Databases
StackOverflow2013
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    <p>As suggested in the article <a href="http://download.oracle.com/javase/tutorial/uiswing/concurrency/index.html" rel="nofollow noreferrer"><em>Concurrency in Swing</em></a>, your button handler's query may be blocking the event dispatch thread. Using <a href="http://download.oracle.com/javase/6/docs/api/javax/swing/SwingWorker.html" rel="nofollow noreferrer"><code>javax.swing.SwingWorker</code></a> is one approach to loading images in the background, while displaying progress and keeping the GUI thread alive.</p> <p>Addendum: Here's a <a href="http://sscce.org/" rel="nofollow noreferrer">sscce</a> that loads the SO logo:</p> <pre><code>import java.awt.*; import java.io.IOException; import java.net.URL; import javax.imageio.ImageIO; import javax.swing.*; /** @see http://stackoverflow.com/questions/4530659 */ public class WorkerTest extends javax.swing.JFrame { private JPanel panel = new JPanel(); private JLabel label = new JLabel("Loading..."); public WorkerTest() { this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); label.setHorizontalTextPosition(JLabel.CENTER); label.setVerticalTextPosition(JLabel.BOTTOM); this.add(label); this.pack(); } private void start() { new ImageWorker().execute(); } public static void main(String args[]) { EventQueue.invokeLater(new Runnable() { @Override public void run() { WorkerTest wt = new WorkerTest(); wt.setVisible(true); wt.start(); } }); } class ImageWorker extends SwingWorker&lt;Icon, Void&gt; { private static final String TEST = "http://cdn.sstatic.net/stackexchange/img/logos/so/so-logo.png"; private ImageIcon icon; @Override protected Icon doInBackground() throws IOException { Image image = ImageIO.read(new URL(TEST)); icon = new ImageIcon(image); return icon; } @Override protected void done() { label.setIcon(icon); label.setText("Done"); panel.setPreferredSize(new Dimension( icon.getIconWidth(), icon.getIconHeight())); WorkerTest.this.pack(); } } } </code></pre>
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    1. COgood link. Definitely worth a read.
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Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

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