Kroenke Dbp12 Pp Ch01

7/26/2019 Kroenke Dbp12 Pp Ch01

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David M. Kroenke and David J. Auer

Database Processing12thEditionFundamentals, Design, and Implementation

Chapter One:Introduction

KROENKE AND AUER - DATABASE PROCESSING, 12th Edition 2012 Pearson Prentice Hall

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Chapter Objectives

To understand the nature and characteristics ofdatabases

To survey some important and interesting databaseapplications

To gain a general understanding of tables andrelationships

To describe the components of a Microsoft Accessdatabase system and explain the functions they perform

To describe the components of an enterprise-classdatabase system and explain the functions they perform

To define the term database management system(DBMS)and describe the functions of a DBMS


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Chapter Objectives

To define the term databaseand describe what iscontained within the database

To define the term metadataand provide examples ofmetadata

To define and understand database design from existingdata

To define and understand database design as newsystems development

To define and understand database design in databaseredesign

To understand the history and development of databaseprocessing


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The Characteristics of Databases

The purpose of a databaseis to help people

track things of interest to them.

Data is stored in tables, which have rows and

columns like a spreadsheet. A database mayhave multiple tables, where each table stores

data about a different thing.

Each row in a table stores data about an

occurrence or instanceof the thing of interest.

A database stores dataand relationships.


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Data in Tables


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The Key Characteristic of

Databases: Related Tables


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Naming Conventions in this

Textbook

Table namesare written with all capital

letters:

STUDENT, CLASS, GRADE

Column namesare written with an initial

capital letter, and compound names are

written with a capital letter on each word:

Term, Section, ClassNumber, StudentName


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Databases Create Information

Data= recorded facts and figures

Information= knowledge derived fromdata

Databases record data, but they do so insuch a way that we can produceinformation from the data.

The data on STUDENTs, CLASSes, andGRADEs could produce information abouteach students GPA.


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Database Examples


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Components of a Database System


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Components of a Database System

with SQL


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Applications, the DBMS, and SQL

Applicationsare the computer programsthat users work with.

The Database Management System

(DBMS)creates, processes, andadministers databases.

Structured Query Language (SQL)is an

internationally recognized standarddatabase language that is used by allcommercial DBMSs.


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Database Applications


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Database ApplicationsForms


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Database ApplicationsQueries

SELECT LastName, FirstName, EmailAddress

FROM STUDENT

WHERE StudentNumber > 2;


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DatabaseReports


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The DBMS


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The Database

A databaseis a self-describing collectionof integrated tables.

The tables are called integratedbecause

they store data about the relationshipsbetween the rows of data.

A database is called self-describing

because it stores a description of itself. The self-describing data is called

metadata, which is data about data.


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Typical Metadata Tables


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Database Contents


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Personal Database Systems:

Microsoft Access


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Microsoft Access

Microsoft Accessis a low-end product

intended for individual users and small

workgroups.

Microsoft Access tries to hide much of theunderlying database technology from the user.

A good strategy for beginners, but not for

database professionals.

NOTE: Microsoft Access 2007 is discussed in

detail in Appendix A.


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What Is Microsoft Access?

Microsoft Access is a DBMS plus anapplication generator: The DBMS creates, processes, and administers

Microsoft Access databases.

The application generator includes query, form, andreport components.

The Microsoft Access DBMS engine is called theAccess Data Engine (ADE).

Microsoft Access 2000 and later can be used asan application generator for the Microsoft SQLServer DBMS.


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Enterprise-Class Database

Systems


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Prominent DBMS Products

Microsoft Access 2010

Microsoft SQL Server 2008 R2

Microsoft SQL Server 2008 R2 Express

Oracle Corporation Oracle Database 11g

MySQL 5.5

IBM DB2

KROENKE AND AUER - DATABASE PROCESSING, 12th Edition 2012 Pearson Prentice Hall 1-25
http://office.microsoft.com/en-us/access/http://www.microsoft.com/sql/default.mspxhttp://www.microsoft.com/sqlserver/2008/en/us/express.aspxhttp://www.oracle.com/database/index.htmlhttp://www.mysql.com/http://www-306.ibm.com/software/data/db2/http://www-306.ibm.com/software/data/db2/http://www.mysql.com/http://www.oracle.com/database/index.htmlhttp://www.microsoft.com/sqlserver/2008/en/us/express.aspxhttp://www.microsoft.com/sql/default.mspxhttp://office.microsoft.com/en-us/access/


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DBMS Power vs. Ease of Use



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Three Types of Database Design



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Database Design from Existing Data



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Data Import: One or Two Tables?

This is an important

decision, and based on

a set of rules known as

normalization(which is

covered in Chapter 3).



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Database Design from New

Systems Development

Entity-Relationship data modeling is covered in Chapter 5, and data model

transformations to database designsare covered in Chapter 6.



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Database Design from Database

Redesign

Database redesignis

covered in Chapter 8,

after coverage of SQL in

Chapter Seven.



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What You Need To Learn



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Knowledge Priorities



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A Brief History of

Database

ProcessingI



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A Brief History of

Database

ProcessingII



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The Relational Database Model

The dominant database model is therelational database modelall currentmajor DBMS products are based on it.

It was created by IBM engineer E. F.Coddin 1970.

It was based on mathematics called

relational algebra. This text examines and explains the

relational database model.



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David Kroenke and David Auer

Database Processing12thEdition

Fundamentals, Design, and Implementation

End of Presentation:

Chapter One



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All rights reserved. No part of this publication may be reproduced, stored in a

retrieval system, or transmitted, in any form or by any means, electronic,mechanical, photocopying, recording, or otherwise, without the prior written

permission of the publisher. Printed in the United States of America.

Copyright 2012 Pearson Education, Inc.Publishing as Prentice Hall

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