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12 questions from this quiz
To model relational database structure
It uniquely identifies each record
To link to the primary key of another table
Secondary keys are not necessarily unique
Each record links to only one record
One-to-many (1:M)
Creating a junction table
For many-to-many relationships
A combination of multiple fields
Rectangles
1:1 and 1:M relationships
Confusing 1:M and M:M relationships
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