Database Management Systems (DBMS)
Which statement correctly explains Entity-Relationship (ER) diagram?
- A. A diagram that visually represents entities and their relationships within a database. ✓
- B. A minimal set of attributes that can uniquely identify a record in a table.
- C. The process of intentionally introducing redundancy into a database to improve read performance.
- D. A virtual table based on the result of a stored SQL query.
Correct answer
A. A diagram that visually represents entities and their relationships within a database.
Explanation
Entity-Relationship (ER) diagram refers to a diagram that visually represents entities and their relationships within a database.