使用1个查询获得2个查询的结果

Question

我在同一表transactions中有2个以下查询。

transactions表具有以下两列，在这里与之相关：registrationId，total和totalPaid。

要获取所有付费交易，我会在查询后运行

Select SUM(transactions.totalPaid) as netPaid from transactions where deleted is null group by registrationId

要获取所有未付交易，我运行以下查询

Select SUM(transactions.total - transactions.totalPaid) as unPaid from transactions where ((totalPaid < total) OR (total < 0)) and deleted is null group by registrationId

如何合并查询并一次性获得两个结果？

谢谢

Answer 1

您可以在case列中使用unPaid语句。

Select sum(transactions.totalPaid) as netPaid
    , sum(case when (totalPaid < total) OR (total < 0) then transactions.total - transactions.totalPaid else 0 end) as unPaid
from transactions 
where deleted is null 
group by registrationId