Designing the database

There are several key aspects of GUI design that you need to consider when designing and implementing the GUI for your project. At a high level, they can be broken down into two main areas of focus: 1. Designing the GUI to be usable and friendly from the end user’s perspective. 2. Designing and implementing the GUI to be reliable, and maintainable from the programmer’s perspective. This chapter will focus almost entirely on the first point—ease of use for the end user. We start with a very brief overview of the technical issues you probably want to address in implementing your...

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Chapter 8 - Relational database design. This chapter introduces the theory of relational database design. The theory of functional dependencies and normalization is covered, with emphasis on the motivation and intuitive understanding of each normal form. This chapter begins with an overview of relational design and relies on an intuitive understanding of logical implication of functional dependencies.

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For the purposes of this book, you also must install the AdventureWorks database for SQL Server 2005. This database, which contains data for a fictitious cycling company, is a totally new one specially designed and developed for SQL Server 2005 only. To start, you first install the AdventureWorks creation script, and then you create the database.

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Data, data, data! Data is where it’s at as far as computers go, whether processing millions of calculations or keeping a record of your Aunt Maude’s birthday. When it comes to storing data, the database is the king. In almost eight years of professional programming, every single project I’ve worked on has involved databases somewhere along the line—that’s how essential they are to most business applications and projects. Admittedly, some areas, such as computer games, don’t make the same use of databases.

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CRITICAL SKILL 1.1: Define a Database Database you say—now there's a word you hear all the time! In a nutshell, a database is an electronic collection of information designed to meet a handful of needs:
 Databases provide one-stop shopping for all your data storage requirements. The database contains any amount of data, from the small to the huge.
 Databases must provide mechanisms to retrieve data quickly as applications interact with their contents.

6p saviour 08-12-2009 116 36   Download

Before you build your tables, you design your database. In this lesson, you examine the data modeling process and relational database concepts, and define normalization. You also translate an entity relationship model into a relational database design. At the end of this lesson, you should be able to
Describe the stages of system development.
List and define basic types of data relationships.
Define a relational database and its components.
Read an entity relationship model.
Translate an entity relationship model into a relational database design....

40p minhthanh 12-08-2009 162 30   Download

Database you say—now there's a word you hear all the time! In a nutshell, a database is an electronic collection of information designed to meet a handful of needs:  Databases provide one-stop shopping for all your data storage requirements. The database contains any amount of data, from the small to the huge.  Databases must provide mechanisms to retrieve data quickly as applications interact with their contents.  Databases allow the sharing of corporate data such that personnel data is shared amongst one's payroll, benefits, and pension systems....

6p saviour 24-02-2010 129 25   Download

Facebook (http://www.facebook.com) has grown phenomenally over the past several years from an Ivy League social web application to the second largest social web site on the Internet. The creators of Facebook have done an impressive job focusing their social software on the college demographic. In a natural progression of the social network, Facebook recently extended its network by developing a platform for developers to create new applications to allow Facebook users to interact in new and exciting ways....

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This book is intended for IT professionals and students who want to learn how to design, analyze, and understand databases. The material will benefit those who want a better high-level understanding of databases such as proposal managers, architects, project managers, and even customers. The material will also benefit those who will actually design, build, and work with databases such as database designers, database administrators, and programmers.

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Objectives: After completing this lesson, you should be able to do the following: • Create a database with the Database Configuration Assistant (DBCA) • Create a database design template with the DBCA • Generate database creation scripts with the DBCA

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For the system to be acceptable to the end-users, the database design activity is crucial. • A poorly designed database will generate error that may lead to bad decisions being made, which may have serious repercussions for the organization. On the other hand, a well-designed database produces, in an efficient way, a system that provides the correct information for the decision-making process to succeed.

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Question Kidszone School wants to store the information of students and their parents in their database. This will help them to better administer and control the new student registration process as well as manage already existing records of enrolled students. The School Management Board has chosen your company to provide a solution for the same. Consider yourself to be a part of the team that implements the solution for designing the application.

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Access 2007: The Missing Manual was written from the ground up for this redesigned application. You will learn how to design complete databases, maintain them, search for valuable nuggets of information, and build attractive forms for quick-and-easy data entry. You'll even delve into the black art of Access programming (including macros and Visual Basic), and pick up valuable tricks and techniques to automate common tasks - even if you've never touched a line of code before.

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Kidszone School wants to store the information of students and their parents in their database. This will help them to better administer and control the new student registration process as well as manage already existing records of enrolled students. The School Management Board has chosen your company to provide a solution for the same. Consider yourself to be a part of the team that implements the solution for designing the application.

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This is the exercise book to accompany the present author's An Introduction to Relational Database Theory. With two exceptions, these exercises are copies of those given at the ends of Chapters 1-7 of that book. The exercises using Rel given with some of those chapters are also included. The first exception is Exercise 7 for Chapter 7, which I have replaced by a precise, detailed specification for a comprehensive database design. The second is a set of additional exercises using Rel, exploring virtual relvars and user-defined type definitions....

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Michael V Mannino has been involved in the database field since 1980. He has taught data­ base management since 1983 at several major universities (University of Florida, Univer­ sity of Texas at Austin, University of Washington, and University of Colorado at Denver). His audiences have included undergraduate MIS students, graduate MIS students, MBA students, and doctoral students as well as corporate employees in retraining programs.

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Speed. Aside from caffeine, nothing quickens the pulse of a programmer as much as the blazingly fast execution of a piece of code. How can we fulfill the need for computational speed? Moore’s law takes us some of the way, but multicore is the real future. To take full advantage of multicore, we need to program with concurrency in mind. In a concurrent program, two or more actions take place simultaneously. A concurrent program may download multiple files while performing computations and updating the database. We often write concurrent programs using threads in Java.

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Chapter 7 discusses how to design a relational database schema based on a conceptual schema design. This chapter presented a high-level view of the database design process, and in this chapter we focus on the logical database design or data model mapping step of database design. We present the procedures to create a relational schema from an Entity-Relationship (ER) or an Enhanced ER (EER) schema.

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An investment of effort over the last two years has begun to produce a wealth of data concerning computational psycholinguistic models of syntax acquisition. The data is generated by running simulations on a recently completed database of word order patterns from over 3,000 abstract languages. This article presents the design of the database which contains sentence patterns, grammars and derivations that can be used to test acquisition models from widely divergent paradigms.

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Chapter 7 present relational database design by ER and EER-to-Relational mapping. The main contents in this chapter: ER-to-Relational mapping algorithm, mapping EER model constructs to relations. Inviting you to refer.

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