Question

这是一个更大的存储过程的一部分，但在我开始之前，我必须先解析XML，提取属性，然后将它们插入到临时表中。然后我将使用该表稍后执行函数。

当我尝试插入临时表时，我得到“Subquery返回的值超过1”。如果我的虚拟XML包含一个节点它工作正常，但如果我添加其他节点问题出现。

完整SQL包括要测试的XML：

DECLARE @MESSAGELIST XML
    set @MESSAGELIST = 
     '<object>
        <Record FirstName = ''Red'' LastName = ''Shark'' Email = ''D@d.com'' Date = ''01/01/2001'' ></Record>
        <Record FirstName = ''Jon'' LastName = ''Slow'' Email = ''D@d.com'' Date = ''01/01/2011'' ></Record>    
        <Record FirstName = ''Tyrone'' LastName = ''Lennystar'' Email = ''D@d33.com'' Date = ''01/11/2011'' ></Record>  
      </object>'

IF (OBJECT_ID('tempdb..#NHOMessagesTemp') IS NOT NULL) 
   DROP TABLE #NHOMessagesTemp

CREATE TABLE #NHOMessagesTemp 
(
    FirstName nvarchar(50), 
    LastName nvarchar(50), 
    Email nvarchar(100), 
    MessageDate datetime
)

INSERT INTO #NHOMessagesTemp    
VALUES (
    (SELECT I.FirstName.value('@FirstName', 'nvarchar(50)') 
     FROM @MESSAGELIST.nodes('/object/Record') AS I(FirstName)),
    (SELECT I.LastName.value('@LastName', 'nvarchar(50)') 
     FROM @MESSAGELIST.nodes('/object/Record') AS I(LastName)),
    (SELECT I.Email.value('@Email', 'nvarchar(100)') 
     FROM @MESSAGELIST.nodes('/object/Record') AS I(Email)),
    (SELECT I.[Date].value('@Date', 'datetime') 
     FROM @MESSAGELIST.nodes('/object/Record') AS I([Date]))
    )

SELECT * 
FROM #NHOMessagesTemp

我确定问题出在我的

上

FROM @MESSAGELIST.nodes('/object/Record') AS...

但我不知道如何遍历XML并获取所有值。

感谢您的帮助！

Answer 1

尝试使用此代码从XML获取数据：

SELECT
    FirstName = xc.value('@FirstName', 'varchar(50)'),
    LastName = xc.value('@LastName', 'varchar(50)'),
    Email = xc.value('@Email', 'varchar(50)'),
    Date = xc.value('@Date', 'varchar(50)')
FROM
    @MESSAGELIST.nodes('/object/Record') AS XT(XC)

并将其插入临时表中，如下所示：

INSERT INTO #NHOMessagesTemp(FirstName, LastName, Email, Date)
    SELECT
        xc.value('@FirstName', 'varchar(50)'),
        xc.value('@LastName', 'varchar(50)'),
        xc.value('@Email', 'varchar(50)'),
        xc.value('@Date', 'varchar(50)')
    FROM
        @MESSAGELIST.nodes('/object/Record') AS XT(XC)

子查询使用XML插入返回多个值

1 个答案: