Database Table Columns Quiz

Why were basic relational systems not very suitable for some applications?

Need for more complex data structures

What new data types were needed in addition to numeric and character string types?

Array and struct types

Which of the following was NOT a reason why basic relational systems were not suitable for many applications?

Need for new storage and indexing structures

What led DBMS developers to add functionality to their systems?

Increased requirements from application domains Signup and view all the answers

What kind of functionality was incorporated by DBMS developers from object-oriented databases into relational systems?

General purpose functionality Signup and view all the answers

What does a DBMS security and authorization subsystem do?

Enforce account restrictions automatically. Signup and view all the answers

Why is it important for a DBMS to control access operations like retrieval or update?

To protect the integrity of the data and prevent unauthorized actions. Signup and view all the answers

What is one of the main reasons for using object-oriented database systems?

To provide persistent storage for program objects and data structures. Signup and view all the answers

How can a DBMS control who uses privileged software like account creation tools?

By restricting access only to the system administrator. Signup and view all the answers

In what way do programming languages like Pascal, C++, and Java benefit from object-oriented database systems?

By providing persistent storage for program objects and data structures. Signup and view all the answers

Why should only authorized personnel be allowed to access privileged software tools in a DBMS?

To ensure that sensitive operations are performed by trusted individuals. Signup and view all the answers

What is the advantage of using a DBMS environment when adding new data items to records?

Only the record descriptions in the catalog need to be updated, with no need to change programs Signup and view all the answers

Which type of database systems allow users to define operations on data as part of the database definitions?

Object-oriented and object-relational systems Signup and view all the answers

How can a file access program written for specific record structures handle the addition of new data items to records?

It will no longer function correctly and must be changed Signup and view all the answers

What is the purpose of the COURSE table in the described database structure?

To list course names and numbers Signup and view all the answers

In a DBMS environment, what happens when the description of records in the catalog is changed?

Programs referencing the old catalog descriptions stop working Signup and view all the answers

What is an enumerated type in the context of the described database structure?

A type that can have multiple predefined values Signup and view all the answers