用户购买产品后如何减少数据库中的余额/金额 [英] How to reduce the balance/amount in database once user buy the product

问题描述

大家好吧

i我正在做一个创建EC网站的作业

i被困在数据库领域，我知道我应该选择哪个数据库

i需要一个可以在购买产品后减少用户数量的代码

Hi everyone
i am doing a assignment that is create a EC website
i was stuck in the database field,i dun know what database should i choose
i need a code that can reduce the amount of the user once he purchase a product

推荐答案

无论您选择哪种数据库，您都可能遇到某种情况，即您必须执行 CRUD [ ^ ]操作。



一旦你按照这个，你当然可以自己解决问题。 :)



-KR

Whatever database you choose, you may come across certain situation that you have to perform CRUD[^] operation on database.

Once you will follow this, you'd certainly be able to solve your problem by your own. :)

-KR

如果成本是约束，请考虑MySql。

If cost is a constraint, consider MySql.

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