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paper

IVOA Recommendation: IVOA Astronomical Data Query Language Version 2.00

arXiv:1110.0503 · doi:10.5479/ADS/bib/2008ivoa.spec.1030O

Abstract

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.