Database Modeling and Design: Logical Design 4th Edition Toby Teorey‚ Sam Lightstone‚ Tom Nadeau Lecture Notes Contents I. Introduction ................................................................………...……2 Relational database life cycle 3 Characteristics of a good database design process 6 II. The Entity-Relationship (ER) Model …………...……………….7 Basic ER concepts 7 Ternary relationships 11 III. The Unified Modeling Language (UML)………...…………….13 Class diagrams 13 Activity
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SQL INTRODUCTION Diaz‚ Francis Lorenzo A. BSM CS 3B G2 History of SQL SQL began life as SEQUEL11‚ the Structured English Query Language‚ a component of an IBM research project called System/R. System/R was a prototype of the first relational database system; it was created at IBM’s San Jose laboratories by Donald D. Chamberlin and Raymond F. Boyce in 1974‚ and SEQUEL was the first query language to support multiple tables and multiple users. In the late 1970s‚ SQL made its first appearance in
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Service Request SR-rm-022 - HR System Analysis Robert Tursugian BSA 375 - Fundamentals of Business Systems Development April 15‚ 2013 Didier Opotowsky Service Request SR-rm-022 - HR System Analysis Abstract Riordan Manufacturing is an organization that manufactures plastics. The organization has sites throughout the United States of America‚ and one manufacturing plant in China. The decision to enhance and upgrade the Human Resources (HR) department system was inevitable. With various
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Service Request SR-HT-001 Huffman Trucking Name CMGT/442 January 29‚ 2014 Instructor Service Request SR-HT-001 Huffman Trucking The purpose of this service request is to address identify and address the concerns that Huffman Trucking may incur if implementing a Benefits Election System. K. Huffman started Huffman Trucking in 1936 in the city of Cleveland‚ Ohio. Although the company started out with only one tractor-trailer it has grown considerably over the years. The need for more carrier
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Databases in My Organization CIS319: Computers and Information Systems Abstract Databases have been in use since the early days of computing programs. An Information Technology services company‚ such as Getronics‚ not only utilizes databases for information and record management‚ it earns revenue by providing database management services. Getronics uses Microsoft SQL Server 2000 as its database software. The clients that contract Getronics for Information Technology services rely and
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The Effects of Internet in College Students Study Time Management Aniris M. Fernandez Towson University Abstract The study time management skills of college students are very poor due to the addiction teenagers are confronting with Internet and social network sites. This problem is affecting their capacity to organize themselves and as a consequence grades are dropping. Experts are analyzing and studying the way in which students are using the Internet and its social networks and many of the
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MY SUCCESS IN COLLEGE Time is a valuable resource that leads to chaos and disorder when mismanaged. Time management is the ability to do the right thing at the right time‚ in the right manner and at the right place. Success is a goal that has accomplished its intended purpose. Thus time management enables me to get my work together‚ prepare for the future and be organized in the best possible and most effective way in order to accomplish a set goal. There are therefore numerous ways in which my
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SIMPLE SALES AND INVENTORY DATABASE SYSTEM FOR SMALL AND MEDIUM ENTERPRISE S.Y.2013-2013 A Thesis Presented to The Faculty of the College of Industrial Technology and Engineering Cebu Technological University Barili Campus-Cagay‚Barili‚Cebu In Partial Fulfillment of the Requirements for the Degree Bachelor of Science in Industrial Technology Aliño‚Clyde Montemayor ‚Analyn Trasmonte‚ Vicente Hermosa‚Airev Carreon‚Juan Encabo‚Christopher Alquizalas‚Jhon Renan Alcaya
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Research Paper Comparison of the Enterprise Functionalities of Open Source Database Management Systems April 26‚ 2005 Herausgeber und Urheber Fabalabs Software GmbH‚ Honauerst. 4 A-4020 Linz Bearbeiter: Dipl.-Ing. Daniel Fallmann Dipl.-Ing. Helmut Fallmann Dipl.-Ing. Andreas Pramböck Horst Reiterer Dipl.-Ing. Martin Schumacher Dipl.-Ing. Thomas Steinmaurer Univ.-Prof. Dr. Roland Wagner Research Paper Page 1 Copyright © Fabalabs Software GmbH‚ 2004-2005‚ Honauerstr. 4 A-4020 Linz Index
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1. Describe the relations that would be produced by the following relational algebra operations a) ПhotelNo(σprice>100(Room)) It will produce a single attribute (hotelNo) giving the number of hotels room prices greater 100. b) σHotel.hotelNo=Room.hotelNo(Hotel X Room) A join produce of hotel and room containing all the attributes of both. c) ПhotelName(Hotel Hotel.hotelNo=Room.hotelNo (σprice>100(Room))) It is a join of hotel and room with the price greater than 100. d) Guest(σdateTo>’1-June-12’(Booking)
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