Skip to Content
Managing & Using MySQL, 2nd Edition
book

Managing & Using MySQL, 2nd Edition

by Tim King, George Reese, Randy Yarger, Hugh E. Williams
April 2002
Intermediate to advanced
442 pages
16h 37m
English
O'Reilly Media, Inc.
Content preview from Managing & Using MySQL, 2nd Edition

Object/Relational Modeling

Accessing a relational database from an object-oriented environment exposes a special paradox: the relational world manipulates data directly while the object world encapsulates data behind a set of behaviors. In an object-oriented application, the database serves as a tool for saving objects across application instances. Instead of seeing the query data as a rowset, an object-oriented application sees query data as a collection of objects.

The most basic question facing the object-oriented developer using a relational database is how to map relational data into objects. Your immediate thought might be to simply map object attributes to fields in a table. Unfortunately, this approach does not create the perfect mapping for two reasons:

  • Objects do not store only simple data in their attributes. They may store collections or relationships with other objects.

  • Most relational databases—including MySQL—have no way of modeling inheritance.

An application should manipulate data only through the objects. Most traditional programming methods, including most development in C, PowerBuilder, and VisualBasic, require the developer to pull the data from the database and then process that data. Thus, the first task of an object-oriented application is to grab the data from the database and instantiate objects, through which all further application processing takes place.

Think about an address book application. You would probably have something like the address and ...

Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
and much more.

Read now

Unlock full access

More than 5,000 organizations count on O’Reilly

AirBnbBlueOriginElectronic ArtsHomeDepotNasdaqRakutenTata Consultancy Services

QuotationMarkO’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.
Julian F.
Head of Cybersecurity
QuotationMarkI wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.
Addison B.
Field Engineer
QuotationMarkI’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.
Amir M.
Data Platform Tech Lead
QuotationMarkI'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.
Mark W.
Embedded Software Engineer

You might also like

MySQL 8 Cookbook

MySQL 8 Cookbook

Karthik Appigatla
Advanced MySQL 8

Advanced MySQL 8

Eric Vanier, Birju Shah, Tejaswi Malepati
MySQL Stored Procedure Programming

MySQL Stored Procedure Programming

Guy Harrison, Steven Feuerstein
MySQL Reference Manual

MySQL Reference Manual

Michael Widenius, David Axmark, Kaj Arno

Publisher Resources

ISBN: 0596002114Errata Page