brianamorales2619 brianamorales2619
  • 03-10-2019
  • Computers and Technology
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Define the term unique key and give an example.

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Cetacea
Cetacea Cetacea
  • 04-10-2019

Answer: Unique is used for the prevention of any field or column to have same or identical values in a particular table.It however, does let the null value top enter the table even though stops entry of duplicate values.

Example- In any particular record of shop, the shopkeeper avoids to have a product that is of the same price as to maintain the clarity of the table .

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