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SDINIC89 SDINIC89
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6 years ago
What is the purpose of a primary key?
 
  What will be an ideal response?
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6 years ago
A primary key uniquely identifies a record. Each record represents a single person, place, thing, or event. The primary key identifies which person, place, thing, or event it is. It also speeds access to your data and is used to form relationships.
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