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Questions and Answers
What is the primary purpose of an Entity Relationship model?
What is the primary purpose of an Entity Relationship model?
- To execute complex queries on the database
- To secure the database from unauthorized access
- To optimize the database storage
- To visually represent the data and its relationships in a database (correct)
In an Entity Relationship model, what does a 'relationship' represent?
In an Entity Relationship model, what does a 'relationship' represent?
- Data type of an attribute
- Association between two entities (correct)
- Primary key of an entity
- Physical location of data in the database
What does an 'entity' in an Entity Relationship model refer to?
What does an 'entity' in an Entity Relationship model refer to?
- A specific database query language
- A database management system
- A distinct object or concept about which data is stored (correct)
- A type of database index
