Database connection using embedded driver

Question

I have a small application that relies on data stored in an underlying Java DB database. If I use the following to connect to the database, the application works:
derbyclient.jar in the main class CLASSPATH
public static final String DRIVER_NAME = "org.apache.derby.jdbc.ClientDriver";
public static final String DATABASE_URL = "jdbc:derby://localhost:1527/UnitConverters";
BUT...if I use the embedded driver, it does not work:
derby.jar in the main class CLASSPATH
public static final String DRIVER_NAME = "org.apache.derby.jdbc.EmbeddedDriver";
public static final String DATABASE_URL = "jdbc:derby:UnitConverters";
The error I get when I try using the embedded driver is: java.sql.SQLException: Database 'UnitConverters' not found.
Here's what I'm using to connect to the database (for both scenarios):
public void init() {
try {
Class.forName(DRIVER_NAME);
myConnection = DriverManager.getConnection(DATABASE_URL,"user","pass");
} catch (SQLException ex) {
ex.printStackTrace();
} catch (ClassNotFoundException ex) {
ex.printStackTrace();
Thanks in advance for your help,
Greg.

Answer 1

Yes, there was. I've been trying examples and
googling for a couple of days now, and I can't get it
to work. Thanks for your help, though--at least I got
a different error message this time! ;)Try this, it is a sample I used to get connected in embedded mode.
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.SQLException;
import java.util.Properties;
public class DatabaseConnection {
    private String driver = "org.apache.derby.jdbc.EmbeddedDriver";
    private String protocol = "jdbc:derby:";
    public static void main(String[] args) {
          new DatabaseConnection();
    private DatabaseConnection() {
         try{
               Class.forName(driver).newInstance();
             Connection conn = null;
             Properties props = new Properties();
             props.put("user", "user1");
             props.put("password", "user1");
             conn = DriverManager.getConnection(protocol +
                     "derbyDB;create=true", props);
             System.out.println("Connected to and created database derbyDB");
             conn.setAutoCommit(false);
         } catch (SQLException e) {
         } catch (InstantiationException e) {
               e.printStackTrace();
          } catch (IllegalAccessException e) {
               e.printStackTrace();
          } catch (ClassNotFoundException e) {
               e.printStackTrace();
}