It is sometimes useful if you can see data in database tables from your IDE and can modify it. This is possible in Eclipse JEE using Data Source Explorer. This view is displayed in a tab at the lower pane, just below editors, in the Java EE perspective. If you do not see the view, or have closed the view, you can reopen it by selecting the Window | Show View | Other menu. Type data source in the filter textbox and you should see the view name under the Data Management group. Open the view:
Right-click on the Database Connections node and select New. From the list, select ...