How to use objects in Pro*C++

Hi,
I have created a table as follows:
===========================================
CREATE TYPE pds_rec_type1_obj AS OBJECT (
service_mode char,
total_fuel_dollars NUMBER(7,2),
total_fuel_litres NUMBER(7)
CREATE TABLE pos_product_discount (
outlet_id NUMBER(5) NOT NULL,
terminal_id NUMBER(2) NOT NULL,
rt1 pds_rec_type1_obj,
===========================================
After insert one row in to the pos_product_discount table,
I can update it by using
===========================================
update pos_product_discount
set rt1 = pds_rec_type1_obj('2', 1, 1)
where outlet_id = 4736 and TERMINAL_ID = 1
===========================================
However, when I used the following SQL in Pro*C++
===========================================
EXEC SQL
UPDATE pos_product_discount
SET rt1 = pds_rec_type1_obj(:rt1ServiceMode,
:rt1TotFuelDollarsSold,
:rt1TotFuelLitresSold)
WHERE outlet_id = :pdsOutletId
AND terminal_id = :pdsTerminalId;
===========================================
I got the following error:
===========================================
ERROR: UPDATE pos_product_discount
ORA-00904: invalid column name
ERROR: Oracle SQL Error...
=============================================
Anyone can help? Thank you in advance.
Zhenjie Chen

Hi,
Please look at chapter-17 (Objects) of "Pro*C/C++ Precompiler Programmer's Guide".
You need to use "EXEC SQL OBJECT SET ... " before "EXEC SQL OBJECT UPDATE ... " statement.
- Shubho.

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