Editing Query language (section)

==Examples==

* [[Attempto Controlled English]] is a query language that is also a [[controlled natural language]].<ref name="FLAIRS 2006">{{cite conference |author1=Norbert E. Fuchs |author2=Kaarel Kaljurand |author3=Gerold Schneider | title = Attempto Controlled English Meets the Challenges of Knowledge Representation, Reasoning, Interoperability and User Interfaces | book-title = FLAIRS 2006 | date = 2006 | url = http://attempto.ifi.uzh.ch/site/publications/papers/FLAIRS0601FuchsN.pdf }}</ref>
* [[AQL (ArangoDB Query Language)|AQL]] is a query language for the [[ArangoDB]] native multi-model database system.
* [[.QL]] is a proprietary object-oriented query language for querying [[relational database]]s; successor of Datalog;
* [[CodeQL]] is the analysis engine used by developers to automate security checks, and by security researchers to perform variant analysis on [[GitHub]].
* [[Contextual Query Language]] (CQL) a formal language for representing queries to [[information retrieval]] systems such as web indexes or bibliographic catalogues.
* [[Cypher Query Language|Cypher]] is a query language for the [[Neo4j]] graph database;
* [[Data Mining Extensions|DMX]] is a query language for [[data mining]] models;
* [[Datalog]] is a query language for [[deductive database]]s;
* [[F-logic]] is a declarative object-oriented language for [[deductive database]]s and [[knowledge representation]].
* [[Facebook Query Language|FQL]] enables you to use a [[SQL]]-style interface to query the data exposed by the [[Graph API]]. It provides advanced features not available in the [[Graph API]].<ref>{{cite web|url=https://developers.facebook.com/docs/technical-guides/fql/|title=FQL Overview|work=Facebook Developers|access-date=2013-12-11|archive-url=https://web.archive.org/web/20131218130320/https://developers.facebook.com/docs/technical-guides/fql/|archive-date=2013-12-18|url-status=dead}}</ref>
* [[Gellish English]] is a language that can be used for queries in Gellish English Databases, for dialogues (requests and responses) as well as for information modeling and [[knowledge modeling]];<ref>http://gellish.wiki.sourceforge.net/Querying+a+Gellish+English+database{{dead link|date=July 2016 |bot=InternetArchiveBot |fix-attempted=yes }}</ref>
* [[Gremlin (programming language)|Gremlin]] is an [[Apache Software Foundation]] graph traversal language for OLTP and OLAP graph systems.
* [[GraphQL]] is a data query language developed by [[Facebook]] as an alternate to [[REST]] and ad-hoc [[webservice]] architectures.
* [[HTSQL]] is a query language that translates [[HTTP]] queries to [[SQL]];
* [[ISBL]] is a query language for [[PRTV]], one of the earliest relational database management systems;
* [[Jaql]] is a functional data processing and query language most commonly used for JSON query processing;
* [[Jq (programming language)|jq]] is a functional programming language often used for processing queries against one or more [[JSON]] documents, including very large ones;
* [[JSONiq]] is a declarative query language designed for collections of [[JSON]] documents;
* [[LDAP]] is an [[application protocol]] for querying and modifying [[directory services]] running over [[TCP/IP]];
* LogiQL is a variant of Datalog and is the query language for [[LogicBlox|the LogicBlox system]].
* [[M Formula language]], a [[Mashup (web application hybrid)|mashup]] query language used in Microsoft's Power Query
* [[Molecular Query Language|MQL]] is a [[cheminformatics]] query language for a [[substructure search]] allowing beside nominal properties also numerical properties;
* [[MultiDimensional eXpressions|MDX]] is a query language for [[OLAP]] databases;
* [[N1QL]] is a [[Couchbase, Inc.|Couchbase]]'s query language finding data in [[Couchbase Server]]s;
* [[Object Query Language]]
* [[Object Constraint Language|OCL]] (Object Constraint Language). Despite its name, OCL is also an object query language and an [[Object Management Group|OMG]] standard;
* [[OPath]], intended for use in querying [[WinFS]] ''Stores'';
* [[Poliqarp Query Language]] is a special query language designed to analyze annotated text. Used in the [[Poliqarp]] search engine;
* PQL is a [[special-purpose programming language]] for managing [[process model]]s based on information about [[wiktionary:Scenario|scenarios]] that these models describe;
* [[PRQL]] [https://prql-lang.org/ PRQL] (Pipelined Relational Query Language) is a modern language for transforming data. Consists of a curated set of orthogonal transformations, which are combined together to form a pipeline.
* [[PTQL]] based on relational queries over program traces, allowing programmers to write expressive, declarative queries about program behavior.
* [[QUEL query languages|QUEL]] is a [[relational database]] access language, similar in most ways to [[SQL]];
* [[RDQL]] is a [[Resource Description Framework|RDF]] query language;
* [[Smiles arbitrary target specification|SMARTS]] is the [[cheminformatics]] standard for a [[substructure search]];
* [[SPARQL]] is a query language for [[Resource Description Framework|RDF]] [[Graph (discrete mathematics)|graphs]];
* [[SQL]] is a well known query language and [[data manipulation language]] for [[relational database]]s;
* [[XQuery]] is a query language for [[XML database|XML data sources]];
* [[XPath]] is a declarative language for navigating XML documents;
* [[Yahoo! Query Language|YQL]] is an [[SQL]]-like query language created by [[Yahoo!]]
* Search engine query languages, e.g., as used by [[Google Search|Google]]<ref>
{{cite web
| title = Search operators
| url = https://support.google.com/websearch/answer/2466433?hl=en
| access-date = August 22, 2015
| publisher = Google Inc.
}}</ref> or [[Bing (search engine)|Bing]]<ref>
{{cite web
| title = Bing Query Language
| date = 22 June 2010
| url = https://msdn.microsoft.com/en-us/library/ff795667.aspx
| access-date = August 22, 2015
| publisher = Microsoft
}}</ref>