SQL XML Nested Aggregation -- MIDRANGE-L

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Hey all,

I've got to generate an XML that has nested Aggregation levels.

<Thing>
<Levels>
<Level>
<Stuff></Stuff>
<NextLevels>
<NextLevel></NextLevel>
<NextLevel></NextLevel>
</NextLevels >
</Level>
<Level>
<Stuff></Stuff>
<NextLevels>
<NextLevel></NextLevel>
<NextLevel></NextLevel>
</NextLevels >
</Level>
</Levels>
<Thing>

Something like below won't work because the syntax won't allow nested XMLAGG().

SELECT
XMLELEMENT(name "Levels",
XMLELEMENT(name "Stuff",column1),
XMLAGG(LevelsXML
XMLELEMENT(name "NextLevels",
XMLAGG(NextLevelXML)
)
)
)
FROM LevelsXML
Join NextLevelXML using(key1, key2)
GROUP BY Key1, Key2;

Does anyone have an idea of how to pull this off?

Steve Needles

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