Wednesday, May 6, 2020

Key Issues And Applications Of Databases Within Organisations

TASK 1 – Analysis of key issues and applications of databases within organisations a) Analyse the following key issues of databases within organisational environments: †¢ Integrity †¢ Security †¢ Legislation †¢ Recovery †¢ Industry standards (e.g. Microsoft SQL, Oracle, Sybase, MySQL) There are several issues and applications of databases within organisations. It is important to know these in order to design a good database. Integrity Data integrity can be defined as â€Å"The accuracy and consistency of stored data, indicated by an absence of any alteration in data between two updates of a data record.† (http://www.businessdictionary.com, 23/01/15) Data integrity can be degraded due to â€Å"invalid data, redundant data, and inconsistent data.†(Database Security and Auditing, Page 11) These degradations could be the result of: †¢ User entering invalid data mistakenly or due to incompetence. †¢ Application code not validating inputted data. †¢ Faulty design that does not conform to normalisation standards. †¢ Errors that occur when data is transmitted from one computer to another. †¢ Software bugs or viruses. †¢ Hardware malfunctions, such as disk crashes. †¢ Fires, floods and other natural disasters. 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