Data query language: Difference between revisions

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Latest revision as of 23:36, 31 May 2025

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{{Short description|Syntax used to query databases}}

{{Distinguish|Query language}}

{{NR|date=June 2023|find="Data query language"}}

'''Data query language''' ('''DQL''') is part of the base grouping of [[SQL]] sub-languages. These sub-languages are mainly categorized into four categories: a data query language (DQL), a [[data definition language]] (DDL), a [[data control language]] (DCL), and a [[data manipulation language]] (DML). Sometimes a transaction control language (TCL) is argued to be part of the sub-language set as well.

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Although often considered part of DML, the SQL [[Select (SQL)|SELECT]] statement is strictly speaking an example of DQL. When adding FROM or WHERE data manipulators to the SELECT statement the statement is then considered part of the DML.

==Related languageslanguage types==

* [[Data definition language]]

* [[Data manipulation language]]

* [[Data control language]]

* [[Transactional Controlcontrol Languagelanguage]]

==References==

{{Reflist}}

{{Database}}

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[[Category:Data modeling]]

[[Category:SQL]]

[[Category:Database management systems]]