eXtropia: the open web technology company
Technology | Support | Tutorials | Development | About Us | Users | Contact Us
 ::   Tutorials
 ::   Presentations
Perl & CGI tutorials
 ::   Intro to Perl/CGI and HTML Forms
 ::   Intro to Windows Perl
 ::   Intro to Perl 5
 ::   Intro to Perl
 ::   Intro to Perl Taint mode
 ::   Sherlock Holmes and the Case of the Broken CGI Script
 ::   Writing COM Components in Perl

Java tutorials
 ::   Intro to Java
 ::   Cross Browser Java

Misc technical tutorials
 ::   Intro to The Web Application Development Environment
 ::   Introduction to XML
 ::   Intro to Web Design
 ::   Intro to Web Security
 ::   Databases for Web Developers
 ::   UNIX for Web Developers
 ::   Intro to Adobe Photoshop
 ::   Web Programming 101
 ::   Introduction to Microsoft DNA

Misc non-technical tutorials
 ::   Misc Technopreneurship Docs
 ::   What is a Webmaster?
 ::   What is the open source business model?
 ::   Technical writing
 ::   Small and mid-sized businesses on the Web

Offsite tutorials
 ::   ISAPI Perl Primer
 ::   Serving up web server basics
 ::   Introduction to Java (Parts 1 and 2) in Slovak


Introduction to Databases for Web Developers
Using JDBC to Modify a Database  
Modifying a database is just as simple as querying a database. However, instead of using executeQuery(), you use executeUpdate() and you don't have to worry about a result set. Consider the following example:

Connection jdbcConnection =
Statement sqlStatement = jdbcConnection.createStatement();

        // We have seen all of the above before.
        // No surprises so far.  in the next line, we
        // will simply create a string of SQL.

             " (CustomerID, Firstname, LastName, Email)" +
	     " VALUES (004, 'Selena', 'Sol' " +

        // Now submit the SQL....


As you can see, there is not much to it. Add, modify and delete are all handled by the executeUpdate() method. You compose the SQL and send it through JDBC in one simple call.

Previous | Next | Table of Contents