phase main deliverable from each phase Centralized vs Distributed Processing Unit Testing Integration Testing System Testing Chapter 11 Database Database Models Hierarchical Network Multi-dimensional Relational O-O Object-Relational DBMS Data Warehouse Data Mining Cardinality XML Normalization Primary Key Foreign Key SQL create database/table add‚ modify‚ delete data retrieve‚ join data Chapter 12 High-Level vs. Low-Level Languages 1st‚ 2nd‚ 3rd‚ 4th‚ and 5th Generation
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DATABASE MANAGEMENT SYSTEM (DBMS) A Database Management System (DBMS) is a software program that typically operates on a database server or mainframe system to manage structured data‚ accept queries from users‚ and respond to those queries. A typical DBMS has the following features (Stair and Reynolds‚ 2004): Provides a way to structure data as records‚ tables‚ or objects Accepts data input from operators and stores that data for later retrieval Provides query languages for searching‚ sorting
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publicly accessible website‚ in whole or in part. 2 Learning Objectives In this chapter‚ you will learn: About flaws in file system data management The main components of the database system The main functions of a database management system (DBMS) ©2015 Cengage Learning. All Rights Reserved. May not be scanned‚ copied or duplicated‚ or posted to a publicly accessible website‚ in whole or in part. 3 Data vs. Information Data Raw facts Raw data - Not yet been processed to reveal the
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Introduction Objectives Objectives Upon completion of this chapter‚ you should be able to: Define security Describe Describe an information system and its components Define database management system functionalities Outline the concept of information security Identify the major components of information security architecture Define database security Describe security methods Security Security Definition Security is defined as the level and degree of being free from danger and
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| | | | | | | | | |Information Technology Department | | | |SCHOOL OF INFORMATION AND TECHNOLOGY
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Short Answered Questions: 1. What is the purpose of having foreign key(s) in a relational database table? i. Represent a relationship between tables ii. Foreign key in one table has the same value‚ referencing another table’s primary key iii. Referential integrity 2. What is the purpose of having a primary key in the relational database table? i. Primary key is used as a unique identifier to represent the data in that row. ii. It is also used to provide
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misusing the funds. One of the biggest flaws with the current system is that the lawmakers‚ including the senators and the representatives‚ are responsible for deciding which agencies and beneficiaries the appropriated allowance will go to. Even if the DBM (Department of Budget and Management) will directly release the funds to the respective NGOs and implementing agencies‚ these agencies were personally handpicked by the legislators. This means that they could have picked their “favorite” NGOs‚ set-up
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By Arun Sen and Atish P. Sinha A Comparison of Data Warehousing Methodologies Using a common set of attributes to determine which methodology to use in a particular data warehousing project. DATA INTEGRATION TECHNOLOGIES have experienced explosive growth in the last few years‚ and data warehousing has played a major role in the integration process. A data warehouse is a subjectoriented‚ integrated‚ time-variant‚ and nonvolatile collection of data that supports managerial decision making
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with which we are all familiar. How does this concept apply to electronic business and the emergence of the digital firm? Support your contentions. (Points : 25) 8. (TCO C) List and describe three main capabilities or tools of a DBMS. (Points : 25)
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Kudler Dimensional Model Hands-On-Project Erwin Martinez DBM-460 March 14‚ 2011 Daniel McDonald Kudler Dimensional Model Hands-On-Project Kudler is looking for ways to increase sales and customer satisfaction. To achieve this goal Kudler will use data mining tools to predict future trends and behaviors to allow them to make proactive‚ knowledge-driven decisions. Kudler’s marketing director has access to information
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