Question

a primary key consists of how many fields?​

Answer 1

Answer:

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Explanation:

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Answer 2

Answer:

A table can have only one primary key, which may consist of single or multiple fields. When multiple fields are used as a primary key, they are called a composite key. If a table has a primary key defined on any field(s), then you cannot have two records having the same value of that field(s).

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