public void testUpdateRow_Normal() throws Exception {
JdbcRowSet jrs = newJdbcRowSet();
jrs.setCommand("SELECT * FROM USER_INFO");
jrs.setUrl(DERBY_URL);
jrs.execute();
assertTrue(jrs.absolute(3));
assertEquals(3, jrs.getInt(1));
assertEquals("test3", jrs.getString(2));
jrs.updateString(2, "update3");