Select groupping by one column

Hello list,

I have a table called pedh that looks like this:

REFNO    FECHA        OCNUM    PVD
0199    10/12/2003    5224    632
0199    10/12/2003    5224    632
1264    10/18/2003    8991    210
1264    10/18/2003    8991    210
1264    10/18/2003    8991    210
9093    10/20/2003    6895    520
9093    10/20/2003    6895    520

I need to select one record groupped by column refno, I tried using this
code:

select refno, max(fecha), max(ocnum), max(pvd) from pedh

It seems to work fine, but is there another way to get the same result
avoing use of aggregate functions?


Thanks in advance




--
Josué Maldonado