SQL如何循环节点 读取 xml

[ccp5780199]

一个XML文件
<Buy BuyTime="2007-2-18">
<BuyDetail BuyDetailID=1 BuyDetailName="物品1" />
<BuyDetail BuyDetailID=2 BuyDetailName="物品1" />
</Buy>

请问如何实现一条一条子节点遍历 Buy/BuyDetail的属性
然后逐行更新 BuyDetail表中 BuyDetailID等于XML相对应的BuyDetailID属性的记录呢?

[zhenmeiyisi]

declare @a int
declare @doc1 nvarchar(1000)
set @doc1=''
set @doc1='
<Buy BuyTime="2007-2-18">
<BuyDetail BuyDetailID="1" BuyDetailName="物品1" />
<BuyDetail BuyDetailID="2" BuyDetailName="物品1" />
</Buy>
'

exec sp_xml_preparedocument @a OUTPUT, @doc1

SELECT * into #a
FROM OPENXML (@a, 'Buy/BuyDetail',1)
WITH (BuyDetailID varchar(10),
BuyDetailName varchar(20))

-- create table BuyDetail( BuyDetailID int,BuyDetailName varchar(100))
-- insert into BuyDetail select 1,'222'
-- union all select 2,'ccc'

update BuyDetail set BuyDetailName=a.BuyDetailName from #a as a,BuyDetail as b
where a.BuyDetailID=b.BuyDetailID

drop table #a

[wh110]

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