(PHP 4 >= 4.0.2, PHP 5 <= 5.0.4)
ingres_num_rows -- Get the number of rows affected or returned by the last queryThis function is mainly meant to get the number of rows modified in the database. If this function is called before using ingres_fetch_array(), ingres_fetch_object() or ingres_fetch_row() the server will delete the result's data and the script won't be able to get them.
You should instead retrieve the result's data using one of these fetch functions in a loop until it returns FALSE, indicating that no more results are available.