text: open "don";
  .
  script "../tests/test4.dml";
  .
  select * from products_sale where sold>5 and buyerid<=2500;
  .
  select buyer_name from buyer where buyer_id=2673;
  .
  select p_name from products where p_id=1;
  .
  update products set p_name="aaa" where p_id=19135;
  .
  commit;
  .
  update products set p_name="bbb" where p_id=19135;
  .
  abort;
  .
  delete products_sale where buyerid=2029;
  .
  commit;
  .
  select p_name,buyer_name,sold
  from products,buyer,products_sale
  where p_id=pid and buyer_id=buyerid and buyerid=2001;
  .
  close;
  .
  open "bansal";
  .
  script "../tests/test4.dml";
  .
  select * from products_sale where sold>5 and buyerid<=2500;
  .
  select buyer_name from buyer where buyer_id=2673;
  .
  close;
  .
  exit;
  .
  