the most important concepts in relational database design. A basic understanding of these will be required to understand the rest of the article. * Primary Key (PK) A column with a unique value for each row. Although not all database management systems (DBMS) require you to put a PK into each table‚ from a design perspective a PK is a requirement. No table should be without one. * Foreign Key (FK) These define relationships between tables. When you want a row in one table to be linked to
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on Computer Science and Engineering Vol. 02‚ No. 08‚ 2010‚ 2616-2621 Design of a Hospital-Based Database System (A Case Study of BIRDEM) Rosina Surovi Khan Department of Computer Science and Engineering Ahsanullah University of Science and Technology (AUST) Dhaka‚ Bangladesh Email: surovi99@yahoo.com Abstract— As technology advances‚ information in different organizations of Bangladesh can no more be maintained manually. There is a growing need for the information to become computerized so that
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and Instruction[edit] In Discovering Computers 2007 a Gateway to Information‚ a computer based information system is described as the "collection of hardware‚ software‚ data‚ people‚ and procedures that work together to produce quality information". These information systems provide opportunities to improve student learning by providing alternate ways for learners to use technology in learning environments (Shelly‚ Cashman‚ Vermaat‚ Discovering Computers 2007)‚ and they enhance management capabilities
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TITLE PAGE COMPUTERIZED ASSET MANAGEMENT SYSTEM (A Generic Case Study) BY DEPARTMENT OF COMPUTER SCIENCE IN PARTIAL FULFILLMENT OF THE REQUIREMENT FOR THE AWARD OF NATIONAL DIPLOMA IN COMPUTER SCIENCE AUGUST 2008 CERTIFICATION This is to certify that this project being an original work was undertaken by --------------------------------------- ---------------------------- Project Supervisor Date --------------------------------------- -----------------------------
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files‚ along with the details of the interpretation of the data. A Data Base ManagementSystem is a software system or program that allows access to data contained in a database. The objective of the DBMS is to provide a convenient and effective method of defining‚ storing‚ and retrieving the information stored in the database. The database and databasemanagementsystems have become essential for managing business‚ governments‚ schools‚ universities‚ banks etc. 1.2 BASIC DEFINITIONS AND CONCEPTS In
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Computer in business Name Institution Database Software The acquisition of database software for business information management is a source of business leverage in the ever competitive business environment. The management of business information is made possible by the acquisition of efficient database software. Database software is the term that refers to the computer program that helps to enter‚ update‚ organize‚ retrieve‚ and report information held in a computer database. Among the
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This is the first argument that I would like to give against the motion. I agree that some aspects of the educational system are already provided by the computer and yes‚ it is definitely true that you don’t need a person to learn everything - education is a largely personal matter. However‚ if we eliminate the teacher-student interaction completely‚ a part of the educational experience will be lost. It’s not just the act of standing before a class that makes a teacher a teacher‚ there’s the whole
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Assignments Requirements 1. Look up the definition of functional dependency. Can you find a good example? In relational database theory‚ a functional dependency is a constraint between two sets of attributes in a relation from a database. Cars Suppose one is designing a system to track vehicles and the capacity of their engines. Each vehicle has a unique vehicle identification number (VIN). One would write VIN → Engine Capacity because it would be inappropriate for a vehicle’s engine to have
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PROBLEM AND REVIEW OF RELATED LITERATURE Introduction As computer technology changes at such fast phase‚ many businesses sectors try to cope up by upgrading computer system constantly in order to stay competitive. The multi function ability of technology for its advance system is also an important factor for a company to use software. It makes efficient use of the advance technology and has ambition to discover more. Computers have the great impact on the profession of accounting. With the
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Database Concepts‚ 4e (Kroenke) Chapter 1 Getting Started 1) The purpose of a database is to help people keep track of things. Answer: TRUE Diff: 1 Page Ref: 4 2) A possible problem with keeping data in lists is that if you delete a row of data from a list you may also delete some data items that you want to keep. Answer: TRUE Diff: 1 Page Ref: 4 3) An advantage of keeping data in lists is that if you update a data value in one row of data in a list‚ other occurrences
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