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Query languages or data query languages (DQLs) are computer languages used to make queries in databases and information systems.



Broadly, query languages can be classified according to whether they are database query languages or information retrieval query languages. The difference is that a database query language attempts to give factual answers to factual questions, while an information retrieval query language attempts to find documents containing information that is relevant to an area of inquiry.


Examples include:

See alsoEdit


  1. ^ "FQL Overview". Facebook Developers. 
  2. ^[permanent dead link]
  3. ^ "Search operators". Google. Retrieved August 22, 2015. 
  4. ^ "Bing Query Language". Microsoft. Retrieved August 22, 2015.