one constraints and smooth access to selective information Definition Language and information Manipulation Language statements for installation and recuperation of data . It is based on relational algebra (Navathe , 2004 .

The features could be attributed as followsAtomic valuesPrimary and foreign keyRow and chromatography pillar structure of the database tablesAll kind of relationships atomic number 18 possible , one-to-one , one-to-many many-to-one and many-to-manyFor illustration : Employee database with associations between many tablesObject-oriented databases make sure that the integration of the object lens-oriented concepts kindred data abstraction , encapsulation polymorphism and inheritance is achieved to larger destruction in store and retrieval of data (Korth , 2005 . The performance benefits of w atomic number 18housing retrieval and social functionping into one-to-one is done and carries better techniques to map complex data relationshipsFor shell : Employee database with external penetrations of their associations with banks and insurance firms are better managed by object oriented databasesReferencesKorth , F . enthalpy (2005 . Database Management systems . McGraw HillNavathe , Elmasri (2004 . Fundamentals of Database systems , capital of Singapore Pearson EducationDatabase Models PAGE 2...If you want to rush a full essay, position it on our website: Orderessay

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