Create Toad Stored Procedure?

I am trying to create a stored procedure in TOAD. I've found example code on the Internet to write a stored procedure, but it doesn't seem to work with Toad. I tried to write the procedure and execute it to save it to the DB, and instead I keep getting error messages like "an INTO clause is expected in this SELECT statement" when I used the

CREATE OR REPLACE PROCEDURE testing
AS
BEGIN
SELECT *
FROM CPK;
END;

or "bad bind variable 'CPKS'" when I tried the following instead:

CREATE OR REPLACE PROCEDURE testing
AS
BEGIN
SELECT *
FROM CPK;
Into :Cpks;
END;

post some example code here with short explanations for me on how to write a stored procedure.