Row

db_alloc_cursor_row db_alloc_row db_bind_destroy db_bind_field db_bind_init db_free_row db_get_field_buffer db_get_field_data db_get_field_len db_get_field_size db_get_field_type db_is_null db_row_t db_set_field_data db_set_field_len db_set_null db_unbind_field

int db_is_null ( db_row_t  hrow, db_fieldno_t  nfield   ) Checks to see if the given field is null. Parameters: hrow  Row handle. nfield  Field number. Returns: (1) when the given field is null. (0) when the given field contains data. (-1) on failure. On failure, one of the following error codes is set: DB_EINVAL Invalid row handle. DB_EFIELD Field identified by nfield does not exist. See also: get_db_error, clear_db_error, Error Handling