Ronnie Chowdhury <ronnie.c995 at gmail.com> writes: > #pragma db type ("INTEGER") > std::vector<boost::posix_time::ptime> ts; // Fails How do you expect a vector to be mapped into an integer in the database? Perhaps what you mean is this: #pragma db value_type ("INTEGER") std::vector<boost::posix_time::ptime> ts; Boris