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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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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Chapter 11 Relational Database Design Algorithms and Further Dependencies Chapter Outline 0. Designing a Set of Relations 1. Properties of Relational Decompositions 2. Algorithms for Relational Database Schema 3. Multivalued Dependencies and Fourth Normal Form 4. Join Dependencies and Fifth Normal Form 5. Inclusion Dependencies 6. Other Dependencies and Normal Forms DESIGNING A SET OF RELATIONS Goals: Lossless join property (a must) Algorithm 11.1 tests
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10/09/14 Marius Ouambo 2520 Mohammed Suleiman Oak Brook Unit 3 Assignment 1 There are many database-naming conventions to choose. As I read each of them I wanted to make sure‚ I got the idea that they were trying to explain for each of the different conventions. Though some of them had‚ more guidelines than other I still took into account all of the instructions because some of them did repeat each other with certain things. The convention that made the most sense to me is the
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INTRODUCTION TO DATABASE MANAGEMENT SYSTEMS By Mohammed Sanaulla Khan SID: 1120297 Mohammed Mudassaruddin SID: 1111422 Abstract A collection of programs that enables you to store‚ modify‚ and extract information from a database. There are many different types of DBMSs‚ ranging from small systems that run on personal computers to huge systems that run on mainframes. The following are examples of database applications: ✓ computerized library systems ✓ automated teller machines
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MODERN DATABASE MANAGEMENT - Database o An organized collection of logically related data. o May be any size and complexity. - Data o A stored representation of objects and events that have meaning and importance in the user’s environment. o Become useful when placed in some sort of context. o Structured • Facts such as the customer name‚ address‚ and telephone number. • The most important structured data types are numeric‚ character‚ and dates. • Stored in tabular form • Found
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Access Case: Dentist’s Office Brief: You will create an Access Relational Database for a dentist’s office. Database Objects: Tables: 1. Patients – keeps a track of patient information (Create at least 7 patients). 2. Dental Procedures – The dentist has 5 procedures. Procedure No. Procedure Type Rate 1 Cleaning Rs.1000.00 2 Crown Rs. 2000.00 3 Filling Rs. 2000.00 4 Root Canal Rs. 3000.00 5 X-Ray Rs. 700.00 3. Appointment – keeps a track of the each appointment‚ Patient‚ Date
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Chapter 1: Database Systems Summary • Data are raw facts. Information is the result of processing data to reveal their meaning. Accurate‚ relavant and timely information is the key to good decision making and good decision making is the key to organizational survival in a global environment • Data are usually stored in a database. To implement a database and manage its contents you need a database management system (DBMS). DBMS serves as an intermediary between the user and the
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Database Design Paper DBM/380 Database Systems in the Workplace A database system is a computer term for a structured set of data that can be saved‚ retrieved‚ added to or deleted from relatively easy. There are a variety of different databases and the type of database will determine how the data is arranged when it is stored and how that data will be located when it is called upon. At the company that I work for I know that they use Oracle®‚ which is an object-relational database
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91.3902 Database Systems Assignment #1 1. Discuss the role of a high-level data model in the database design process. High-level data models assist in conceptual design and helps express data requirements of the users and includes detailed descriptions of the entity types‚ relationships‚ and constraints. The high-level data model is also used as a reference to ensure that all users’ data requirements are met and that the requirements do not include conflicts. 2. List the various
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