SQL 查询以查看 Sims 是否加起来答案

【问题标题】：SQL Query To See if Sums Dont Add UpSQL 查询以查看 Sims 是否加起来
【发布时间】：2020-01-02 06:08:47
【问题描述】：

我有下面两个表在一个数据库中

有没有SQL查询可以从invoice明细表中获取所有invoicesamounts，看invoicenum中detailamount的总和是否与invoice表中对应invoice number的总invoiceamount相加？

发票表

invoicenum | invoicedate | invoiceamount
-----------+-------------+--------------
00551198 | 1/1/2014 | $150.5
00551199 | 1/2/2014 | $10

发票明细表

invoicenum | trackingno | detailamount
-----------+--------------------+-------------
00551198 | 1Z2F12346861507266 | $50
00551198 | 1Z2F12346861507267 | $80
00551198 | 1Z2F12346861507268 | $20.5
00551199 | 1Z2F12346861503423 | $10.5

【问题讨论】：

标签： sql qsqlquery

【解决方案1】：

聚合和join 应该可以解决问题：

select i.*, id.sumdetail
from invoices i left join
     (select id.invoicenum, sum(detailamount) as sumdetail
      from invoicedetail id
      group by id.invoicenum
     ) id
     on i.invoicenum = id.invoicenum
where id.sumdetail <> i.invoicenum or id.sumdetail is null;

【讨论】：

【解决方案2】：

这是您的查询

select *, case when t1.s=i.invoiceamount then 'equal' else 'not equal' end from invoice i 
left join
(select sum(detailamount) as s, invoicenum from invoicedetail group by invoicenum) as t1
on t1.invoicenum = i.invoicenum

【讨论】：