sql server 2008中关于xml代码方面的问题

[lucy5555]

照片在上面

[lucy5555]

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代码如下：
DECLARE @xml XML
select
@xml = CAST(bulkcolumn AS XML)
FROM OPENROWSET(BULK 'E:\content.xml',SINGLE_BLOB)AS x
SELECT
x.value('@id','varchar(10)') AS id,
x.value('@article','nvarchar(max)') AS article,
x.value('@discuss','int') AS discuss,
x.value('@insertTime','datetime') AS insertTime,
x.value('@origin','nvarchar(50)') AS origin,
x.value('@person_id','nchar(10)') AS person_id,
x.value('@time','datetime') AS time,
x.value('@transmit','int') AS transmit
FROM @xml.nodes('/RECORDS/RECORD') i(x)

错误如下：
消息 9448，级别 16，状态 1，第 2 行
XML 分析: 行 3735，字符 71，格式检查: 未声明的实体

想请问下，未声明的实体是什么？x我有声明呀