create table test_wx
(id varchar2(30),
 pid varchar2(30),
 type varchar2(30)
);
insert into test_wx (ID, PID, TYPE)
values ('10', '0', 'A');

insert into test_wx (ID, PID, TYPE)
values ('1010', '10', 'B');

insert into test_wx (ID, PID, TYPE)
values ('1011', '10', 'C');

insert into test_wx (ID, PID, TYPE)
values ('101010', '1010', 'D');

insert into test_wx (ID, PID, TYPE)
values ('10101010', '101010', 'E');

insert into test_wx (ID, PID, TYPE)
values ('1010101010', '10101010', 'F');

insert into test_wx (ID, PID, TYPE)
values ('101010101011', '1010101010', 'H');
 

1.查詢id = ‘101010101011’的所有上級葉子節點資訊

select a.*
  from test_wx a
 start with a.id = '101010101011'
connect by prior a.pid = a.id;

2.查詢id = ‘101010101011’的上級葉子節點資訊，截止到type='B'

select level, a.*
  from test_wx a
 where level <= (select level
                   from test_wx a
                  where a.type = 'B'
                  start with a.id = '101010101011'
                 connect by prior a.pid = a.id)
 start with a.id = '101010101011'
connect by prior a.pid = a.id;