如何获取反向的 sys_connect_by_path()结果

SELECT path   FROM (SELECT uuid,                trim(both '>' from                     trim(both '-' from SYS_CONNECT_BY_PATH(K . NAME, '-->'))) as path           FROM region K          START WITH K.uuid =                     (SELECT uuid                        FROM (SELECT uuid, pid                                FROM region                               START WITH uuid = '610204004'                              CONNECT BY uuid = PRIOR pid)                       WHERE pid IS NULL)         CONNECT BY PRIOR K.uuid = K.pid)  WHERE uuid = '610204004'; reverse('a-->b-->c')=>'c>--b>--a不能实现；并且如果是汉字乱码