Question

What is an 'ER Diagram' (Entity-Relationship Diagram) used for in database design?

A To show the execution plan of SQL queries
B To visually model the data entities, their attributes, and the relationships between them during database design
C To map the physical storage locations of database files
D To illustrate the network topology of the database server infrastructure so that relationships can be identified among the network components
E To document the access permissions of different database users
Practice Next

Relevant for Exams:

Hey! Ask a query