在数据库中,我试图为查询结果中的每一行生成如下所示的XML:
<Message>
<Header>
<MessageName>MyMessage</MessageName>
<TimeStamp>2017-03-31T14:32:48</TimeStamp>
<TrackingNum>1</TrackingNum>
</Header>
<Body>
<Activity>
<GUID>SomeGUID</GUID>
<OrderNum>3242432<OrderNum/>
<OrderDate>20160331143248</OrderDate>
</Activity>
</Body>
</Message>
我的查询看起来像这样:
SELECT
(SELECT DISTINCT top 20
[GUID],
OrderNum,
OrderDate,
FROM TableA
For XML PATH('Activity'), Type
) as Body
For XML path('Message'), TYPE
此查询输出<Message><Body>
标记中包含的所有行,只包含一个包含所有内容的XML的单元格。我不知道在哪里包含<Header>
部分的信息。
上面的查询产生以下内容:不正确/不完整:
<Message>
<Body>
<Activity>
<GUID>sdlksdkljsdkl</GUID>
<OrderNum>23423423</OrderNum>
<OrderDate>20160431143248</OrderDate>
</Activity>
<Activity>
<GUID>sdfsdfsw4erw</GUID>
<OrderNum>45560900</OrderNum>
<OrderDate>20160531143248</OrderDate>
</Activity>
<Activity>
<GUID>retertertwew</GUID>
<OrderNum>873409384</OrderNum>
<OrderDate>20160631143248</OrderDate>
</Activity>
</Body>
</Message>
我们如何在<Body>
标记之前添加标题部分,同时将输出拆分为多行?感谢您的任何帮助。
编辑:
模拟Body/Activity
元素的数据:
GUID OrderNum OrderDate
AAAA 1000 2017-04-13 12:00
BBBB 2000 2017-04-13 12:00
CCCC 3000 2017-04-13 12:00
我试图在上面的第一个XML块中获取自己的xml中的每一行。
答案 0 :(得分:1)
只需将标题添加为 XML类型列:
DECLARE @tbl TABLE([GUID] UNIQUEIDENTIFIER,OrderNum BIGINT, OrderDate DATETIME);
INSERT INTO @tbl VALUES(NEWID(),1111111,{ts'2001-01-01 01:00:00'})
,(NEWID(),2222222,{ts'2002-02-02 02:00:00'})
,(NEWID(),3333333,{ts'2003-03-03 03:00:00'});
SELECT
(
SELECT 'SomeMessageName' AS MessageName
,GETDATE() AS [TimeStamp]
,1 AS TraxingNum
FOR XML PATH('Header'),TYPE
)
,(
SELECT DISTINCT top 20
[GUID],
OrderNum,
OrderDate
FROM @tbl AS TableA
For XML PATH('Activity'), Type
) as Body
For XML path('Message'),TYPE;
结果
<Message>
<Header>
<MessageName>SomeMessageName</MessageName>
<TimeStamp>2017-04-13T10:20:09</TimeStamp>
<TraxingNum>1</TraxingNum>
</Header>
<Body>
<Activity>
<GUID>79DE31D2-4727-4880-BB11-72564AE707B0</GUID>
<OrderNum>3333333</OrderNum>
<OrderDate>2003-03-03T03:00:00</OrderDate>
</Activity>
<Activity>
<GUID>A9410295-5C78-4EC8-A904-8CB1D10563CF</GUID>
<OrderNum>2222222</OrderNum>
<OrderDate>2002-02-02T02:00:00</OrderDate>
</Activity>
<Activity>
<GUID>3192B87D-7C1A-4B95-A477-E10D2FC2845F</GUID>
<OrderNum>1111111</OrderNum>
<OrderDate>2001-01-01T01:00:00</OrderDate>
</Activity>
</Body>
</Message>
20160531143248
一样。您应始终在 XML中使用ISO8601 。否则当你试着读这篇文章时,你会感到额外的痛苦。TOP
而不是ORDER BY
是 - 嗯 - 至少是危险的......(你看,我的结果中的顺序不是预期的顺序吗?)根据您的评论,我认为您正在搜索其中一个(使用上面的模拟表测试它们):
SELECT
'SomeMessageName' AS [Header/MessageName]
,GETDATE() AS [Header/TimeStamp]
,1 AS [Header/TraxingNum]
,[GUID] AS [Body/GUID]
,OrderNum AS [Body/OrderNum]
,OrderDate AS [Body/OrderDate]
FROM @tbl AS TableA
FOR XML PATH('Message'),TYPE;
SELECT
(SELECT
'SomeMessageName' AS [Header/MessageName]
,GETDATE() AS [Header/TimeStamp]
,1 AS [Header/TraxingNum]
,[GUID] AS [Body/GUID]
,OrderNum AS [Body/OrderNum]
,OrderDate AS [Body/OrderDate]
FOR XML PATH('Message'),TYPE)
FROM @tbl AS TableA;