What are business keys?

What is business key example?

For example business keys are customer code in a customer table, composite of sales order header number and sales order item line number within a sales order details table.

What is a business key vs primary key?

These are two different kinds of keys. The counter is a surrogate key, and the "business key" is a natural key. All tables in a relational database should (not will, just should) have a declared primary key (PK). This key is a column or group of columns that will uniquely identify a row in the table.

What is a business key in datawarehouse?

Each dimension table consist of its business key attribute, the one that uniquely identifies a row in the table. The business key is the attribute that is known in the operational system by the business users.

What is the difference between a surrogate key and a business key?

Every row would have both a business key and a surrogate key. The surrogate key identifies one unique row in the database, the business key identifies one unique entity of the modeled world.