A primary key for a database table (entity) is used to distinguish each record in a table so that individual records:
A. can be manipulated; such as to update a field value in a specific record
B. can be accessed; such as to view all data attributes for a specific record
C. can't be accessed as databases don't generally work with primary keys
D. 2 of the above are correct
Answer: D. 2 of the above are correct
(A and B are correct)
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