Choosing good primary keys, candidate keys and the foreign keys that use them is a vitally important database design task — as much art as science. The design task has very specific design criteria.
What are the criteria?
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Choosing good primary keys, candidate keys and the foreign keys that use them is a vitally important database design task — as much art as science. The design task has very specific design criteria.
What are the criteria?
The criteria for consideration of a primary key are: