BEGIN; BEGIN select cntrycode, count(*) as numcust, sum(c_acctbal) as totacctbal from ( select substr(c_phone, 1, 2) as cntrycode, c_acctbal from customer where substr(c_phone, 1, 2) in ('32', '11', '33', '26', '23', '34', '17') and c_acctbal > ( select avg(c_acctbal) from customer where c_acctbal > 0.00 and substr(c_phone, 1, 2) in ('32', '11', '33', '26', '23', '34', '17') ) and not exists ( select * from orders where o_custkey = c_custkey ) ) as vip group by cntrycode order by cntrycode; cntrycode | numcust | totacctbal -----------+---------+------------- 11 | 9008 | 6.79046e+07 17 | 9060 | 6.80496e+07 23 | 8981 | 6.75929e+07 26 | 9016 | 6.77199e+07 32 | 9095 | 6.83851e+07 33 | 9175 | 6.88601e+07 34 | 9119 | 6.834e+07 (7 rows) COMMIT; COMMIT