5. The method of claim 2 wherein: the table definition syntax includes listing an ordered list of column name assignments; and the group definition syntax includes placing delimiting characters within the ordered list of column names to delimit the groups.
5. The method of claim 2 wherein: the table definition syntax includes listing an ordered list of column name assignments; and the group definition syntax includes placing delimiting characters within the ordered list of column names to delimit the groups. 6. The method of claim 5 wherein the group definition syntax further includes placing group IDs within the ordered list of column names.