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What is the purpose of a DBMS catalog in a database system?
What is the purpose of a DBMS catalog in a database system?
- To provide a conceptual view of the database
- To manage the relationships between different entities in the database
- To store the actual data in the database
- To store the description of the database such as data structures, types, and constraints (correct)
What does program-data independence in a database system allow?
What does program-data independence in a database system allow?
- It allows programs to directly modify the database contents
- It imposes restrictions on accessing data from different programs
- It links programs to specific data structures in the database
- It enables changing data storage organization without changing the DBMS access programs (correct)
Which characteristic of a database system allows users to interact with a conceptual view of the database?
Which characteristic of a database system allows users to interact with a conceptual view of the database?
- Data Abstraction (correct)
- Insulation between programs and data
- Self-describing nature
- Meta-data storage
What is meta-data in the context of a database system?
What is meta-data in the context of a database system?
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How do some newer NOSQL systems differ in terms of meta-data handling?
How do some newer NOSQL systems differ in terms of meta-data handling?
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What does insulation between programs and data allow in a database system?
What does insulation between programs and data allow in a database system?
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In the context of a database system, what is meant by 'program-data independence'?
In the context of a database system, what is meant by 'program-data independence'?
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What is the main role of a data model in a database system?
What is the main role of a data model in a database system?
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What does 'Data Abstraction' achieve in a database system?
What does 'Data Abstraction' achieve in a database system?
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