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12 cards from this deck
Stores & provides access to related data points
Unique identifier for each record in a database table
Must be unique for each row in the table
Cannot contain null values
Should not change over time
Primary key consisting of multiple columns combined
ID column (unique for each student)
Multiple people may have the same name
Column(s) linking two tables by referencing primary key
Primary key in another table
Exam ID refs Grade Table primary key
Yes, primary key can also be a foreign key
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