Level 5 Level 7
Level 6

2.5 Data types

13 words 0 ignored

Ready to learn       Ready to review

Ignore words

Check the boxes below to ignore/unignore words, then click save at the bottom. Ignored words will never appear in any learning session.

All None

A whole database
A single row of data, all of the data for one person/thing
A single cell of data
The unique identifier
Key field
When two tables are connected
Relational tables
The connection between two tables
A unique identifier
Primary key
A foreign key is used to link tables together and create a relationship
Foreign key
A database which comprises of only one table
Flat file
Analogue is used to describe something that changes value smoothly
Analogue data
The sound waves that your mouth produces when you speak are analogue
Analogue example
Digital describes something that changes in steps. Everything stored and processed inside a computer is a number (digital).
Digital data
Binary means the data has only two values: 0 and 1
Digital example