focuses on the relational model‚ you might be tempted to conclude that the ERM is exclusively a relational tool. Actually‚ conceptual models such as the ERM can be used to understand and design the data requirements of an organization. Therefore‚ the ERM is independent of the database type. Conceptual models are used in the conceptual design of databases‚ while relational models are used in the logical design of databases. However‚ because you are now familiar with the relational model
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TRANSACTIONAL VS TRANSFORMATIONAL LEADERSHIP The concept of transformational leadership‚ which is a constituent of Bass and Avolio’s “full range leadership theory”‚ is one in hundreds of the most world-wide researched paradigms in the fields of leadership and have showed material accuracy for assigning probability to a number of outcomes including leader performance and productiveness rating in addition to follower gratification and stimulation. Transformational leaders act as advisers to their
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CHAPTER I I. INTRODUCTION Without us noticing it‚ our world has been change by technology in all possible ways Our daily works is now more convenient through the use of high-end devices that are newly developed and some have been updated even before it has been introduced to the public‚ and much more. These developments aim to better utilize the existing resources and maximize their uses to be able to bring out new or better products or outputs. Computerization is synonymous to the word automation
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The Outsiders Most Dynamic Character The most dynamic character in the book The Outsiders is Ponyboy Curtis. Throughout the course of the book his actions‚thoughts‚and things he said‚ lead me to believe the he is the most dynamic character. This is true for many reasons‚ first at the beginning of the book he needed to be protected‚ but towards the end of the book he was able to protect himself. Furthermore Ponyboy changed his views toward Dallas during the book‚ lastly he realizes that
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1 Introduction Database is any collection of data or information‚ that is specially organized for rapid search and retrieval by a computer. Databases are structured to facilitate the storage‚ retrieval‚ modification‚ and deletion of data in conjunction with various data-processing operations. A database consists of a file or a set of files. The information in these files may be broken down into records‚ each of which consists of one or more fields. Fields are the basic units of data storage
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Databases | Database Construction and Management 1. What is a database? A database is one or more large structured sets of persistent data‚ usually associated with software (database management system) to update and query the data. A simple database might be a single file containing many records‚ each of which contains the same set of fields where each field is a certain fixed width - From FOLDOC A database is a collection of data elements (facts) stored in a computer in a systematic way
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_________ relational type is the “relational ideal.” | 1:1 | M:1 | 1:M | M:N | Any attribute that is part of a key is known as a __________. | Key attribute | Key determiner | Logical attribute | Selector | The attribute B is _________ the attribute A if each value in column A determines one and only one value in column B. | Logically dependent on | Determined by | Owned by | Functionally dependent on | All primary key entries are unique‚ and no part of a primary key may be __________
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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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Chapter 1: Database Systems Summary • Data are raw facts. Information is the result of processing data to reveal their meaning. Accurate‚ relavant and timely information is the key to good decision making and good decision making is the key to organizational survival in a global environment • Data are usually stored in a database. To implement a database and manage its contents you need a database management system (DBMS). DBMS serves as an intermediary between the user and the
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Database Management System Introduction A database management system is a computer based system to manage a database‚ or a collection databases or files. The essential word here is manage management implies the controlled use of a resource‚ that is controlling its quality coordinating shared use‚ of a resource‚ that is‚ controlling its quality‚ coordinating shared use and controlling access to authorized users. A DBMS has many uses: - it enables users to access and manipulate the database
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