HISTORY OF DATABASE MANAGEMENT SYSTEM With the progress in technology in the areas of processors‚ computer memory‚ computer storage and computer networks‚ the sizes‚ capabilities‚ and performance of databases and their respective DBMSs have grown in orders of magnitudes. The development of database technology can be divided into three eras based on data model or structure: navigational‚ SQL/relational‚ and post-relational. The two main early navigational data models were the hierarchical model
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PROJECT MANAGEMENT Carlos A. Olin Assignment 1: Creating a Methodology BUS375: Project Management Professor: Frank Mitchell Date: 7/14/2014 In an ever changing‚ competitive environment‚ a business must ensure that it markets itself in a competitive manner showing the potential clients that it not only strives to be the best in its field‚ but also has something to offer that other businesses do not possess. In other words‚ the business must be ahead of the curve in
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Exercises 9 address driver-id person name owns license model year car report-number location date driver participated accident damage-amount Figure 2.1 E-R diagram for a Car-insurance company. Exercises 2.1 Explain the distinctions among the terms primary key‚ candidate key‚ and superkey. Answer: A superkey is a set of one or more attributes that‚ taken collectively‚ allows us to identify uniquely an entity in the entity set. A superkey may contain extraneous attributes
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Concurrency Control in Distributed Database Systems PHILIP A. BERNSTEIN AND NATHAN GOODMAN Computer Corporation of America‚ Cambridge‚ Massachusetts 02139 In this paper we survey‚ consolidate‚ and present the state of the art in distributed database concurrency control. The heart of our analysts is a decomposition of the concurrency control problem into two major subproblems: read-write and write-write synchronization. We describe a series of synchromzation techniques for solving each subproblem
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Designing Databases: Building a Conceptual Data Model [1] Fundamentals of Databases Alvaro A A Fernandes School of Computer Science University of Manchester Acknowledgements 2 These slides are minor adaptaAons of material authored and made available to instructors by Ramez Elmasri
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INTRODUCTION Mens rea is a technical term‚ generally taken to mean some blameworthy mental condition‚ the absence of which on any particular occasion negatives the condition of crime. It is one of the essential ingredients of criminal liability.’ A criminal offence is committed only when an act‚ which is forbidden by law‚ is done voluntarily. The term mens rea has been given to the volition‚ which is the motive force behind the crinjinal act.2 An act becomes criminal only when it is done with guilty
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Methodology deals with the methods‚ techniques‚ and procedures used to collect and analyse failures. It shows the vulnerable areas in which need to be addressed or guarded against. Methodology is the compiled list of practice‚ and development of knowledge‚ and the execution of steps and procedures in experiments and empiricism. Waterfall Model The Waterfall software development methodology is one of the most widely known and recognized methodologies. Originally designed for the manufacturing
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Methodology The purpose of this study is to assess the benefits that microfinance brings to the residents of Marikina City. Especially the three cooperatives we are focusing on. The purpose of this chapter are to describe research design‚ provide the population we need to consider‚ the sampling techniques to be implemented and explain the research instrument and statistical treatment. Research Design This study utilized descriptive research design‚ because this study wants
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PEBA 1-2 Part 1: Introduction to E-Commerce and E-Marketplaces ONLINE FILE W1.2 Application Case DELL—USING E-COMMERCE FOR SUCCESS The Problem/Opportunity Founded in 1985 by Michael Dell‚ Dell Computer Corp. (now known as Dell) was the first company to offer personal computers (PCs) via mail order. Dell designed its own PC system (with an Intel 8088 processor running at 8 MHz) and allowed customers to configure their own customized systems using the build-to-order concept (see Chapter
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Project 1 Virtual Presentation-ECOM15616 Company: M&R Security Inc. Business Process: Inventory Management EDWARD ROCHA-MARTINEZ (ROCHAMAE) GULSHANVIR SINGH KHAIRA(KHAIRGUL) SARABJIT SINGH (SING2932) RAJVINDER KAUR KANG (KANGRAJV) JASKARAN SINGH GILL (GILL326) April 13‚ 2015 Carlene Blackwood‚ Monday: 10-12PM Company Introduction M&R Security Inc. was created in October of 2014 by Cristhian Martinez and Amy Raad-Martinez. They provide the following services: Automation Monitoring
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