我希望我能以一种可以理解的方式描述我的挑战.我在Oracle Database 12c上有两个表,如下所示:
表名"发票"
I_ID | invoice_number | creation_date | i_amount
------------------------------------------------------
1 | 10000000000 | 01.02.2016 00:00:00 | 30
2 | 10000000001 | 01.03.2016 00:00:00 | 25
3 | 10000000002 | 01.04.2016 00:00:00 | 13
4 | 10000000003 | 01.05.2016 00:00:00 | 18
5 | 10000000004 | 01.06.2016 00:00:00 | 12
表名"付款"
P_ID | reference | received_date | p_amount
------------------------------------------------------
1 | PAYMENT01 | 12.02.2016 13:14:12 | 12
2 | PAYMENT02 | 12.02.2016 15:24:21 | 28
3 | PAYMENT03 …