History of Relational Database Hao-Wei He Wilmington University October 9‚ 2010 Abstract Database system have been inseparable with our daily life‚ since IBM developed the hierarchical database management system in 1969‚ database system has been innovated many times‚ such as hierarchical database‚ network database‚ relational database‚ and object-oriented database. Nowadays‚ relational database still is the most popular model used by different industries; this article is going to introduce
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Analyzing Data Using Pivot Tables – An Example Remember assignment 5 where you were asked to compare Invoice amounts to Sales Order amounts? You had to create a query to join together 2 tables from an Access database. If the results of that query had been downloaded into an Excel file (a simple thing to do)‚ you could have used the Excel file and a Pivot table to help in the analysis. Before you try to follow this example‚ you should learn as much as you can about Pivot Tables from Microsoft’s
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Data Mining Weekly Assignment 6: LIFT; CRM; AFFINITY POSITIONING; CROSS-SELLING AND ITS ETHICAL CONCERNS. What is meant by the term “lift”? The term “lift” describes the improved performance of an exact or specific amount of effort on a modeled sampling‚ as opposed to a random sampling (Spang‚ 2010). In other words‚ if you are able to market via a model to say‚ a given number of random customers (e.g. 1000)‚ and we expect that 50 of them would be successful‚ then a model that can generate 75
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Case Study On Harrah’s Big Database Gamble Submitted By: Pratik Mohire HARRAH’S BIG DATABASE GAMBLE BRIEF ABOUT THE CASE Harrah’s is the world largest provider of branded casino entertainment; it has around 25 million customers (2001) 25 casino with 40‚000 gambling machines in 12 states. For years it had been a fairly small gambling company but‚ by 2001‚ had emerged as the second largest in the industry. By the mid-1990s‚ the gambling Business was flourishing
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Virus Protection This can improve a computers performance because it means when you go on the internet you don’t download any viruses off the internet and that means your computer doesn’t become slow because of these viruses so it speeds it up. Recommend virus protection because it can save your computer from viruses and that is a massive benefit because it means you can keep your work and any personal details that you have on your computer so it saves your computer and plus saves you from losing
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providing service to more than 87 million customers in the U.S. alone‚ and 25 other nations. The company maintains a database of over 43 million households with Blockbuster memberships all used to help customers select movies. Blockbuster origins date back to 1985‚ when the first Blockbuster store was open in Dallas. Currently Blockbuster is a world-class company operating with thousands of locations and billions of dollars in revenue. Throughout this paper‚ the database management of Blockbuster
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chapter 10 The REA Approach to Database Modeling T his chapter examines the resources‚ events‚ and agents (REA) model as a means of specifying and designing accounting information systems that serve the needs of all of the users in an organization. The chapter is comprised of three major sections. The first introduces the REA approach and comments on the general problems associated with traditional accounting practice that can be resolved through an REA approach. This section presents the REA
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activity-based management‚ and flexible budgeting‚ the operational review is the tool best used to perform an evaluation of these crucial three e’s-economy‚ efficiency‚ and effectiveness. (a) The 3Es model Definition The 3Es model is a tool used by managers to assess performance visa vie the inputs injected in terms of the outputs obtained. According to Coombs and Jenkins (2002) due to pressure exerted on the managers of the public sector they are forced to deliver value for money which can be defined
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Hospital-Based Database System (A Case Study of BIRDEM) Rosina Surovi Khan Department of Computer Science and Engineering Ahsanullah University of Science and Technology (AUST) Dhaka‚ Bangladesh Email: surovi99@yahoo.com Abstract— As technology advances‚ information in different organizations of Bangladesh can no more be maintained manually. There is a growing need for the information to become computerized so that it can be suitably stored. This is where databases come into the picture. Databases are convenient
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Data Mining Information Systems for Decision Making 10 December 2013 Abstract Data mining the next big thing in technology‚ if used properly it can give businesses the advance knowledge of when they are going to lose customers or make them happy. There are many benefits of data mining and it can be accomplished in different ways. The problem with data mining is that it is only as reliable as the data going in and the way it is handled. There are also privacy concerns with data mining
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