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create table jsondoc (id int, doc clob check (doc is json))
insert into jsondoc select 1, '{"key1":"value1","key2":"value2","key3":"value3"}' from dual
1 rows affected
create or replace package pack as type pair is record (key varchar2(8), value varchar2(16)); type pairtab is table of pair; function getpairs return pairtab pipelined; end; /
create or replace package body pack as function getpairs return pairtab pipelined is doc clob; obj json_object_t; keys json_key_list; begin select doc into doc from jsondoc; obj := json_object_t (doc); keys := obj.get_keys; for i in 1..keys.count loop pipe row (pair (keys(i), obj.get_string (keys(i)))); end loop; return; end; end; /
select * from pack.getpairs() /
KEY
VALUE
key1
value1
key2
value2
key3
value3