Astronomical Data Query Language
The 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.
The current IVOA Recommendation is ADQL-2.0
(30 October 2008).
page collects proposed features and notes while developing the next revision of the specification.
keeps track of the Errata status for this specific version of the recommendation.
ADQL-2.1 Working draft
specification is based on the ivoatex environment.
The source code for the document can be found online in the volute
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