oracle convert string parameter of stored procedure to number array - oracle

Question

I am writing a stored procedure that needs an WHERE IN clause with an array of numbers. How can I pass this array of numbers to the SP.
What I thought is sending a string like '123,234,345' and than parse it in the SP before using it. Is this a good way of doing it? If yes, how can I make the below code work?
CREATE OR REPLACE PROCEDURE sp_test2
(
ids in varchar2,
cursor_ OUT SYS_REFCURSOR
)
AS
BEGIN
OPEN cursor_ FOR
SELECT *FROM my_table
WHERE my_table.ID IN (
SELECT regexp_substr(ids,'[^:]+', 1, level) AS list FROM dual
CONNECT BY regexp_substr(ids, '[^:]+', 1, level) IS NOT NULL);
END;
/
For example (instead of the conversion code) when use like this: IN(ids)
i get ORA-01722: invalid number error

Answer 1

I really don't want to complicate things
If that's ok with you to simply pass a string of numbers separated by commas as a parameter and split it afterwards, then you can do it like this:
SELECT *FROM my_table
WHERE my_table.ID IN (
SELECT regexp_substr(ids,'[^,]+', 1, level) AS list FROM dual
CONNECT BY regexp_substr(ids, '[^,]+', 1, level) IS NOT NULL);
However, I don't think that using a collection complicates things too much.

Answer 2

Like I suggested, here is how to achieve it using dynamic SQL.
create or replace procedure sp_test2(IDS in varchar2, CURSOR_ out SYS_REFCURSOR)
is
L_SQL varchar2(400);
begin
L_SQL := 'select * from MY_TABLE where ID in (' || IDS || ')';
open CURSOR_ for L_SQL;
end;