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Difference Between Primary Key And Surrogate Key (edit)
Revision as of 14:10, 1 April 2015
, 14:10, 1 April 2015no edit summary
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'''Primary Key''' | '''Surrogate Key''' Primary Key is a constraint that ensures that the column or set of columns so designated should not have duplicate or null values . | Surrogate Key is a column or set of colums that can be declared as primary key instead of a natural or real key.
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