What Is A Data Dictionary? Per the IBM Dictionary of Computing‚ a data dictionary is a "centralized repository of information about data such as meaning‚ relationships to other data‚ origin‚ usage‚ and format." Essentially‚ it is documentation or data about data in a file or database‚ also called metadata. Typical Items In A Data Dictionary For each field or column in a database table‚ describe the following elements: Item Contents File/Table Name The name of the file or table where
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Types of Data Integrity This section describes the rules that can be applied to table columns to enforce different types of data integrity. Null Rule A null rule is a rule defined on a single column that allows or disallows inserts or updates of rows containing a null (the absence of a value) in that column. Unique Column Values A unique value rule defined on a column (or set of columns) allows the insert or update of a row only if it contains a unique value in that column (or set of columns)
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Data Structures and Algorithms DSA Annotated Reference with Examples Granville Barne Luca Del Tongo Data Structures and Algorithms: Annotated Reference with Examples First Edition Copyright c Granville Barnett‚ and Luca Del Tongo 2008. This book is made exclusively available from DotNetSlackers (http://dotnetslackers.com/) the place for .NET articles‚ and news from some of the leading minds in the software industry. Contents 1 Introduction 1.1 What this book is‚ and what
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Part A 1. What is a data structure? Data structure is a mechanism for storing data and organizing it in some way. The data structures you use in Alice are list and arrays. 2. Which automatically grows in size as you add items to it‚ lists or arrays? The list automatically expands as items are added to it. 3. When you drag a list tile and drop it on top of a placeholder in an instruction‚ a menu will appear. What will be on the menu? A menu appears showing a list of the methods that
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ITE 221 – Project#1 – Data Representation http://msdn.microsoft.com/en-us/library/d11h6832%28v=VS.71%29.aspx Class library of the .NET Framework for Microsoft. 1. What is a data structure? A data structure is a related group of primitive data elements organized for some type of common processing and is defined and manipulated in software. 2. What is a library? A library contains resources for developing software. These resources could be pre-written code‚ subroutines‚ classes‚ values
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Census Data 1. The 2010 Census reported 308.7 million people in the United States‚ a 9.7 percent increase from the Census 2000 population of 281.4 million. 2. About 16-17% 3. 42‚148 4. 15.9 % The one thing I find interesting is that the poverty level has risen in percentage. We should help each other out more. Table 59. Households‚ Families‚ Subfamilies‚ and Married Couples: 1980 to 2010 [In thousands‚ except as indicated (80‚776 represents 80‚776‚000). As of March. Excludes
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Big Data Myisha Coleman July 22‚ 2012 Big Data Dr. Dani Babb Big Data The Volvo Car Corporation was founded in 1927. Since that time the company prides itself upon leading its competitors in safety and engineering
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Research methods: Data analysis G Qualitative analysis of data Recording experiences and meanings Distinctions between quantitative and qualitative studies Reason and Rowan’s views Reicher and Potter’s St Paul’s riot study McAdams’ definition of psychobiography Weiskrantz’s study of DB Jourard’s cross-cultural studies Cumberbatch’s TV advertising study A bulimia sufferer’s diary G Interpretations of interviews‚ case studies‚ and observations Some of the problems involved in drawing
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Social Security The purpose of this paper is to analyze social security so as to show the reader what makes it beneficial to us today. . Throughout my life the words social and security have meant little more to me than the representation of a small blue card in my wallet‚ a consistent and increasingly significant deduction of funds from my weekly pay-check‚ and a vague academically-instilled recollection of the potential for long-term future benefit. In fact‚ it was not until I researched
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pose challenges for supply chain managers and make increasing requirements on the strategic management expertise of today’s companies. These trends include ongoing globalisation and the increasing intensity of competition‚ the growing demands of security‚ environmental protection and resource scarcity and‚ last but not least‚ the need for reliable‚ flexible and cost-efficient business systems capable of supporting customer differentiation. More than ever‚ modern supply chain managers are confronted
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