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IVOA Astronomical Data Query Language
Version 1.01

IVOA Working Draft 24 June 2005

Interest/Working Group:
http://www.ivoa.net/twiki/bin/view/IVOA/IvoaVOQL
Author(s):
IVOA VOQL Working group
Editor(s):
Masatoshi Ohishi, Alex Szalay

Abstract

This document describes the Astronomical Data Query Language (ADQL) and its two representations as String (ADQL/s) and XML (ADQL/x). ADQL has been developed based on SQL92. This document describes the SQL92 grammar, as well as the restrictions and extensions to SQL92 necessary to support astronomy specific operands such as Region and XMATCH. The XML schema representing the grammar is placed in the IVOA XML schema area.

Status of this document

This is an IVOA Working Draft for review by IVOA members and other interested parties.
It is a draft document and may be updated, replaced, or obsoleted by other documents at any time. It is inappropriate to use IVOA Working Drafts as reference materials or to cite them as other than "work in progress".



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