While attending college, you accept an IT internship at a local charity. The charity needs to report on data that is related and exists in two tables.
You need to establish a relationship between the data that is in the two tables.
Which constraint should you define?
A. Foreign key
B. Index key
C. Link key
D. Default key
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Answer is A not B. An Index is not even a Constraint and certainly does not create a relationship between 2 tables!