create or replace type t_ret_table is table of varchar2(20);
create or replace function f_test(var_num in integer) return t_ret_table is
var_out t_ret_table;
begin
var_out := t_ret_table();
var_out.extend(var_num);
for i in 1..var_num loop
var_out(i) := i;
end loop;
return var_out;
end f_test;
/set serverout on
declare
aa t_ret_table;
begin
aa := f_test(10);
for i in 1..aa.count loop
dbms_output.put_line(aa(i));
end loop;
end;
/
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