### - u -

- undefined_column() : pqxx::undefined_column
- undefined_function() : pqxx::undefined_function
- undefined_table() : pqxx::undefined_table
- underflow() : pqxx::field_streambuf< CHAR, TRAITS > , pqxx::largeobject_streambuf< CHAR, TRAITS >
- unique() : pqxx::internal::unique< GUEST >
- unknown_position() : pqxx::Cursor::unknown_position
- unprepare() : pqxx::connection_base
- Unregister() : pqxx::internal::unique< GUEST >
- unregister_me() : pqxx::internal::transactionfocus
- username() : pqxx::connection_base