ITC 6000 Class 2 ‐ Assignment 1. List at least four advantages of indexing. Mention some indexing tips that would be of particular help to a database designer. Also‚ discuss indexing practices that can adversely affect the performance of a database. In your discussion‚ include information on how a designer should decide on how many indexes to provide per table. Indexes are used to boost performance in a database. Finding an individual record or set of records most efficiently done by Index. Index
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Changes in 2012 ERP® Examination Study Guide Changes in ERP® Study Guide for 2012 NEW READINGS New Readings for Hydrocarbon Resources 1. Charlotte Wright and Rebecca Gallun. Fundamentals of Oil & Gas Accounting‚ 5th Edition (Tulsa‚ OK: PennWell‚ 2008). • Chapter 15 ....................Accounting for International Petroleum Operations 2. Bunkerworld. D2 and No.2 Diesel Fuel: An Introduction. (Online reading) 3. Vivek Chandra. Fundamentals of Natural Gas: An International
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Computer Multimedia Sam Quesinberry Computers have come a long way very fast since there start in the 1940’s. In the beginning they were mainly used for keeping financial records by banks and insurance companies‚ and for mathematical computations by engineers and the U.S. Military. However‚ exciting new applications have developed rapidly in the last few years. Two of these areas is Computer Graphics and sound. Computer graphics is the ability of the computer to display‚ store and transmit
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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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Y.‚ Cost and schedule control integration: issues and needs. J. Constr. Engng. Man.‚ September 1991. 4. Oglesby‚ C. H.‚ Parker‚ H. W. & Howell‚ G. A.‚ Productivity Improvement in Construction. McGraw-Hill‚ New York‚ 1989. 5. Abudayyeh‚ 0. Y.‚ The modeling‚ design and implementation of a construction multi-media information management system. Technical Report CME-95-01‚ Construction Division‚ Department of Civil Engineering and Construction‚ North Dakota State University‚ Fargo‚ ND‚ August 1995. 6
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further evidence on the effectiveness and usefulness of the proposed approach when compared with machine learning algorithms‚ such as classification and nearest neighborhood. The superiority of the proposed approach is also demonstrated against user modeling evaluation methodologies‚ as well as against traditional marketing targeting practices. Introduction The vast majority of existing research on personalization is concerned with computer-based systems of some kind or other. In this paper‚ we discuss
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Institute of graduate studies &research Information technology department Database systems Report on: (Comparison between Relational database & object oriented database) By: Mohammed Hussein Mahmoud Mustafa khedr To: Dr. Saad Darwish Introduction A database is a means of storing information in such a way that information can be retrieved from it. Thus a database is typically a repository for heterogeneous but interrelated pieces of information. Often a database contains more than one
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IT strategic planning‚ and the main techniques commonly used in the preparation of IS/IT strategic plans and Projects; By the end of the course‚ students should be able to: 1. Explain the principles of database management systems 2. Explain data modeling with emphasis on Relational Mode 3. Demonstrate the ability to design databases using E-R Models 4. Explain query processing and familiarize using SQL; 5. Strategic information system planning: what is involved in establishing a planning process
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the users are the final judges as to what data the database should contain and how the records in that database should be related to one another. The easiest time to change the database structure is during the data modeling stage. So the user should be actively involved in the modeling process. The user review of a data model is crucial. When a database is developed‚ the user must carefully review the data model. Page Ref: 392- 393 Difficulty: Easy AACSB: Use of IT; Analytic skills Study
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12.8 Describe how strong and weak entity types differ and provide an example of each. A strong entity type is an entity type that is not existence-dependent on some other entity type A weak entity type is an entity type that is existence-dependent on some other entity type. States Strong entity weak entity Client is strong entity because it already has primary key and doesn’t
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