Which is true of an autonumber key?
A)It can be used,with consecutive integer values,when no other primary key is available.
B)If a "natural" primary key,such as product code,is available,it is a better option than an autonumber primary key; it will lead to more accurate query results.
C)It is best used as a primary key in conjunction with another primary key,such as a Social Security number.
D)It has often been used in Access database tables,but it shouldn't be used in an Excel Data Model.

Question

Quizplus · Accepted Answer

Autonumber keys are often used when no natural primary key is available, as they provide unique, consecutive integer values automatically.

Which Is True of an Autonumber Key