public void createTable() throws SQLException {
        String createString =
                "create table "
                + "admin.EMPLOYEE "
                + "(USERNAME varchar(20) NOT NULL, "
                + "PASSWORD varchar(20) NOT NULL, "
                + "ACCESSRIGHTS integer NOT NULL)";

        Statement stmt = null;
        try {
            stmt = conn.createStatement();
            stmt.executeUpdate(createString);
        } catch (SQLException e) {
        }

        try {
            stmt = conn.createStatement();
            ResultSet rs = stmt.executeQuery("SELECT username FROM employee WHERE username ='admin' AND password ='admin'");
            if (rs.next() == false) {
                stmt = conn.createStatement();
                stmt.executeUpdate("INSERT INTO EMPLOYEE VALUES('admin', 'admin', 3)");
            }
        } catch (SQLException e) {
        } finally {
            if (stmt != null) {
                stmt.close();
            }
        }
    }