MAccessic 搜索不一致的记录

Question

我有一个包含 InvoiceNAME、InvoiceSUM 列的 table INVOICES 和一个包含 InvoiceNAME、ItemNAME、ItemPRICE 和 ItemQTY 列的其他 INVOICEitems。通过 InvoiceNAME 字段连接的表。

我想要 select INVOICES table 中的所有行，其中 InvoiceSUM 不等于与 InvoiceNAME 相关的 ItemPRICE*ItemQTY 的总和。换句话说，我想列出不一致的记录，其中 InvoiceSUM 不等于项目总数。

Answer 1

一种方法使用相关子查询：

select i.*
from invoices as i
where i.invoicesum <> (select sum(ii.price * ii.quantity)
                       from INVOICEitems as ii
                       where ii.InvoiceNAME = i.InvoiceNAME
                      );

Answer 2

您可能还想在结果集中显示订单项的值。如果是这样，加入更合适：

select i.*, ii.item_sum
from invoices as i
inner join (
    select invoice_name, sum(item_qty * item_price) as item_sum
    from invoice_items
    group by invoice_name
)  as ii on ii.invoice_name = i.invoice_name
where i.invoice_sum <> ii.item_sum

MAccessic 搜索不一致的记录

MSaccess search inconsistent records

sql

ms-access

join

sum

subquery