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 ('17', '22', '11', '25', '33', '23', '32') and c_acctbal > ( select avg(c_acctbal) from customer where c_acctbal > 0.00 and substr(c_phone, 1, 2) in ('17', '22', '11', '25', '33', '23', '32') ) and not exists ( select * from orders where o_custkey = c_custkey ) ) as vip group by cntrycode order by cntrycode; cntrycode | numcust | totacctbal -----------+---------+------------- 11 | 9013 | 6.79296e+07 17 | 9067 | 6.80846e+07 22 | 9000 | 6.73219e+07 23 | 8986 | 6.76179e+07 25 | 9111 | 6.83608e+07 32 | 9102 | 6.84201e+07 33 | 9180 | 6.88851e+07 (7 rows) COMMIT; COMMIT