C++ interface

I have HedHat 7.1 on linux

I made the c++ interface with the --with-CXX option during configure
process.

The make had no problem.

I have run a test.

I have created a database it works find in interactive mode.

if I type select * from cds it will give me some output,

But my C++ program that can be compiled successfully cannot do this
simple command.

It could something else
!data.ExecCommandOk("BEGIN")
!data.ExecCommandOk("DECLARE myportal CURSOR FOR select * from
pg_database") ) {
if ( !data.ExecTuplesOk("FETCH ALL in myportal") )

Where should I start to fix this problem?

Kemin