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Questions and Answers
What is the three-schema DBMS architecture designed to achieve?
What is the three-schema DBMS architecture designed to achieve?
- Real-time data processing
- Efficient data retrieval
- Data independence and abstraction (correct)
- Optimal data storage
What is the main focus of Chapter 3 in the database systems lecture?
What is the main focus of Chapter 3 in the database systems lecture?
- Basic SQL
- Relational algebra
- Relational data model and constraints
- Data modeling using the Entity-Relationship (ER) model (correct)
Which chapter in the lecture discusses the concepts of data models, schemas, and instances?
Which chapter in the lecture discusses the concepts of data models, schemas, and instances?
- Chapter 6
- Chapter 5
- Chapter 2 (correct)
- Chapter 8
What does the term 'data independence' refer to in the context of database systems?
What does the term 'data independence' refer to in the context of database systems?
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What is the main topic covered in Chapter 8 of the database systems lecture?
What is the main topic covered in Chapter 8 of the database systems lecture?
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