Você pode criar esta função usando PL/Scope. Mas não funcionará com blocos anônimos e você precisará referenciar a variável como uma string.
create or replace function get_plsql_type_name
(
p_object_name varchar2,
p_name varchar2
) return varchar2 is
v_type_name varchar2(4000);
begin
select reference.name into v_type_name
from user_identifiers declaration
join user_identifiers reference
on declaration.usage_id = reference.usage_context_id
and declaration.object_name = reference.object_name
where
declaration.object_name = p_object_name
and declaration.usage = 'DECLARATION'
and reference.usage = 'REFERENCE'
and declaration.name = p_name;
return v_type_name;
end;
/
Exemplo:
alter session set plscope_settings = 'IDENTIFIERS:ALL';
create or replace type my_weird_type is object
(
a number
);
create or replace procedure test_procedure is
var1 number;
var2 integer;
var3 my_weird_type;
subtype my_subtype is pls_integer range 42 .. 43;
var4 my_subtype;
begin
dbms_output.put_line(get_plsql_type_name('TEST_PROCEDURE', 'VAR1'));
dbms_output.put_line(get_plsql_type_name('TEST_PROCEDURE', 'VAR2'));
dbms_output.put_line(get_plsql_type_name('TEST_PROCEDURE', 'VAR3'));
dbms_output.put_line(get_plsql_type_name('TEST_PROCEDURE', 'VAR4'));
end;
/
begin
test_procedure;
end;
/
NUMBER
INTEGER
MY_WEIRD_TYPE
MY_SUBTYPE
