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DATABASE TERMS Mr. Brunton

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Page 1: DATABASE TERMS Mr. Brunton. Database  What is a database?  A collection of information organized in such a way that a computer program can quickly select

DATABASE TERMS

Mr. Brunton

Page 2: DATABASE TERMS Mr. Brunton. Database  What is a database?  A collection of information organized in such a way that a computer program can quickly select

Database

What is a database? A collection of information organized in such a

way that a computer program can quickly select desired pieces of data. You can think of a database as an electronic filing system.

Why do we use databases? Databases are used to store, organize, and

retrieve large amounts of data, quickly.  Therefore, databases can be used in any situation where data needs to be found quickly.

Microsoft Access is a database editing software

Page 3: DATABASE TERMS Mr. Brunton. Database  What is a database?  A collection of information organized in such a way that a computer program can quickly select

Database examples

Phone book Student records Employee records Driver’s License

information, Health (Card) information)

Bank account information

ITunes / Music database Online stores (ie: Sears,

E-Bay, Trader.ca, etc.) Sports / News (ie:

NHL.com, TSN.ca)

Page 4: DATABASE TERMS Mr. Brunton. Database  What is a database?  A collection of information organized in such a way that a computer program can quickly select

Table

a set of related data arranged in rows and columns

Page 5: DATABASE TERMS Mr. Brunton. Database  What is a database?  A collection of information organized in such a way that a computer program can quickly select

Field

Relates to a column in a database table

Contains all the information about one type of data (like names, address, etc.)

Page 6: DATABASE TERMS Mr. Brunton. Database  What is a database?  A collection of information organized in such a way that a computer program can quickly select

Field properties

Properties, such as length, datatype, etc. that the database designer can set in order to control data

Page 7: DATABASE TERMS Mr. Brunton. Database  What is a database?  A collection of information organized in such a way that a computer program can quickly select

Datatypes

Text, Memo, Number, Date/Time, Currency, AutoNumber, Yes/No, Lookup wizard

Page 8: DATABASE TERMS Mr. Brunton. Database  What is a database?  A collection of information organized in such a way that a computer program can quickly select

Text

Datatype used to store any characters.

Limited to 256 characters

Ex: name, address

Page 9: DATABASE TERMS Mr. Brunton. Database  What is a database?  A collection of information organized in such a way that a computer program can quickly select

Memo

Like the text datatype, memo is used to store any characters ….

However it is unlimited in size.

Ex: customer comments, comments on report cards

Page 10: DATABASE TERMS Mr. Brunton. Database  What is a database?  A collection of information organized in such a way that a computer program can quickly select

Number

Datatype used to store values of numerical value

Short integers, long integers, etc. have different value maximums … check field properties for more details

Ex: age, population

Page 11: DATABASE TERMS Mr. Brunton. Database  What is a database?  A collection of information organized in such a way that a computer program can quickly select

Date / time

Datatype used to store dates and times

Can be shown in many different ways (full date, short date, times, etc.)

Ex: date of birth

Page 12: DATABASE TERMS Mr. Brunton. Database  What is a database?  A collection of information organized in such a way that a computer program can quickly select

Currency

Numerical datatype used to store money values

Ex: amount owing

Page 13: DATABASE TERMS Mr. Brunton. Database  What is a database?  A collection of information organized in such a way that a computer program can quickly select

Autonumber

Numerical value that is automatically created by Access

Often used a unique identifier (primary key)

Ex: student number, credit card number

Page 14: DATABASE TERMS Mr. Brunton. Database  What is a database?  A collection of information organized in such a way that a computer program can quickly select

Yes / no

Datatype used to store a yes or no value

Ex: paid in full?

Page 15: DATABASE TERMS Mr. Brunton. Database  What is a database?  A collection of information organized in such a way that a computer program can quickly select

Lookup

A property under most datatypes that allows you create a list of values for a user to choose from

Ex: salutation

Page 16: DATABASE TERMS Mr. Brunton. Database  What is a database?  A collection of information organized in such a way that a computer program can quickly select

Primary key

Datatype property that requires each record in a table to be unique

Used to ensure that no two records are the same

Ex: social insurance number

Page 17: DATABASE TERMS Mr. Brunton. Database  What is a database?  A collection of information organized in such a way that a computer program can quickly select

Record

Relates to a row in a database table

Contains all of the data related to one person or item

Ex: name, address, marks, etc about one student

Page 18: DATABASE TERMS Mr. Brunton. Database  What is a database?  A collection of information organized in such a way that a computer program can quickly select

Form

Part of a database that allows a user to enter and edit data in a graphical interface

Page 19: DATABASE TERMS Mr. Brunton. Database  What is a database?  A collection of information organized in such a way that a computer program can quickly select

Query

Asking the database question to find a certain set of data

Ex: finding all students who are failing

Page 20: DATABASE TERMS Mr. Brunton. Database  What is a database?  A collection of information organized in such a way that a computer program can quickly select

Sort

Ordering data in alphanumerical order

Page 21: DATABASE TERMS Mr. Brunton. Database  What is a database?  A collection of information organized in such a way that a computer program can quickly select

Report

Creating a printable report of a database table or query

Page 22: DATABASE TERMS Mr. Brunton. Database  What is a database?  A collection of information organized in such a way that a computer program can quickly select

Datasheet view

View for entering and editing data

Page 23: DATABASE TERMS Mr. Brunton. Database  What is a database?  A collection of information organized in such a way that a computer program can quickly select

Design view

View that allows the database designer to edit field properties, query properties, etc.