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Meaning of RELATIONAL LANGUAGE

 
Computing Dictionary
 
 Definition: 

Relational languages specify output in terms of some property and some arguments. For example, if Tom has two brothers, Dick and Harry, a relational language will respond to the query "Who is Tom's brother?" with either Dick or Harry. Notice that unlike functional languages, relational languages do not require a unique output for each predicate/argument pair. prolog is the best known relational language.

 

 

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