This document describes the Astronomical Data Query Language (ADQL). ADQL has been developed based on SQL92. This document describes the subset of the SQL grammar supported by ADQL. Special restrictions and extensions to SQL92 have been defined in order to support generic and astronomy specific operations.
Cite
@article{arxiv.1110.0503,
title = {IVOA Recommendation: IVOA Astronomical Data Query Language Version 2.00},
author = {Inaki Ortiz and Jeff Lusted and Pat Dowler and Alexander Szalay and Yuji Shirasaki and Maria A. Nieto-Santisteban and Masatoshi Ohishi and William O'Mullane and Pedro Osuna and the VOQL-TEG Working Group and the VOQL Working Group},
journal= {arXiv preprint arXiv:1110.0503},
year = {2019}
}