Running SQL Procedure with dg4msql errors: Function sequence error HY010

Question

I am trying to execute a stored procedure on a SQL database and get the error Function sequence error HY010.
A simple query on a table returns teh expected result.
I have a single Win2008R2 server with MSSQL Express 2008 and Oracle 11gR2 (32bit not 64bit version of Oracle)
Below is the gateway init, listener and tnsnames files and the query I am trying to run:
-- initORIONWASP.ora --
HS_FDS_CONNECT_INFO=INGRDB//waspForGIS
HS_FDS_TRACE_LEVEL=OFF
HS_FDS_RECOVERY_ACCOUNT=RECOVER
HS_FDS_RECOVERY_PWD=RECOVER
HS_CALL_NAME=dbo.spTest;dbo.spQueryAsset;dbo.spQueryAssetDetails
HS_FDS_PROC_IS_FUNC=TRUE
HS_FDS_RESULTSET_SUPPORT=TRUE
-- Listener.ora -- (partial)
(SID_DESC =
(SID_NAME = ORIONWASP)
(ORACLE_HOME = C:\Oracle\product\11.2.0\dbhome_1)
(PROGRAM=dg4msql)
-- tnsnames.ora -- (partial)
ORIONWASP =
(DESCRIPTION=
(ADDRESS=(PROTOCOL=tcp)(HOST=INGRDB)(PORT=1521))
(CONNECT_DATA=(SID=ORIONWASP))
(HS=OK)
-- Simple Query --
Running select "Asset_ID" from asset@ORIONWASP; returns the correct result
Running select * from sys.procedures@ORIONWASP; returns a list of procedures including the procedure I want to run
-- This pl/sql block returns the error ******* identifier 'spTest@ORIONWASP' must be declared *******
declare
begin
"spTest"@ORIONWASP;
end;
-- This passthrough pl/sql block returns ******** [Oracle][ODBC SQL Server Driver]Function sequence error {HY010} ********
DECLARE
CRS BINARY_INTEGER;
RET BINARY_INTEGER;
v_COL1 VARCHAR2(50);
v_COL2 VARCHAR2(50);
BEGIN
CRS := DBMS_HS_PASSTHROUGH.OPEN_CURSOR@ORIONWASP;
DBMS_HS_PASSTHROUGH.PARSE@ORIONWASP(CRS, 'exec spTest');
BEGIN
RET := 0;
WHILE (TRUE)
LOOP
ret := DBMS_HS_PASSTHROUGH.FETCH_ROW@ORIONWASP(CRS, FALSE);
DBMS_HS_PASSTHROUGH.GET_VALUE@ORIONWASP(CRS, 1, v_COL1);
DBMS_HS_PASSTHROUGH.GET_VALUE@ORIONWASP(CRS, 2, v_COL2);
DBMS_OUTPUT.PUT_Line('Col1:'||v_COL1||' Col2:'||v_COL2);
END LOOP;
EXCEPTION
WHEN NO_DATA_FOUND THEN
BEGIN
DBMS_OUTPUT.PUT_LINE('End of Fetch');
DBMS_HS_PASSTHROUGH.CLOSE_CURSOR@ORIONWASP(CRS);
END;
END;
END;
/

Answer 1

The gateway configuration file contains:
HS_FDS_PROC_IS_FUNC=TRUE
HS_FDS_RESULTSET_SUPPORT=TRUE
This setting commonly causes problems and you need to set
HS_FDS_PROC_IS_FUNC=TRUE
HS_FDS_RESULTSET_SUPPORT=FALSE
for normal procedure calls and
HS_FDS_PROC_IS_FUNC=FALSE
HS_FDS_RESULTSET_SUPPORT=TRUE
when calling the procedure with ref cursors.
There's a note in My Oracle Support that gives you examples how to call remote SQl Server procedures
     Note.197192.1 Different Methods How To Call MS SQL Server Procedures Using TG4MSQL - DG4MSQL
and another one for the Sybase gateway but this code is similar for the SQL Server:
Article-ID: Note 351400.1
Title: How to Call a Remote Sybase Procedure Using TG4SYBS