Exam 11: Databases

How does a relational database differ from a hierarchical database?

The analysis tools associated with the data manipulation subsystem that support querying databases include ________ and structured query languages (SQL).

Describe the structure and functionality of a hierarchical database.

In ________,data from transactions are collected over time and then processed all at once.

A(n)________ is a group of related characters.

In the object-oriented database model,this term is the equivalent to a field in a relational model.

A collection of related fields such as a person's name,address,and age.

A record is a collection of related tables.

In a network database,a node may be reached through more than one path with the help of ________.

Which of the following is not an advantage of using a database?

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

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

Typically,one of the duties of a database administrator is to interact with the data administration subsystem.

Differentiate between the individual database and the company database.

Relational database tables require a common data item.

In a(n)________ database,a node may be reached through more than one path with the help of pointers.

The duties of a database administrator include determining which people have access to what kinds of data in the database; these are referred to as ________ rights.

These databases store not only data but also instructions to manipulate the data.

The logical arrangement of data in a database is called the database model.

In a distributed database,all the data must be physically located in one place.