15 Questions
What is the main task of a modern database system?
To manage a large, complex collection of data
What is the set of allowed values for each attribute called in a database system?
Domain of the attribute
What is the special value 'null' in a database system used to indicate?
The value is 'unknown'
What does ER model stand for in the context of database systems?
Entity-Relationship model
What kind of design does ER modeling develop for a database?
Conceptual design
In the context of database systems, what is the main purpose of the ER model?
To develop a conceptual design for the database
What does the term 'domain' refer to in a database system?
The set of allowed values for each attribute
What is the primary challenge posed by the special value 'null' in a database system?
It causes complications in the definition of many operations
What is the key characteristic of attribute values in a database system?
They are required to be atomic; that is, indivisible
What task does a modern database system primarily perform?
Manage a large, complex collection of data
What is the primary purpose of a database system?
To manage a large, complex collection of data
In the context of database systems, what does DBMS stand for?
Database Management System
What does ER model stand for in the context of database systems?
Entity-Relationship Model
What is the key characteristic of attribute values in a database system?
Set of allowed values for each attribute
What task does a modern database system primarily perform?
Managing a large, complex collection of data
Test your knowledge about the basics of Database Management Systems (DBMS). Learn about the purpose, components, and characteristics of modern database systems.
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