ADQL(ID:8301/)

ADQL example
An SQL like string for ADQL might be as follows :
Select a.* from Tab a where Region('Circle Cartesian 1.2 2.4 3.6 0.2')
This would be represented in xml as follows
<?xml version=&quot"1.0&quot" encoding=&quot"utf-16&quot"?>
<Select xmlns:xsd=&quot"http://www.w3.org/2001/XMLSchema&quot" xmlns:xsi=&quot"http://www.w3.org/2001/XMLSchema-instance&quot" xmlns=&quot"http://www.ivoa.net/xml/ADQL/v0.7.4&quot">
<SelectionList>
<Item xsi:type=&quot"columnReferenceType&quot" Table=&quot"a&quot" Name=&quot"*&quot" />
</SelectionList>
<From>
<Table xsi:type=&quot"tableType&quot" Name=&quot"Tab&quot" Alias=&quot"a&quot" />
</From>
<Where>
<Condition xsi:type=&quot"regionSearchType&quot">
<Region xmlns:q1=&quot"urn:nvo-region&quot" xsi:type=&quot"q1:circleType&quot" coord_system_id=&quot"&quot">
<q1:Center ID=&quot"&quot" coord_system_id=&quot"&quot">
<Pos3Vector xmlns=&quot"urn:nvo-coords&quot">
<Name>X Y Z</Name>
<CoordValue>
<Value>
<double>1.2</double>
<double>2.4</double>
<double>3.6</double>
</Value>
</CoordValue>
</Pos3Vector>
</q1:Center>
<q1:Radius>0.2</q1:Radius>
</Region>
</Condition>
</Where>
</Select>
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Example