有没有办法让SQL Server XML返回使用CDATA?我有SQL Server返回的XML,如下所示:
<locations>
<site id="124">
<sitename>Texas A & M</sitename>
</site>
</locations>
当我需要这个时:
<locations>
<site id="124">
<sitename><![CDATA[Texas A & M]]></sitename>
</site>
</locations>
答案 0 :(得分:15)
查看FOR XML EXPLICIT(参数指令)的选项。它提供了更大程度的控制,您还可以指定CDATA。这是a good tutorial。
从该教程中添加了代码:
declare @agent table
(
AgentID int,
Fname varchar(5),
SSN varchar(11)
)
insert into @agent
select 1, 'Vimal', '123-23-4521' union all
select 2, 'Jacob', '321-52-4562' union all
select 3, 'Tom', '252-52-4563'
SELECT
1 AS Tag,
NULL AS Parent,
NULL AS 'Agents!1!',
NULL AS 'Agent!2!AgentID',
NULL AS 'Agent!2!Fname!Element',
NULL AS 'Agent!2!SSN!cdata'
UNION ALL
SELECT
2 AS Tag,
1 AS Parent,
NULL,
AgentID,
Fname,
SSN
FROM @agent
FOR XML EXPLICIT
答案 1 :(得分:0)
正如乔尔在上面的评论中提到的那样,这两种形式应该完全相同。但是,如果确实需要CDATA表格,那么你可以编写一个后处理器,它将第一个表格作为输入,并使用CDATA输出第二个表格。
执行此操作时,后处理器将以第一种形式取消编码 XML转义数据,并使用CDATA兼容方法对其进行重新编码。有关CDATA转义的注意事项,请参阅问题Is there a way to escape a CDATA end token in xml?。
答案 2 :(得分:0)
以下是我获取CDATA的一个例子:
DECLARE @GlobalDateFormat varchar(32)
SET @GlobalDateFormat = 'MM/dd/yyyy hh:mm tt'
DECLARE @xml XML
SET @xml =
(
SELECT
SegmentId = ISNULL(SegmentId,0)
, DocumentId = ISNULL(DocumentId,0)
, Title = CAST(Core.dbo.fCharFormat('xmlCDATA',Title,DEFAULT,'') AS xml)
, DocumentShortName = CAST(Core.dbo.fCharFormat('xmlCDATA',DocumentShortName,DEFAULT,'') AS xml)
, [FileName] = CAST(Core.dbo.fCharFormat('xmlCDATA',[FileName],DEFAULT,'') AS xml)
, [Path] = CAST(Core.dbo.fCharFormat('xmlCDATA',[Path],DEFAULT,'') AS xml)
, CreateDate = ISNULL(Core.dbo.fDateFormat(@GlobalDateFormat,CreateDate),Core.dbo.fDateFormat(@GlobalDateFormat,GETDATE()))
, ModificationDate = ISNULL(Core.dbo.fDateFormat(@GlobalDateFormat,ModificationDate),Core.dbo.fDateFormat(@GlobalDateFormat,GETDATE()))
, TemplateId = ISNULL(CAST(TemplateId AS varchar(16)),'')
, IsRoot = ISNULL(IsRoot,0)
, IsActive = ISNULL(IsActive,0)
, SortOrdinal = ISNULL(CAST(SortOrdinal AS varchar(16)),'')
, ClientId = ISNULL(ClientId,'')
, Tag = CAST(Core.dbo.fCharFormat('xmlCDATA',Tag,DEFAULT,'') AS xml)
FROM
Document
WHERE
DocumentId = 9073
FOR XML AUTO, ELEMENTS
)
SELECT @xml
以下是类似于黄鼠狼的CDATA处理功能的相关细节:
IF @cmdName = 'xmlCDATA'
BEGIN
IF @chars IS NULL
BEGIN
SET @charsOut = @charsDefault
END
ELSE
BEGIN
SET @chars = REPLACE(@chars,'<![CDATA[','')
SET @chars = REPLACE(@chars,']]>','')
SET @charsOut = '<![CDATA[' + @chars + ']]>'
END
END