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A database could be made of all the planets showing their size, their distance from the Sun and much, much more!

Databases

This Computer Science quiz is called 'Databases' and it has been written by teachers to help you if you are studying the subject at middle school. Playing educational quizzes is a fabulous way to learn if you are in the 6th, 7th or 8th grade - aged 11 to 14.

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Databases are storage systems which allow you to store and organize vast quantities of information or data. They can be very useful tools in all sorts of different situations. A historian might use one to list all of the monarchs of England for example, and input the length of their reign, their date of birth, how many children they had or any other piece of statistical information he wanted to add. He could then order the list in several different ways, for example alphabetically, by age or by year of birth. Databases are organized in a way that makes them easy to search for the information they hold.

1 .

Which of the following types of information could you store in a database?

Information about different products, including descriptions and prices

Information about all of the pupils in a school, including name, date of birth and address

Information about different countries, including population, climate and language

All of the above

Data could be any kind of information you want to keep a record of

2 .

In a database about planets, all of the information about Mars would be held on what?

A field

A report

A record

A graph

A record holds all of the information about one person, place or object. On a planet database, all of the information about Mars would be held on one record, while all of the information about Venus would be held on another record

3 .

Each record on a database has several different what?

Different fields

Different yards

Different graphs

Different coordinates

A field contains only one piece of information. A record on a planet database might have several fields: size, distance from the sun, time taken to orbit, number of moons, etc

4 .

What is a database search called?

A quest

A query

An inquest

An answer

A database "query" is a "question" that you ask the database

5 .

Imagine an animal database in which each record has these fields: number of legs, habitat, lifespan, diet. Which of the following pieces of information could NOT be found out from the database?

Whether the animal is a reptile

Whether the animal inhabits grassland

Whether the animal eats mice

Whether the animal has four legs

The database would need an additional field for class (i.e. reptile, mammal, bird, amphibian, fish, etc.) before it could tell you the answer

6 .

Which database might you use to help you find your next library book?

An encyclopedia

A journal

A magazine

A catalog

A catalog is a complete list of items, for example all of the books owned by a library

7 .

Which fields would you expect to find in a database of library books?

Author, title, whether your best friend liked the book

Author, title, color of cover, book condition, how long it will take to read

Author, title, genre, number of pages, location

Author and title only

Besides including information on author, title, genre and number of pages, one of the most important pieces of information is location - this helps you find the book you choose! The database would also be able to tell you if the book was currently available or out on loan

8 .

If you had a database for the children in your class and you wanted to organize the list of children by date of birth, you would instruct the database to do what?

Sort

Randomize

Alphabetize

Save

A database can be sorted alphabetically or numerically by ascending or descending order

9 .

A planet database could be organized in which of the following ways?

By distance from the sun, in ascending numerical order

By distance from the sun, in alphabetical order

By time taken to orbit, in alphabetical order

All of the above

A list of planets could be sorted alphabetically OR by distance from the sun, but not both at the same time (this applies to the time taken to orbit, as well)

10 .

What is another name for the information held in a database?

Data

Snippets

Fun facts

A database holds ... data!

Author: Sheri Smith