In regards to databases, what are business rules?

Answer 1

Business rules is programming logic that reflects how a business operates. For instance, a business could have a minimum limit on the amount of a purchase order before they offer a 10% discount. That is a business rule that an application dealing with purchase orders will need in code for the application to function correctly in the business.

In terms of databases, business rules enforce data constraints like - always having a postcode for every customer. Always having a customer accept their terms of service before they can complete a purchase. Always follow up with the customer 3 months after their order to make sure their purchase is working well.

These business rules impose data constraints that a database needs to manage, or an application using that data needs to validate and follow.

Answer 2

A business rule is a statement about the way a business works. It can be anything about the business that can be stated in terms of "if this then that." For instance, a business rule in a bank might be: if a withdrawal request comes in the mail, and it has no signature, then you must send it back.

The database might implement this rule by scanning records of withdrawals and marking a yes-no "rejected" field as "yes" if the yes-no "signature" field is "no".

Answer 3

I do not understand what you are asking.