查詢不返回正確的結果 - SQL服務器的Xquery

Question

我有示例XML看起來是這樣的：

<tst:Root xmlns:tst="http://tempuri.org/some.xsd" SchemaVersion="0.2.1234.12345" RevNumber="1"> 
    <tst:stuff someID="1">This is <tst:comment>1st.</tst:comment> what I <tst:comment>2nd</tst:comment>just want to show</tst:stuff> 
</tst:Root> 

我怎麼能只返回「這是我只是想表明」？

這是表格和我試過的。

CREATE TABLE [dbo].[XmlTable](
    [XmlId] [int] IDENTITY(1,1) NOT NULL, 
    [XmlDoc] [xml] NOT NULL, 
CONSTRAINT [PK_XmlTable] PRIMARY KEY CLUSTERED 
(
    [XmlId] ASC 
)WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY] 
) ON [PRIMARY] TEXTIMAGE_ON [PRIMARY] 

GO 
SET IDENTITY_INSERT [dbo].[XmlTable] ON 

INSERT [dbo].[XmlTable] ([XmlId], [XmlDoc]) VALUES (1, N'<tst:Root xmlns:tst="http://tempuri.org/some.xsd" SchemaVersion="0.2.1234.12345" RevNumber="1"><tst:stuff someID="1">This is <tst:comment>1st.</tst:comment> what I <tst:comment>2nd</tst:comment>just want to show</tst:stuff></tst:Root>') 
SET IDENTITY_INSERT [dbo].[XmlTable] OFF 

和我曾嘗試：

這一個只返回「這是」符合市場預期。

--WITH XMLNAMESPACES (Default 'http://tempuri.org/some.xsd') 
--SELECT  

-- a.value('text()[1]', 'nvarchar(100)') as SampleXml 
-- From 
-- XmlTable As x 
-- Cross Apply XmlDoc.nodes('Root/stuff') a(a) 

這一個是返回的一切：「這是第一次我2ndjust想顯示」

WITH XMLNAMESPACES (Default 'http://tempuri.org/some.xsd') 
SELECT  

    a.value('.', 'nvarchar(100)') as SampleXml 
    From 
    XmlTable As x 
    Cross Apply XmlDoc.nodes('Root/stuff') a(a) 

我怎樣才能排除註釋節點，但仍然得到正確的結果？

編輯：

我想這樣的回報吧：

是否有更簡單的方法來做到這一點比下面

WITH XMLNAMESPACES (Default 'http://tempuri.org/some.xsd') 
SELECT  

a.value('text()[1]', 'nvarchar(100)') + a.value('text()[2]', 'nvarchar(100)') + a.value('text()[3]', 'nvarchar(100)') as SampleXml 

From 
XmlTable As x 
Cross Apply XmlDoc.nodes('Root/stuff') a(a) 

Answer 1

試試這個：

declare @xml xml; 

set @xml = convert(xml, 'your XML'); 

with xmlnamespaces (Default 'http://tempuri.org/some.xsd') 
select @xml.query('//stuff/text()') 

假設你有一個XML列的表，它是這樣的：

-- Set up the XML table to demonstrate 
declare @table table 
(
     ID int, 
     xmlDoc xml 
) 

-- insert your example XML 
insert into @table 
Values (1, '<tst:Root xmlns:tst="http://tempuri.org/some.xsd" SchemaVersion="0.2.1234.12345" RevNumber="1"><tst:stuff someID="1">This is <tst:comment>1st.</tst:comment> what I <tst:comment>2nd</tst:comment>just want to show</tst:stuff></tst:Root>'); 

-- Do the query 
with xmlnamespaces (Default 'http://tempuri.org/some.xsd') 
select ID, xmlDoc.query('//Root/stuff/text()') as SampleXml 
from @table 

這是我的結果是這樣的：