The database development Process Vamsinadh Machavarapu IST 7000 Wilmington University Table Of Contents Introduction...........................................................................................3 SDLC Phases.........................................................................................3 • Requirements Analysis...................................................................4 • Database Design..............................................
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Modern Database Management – CGS1540 Exam 1 Study Guide ------------------------------------------------- Chapter 1: The Database Environment and Development Process Data – Facts, text, graphics, images, etc./stored representations of objects and events that have meaning and importance in the user’s environment Database – application program(s)/an organized collection of logically related data Constraint – a rule that cannot be violated by database users/ Repository – centralized
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Management Information Systems MANAGING THE DIGITAL FIRM, 12TH EDITION GLOBAL EDITION Chapter 6 FOUNDATIONS OF BUSINESS INTELLIGENCE: DATABASES AND INFORMATION MANAGEMENT Management Information Systems CHAPTER 6: FOUNDATIONS OF BUSINESS INTELLIGENCE: DATABASES AND INFORMATION MANAGEMENT Learning Objectives • Describe how the problems of managing data resources in a traditional file environment are solved by a database management system • Describe the capabilities and value of a database
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Final Exam Review Below are the review questions for your final exam. You MUST complete this as it is a part of your final exam equaling total of 10 points. Each question must be answered with at least 3 sentences, clearly demonstrating an understanding of the question asked. This is due on the final day in class prior to the final exam. Questions 1. What is a database? Describe the 3 main types discussed in the book. * Is a collection of related data. * Doesn’t have to be electronic;
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' • View of Data • Data Models Chapter 1: Introduction $ $ • Purpose of Database Systems • Data Definition Language • Data Manipulation Language • Transaction Management & ' & • Storage Management • Database Administrator • Database Users • Overall System Structure 1.1 Silberschatz, Korth and Sudarshan c 1997 Database Systems Concepts Database Management System (DBMS) • Collection of interrelated data • Set of programs to access the data • DBMS contains information about a particular
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reduancy refers to what database condition? The same data is recorded in more than one place in the same database. which best defines the function of a primary key uniquely identify the record what best describes the function of a foreign key. the primary key repeated in another table to show relation a database entity can be best described as: something that the something the database is concerned for, and can be added into the database which best defines the term database requirement? something
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is a key to mastering a key theme, REA modeling. As we progress through this refresher, please pay close attention to the objectives being covered as you see on the screen. The objectives are as follows: problems inherent in the flat file approach to data management that gave rise to the relational database concept, relationships among the defining elements of the relational database environment, stages in database design, entity identification, data modeling, constructing the physical database, and
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Stored Procedures and Views • Do not preface a stored procedure with sp_. Commonly accepted prefixes are: 1. sp or s (vw or v for views) 2. s21 where the 21 refers to the program number that uses this SP. This has the advantage of keeping all SP's for program 21 together. • The balance of the name should include a description of its action, e.g. 1. UpdateInvoice (note the use of Proper Case and no underscores) 2. InsertEmployee 3. SelectCustomer 4. FindInvoiceItem User Defined
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Review Questions 1. What are the problems of managing data resources in a traditional file environment and how are they solved by a database management system? List and describe each of the components in the data hierarchy. Figure 6–1 shows the data hierarchy. The data hierarchy includes bits, bytes, fields, records, files, and databases. Data are organized in a hierarchy that starts with the bit, which is represented by either a 0 (off) or a 1 (on). Bits can be grouped to form a byte to
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USE OF DATA ANALYSIS IN MODELING Use of Data Analysis in Modeling Michael Matthews CIS 331: System Modeling Theory Strayer University Mark O’Connell, PHD March 5, 2013 The term “model” refers to a process of creating a representation of reality and working with this simplified representation in order to understand or control some part of the world (Barker, Powell 2004 pg. 11). A model can be used in varies ways such as business plains, forming a database, or building a structure.
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