Did OPNQRYF give out an empty record set?

[afvaiv <afvaiv@xxxxxxxxxx>]

An CL pgm does an OVRDBF xxxx  SHARE(*YES), then executes an OPNQRYF,
then runs an RPG pgm. Sometimes the selected conditions result in an
empty selection, so the RPG pgm reading ( I P , sequential processing)
the opened file will directly set  LR and end.
If this was a normal file, I could know in advance the file was empty
with RTVMBRD  number of records, but cannot with the result of the
OPNQRYF.
Is there any way to find out whether the result file is/isnot empty
before running the RPG pgm?
TIA
-------------------------
Antonio Fernandez-Vicenti
afvaiv@wanadoo.es