TAILIEUCHUNG - Database Application Developer’s Guide

Your instruction permit allows you to drive during the behind-the wheel portion of your driver education class with an adult instructor occupying the seat next to you. It also allows you to drive with a parent, legal guardian or responsible adult age 21 or older with a valid license for the type of vehicle you are driving and at least one year of driv- ing experience. After you have successfully completed the driver education class, you may continue practice driving with your instruction permit, under the direct supervision of a responsible adult, as outlined above. . | Database Application Developer s Guide Delphi for Windows Chapter 1 Introduction Copyright Agreement Delphi enables you to create robust database applications quickly and easily. Delphi database applications can work directly with desktop databases like Paradox dBASE the Local InterBase Server and ODBC data sources. The Delphi Client Server edition also works with remote database servers such as Oracle Sybase Microsoft SQL Server Informix InterBase and ODBC data sources. Delphi client applications can be scaled easily between mission critical network-based client server databases and local databases on a single machine. This chapter introduces Delphi s database tools including the Data Access and Data Controls component pages the Fields Editor the Database Desktop and the Database Forms Expert. What you should know first Building a database application is similar to building any other Delphi application. This book assumes you understand the basic application development techniques covered in the Delphi User s Guide including Creating and managing projects Creating forms and managing units Working with components properties and events Writing simple Object Pascal source code You also need to have a working knowledge of the Database Management System DBMS your Delphi database applications access whether it is a desktop database such as dBASE or Paradox or an SQL server. For information specific to building client server applications with Delphi see Chapter 6 Building a client server application. This book assumes you have a basic understanding of relational databases database design and data management. There are many third-party books covering these topics if you need to learn more about them. Introduction 1 Overview of Delphi s database features and capabilities A Delphi database application is built using Delphi database development tools Delphi data-access components and data-aware GUI components. A database application uses Delphi components to communicate with

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