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Query languages, data query languages or database query languages (DQLs) are computer languages used to make queries in databases and information systems. A well known example is the Structured Query Language (SQL).

Types

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

See also

References

  1. ^ Norbert E. Fuchs; Kaarel Kaljurand; Gerold Schneider (2006). "Attempto Controlled English Meets the Challenges of Knowledge Representation, Reasoning, Interoperability and User Interfaces" (PDF). FLAIRS 2006.
  2. ^ "Getting Started with Querying". IBM. Retrieved July 29, 2020.
  3. ^ ""EdgeQL documentation".
  4. ^ "FQL Overview". Facebook Developers. Archived from the original on 2013-12-18. Retrieved 2013-12-11.
  5. ^ http://gellish.wiki.sourceforge.net/Querying+a+Gellish+English+database[permanent dead link]
  6. ^ "Search operators". Google Inc. Retrieved August 22, 2015.
  7. ^ "Bing Query Language". Microsoft. Retrieved August 22, 2015.