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Tip of the Day
Language: Java
Expertise: Intermediate
Jul 2, 2007

In-memory JDBC Driver Details

When you're working with JDBC, you can load more than one JDBC driver in memory. To find out how many drivers are in memory, along with other useful driver information, use the following code:

import java.sql.*;
import java.util.*;

public class drvinf{

public static void main(String[] args)
  {
  Connection conn=null;
  ResourceBundle bundle = ResourceBundle.getBundle("START");
  String drv=null;
  String url=null;

  //load a JDBC driver
  try{
     drv = bundle.getString("Driver");
     Class.forName(drv);
     }catch (ClassNotFoundException e)
       {System.out.println(e.getMessage());}

  //JDBC URL=jdbc:odbc:bank
  try{
     url = bundle.getString("jdbcURL");
     conn = DriverManager.getConnection(url);

     List drvs = Collections.list(DriverManager.getDrivers());
     for (int i=0; i<drvs.size(); i++)
       {
       System.out.println("---------------------------------");
       Driver driver = (Driver)drvs.get(i); 
       String name = driver.getClass().getName(); 
       System.out.println(name);
       int maxV = driver.getMajorVersion();
       System.out.println(maxV); 
       int minV = driver.getMinorVersion();
       System.out.println(minV); 
       boolean comp = driver.jdbcCompliant();
       System.out.println(comp); 
       }    
    }catch (SQLException e)
    {System.out.println(e.getMessage());}
       try{
          if(conn!=null)conn.close();
          }catch(SQLException e)    
               {System.out.println(e.getMessage());} 
    }
}
The START.properties file should look like this:

Driver=sun.jdbc.odbc.JdbcOdbcDriver
jdbcURL=jdbc:odbc:bank
login=admin
password=hashflush
Leonard Anghel
 
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