A tool that database designers use to show the logical relationships among data is a(n) _____.
A) data model
B) entity-relationship diagram
C) relational model
D) all of the above

Question

Quizplus · Accepted Answer

A data model is a graphical representation of the logical relationships among data. An entity-relationship diagram (ERD) is a type of data model that uses symbols to represent entities and their relationships. A relational model is a type of data model that uses tables to represent data. All of these tools are used by database designers to show the logical relationships among data.

A Tool That Database Designers Use to Show the Logical