Hi Boris, I was mixing code from another library and ODB in my mind. sorry for that. =D > In ODB, this will be just: > #pragma db value > class Whatever > { > public: > long m_id; > QByteArray m_variantData; > }; > No registration required ;-). Best Regards! -- Atentamente. Luis Valdes luisvaldes88 at gmail.com (0994) 205 781