DATABASE One of the technology terms that most people have become accustomed to hearing either at work or while surfing the Internet is the database. The database used to be an extremely technical term‚ however with the rise of computer systems and information technology throughout our culture‚ the database has become a household term. 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
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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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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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1 Individual Assignment: Database Management Systems Paper Write a 1-2 page paper in which you do the following: * Explain what database systems are and how they are used at your workplace. * Define database architecture. For the database systems in your workplace‚ identify which architecture they fall under. * Define relational database architecture. Consider Microsoft® Access®‚ Microsoft SQL Server®‚ Oracle®‚ IBM DB2®‚ and so on. Format your paper consistent with APA guidelines‚ and
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Meghan Glass 11/21/2014 Exercise 11 Article for exercise: Troy‚ N. W.‚ & Dalgas-Pelish‚ P. (2003). The effectiveness of a self-care intervention for the management of postpartum fatigue. Applied Nursing Research‚ 16 (1)‚ 38–45. 1. What demographic variables were measured at least at the interval level of measurement? I think marital status should have been because postpartum moms that are single are going to have a higher level of fatigue due to less help‚ whereas moms that are married will have
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Workshop 4 Database Administration Tools There are three types of Database Administration Tools‚ Oracle Enterprise Manger‚ Microsoft SQL Server Enterprise Manager and Sybase Central. This paper will discuss each one. The database tool and utility applications are the primary administrative components of Oracle Enterprise Manager. You can use these applications to perform most of your DBA administration tasks. Some of the design features of the applications allows you to use the graphical interface
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Jaynet spends $30‚000 per year on painting supplies and storage space. She recently received two job offers from a famous marketing firm- one offer was for $110‚000 per year‚ and the other was for $80‚000. However‚ she turned both jobs down to continue a painting career. If Jaynet sells 25 paintings per year at a price of $8‚000 each: a. What are her accounting profits? Accounting profits are equal to the total amount of money taken in sales‚ income or/ and revenues minus the dollar cost of production
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Files and Relational Databases What is a file? • contains groups of records used to provide information for operations‚ planning‚ management and decision making. • can be used for storing data for an indefinite period of time‚ or they can be used to store data temporarily for a specific purpose. FILE TYPES • Master Files -- contain records for a group of entities. The attributes may be updated often‚ but the records themselves are relatively permanent. These files
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Apply the database development cycle to a given data set Database development creates enterprise data modeling‚ which forms the range and wide-ranging contents of organizational databases. There are 5 phases in Database Development Cycle: Planning; Analysis; Design; Implementation and Maintenance. Planning In Planning Stage‚ the organization needs to know why do they need the database; what do they want the database to do; and how are they going to make the database. This is also where the
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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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