I have a dataset that has a datatable that has say 5 columns all int's and a primary key column that is a person_id. Can I write a select aganist the datatable eg. select sum(col1),sum(col2) from datatable? The datatable has a select method but that only lets me specify a where clause. Also I know I can create a parent child and do an aggregate function - but I was hoping I can query the dataset (since it in essence a database table) directly with SQL.