In creating a database, a system analyst creates several entities and for each of the entity creates a list of attributes.For each attribute, the system analyst is given certain constraints as to the valid values that can be used.What is the term used to refer to these constraints?
A)restrictions
B)domains
C)exceptions
D)lists

Question

Quizplus · Accepted Answer

The term used to refer to these constraints is "domains". A domain is the set of all possible valid values for a particular attribute in a database. The system analyst sets these domains as constraints to ensure that only valid and appropriate values are stored in the database.

In Creating a Database, a System Analyst Creates Several Entities