query to combine two fields

hi to all, and good day..
i dont know where to post my subject, so iL give a try here.
im using Access 2000 and i want to make a query [in SQL statement]
for the (2) fields and combine them with comma delimeted.
lets say:
fieldOccupation1 fieldOccupation2 fieldOccupation
Farmers Businessman

the result after the query should be:
fieldOccupation
Farmers, Businessman

please need help badly...

thanks in advance