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Primary key

In database design, a primary key is a value that can be used to look up a particular row in a table. Examples are names in a telephone book (to look up telephone numbers), words in a dictionary (to look up definitions), and Dewey Decimal Numbers (to look up books in a library).



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Shoreham, New York

... with no husband present, and 13.1% are non-families. 11.0% of all households are made up of individuals and 6.9% have someone living alone who is 65 years of age or ...

 
 
 
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