Chapter 18.1

• ICT
• Secondary Education

Benefits of using a Relational Database

• Duplicated Data is reduced.
• Database space is not wasted
• Quicker to enter Data as there are less duplicates.
• Quicker to update Data

The main types of data found in a computer system are:

1. Boolean (True/False) - sometimes also called 'logical'
2. Text/Alphanumeric
3. Numeric (Numbers)
4. Currency (Money)
5. Percentage
6. Date/Time

1. Boolean Data