Astronomical Data Query LanguageThe Astronomical Data Query Language (ADQL) is the language used by the IVOA to represent astronomy queries posted to VO services. ADQL is based on the Structured Query Language, especially SQL 92; special restrictions and extensions have been defined in order to support generic and astronomy specific operations.Current recommendationThe current IVOA Recommendation is ADQL-2.0 (30 October 2008). | |||||||||||||||
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< < | ADQL-2.0-Next page collects proposed features and notes while developing the next revision of the specification. | ||||||||||||||
> > | ADQL-2.0-Next page collects proposed features and notes while developing the next revision of the specification. ADQL-2_0-Errata keeps track of the Errata status for this specific version of the recommendation. | ||||||||||||||
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< < | ADQL-2_0-Errata keeps track of the Errata status for this specific version of the recommendation. | ||||||||||||||
ADQL-2.1 Working draftCompiled PDF
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The ADQL specification is based on the ivoatex environment. The source code for the document can be found online in the volute repository. | |||||||||||||||
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Use the following command to checkout a local copy of the document source.
svn checkout https://volute.g-vo.org/viewvc/volute/trunk/projects/dal/ADQL | |||||||||||||||
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> > | BNF grammar validation effortAn effort is going on to provide a machine readable and validated [E]BNF grammar for ADQL. Decision has been taken not to issue ADQL-2.1 (as a REC) before this task is completed. To follow and contribute to this work please refer to the GitHub Lyonetia project. | ||||||||||||||
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