Could not execute stored procedure

Question

hello,
I have a stored procedure in oracle and I want to call it from a java bean. The stored procedure works when I did an "EXEC change_info()" call.
However, when I tried it in the Java Bean using:
CallableStatement stmt = conn1.prepareCall("{call change_info(?,?,?,?,?)}");
or
CallableStatement stmt = conn1.prepareCall("BEGIN change_info(?,?,?,?,?); END;");
stmt.execute();
The stored procedure doesn't work any more, i.e., it doesn't change the information. There are no errors or warnings indicating that there was any problems with the stored procedure.
Does anyone have any idea what I can do to make the stored procedure work?
Thanks for your help

Answer 1

sorry, I missed out a section of my code from the original post:
CallableStatement stmt = conn1.prepareCall("{call change_info(?,?,?,?,?)}");
or
CallableStatement stmt = conn1.prepareCall("BEGIN change_info(?,?,?,?,?); END;");
stmt.setString(1, 'id001938');
stmt.setString(2, 'namename');
stmt.setString(3, '1');
stmt.setString(4, '15');
stmt.setString(5, 'id002837');
stmt.execute();
thanks