Oracle read and return data from cursor - oracle

Question

I'm trying to create a stored procedure in Oracle that has one input parameter and one output variable and, in case of results, return a dataset to my .Net Application. The main issue is that I can't change the signature of the procedure and need to do if condition to validate if exist records or not.
The main issue that i've being struggled is with cursors (to execute and return the information), and to count the results of the select.
Here is an example of what i'm doing to try to retrieve the data.
CREATE PROCEDURE SP_Testing (v_input IN VARCHAR2(50), v_OutID NUMBER(1))
AS
TYPE v_record_botoes IS RECORD (
v_dummy_col1 VARCHAR2(50),
v_dummy_col2 VARCHAR2(250)
);
TYPE table_botoes IS TABLE OF v_record_botoes;
tt_botoes table_botoes;
v_ref_cursor SYS_REFCURSOR;
CURSOR v_cursor IS
(SELECT dt.v_dummy_col1,
dt.v_dummy_col2
FROM dummy_table dt
WHERE v_dummy_col3 = v_input);
v_check NUMBER;
BEGIN
tt_botoes := table_botoes();
v_check := 0;
FOR v_row IN v_cursor
LOOP
tt_botoes.extend;
tt_botoes(tt_botoes.COUNT) := v_row;
END LOOP;
v_check := tt_botoes.COUNT;
-- condition that need to know the nr of records of the select
IF v_check = 0 THEN
v_OutID := 0;
ELSE
v_OutID := 1;
OPEN v_ref_cursor FOR
SELECT *
FROM tt_botoes; -- also tryed "FROM TABLE (tt_botoes)" and "FROM TABLE (cast(tt_botoes AS table_botoes))"
-- return dataset to .net application
DBMS_SQL.RETURN_RESULT(v_ref_cursor)
END IF;
END;
Already tryed to convert the v_cursor into a sys_refcursor to be outputed by the DBMS_SQL package but didn't get anywhere.
Also i've tried to create a temporary table to hold the information, but then have a concurrency issue.
Any idea what i'm doing wrong, or any other possible solution to solve this issue?
Thanks in advance

Answer 1

Completely untested because I do not have the environment to test it but I would structure this quite differently, see below (I am assuming that the missing out in the specification is just a typo)
CREATE PROCEDURE SP_Testing (v_input IN VARCHAR2(50), v_OutID **out** NUMBER(1))
AS
v_ref_cursor SYS_REFCURSOR;
v_check NUMBER;
BEGIN
select count(1)
into v_check
from dummy_table dt
WHERE v_dummy_col3 = v_input
-- condition that need to know the nr of records of the select
IF v_check = 0 THEN
v_OutID := 0;
ELSE
v_OutID := 1;
OPEN v_ref_cursor FOR
SELECT dt.v_dummy_col1,
dt.v_dummy_col2
FROM dummy_table dt
WHERE v_dummy_col3 = v_input
-- return dataset to .net application
DBMS_SQL.RETURN_RESULT(v_ref_cursor)
END IF;
END;