Sql 筛选自联接并仅包括与嵌套联接不匹配的行
我有以下伪表:postgresqlSql 筛选自联接并仅包括与嵌套联接不匹配的行,sql,postgresql,subquery,left-join,where-clause,Sql,Postgresql,Subquery,Left Join,Where Clause,我有以下伪表:postgresql Payment id: number; groupId: number; status: [Pending|Executed]; PaymentLog id: number; paymentId: number; date: Date; // YYYY-DD-MM 获取所有待处理的付款 但如果PaymentLog中的一行引用同一groupId下的付款并匹配特定日期,则排除付款 我试过类似的东西 SELECT
Payment
id: number;
groupId: number;
status: [Pending|Executed];
PaymentLog
id: number;
paymentId: number;
date: Date; // YYYY-DD-MM
获取所有待处理的付款
但如果PaymentLog中的一行引用同一groupId下的付款并匹配特定日期,则排除付款
我试过类似的东西
SELECT p1.id FROM Payment
JOIN Payment p2 ON p1.groupId = p2.groupId
LEFT JOIN PaymentLog p3 ON p2.id = p3.paymentId AND date = '2020-09-06'
WHERE
p3.id IS NULL
GROUP BY p2.id
但是,如果PaymentLog在引用与日期不匹配的付款时有与groupId匹配的项目,则此项也将匹配。我怀疑您希望的项目不存在:
我将在不存在的条件下执行此操作:
select p.id
from payment p
where p.status = 'Pending'
and not exists (select *
from paymentlog log
join payment p2 on log.paymentid = p2.paymentid
where log.groupid = p.groupid
and p2.id <> p.id
and log."date" = date '2020-09-06')
临时工
从付款中选择p1.id
在p1.groupId=p2.groupId上加入付款p2
-是。。。。
-如果需要,在这里分组。或DISTINCTp1.id
从temp t中选择id
t.id=p3.paymentId上的左连接PaymentLog p3
哪里
日期='2020-09-06'且p3.id为空
select p.id
from payment p
where p.status = 'Pending'
and not exists (select *
from paymentlog log
join payment p2 on log.paymentid = p2.paymentid
where log.groupid = p.groupid
and p2.id <> p.id
and log."date" = date '2020-09-06')