Oracle can return case-sensitive column-names:
SQL> create table test (id number, thing varchar2(10));

Table created.

SQL> insert into test(id, thing) values (1, ‘One’);

1 row created.

SQL> commit;

Commit complete.

SQL> select id as Id, thing as Thing from test;

ID THING select id as “Id”, thing as “Thing” from test;

Id Thing