Which of the following fields will not make a suitable primary key? (a) A customer’s account number
Which of the following fields will not make a suitable primary key?
(a) A customer’s account number
(b) A date field
(c) An auto number field
(d) A student’s admission number
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(b) From the given options, the data field can not be set as a primary key because it can’t be fixed for an object.
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