Update DML Operation Control Return Integer as Status

SmartClient Version: v9.1p_2015-02-07/PowerEdition Deployment (built 2015-02-07)

I'm doing a custom 'update' operation on SQL Server. The SQL code contains many DML statements. Within the SQL I have a simple integer variable,

DECLARE @RC int = 0;

Depending on certain conditions I may set the @RC variable to something other than 0. I want to read this value and pass it back through the DSResponse.

I have tried unsuccessfully to get the variable to be reflected in :

affectedRows,
queueStatus,
status,
data

fields of the DSResponse but have failed.

Other than causing the SQL code to throw an exception I can't seem to get the integer status returned.

I have tried in the DML sequence using this:

SELECT @RC

also using the OUTPUT clause of an INSERT statement:

INSERT INTO Fake_Table ( RC )
OUTPUT INSERTED.RC
Values ( @RC)

and nothing works. Any suggestions?

Naturally if I run this DML sequence in a SQL query it works just fine returning the integer status.

I have to use the 'update' operation Type because of the DML statements, thus calling the underlying executeUpdate() JDBC method.

Somebody must have solved this problem before.