SQL & PL/SQL

Hello all,

I am running a Select query through a batch file that extracts data from an Oracle database. Several of the fields that I am extracting from contain numbers that are up to 38 digits long. When I extract the data, it converts the numbers into scientific notation and it is important for me to have the entire field. Is there something I can change to my query that will pull the data in its entire form? This is what I'm running now:

select * FROM ML.APPT where APPTDATE >= to_date('01/1/2010','mm/dd/yyyy'

I apologize in advance if this has been answered already.

Thanks!