本文介绍了如何建立3表customer_order_transaction关系?的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!

问题描述

我有3张桌子:



客户: CustomerId ,FName,LName

订单: OrderId CustomerId ,商品,价格

OrderTransaction: OrderId ,金额......



因此,客户&订单表(1对多)



我的问题是,如何正确关联 OrderTransaction 表?



我应该将OrderTransaction表与Orders表联系起来,并在两者之间建立一对多的关系吗?那么1交易可以有很多订单吗?



处理此问题的最佳方法是什么?



我尝试了什么:



我在网上发现了这个经典模式,这让我对如何去做有了解。但首先我想问你们你的建议是什么?

I have 3 tables:

Customers: CustomerId, FName, LName
Orders: OrderId, CustomerId, Item, Price
OrderTransaction: OrderId, Amount...

Thus, Customers & Orders table (1-to-many)

My question is, how can I correctly relate the OrderTransaction table?

Should I relate the OrderTransaction table to the Orders Table and make a 1-to-Many relationship between the two? So 1-transaction can have many orders?

What's the best way to handle this?

What I have tried:

I found this classical schema online which kind of gives me an idea of how to go about it. But first I wanted to ask you guys what your recommendation would be classical schema

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10-27 01:34