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Chapter 18.1
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
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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
Slide 1 - Slide
The main types of data found in a computer system are:
Boolean (True/False) - sometimes also called 'logical'
Text/Alphanumeric
Numeric (Numbers)
Currency (Money)
Percentage
Date/Time
Slide 2 - Slide
Slide 3 - Slide
Slide 4 - Slide
1. Boolean Data
Slide 5 - Slide
Slide 6 - Slide
Slide 7 - Slide
Slide 8 - Slide
Slide 9 - Slide
Slide 10 - Slide
Slide 11 - Video
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