Query Execution
In this section, we write a program that executes queries against the COREJAVA database. For this program to work, you must have populated the COREJAVA database with tables, as described in the preceding section. Figure 4-6 shows the QueryDB application in action.
Figure 4-6. The QueryDB application
You can select the author and the publisher or leave either of them as “Any.” Click the Query button; all books matching your selection will be displayed in the text area.
You can also change the data in the database. Select a publisher and type an amount into the text box next to the Change prices button. When you click the button, ...
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