Data Query Language

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

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

Examples include:

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. ^ "FQL Overview". Facebook Developers. Archived from the original on 2013-12-18. Retrieved .
  3. ^ http://gellish.wiki.sourceforge.net/Querying+a+Gellish+English+database[permanent dead link]
  4. ^ "Search operators". Google. Retrieved 2015.
  5. ^ "Bing Query Language". Microsoft. Retrieved 2015.

  This article uses material from the Wikipedia page available here. It is released under the Creative Commons Attribution-Share-Alike License 3.0.

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