采购订单支付金额解决方法

（postgres数据库）

采购订单表基本结构:inbound_order

database_id bigint NOT NULL, //数据库主键
order_number character varying(255), //订单号
total_amount double precision, //订单总价格
paid_amount double precision, //已经支付的金额

采购订单明细表基本结构:inbound_order_item

database_id bigint NOT NULL, //数据库主键
order_number character varying(255), //订单号
item_number integer, //订单明细项编号
refer_order_number character varying(255), //引用订单号
refer_item_number integer,//引用订单明细项编号

采购支付表基本结构:inbound_payment
database_id bigint NOT NULL, //数据库主键
order_number character varying(255), //订单号

采购支付明细表基本结构: inbound_payment_item

database_id bigint NOT NULL,//数据库主键
order_number character varying(255), //订单号
item_number integer, //订单明细项
refer_order_number character varying(255), //引用订单号
sub_total_amt double precision, //支付总金额
refer_order_amount double precision, //引用订单总金额
refer_order_paid double precision, //引用订单支付金额
refer_order_returned double precision, //引用订单退款金额
refer_order_unpaid double precision, //引用订单未支付金额

在程序中通过查询数据库视图，此视图结构如下：: view_payment_info

CREATE OR REPLACE VIEW view_payment_info AS
SELECT v.order_number, v.class_name, v.paid_amount, v.paid_amount_real
FROM view_temp_payment_infov
WHERE v.paid_amount <> v.paid_amount_real;

通过比较paid_amount(采购订单总金额)和paid_amount_real(支付订单明细总金额)，要是此视图中存在记录，则存在对应采购订单的支付记录，然后通过修改class_name(inboud_order)设置paid_amount=paid_amount_real即可。。