Question

I have a stored procedure SP1 that calls another stored procedure SP2 like so:

CREATE PROCEDURE SP1()
BEGIN
    CALL SP2();
END

The SP2 stored proc returns a row from a table, but I don’t want SP1 to return anything. I tried declaring a dummy variable and ending SP1() with something like “SELECT 0 INTO dummy”, but nothing seems to work…

Is there simple way to make SP1 not return the row from SP2?

Answer 1

The return type of a stored procedure is Int and cannot be changed to return NULL.
This looks like The X Y Problem.
Why are you calling SP2 from SP1 ? Maybe you could change your design if the return value is causing trouble.