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What important factors one should consider when choosing and entering data to a primary key in Access?
Wiki User
∙ 10y ago
The primary key has to be unique. It cannot be left blank. It is good if it gives you more information rather than it just being a way of uniquely identifying a record. A code number could have part of it representing something. Car registration numbers can be used as primary key in a database. As well as uniquely identifying each car, they often identify the year of the car and where it is from in a country. So they have other purposes. The key should be easy to generate, like having a system that determines what the next key should be. If possible it should be a single field. These are some of the important thing to consider.
Wiki User
∙ 10y ago
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