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Databases

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by

Devin Jackson

on 27 May 2013

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Transcript of Databases

By: Devin Jackson DATABASES What is a database? A database is a collection of records or data that is stored in a computer system Purposes/Uses of databases Computer Databases A computer database relies on software to organize the data and how it is stored and retrieved. Database Management Systems Database management systems (DBMS) are categorized according to the database model that they support. The type of software used for this is called a database management system (DBMS). The model determines the query languages available to access the database. Query languages determine how the data is retrieved, manipulated and then used to make business decisions. Other important issues that a DBMS addresses include managing performance, concurrency, integrity, and recovery from hardware failures. The data is arranged for easy and quick searching and retrieval. There are databases in every aspect of everyday living. You can create a database to keep track of just about anything-from your video game collection, recipes, contacts and the inventory for a business. Purposes/Uses of databases Databases for businesses Inventory, order processing, payroll, accounting, shipping and transportation routing are usually tracked using a main database that keeps the company functioning. The business world depends on databases 24 hours a day/seven days a week. Here is an example of user authorization used in a database. This database could be used by a business such as Target or Walmart to help keep track of inventory and sales. Wedding invitation lists, tax expense records and club member names and addresses Office workers Businesses Government agencies Academic researchers
Libraries and other research resources -To prevent unauthorized data observation. Importance of Database Security -To prevent unauthorized data modification. - To ensure the data is kept confidential. -To make sure the data integrity is preserved. -To make sure only the authorized user has access to the data. Thanks For Watching Thanks for Watching
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