8. Many-to-many relationships
Example of a many-to-many relationship
Think about videos in a video hire shop and the shop's customers.
A video can be hired by many customers
Customers can hire many videos
this would be known as a 'many-to-many relationship'
This relationship can be portrayed diagramatically as:
When designing database relationships, many-to-many relationships are not a good idea.
Challenge see if you can find out one extra fact on this topic that we haven't already told you
Click on this link: Many-to-many relationship
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