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    DataBase Concepts DataBase – a collection of information related to specific entity (e.g. organization‚ bank‚ college‚ library etc.) DBMS – (Database management system) – a application through which we can control the database i.e. we can store data into database‚ update the data and delete also we can retrieve the data from database. For doing these operation DBMS support a language called Structured Query language (SQL). SQL accomplishes many powerful tasks with a mere seven statements: SELECT

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    Download at www.eBook12.Com Download at www.eBook12.Com This page intentionally left blank Download at www.eBook12.Com Introduction to Database Management Mark L. Gillenson‚ Paulraj Ponniah‚ Alex Kriegel‚ Boris M. Trukhnov‚ Allen G. Taylor‚ and Gavin Powell with Frank Miller Download at www.eBook12.Com Credits PUBLISHER Anne Smith ACQUISITIONS EDITOR Lois Ann Freier MARKETING MANAGER Jennifer Slomack SENIOR EDITORIAL ASSISTANT Tiara Kelly PRODUCTION MANAGER Kelly Tavares PRODUCTION

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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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    Question 1 5 of 5 points   An alternative to combining tables by a subquery is to use a join. Selected Answer: True   Question 2 5 of 5 points   Regarding the interchangeability of subqueries and joins‚ Selected Answer:    a join can sometimes be used as an alternative to a subquery‚ and a subquery can sometimes be used as an alternative to a join.   Question 3 5 of 5 points   When making an SQL query‚ we are using SQL as a(n) ________. Selected

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    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 information to be accessed only by properly authorized users. Further

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    1 Chapter 1 Database Systems Database Systems: Design‚ Implementation‚ and Management‚ Seventh Edition‚ Rob and Coronel 1 1 In this chapter‚ you will learn: • The difference between data and information • What a database is‚ what the different types of databases are‚ and why they are valuable assets for decision making • The importance of database design • How modern databases evolved from file systems Database Systems: Design‚ Implementation‚ & Management‚ 7th Edition‚ Rob

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    DATABASE: A database is an organized collection of data. The data is typically organized to model relevant aspects of reality (for example‚ the availability of rooms in hotels)‚ in a way that supports processes requiring this information (for example‚ finding a hotel with vacancies). A general-purpose database management system (DBMS) is a software system designed to allow the definition‚ creation‚ querying‚ update‚ and administration of databases. Well-known DBMSs include MySQL‚ PostgreSQL‚ SQLite

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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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    Database concepts | Assignment 1 | | Robyn Wright | 3/27/2013 | | Contents Introduction 2 Task 1 3 1.1 Definition of database management system 3 1.2 5 Advantages of database management system 3 1.3 3 Business functions database management system could do 3 1.4 5 database management system packages 3 1.5 10 Factors when choosing a database management system 3 Task 2 5 2.1 Create a database if it does not yet exist 5 2.2 Show if the database has been

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    Concurrency Control in Distributed Database Systems PHILIP A. BERNSTEIN AND NATHAN GOODMAN Computer Corporation of America‚ Cambridge‚ Massachusetts 02139 In this paper we survey‚ consolidate‚ and present the state of the art in distributed database concurrency control. The heart of our analysts is a decomposition of the concurrency control problem into two major subproblems: read-write and write-write synchronization. We describe a series of synchromzation techniques for solving each subproblem

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