text: -- @author tungs1
  -- @modified 2013-07-28 12:00:00
  -- @created 2013-07-28 12:00:00
  -- @description groupingfunction groupingfunc52.sql
  -- @db_name groupingfunction
  -- @executemode normal
  -- @tags groupingfunction
  -- order 1
  SELECT GROUPING(product.pname) as g1, GROUPING(sale.pn) as g2 FROM product, sale WHERE product.pn=sale.pn GROUP BY ROLLUP((sale.pn,product.pname)) ORDER BY g1,g2;
  