MODULE: DATABASE DESIGN & DEVELOPMENT ASSIGNMENT TITLE: VETERINARY SURGERY DATABASE DEVELOPMENT Table of Content Task 1 Page 2 Task 2 Page 5 Task 3 Page 14 Task 4 Page 28 Task 5 Page 30 Reference Page 32 Bibliography Page 33 Task 1 Question: AIM: Draw an Entity Relationship Data Model that describes the content and structure of the data held by Petcare. Specify the cardinality ratio and participation constraint of each relationship type. Answer: I have prepared this assignment
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The Physical Data Model (PDM) describes how the information represented in the Logical Data Model is actually implemented‚ how the information-exchange requirements are implemented‚ and how the data entities and their relationships are maintained. There should be a mapping from a given Logical Data Model to the Physical Data Model if both models are used. The form of the Physical Data Model can vary greatly‚ as shown in Figure 31. For some purposes‚ an additional entity-relationship style diagram
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Chapter 5 Normalization of Database Tables Discussion Focus Why are some table structures considered to be bad and others good and how do you recognize the difference between good and bad structures? From an information management point of view‚ possibly the most vexing and destructive problems are created through uncontrolled data redundancies. Such redundancies produce update and delete anomalies that create data integrity problems. The loss of data integrity can destroy the usefulness
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data. • Mini-world: Some part of the real world about which data is stored in a database. For example‚ student grades and transcripts at a university. • Database Management System (DBMS): A software package/ system to facilitate the creation and maintenance of a computerized database. • Database System: The DBMS software together with the data itself. Sometimes‚ the applications are also included. ADBMS Lecture Notes 1: Prepared by Engr. Cherryl D. Cordova‚ MSIT 2 Evolution of Database System
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Chapter 1 1.1 Statement of the problem This thesis addresses the following problems related to service inefficiency and low productivity of the library staff in General Santos City Library especially‚ in the different transactions involving the patrons and in the preparation of the library’s regular and on-demand reports. Service efficiency related problems Inquiry/verification by a patron regarding availability of book takes time and hassle‚ as it requires browsing of the card catalogues or
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CLINIC MANAGEMENT SYSTEM NOORUL HUDA BINTI NOORLY This report is submitted in partial fulfillment of the requirements for the Bachelor of Computer Science (Database Management) FACULTY OF N ORMATION AND COMMUNICATION TECHNOLOGY UNIVERSITI TEKNIKAL MALAYSIA MELAKA 2007 ABSTRACT Clinic Management System for UTeM is a system that can help the clinic to manage their daily activity. This system help reduce the problems occur when using the manual system. This system enables doctors
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Week 2 Individual Database Design Paper Courtney Gardner DBM/380 05-17-2010 James Butcher Week Individual Database Design “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 records well‚ but be accessed easily. In addition‚ new information and changes should also be fairly easy to input (tech-faq.com)”. To ensure practical use over a long period of‚ databases
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DATABASES I 1 Chapter 4 The Relational Database Model Textbook p116-121 Study Unit: 4 2 In this chapter‚ you will learn: • What is meant by relational algebra? • How to manipulate database tables using relational set operators • How the DBMS supports the key relational operators: select‚ project and join. • The different types of joins. • How to write queries using relational algebra expressions. 3 Relational Algebra • Relational algebra and relational calculus are the mathematical
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By: 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
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lower SELECT statements. Answer: TRUE Diff: 2 Page Ref: 368-370 11) In the SQL statement: SELECT S1.CustName‚ S1.SalesRepNo FROM SALES S1; the "S1" is called an alias. Answer: TRUE Diff: 2 Page Ref: 369 12) In a correlated subquery‚ the DBMS can run the lower SELECT statement by itself and then send the results to the upper SELECT statement. Answer: FALSE Diff: 2 Page Ref: 368-370 13) In a
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