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As already mentioned, an unsigned applet can only make network connection to the host from which the applet originated. However, if the database is hosted on a different server than the originating applet then you will have to make the applet signed. If the application is not for production use, you can self sign the applet (not suitable in production use where the signing has to be done by a trusted Certificate Authority. Certificate authorities typically charge a fee for the service of validating their clients' credentials.) However, for testing and demo purposes, you can create a self-signed certificate. With self-signed certificates, the browser displays a warning to the user mentioning that the information given in a self-signed certificate has not been validated by a trusted third party (Certificate Authority). For self signing the applet take a look at the following links: <a href="http://java.sun.com/developer/onlineTraining/Programming/JDCBook/signed.html" rel="nofollow noreferrer">http://java.sun.com/developer/onlineTraining/Programming/JDCBook/signed.html</a> <a href="http://www-personal.umich.edu/~lsiden/tutorials/signed-applet/signed-applet.html" rel="nofollow noreferrer">http://www-personal.umich.edu/~lsiden/tutorials/signed-applet/signed-applet.html</a> The other things to keep in mind are the JDBC driver types to use. Type-1 and Type-2 drivers are not suitable to be used within applet due their dependence on native binary code. Type-3 and Type-4 are ones you should be using to connect to database from within an applet. The best solution is to NOT make database connection from an applet (if possible) but instead use a server side application to connect to the database on behalf of the applet.
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1. POProblem Using JApplet that Accesses a Database on a Web Application Using Netbeans 6.5.1
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1. USSuresh Kumar
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1. POProblem Using JApplet that Accesses a Database on a Web Application Using Netbeans 6.5.1
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Querying!

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.