Force.com IDE Developer Guide

Force.com IDE UI Overview
Getting Started with the Force.com IDE
Developing with the Force.com IDE
Testing Code with the Force.com IDE
Deploying Code with the Force.com IDE
Getting Started with the Apex Debugger
Summary of Getting Started with the Apex Debugger
Set Up the Apex Debugger
Explore a Simple Debugging Puzzle
Create Sample Accounts in Your Org
Create an Apex Class
Create a Visualforce Page
Identify a Problem
Debug the Problem
Fix the Problem
Delete Your Sample Accounts
Manage Debugging Sessions
Apex Debugger Limits and Considerations
Apex Debugger Troubleshooting
Useful References
PDF

Delete Your Sample Accounts

Unless you want to keep your sample accounts so that you can play with them in the future, run this code to delete them.
  1. Enter this code in the Force.com IDE’s Execute Anonymous pane, in the Source to execute field. 
    1List<Account> buggyAccounts = [SELECT Id
2                          FROM Account 
3                          WHERE BillingCity = 'Suffragette City'];
4delete buggyAccounts;
  2. Click Execute Anonymous.
  3. In the Accounts tab of the Salesforce user interface, verify that your accounts have been deleted.