DATABASE A database is an organized collection of data. The data is typically organized to model aspects of reality in a way that supports processes requiring information. (1) Often abbreviated DB‚ a database is basically a collection of information organized in such a way that a computer program can quickly select desired pieces of data. You can think of a database as an electronic filing system. Traditional databases are organized by fields‚ records‚ and files. A field is a single piece of information;
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DVD‚ game‚ and video rental industry consists of companies that provide both mail-distributed and in-store or kiosk rentals. This does not include on-demand or online streaming rentals. 2011 industry revenue is projected to be $6.6 billion‚ with a profit of $243.5 million. This represents a 12.4% decline from 2010. The industry has been declining‚ and is projected to continue to do so‚ as a result of the increasing popularity of substitutes to hard copy DVD rental. Video on demand services
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requirement of the video system is as below. ------------------------------------------------- A video store system runs a series of fairly standard video stores. Before a video can be put on the shelf‚ it must be cataloged and entered into the video database. Every customer must have a valid customer card in order to rent a video. A customer rents the video for three days at a time. Every time a customer rents a video‚ the system must ensure that they do not have any overdue videos. If so‚ the overdue
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DISTRIBUTED DATABASE MANAGEMENT SYSTEM A distributed Database Management System (DDBMS) is a database in which storage devices are not all attached to a common processing unit such as the CPU. It may be stored in multiple computers‚ located in the same physical location; or may be dispersed over a network of interconnected computers. Unlike parallel systems‚ in which the processors are tightly coupled and constitute a single database system‚ a distributed database system consists of loosely coupled
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Description | example uses | Database could be when people in the the Leisure centre inputs the data or make different query’s like how much money they’ve made. This will speed up the process when working. It can store all the information for the activities and how many people attending specific classes. | advantages | A database can be really helpful for this business to grow in terms of: Customer & Service Analysis‚ Data Management‚ Reduce Costs & Time. Databases can also help businesses
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Date: 20150216 Class: DBM/380 Instructor: In this essay I’m going to be discussing what database systems are and how they are used. I will de speaking on and defining database architecture. I also will be discussing how database systems are used in my everyday life and at my workstation. We will start this off with the answer to “What is a database?”. A database is a compilation of related or like pieces of data. This information or data is gathered and maintained to serve
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Database Design Process Database Life Cycle Key points Database design must reflect the information system of which the database is a part Information systems undergo evaluation and revision within a framework known as the Systems Development Life Cycle (SDLC) Databases also undergo evaluation and revision within a framework known as the Database Life Cycle (DBLC) There are two general design strategies exist: top-down vs. bottom-up design centralized vs. decentralized design 2
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The Company Blockbuster‚ Inc. is a company that is a leader in video‚ disk rental. The company has about 27 percent of the U.S. market share; it operates about 6‚500 video stores‚ providing service to more than 87 million customers in the U.S. alone‚ and 25 other nations. The company maintains a database of over 43 million households with Blockbuster memberships all used to help customers select movies. Blockbuster origins date back to 1985‚ when the first Blockbuster store was open in Dallas.
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Database Environment Brandon Smith DBM/380 10-8-2012 Kenneth Hoskins Database Environment “A database is a structured collection of records or data that is stored in a computer system. In order for a database to be truly functional‚ it must not only store large amounts of record‚ but also be able to access those records fast and efficiently. In addition‚ new information and changes should also be easy to input.” (tech-faq.com) To be useful over a long term the database should be able
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on data or data items to supply some information about an entity. What is a Database? A database is an integrated and structured collection of stored operational data used (shared) by application systems of an enterprise Examples of Databases • Medical records • Bank accounts • Stock control • Telephone directories • Stock market prices Universe of Discourse A database is a model of some aspect of the reality of an organisation. It is conventional
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