*/
jrs = newJoinRowSet();
JdbcRowSet jdbcRs = newJdbcRowSet();
jdbcRs.setCommand("SELECT * FROM USER_INFO");
jdbcRs.setUrl(DERBY_URL);
jdbcRs.execute();
jdbcRs.setMatchColumn(1);
jrs.addRowSet(jdbcRs);
// add a CachedRowSet with table name
crset = newNoInitialInstance();
crset.populate(st.executeQuery("SELECT * FROM BOOKS"));