Chapter 3: Querying A Database - MACROMEDIA COLDFUSION 4.5-DEVELOPING WEB Develop Manual

C 3
H A P T E R
Querying a Database
Chapter 3
This chapter describes how to retrieve data from a database, work with query data,
and enable debugging in ColdFusion applications. You will learn how to use the
ColdFusion Administrator to set up a data source and enable debugging, use the
CFQUERY tag to query a data source, and use the CFOUTPUT tag to output the query
results to a Web page.
Contents
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Publishing Dynamic Data................................................................................ 16
Database Basics................................................................................................ 16
Understanding Data Sources .......................................................................... 18
Adding Data Sources........................................................................................ 19
Retrieving Data................................................................................................. 20
Writing SQL....................................................................................................... 21
Building Queries............................................................................................... 24
Outputting Query Data.................................................................................... 25
Getting Information About Query Results ..................................................... 27