Normalization of Database Tables Introduction to Normalization of Database Tables Normalization of Database Tables l Introduction to Normalization of Database Tables 4 4 4 ISM 602 Dr. Hamid Nemati 4 4 4 Functional Dependency l Introduction to Normalization of Database Tables l l A Functional Dependency Is A Relationship Between Or Among Attributes Such That The Values Of One Attribute Depend On‚ Or Are Determined By‚ The Values Of The Other Attribute(s)
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Key concepts Let me start by naming a few of the most important concepts in relational database design. A basic understanding of these will be required to understand the rest of the article. * Primary Key (PK) A column with a unique value for each row. Although not all database management systems (DBMS) require you to put a PK into each table‚ from a design perspective a PK is a requirement. No table should be without one. * Foreign Key (FK) These define relationships between tables. When
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In this presentation‚ the author has explained different metrics and there attributed used to measure software. A person can only measure and represent it in number when he knows something about it. On the other hand‚ if has no idea about it then he doesn’t have any idea about it [1]. There are two types of software complexity metrics. One gives the efficiency of the machine while running the software which is called as computational complexity. Another one is giving us the factors which affect the
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[pic] CONTENT 1. To start with 2. Database Marketing a. Consumer Data b. Business Data 3. Difference between direct marketing and database marketing 4. Why database marketing is increasing so rapidly? a. Greater use of market segmentation b. Emphasis on service and customer relationship management c. Changes in media d. Changes in distribution structure and power e. Lifestyle and demographic trends
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False Memory and Your Imagination Diana Bunch PSY 511 False Memory and Your Imagination The power of suggestion or through a vivid imagination are just a couple ways that psychological research has shown ways in which false memories are created. A false memory is an untrue or distorted reminiscence of an event that did not actually happen. In reality‚ memory is very susceptible to error. People can feel completely assured that their memory is accurate‚ but this assurance is no guarantee that
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C AL SC I EN C E False Confessions Causes‚ Consequences‚ and Implications for Reform Saul M. Kassin John Jay College of Criminal Justice ABSTRACT—Despite the commonsense belief that people do not confess to crimes they did not commit‚ 20 to 25% of all DNA exonerations involve innocent prisoners who confessed. After distinguishing between voluntary‚ compliant‚ and internalized false confessions‚ this article suggests that a sequence of three processes is responsible for false confessions and their
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Normalization A logical design method which minimizes data redundancy and reduces design flaws. Consists of applying various “normal” forms to the database design. The normal forms break down large tables into smaller subsets. First Normal Form (1NF) Each attribute must be atomic • No repeating columns within a row. • No multi-valued columns. 1NF simplifies attributes • Queries become easier.
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Database Design Ryan K. Stephens Ronald R. Plew 800 East 96th St.‚ Indianapolis‚ Indiana‚ 46240 USA Database Design ASSOCIATE PUBLISHER Copyright 2001 by Sams Publishing EXECUTIVE EDITOR Bradley L. Jones All rights reserved. No part of this book shall be reproduced‚ stored in a retrieval system‚ or transmitted by any means‚ electronic‚ mechanical‚ photocopying‚ recording‚ or otherwise‚ without written permission from the publisher. No patent liability is assumed with respect
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Cabuliwallah cabuliwallah‚ penned by rabindranath tagore‚ explores the complexities of human relationships through the story of rahmun and the narrators daughter mini. Rahmun‚ the cabuliwalla does not belong to Calcutta and is always treated as an outsider . he is subjected to the mistrust ‚ curiosity and suspicion of the locals. mini was initially frightened by the cabuliwallah‚ rumoured to be a child abductor ‚who actually peddled dry fruits and went door to door in the hopes of earning a few
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Before coming to college‚ I had made many naïve assumptions about Binghamton University. What if my roommate didn’t like me? What if we have nothing in common? I thought long and hard about what my tiny dorm room would look like and had countless nightmares about sharing a communal bathroom. However‚ after arriving here‚ the experiences that I’ve made have altered my thoughts on college. My older brother‚ a junior here at Binghamton University‚ has had his fair share of bizarre roommates. When
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