Whenever there is a new update on software that we are using for business or personal reasons, we tend to learn as much as we can about it. The main concerns involve potential changes in and how they may affect the functionality of that program or software. With the new release of Apache Derby containing various fixes for bugs, security and documentation storage issues we can’t avoid the question whether or not they’ve introduced changes to its general usability as well. You’ll be happy to learn that the new release, Derby 10.13.1.1, works just the same as previous releases of this Apache DB subproject. However, if you haven’t completely figured out how to use Apache Derby, specifically how to connect to a Derby database you’re on the right track of finding out.
Automatic Generation of Information
To successfully connect to a Derby database you will need to follow these steps in the appropriate order. So first thing’s first, start your Java Virtual Machine or JVM in short. Now you need to load the driver and make sure that it’s the right one. To create a connection you need to provide a valid database URL connection. You can do this with the ij tool that comes with Apache Derby. When using this tool, the information is automatically supplied, and appropriate drivers are loaded by using the syntax in the URL alone. Now that we’ve created databases with this method we can expect to find them in the derby.system.home directory.
A Different Approach
The ij tool provides alternate ways of supplying the information needed for the connection database of URL (for example ij.protocol, ij.database or ij.connection.connectionName, and similar properties). This is useful when you’re using a script and don’t have the information required to enter the path of a database or driver name until runtime. You can also use these properties to shorten the amount of information required to input with the connection URL.
Alternate Drivers-How to Specify and Utilize them
If you are solely using drivers provided and supplied by Derby, you can find and specify them in the JDBC drivers overview. Before the application connects to a database, a proper JDBC driver must be loaded in the Java session. So when connecting to databases that aren’t affiliated with Derby, while using ij with any other JDBC driver, you’ll need to specify a driver. In this scenario you can approach the situation in three ways:
-Using an ij property.
-Using a system property via JDBC drivers.
-Using the driver command via ij.