What does the cardinality ratio specify, Database Management System

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What does the cardinality ratio specify?

Mapping cardinalities or cardinality ratios state the number of entities to which another entity can be associated. Mapping cardinalities must be one of the following:

 One to one

One to many

Many to one

 Many to many

 


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What does the cardinality ratio specify? Mapping cardinalities or cardinality ratios state the number of entities to which another entity can be associated. Mapping cardinaliti

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