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SQL code:

--½¨±í
create table code_t_division(codeid varchar2(50), codename varchar2(100));
insert into CODE_T_DIVISION (CODEID, CODENAME)
values ('610', 'Öйú');
insert into CODE_T_DIVISION (CODEID, CODENAME)
values ('610001', 'ÖØÇì');
insert into CODE_T_DIVISION (CODEID, CODENAME)
values ('610001001', 'ÓÀ´¨');
insert into CODE_T_DIVISION (CODEID, CODENAME)
values ('610002', '³É¶¼');
insert into CODE_T_DIVISION (CODEID, CODENAME)
values ('610002001', 'µÂÑô');
insert into CODE_T_DIVISION (CODEID, CODENAME)
values ('610002002', 'ÃàÑô');
commit;
--´´½¨º¯Êý
create or replace function getAllName(i_codeid varchar2) return varchar2 is
result varchar2(4000);
begin
SELECT wmsys.wm_concat(t.codename)
into result
from code_t_division t
START WITH t.codeid = i_codeid
CONNECT BY t.codeid = PRIOR substr(t.codeid, 1, length(t.codeid) - 3)
ORDER BY t.codeid;


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