Error 328 when calling a HANA function via JDBC

Dear all,

I'm trying to call a HANA function via JDBC and receive error 328 "invalid name of function or procedure" although the function exists in the catalog and is accessible.

Let's define an example:

create function myfunc ( in inpar1 varchar(30), in inpar2 varchar(30)) returns outpar1 varchar(30) as

begin outpar1 := concat(left(inpar1,1),inpar2); end

The following JDBC call leads to an exception with error 328.

String storeFunc = "{? = call myfunc(?,?)}";

try {

     callableStatement = connection.prepareCall(storeFunc);

} catch (SQLException e) {

     System.out.println(e.getMessage());

}

The almost identical coding works well when calling a HANA procedure.

Again an example:

create procedure myproc (in inpar1 varchar(30), in inpar2 varchar(30),out outpar1 varchar(30)) as

begin outpar1 := concat(left(inpar1,1),inpar2); end

The following JDBC call works as expected:

String storeProc = "{call myproc(?,?,?)}";

try {

     callableStatement = connection.prepareCall(storeProc);

} catch (SQLException e) {

     System.out.println(e.getMessage());

}

Does anybody have an idea to resolve this problem ?

Thanks in advance !

Best regards

Florian