BEGIN; BEGIN select n_name, sum(l_extendedprice * (1 - l_discount)) as revenue from customer, orders, lineitem, supplier, nation, region where c_custkey = o_custkey and l_orderkey = o_orderkey and l_suppkey = s_suppkey and c_nationkey = s_nationkey and s_nationkey = n_nationkey and n_regionkey = r_regionkey and r_name = 'ASIA' and o_orderdate >= date '1996-01-01' and o_orderdate < date '1996-01-01' + interval '1 year' group by n_name order by revenue desc; n_name | revenue ---------------------------+------------------ VIETNAM | 533519453.843094 INDIA | 531326210.856702 CHINA | 527490447.323136 JAPAN | 524908183.054153 INDONESIA | 524706706.870701 (5 rows) COMMIT; COMMIT