/*
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation;
 * version 2.1 of the License.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * Lesser General Public License for more details.
 *
 */
import java.io.InputStream;
import java.sql.Blob;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.ResultSetMetaData;

/**
 * Describe class PrJDBC here.
 *
 *
 * Created: Tue Oct  4 12:00:09 2005
 *
 * @author <a href="mailto:luis@antares.sip.ucm.es">Luis Fernando Llana Díaz</a>
 * @version $Id: PrJDBC.java,v 1.3 2006/02/14 13:27:57 luis Exp $
 */
public class PrJDBC {

    public static void main(String [] args) throws Exception{
	Class.forName("com.mysql.jdbc.Driver").newInstance();
	Connection con = DriverManager.getConnection("jdbc:mysql://localhost/vazmacon?user=luis&password=diez799");
	
	/* This first query runs correctly */
        String sql="select vales.fecha,obras.nombre from vales left join obras on vales.obra=obras.id ";
        PreparedStatement pstmt = con.prepareStatement(sql);
        ResultSet rs=pstmt.executeQuery();
        ResultSetMetaData rsmd = rs.getMetaData();
        System.out.println(rsmd.getColumnName(2)+":"+rsmd.getTableName(2)+":");
        rs.next();
        System.out.println(rs.getString("obras.nombre"));
	
	
	/* This other query does not */
	sql="select vales.fecha,obras.nombre from vales left join obras on vales.obra=obras.id order by obras.nombre";
        pstmt = con.prepareStatement(sql);
        rs=pstmt.executeQuery();
        rsmd = rs.getMetaData();
        System.out.println(rsmd.getColumnName(2)+":"+rsmd.getTableName(2)+":");
        rs.next();
        System.out.println(rs.getString("obras.nombre"));
    }
}