诺依曼型递归集合
-- 建表 drop table if exists accounts; create table accounts( prc_date date, prc_amt int8 ); insert into accounts values(20061026,12000); insert into accounts values(20061028,2500); insert into accounts values(20061031,-15000); insert into accounts values(20061103,34000); insert into accounts values(20061104,-5000); insert into accounts values(20061106,7200); insert into accounts values(20061111,11000); --测试 select prc_date, a1.prc_amt, (select sum(prc_amt) from accounts a2 where a1.prc_date >= a2.prc_date) as onhand_amt from accounts a1 order by prc_date;