Anything about which the organization wants to collect and store information is called a. a data model. b. an entity. c. a schema. d. a tuple. e. none of above 1 points Question 2 The __________ in the REA model include all of the organization’s business activities. a. resources b. events c. agents d. entities e. evolution 1 points Question 3 How many types of relationships are possible between entities? a. one b. two c. three d. an infinite number e. an odd number
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Designing Databases: Building a Conceptual Data Model [1] Fundamentals of Databases Alvaro A A Fernandes School of Computer Science University of Manchester Acknowledgements 2 These slides are minor adaptaAons of material authored and made available to instructors by Ramez Elmasri
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as the owner of a relation? What privileges does the owner of a relation have? Ans: An "owner" account is given to those in control of specific relations. They have select‚ modification‚ and reference privileges on that given relation. 2) How is the view mechanism used as an authorization mechanism? Ans: A multiuser database system must selectively permit users to share data‚ while retaining the ability to restrict data access. There must be a mechanism to provide protection and security‚ permitting
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DATABASE A database is a collection of data organized to meet users’ needs. Why This Matters Without data and the ability to process it‚ an organization would not be able to successfully engage in business activities‚ nor would it be able to generate reports to support knowledgeable workers and decision makers which in turn help’s to achieve organizational goals; it would not be able to pay employees‚ send out bills‚ and order new inventory. Databases have made it possible to map the structure
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HISTORY OF DATABASE MANAGEMENT SYSTEM With the progress in technology in the areas of processors‚ computer memory‚ computer storage and computer networks‚ the sizes‚ capabilities‚ and performance of databases and their respective DBMSs have grown in orders of magnitudes. The development of database technology can be divided into three eras based on data model or structure: navigational‚ SQL/relational‚ and post-relational. The two main early navigational data models were the hierarchical model
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CHAPTER 4 RELATIONAL DATABASES SUGGESTED ANSWERS TO DISCUSSION QUESTIONS 4.1 Contrast the logical and the physical view of data and discuss why separate views are necessary in database applications. Describe which perspective is most useful for each of the following employees: a programmer‚ a manager‚ and an internal auditor. How will understanding logical data structures assist you when designing and using database systems?</para></question><question
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Schema Theory and Learning ESL/EFL Considerable attention has been devoted in recent theories of second language acquisition to learners ’ background knowledge. One of the important theories of learning is called schema theory‚ which has used in many studies as it has a great unique impact. This is because of its influence on perception and learners ’ memory. The significance of schematic knowledge is now widely acknowledged in foreign language teaching and many researches in the schema-oriented
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INTRODUCTION Ever since I have read turing test‚ AI and robotics have always fascinated me. I always wondered how a computer can compete human intelligence. When the first robot‚ its name‚ was commercially launched my fascination turned into the passion to take up research in the subject. Thus‚ I took up AI & Robotics as my research topic. AI is a branch of computer science‚ which deals with the study‚ and creation of computer systems that exhibit some kind of intelligence. Intelligent
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A Database Project for Trinity University Canteen Submitted in Partial Fulfilment of the requirements for the Course INTE_204 (Systems Analysis & Design) By: Wilbourne N. Lomboy Roven Gareth G. Juarez Oct. 10‚ 2013 Chapter 1 Background of the Project Introduction Concessionaires converge at the two-storey University Canteen to give students a wide array of choices for snacks and meals. Presented fast-food style‚ students serve themselves
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ANALYSIS OF ACCOUNTING INFORMATION SYSTEM -A study on PREMIER BANK LTD‚ Jubliee Road Branch. [THIS INTERNSHIP REPORT IS SUBMITTED FOR FULFILLMENT OF THE DEGREE OF BACHELOR OF BUSINESS ADMINISTRATION WITH A MAJOR IN ACCOUNTING] Submitted by TAJKIATUL JANNAT MATRIC NO: B093268 MAJOR: ACCOUNTING PROGRAM: BBA SEMESTER: SPRING 2014 Internship Duration: 2nd March 2014 to 5th May 2014. Date of Submission: 25th May‚ 2014 Department of Business Administration Faculty of
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