Hi,
This should work:
SELECT Left(name_field, (Iif(InStr(1, name_field, ',') > 0, InStr(1, name_field, ',')-1, 0))) as last_name, Mid(name_field, InStr(1,name_field, ',') + 1) as first_name from table_name
BTW, the Iif is there to take care of the case where there would be no comma in the...