Här är ett enkelt exempel som har butiker med produktdetaljer lagrade i xml. Pivoten finns längst ner som visar butikerna och en summa av pris per kategori A och B.
declare @test Table
(
StoreID int,
ProdXml xml
)
insert into @test
select 1, '<product cat="A" name="foo" price="10" />' union
select 2, '<product cat="A" name="bar" price="12" />' union
select 1, '<product cat="B" name="blah" price="35" />' union
select 2, '<product cat="B" name="bap" price="67" />' union
select 1, '<product cat="C" name="bip" price="18" />' union
select 2, '<product cat="A" name="bing" price="88" />' union
select 1, '<product cat="B" name="bang" price="34" />' union
select 2, '<product cat="B" name="boom" price="65" />'
--Pivot showing sum of price by Cat
select StoreID, A, B
from
(
select StoreID,
ProdXml.value('/product[1]/@cat[1]','varchar(20)') as [ProdCat],
ProdXml.value('/product[1]/@price[1]','int') as [ProdPrice]
from
@test
) up
PIVOT (SUM([ProdPrice]) FOR [ProdCat] IN ( A, B)) as pvt
ORDER BY StoreID