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What is horizontal and vertical fragmentation? What are the types of horizontal fragmentation?

Mumbai University > Computer Engineering > Sem 6 > Dustributed Database

Marks: 10M

Year: May 2016

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Horizontal fragmentation

It refers to the division of a relation into subsets (fragments) of tuples (rows). Each fragment is stored at a different node, and each fragment has unique rows. However, the unique rows all have the same attributes (columns). In short, each fragment represents the equivalent of a SELECT …

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