public static void loadFromMySQL(String url, final String userId, final String password) throws SQLException {
		Connection conn = null;
		url = "jdbc:mysql://" + url;
		try {
			Class.forName("com.mysql.jdbc.Driver").newInstance();
			conn = DriverManager.getConnection(url, userId, password);
			loadSectionsFromMySQL(conn);
			loadStudentsFromMySQL(conn);
			loadRelationshipFromMySQL(conn);
		} catch (final InstantiationException e) {
			e.printStackTrace();
		} catch (final IllegalAccessException e) {
			e.printStackTrace();
		} catch (final ClassNotFoundException e) {
			e.printStackTrace();
		} finally {
			if (conn != null) {
				try {
					conn.close();
				} catch (final Exception e) { }
			}
		}
	}