I’m building a proof-of-concept C++ application that uses ODBC to create an Order with line items where I’m using a table type to hold the line items and then pass the type to a stored procedure along with an customer id.
Unfortunately, I’m getting the following ODBC driver error message when I attempt to make the call:
Error-Thread 1-[SAP AG][LIBODBCHDB DLL][HDBODBC] General error;7 feature not supported: Parameterized input table parameter is not allowed: Line 1 col 30 (at pos 29) [SAP AG][LIBODBCHDB DLL][HDBODBC] General error;-10210 Invalid command state (No prepared SQL command)
Does the HANA ODBC driver support passing a table type? If so, is there a trick to it. If not, do you have suggestions for a workaround?
Here is some of the relevant SAP HANA code that makes up the app.
-- Define the type for calling usp_InsertOrder procedure
CREATE TYPE "DBO"."INMEMDBTVPORDERS" AS TABLE
(
"SEQ" INT CS_INT NOT NULL,
"PR_ID" BIGINT CS_FIXED NOT NULL,
"PR_QTY" INT CS_INT
);
-- usp_InsertOrder procedure using a TVP
CREATE PROCEDURE dbo.usp_InsertOrder
(IN C_ID bigint,
IN ORDERS dbo.InMemDBTVPOrders)
AS
BEGIN
DECLARE CurrentRow integer;
DECLARE RowsToProcess integer;
DECLARE Pr_Id bigint;
DECLARE Pr_Qty integer;
DECLARE Order_Id bigint;
DECLARE Pr_Price decimal(9,2);
DECLARE TotalPrice decimal(12,2);
DECLARE CurrentDate timestamp;
CurrentDate := CURRENT_TIMESTAMP;
TotalPrice := 0;
--insert an Order record to claim the O_ID
INSERT INTO dbo.Orders (O_ID, O_C_ID, O_TOTAL, O_DTS) VALUES (dbo.ORDERS_ID.NEXTVAL, :C_ID, 0, :CurrentDate);
-- get the inserted order id
SELECT dbo.ORDERS_ID.CURRVAL into Order_ID FROM DUMMY;
-- now process the order lines
INSERT INTO dbo.OrderLines
SELECT :Order_ID,
O.SEQ,
O.PR_ID,
O.PR_QTY,
P.PR_PRICE,
:CurrentDate
FROM :ORDERS O INNER JOIN dbo.Products P ON (O.PR_ID = P.PR_ID);
--SELECT @TotalPrice = ISNULL(SUM(OL_PRICE),0)
SELECT Ifnull(SUM(OL_PRICE),0) into TotalPrice
FROM dbo.OrderLines
WHERE OL_O_ID = :order_id;
-- now update the order with the total price
UPDATE dbo.Orders
SET O_TOTAL = :TotalPrice
WHERE O_ID = :Order_Id AND
O_C_ID = :C_ID;
SELECT :order_id,
:C_ID,
:TotalPrice
FROM DUMMY;
END;
Here is the test code that we used to make sure the type passing works in HANA.
CREATE PROCEDURE dbo.Util_TestOrderInsert
(OUT tvp "DBO"."INMEMDBTVPORDERS")
LANGUAGE SQLSCRIPT
AS
BEGIN
tvp = SELECT 1 AS "SEQ", 3678 AS "PR_ID", 100 AS "PR_QTY" FROM DUMMY;
CALL dbo.usp_InsertOrder(3428, :tvp);
END;
I have a version of the C++ application that works fine with SQL Server and it’s table type, but when moving to HANA, this is the only call that fails.
Regards,
Bill
