How to Connect to More than One Database

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Contents

[edit] Overview - How to Connect to More than One Database

This Java example program shows how to connect to more than one database.

[edit] Java Source Code

  • Package: example.sql.connection
  • File: TestConnectToMoreThanOneDatabase.java 
package example.sql.connection;
 
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.SQLException;
 
public class TestConnectToMoreThanOneDatabase {
 
    public static Connection getOracleConnection() throws Exception {
	String driver = "oracle.jdbc.driver.OracleDriver";
	String url = "jdbc:oracle:thin:@localhost:1521:scorpian";
	String username = "userName";
	String password = "pass";
	Class.forName(driver); // load Oracle driver
	Connection conn = DriverManager.getConnection(url, username, password);
	return conn;
    }
 
    public static Connection getMySqlConnection() throws Exception {
	String driver = "org.gjt.mm.mysql.Driver";
	String url = "jdbc:mysql://localhost/tiger";
	String username = "root";
	String password = "root";
	Class.forName(driver); // load MySQL driver
	Connection conn = DriverManager.getConnection(url, username, password);
	return conn;
    }
 
    public static void main(String[] args) {
 
	Connection oracleConn = null;
	Connection mysqlConn = null;
	try {
	    oracleConn = getOracleConnection();
	    mysqlConn = getMySqlConnection();
	    System.out.println("oracleConn=" + oracleConn);
	    System.out.println("mysqlConn=" + mysqlConn);
	} catch (Exception e) {
	    // handle the exception
	    e.printStackTrace();
	    System.exit(1);
	} finally {
	    // release database resources
	    try {
		oracleConn.close();
		mysqlConn.close();
	    } catch (SQLException e) {
		e.printStackTrace();
	    }
	}
    }
}

[edit] What Result You Can Get

Coming soon...

[edit] Required External Libraries and/or Files for this Java Example

In order to run this Java example, one of the following libraries may be required: In order to run this example program, one of the following libraries may be required: 

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[edit] Question & Answer

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