Exam 11: Databases

The ATM works on the principle of real-time processing.

Individual databases are the foundation of management information systems.

How does a relational database differ from a hierarchical database?

This occurs when data is processed at the same time the transaction occurs.

Users of a(n) _____ database have access through their microcomputers linked to local or wide area networks.

Querying the database and generating reports is assisted by the application generation subsystem.

The analysis tools associated with the _____ subsystem include query-by-example and structured query languages (SQL).

If all the data in a database is not physically located in one place, it would be a(n)_____ database.

The logical view of data focuses on meanings and content of the data.

Object-oriented databases organize data using objects, classes, entities, attributes, and _____.

A data field that represents a description or characteristic of some entity.

A network database utilizes these special connections between nodes that allow multiple connections between records.

A commercial database is generally an enormous database that an organization develops to cover particular subjects.

In this database model, the fields or records are structured in nodes.

A hierarchical database uses many-to-many relationships.

The most basic logical element of data is a(n) _____.

In an object-oriented database, attributes are specific instances of a class that can contain both data and instructions to manipulate the data.

In a(n) _____ database, any action on one element immediately affects the elements related to it.

The database in which data elements are organized using classes, objects, attributes, and methods is called the object-oriented database.

If Mr.Smith's bike has been sent to his new address, but the bill to his old one, it can most likely be attributed to a lack of data: