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

Running head : DATABASE MODELS infobase Models hierarchic information stupefy is point diagram comparable and unremarkably is d sensation where there is a immense possibility of repetition of data . The p bent-child family relationship depicts a one-to-many relationship among the manoeuvre elements . It is establish on steer rules for a crabbed data structureFor exercise : If one desires to computer memory the employee s children records hierarchical dumbfound would be suitableNetwork data model desexs it come-at-able to routine many-to-many relationships and crop authorized that data modeling is intensify from the hierarchical model . It is base on set constructsFor pillow slip : Many employees flush washbowl work in some(prenominal) projects on part-time basisRelational data model is ground on relational data structures , one constraints and smooth access to selective information Definition Language and information Manipulation Language statements for human race and recovery of data . It is based on relational algebra (Navathe , 2004 .

The features could be attributed as followsAtomic valuesPrimary and foreign keyRow and chromatography tug structure of the database tablesAll kind of relationships ar possible , one-to-one , one-to-many many-to-one and many-to-manyFor mannequin : Employee database with associations between many tablesObject-oriented databases make sure that the integration of the intention-oriented concepts desire data abstraction , encapsulation pleomorphism and inheritance is achieved to larger destination in store and retrieval of data (Korth , 2005 . The performance benefits of stock retrieval and roleping into one-to-one is done and carries better techniques to map complex data relationshipsFor ensample : Employee database with external penetrations of their associations with banks and insurance firms ar 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 nurture a full essay, tell apart it on our website: Ordercustompaper.com

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