Question

我目前无法运行以下SQL查询：

SELECT 
    c.[DeviceName],
    STUFF((SELECT ' + ' +  sw.[SuiteName] FROM [dbo].[AppSoftwareSuites] as sw where sw.[Computer_Idn] = c.[Computer_Idn] AND sw.[SuiteName] like 'CFRM-Server%' FOR XML PATH('')),1,3,'') AS 'CFRM',
    STUFF((SELECT ' + ' +  sw.[SuiteName] FROM [dbo].[AppSoftwareSuites] as sw where sw.[Computer_Idn] = c.[Computer_Idn] AND sw.[SuiteName] like 'Communication Module%' FOR XML PATH('')),1,3,'') AS 'Communication Module',
    STUFF((SELECT ' + ' +  sw.[SuiteName] FROM [dbo].[AppSoftwareSuites] as sw where sw.[Computer_Idn] = c.[Computer_Idn] AND sw.[SuiteName] like 'GEBIT-Commons-Java%' FOR XML PATH('')),1,3,'') AS 'Gebit Commons Java',
    STUFF((SELECT ' + ' +  sw.[SuiteName] FROM [dbo].[AppSoftwareSuites] as sw where sw.[Computer_Idn] = c.[Computer_Idn] AND sw.[SuiteName] like 'GEBIT-Commons_JBOSS%' FOR XML PATH('')),1,3,'') AS 'Gebit Commons JBOSS',
    STUFF((SELECT ' + ' +  sw.[SuiteName] FROM [dbo].[AppSoftwareSuites] as sw where sw.[Computer_Idn] = c.[Computer_Idn] AND sw.[SuiteName] like 'Mobile Store%' FOR XML PATH('')),1,3,'') AS 'Mobile Store',
    STUFF((SELECT ' + ' +  sw.[SuiteName] FROM [dbo].[AppSoftwareSuites] as sw where sw.[Computer_Idn] = c.[Computer_Idn] AND sw.[SuiteName] like 'NEWPOSS-Store-Server%' FOR XML PATH('')),1,3,'') AS 'NEWPOSS',
    STUFF((SELECT ' + ' +  sw.[SuiteName] FROM [dbo].[AppSoftwareSuites] as sw where sw.[Computer_Idn] = c.[Computer_Idn] AND sw.[SuiteName] like 'Store Portal - Complete%' FOR XML PATH('')),1,3,'') AS 'Store Portal',
    STUFF((SELECT ' + ' +  sw.[SuiteName] FROM [dbo].[AppSoftwareSuites] as sw where sw.[Computer_Idn] = c.[Computer_Idn] AND sw.[SuiteName] like 'Store S&R Services%' FOR XML PATH('')),1,3,'') AS 'SSR'
FROM 
    [dbo].[Computer] as c WITH (NOLOCK)
WHERE
    c.[DeviceName] LIKE '%STL01'
ORDER BY 
    c.[DeviceName] ASC;

输出很好，但似乎数据库中的一个产品（＆＃39; SSR＆＃39;）有一个＆＃34;＆amp;＆＃34;导致输出损坏的字符（＆＃39;存储S＆amp; R服务＆＃39;而不是＆＃39; S＆amp; R服务xx.xx.xx＆＃39;）。

是否有机会在输出中执行字符串替换？

＆＃39;对于XML＆＃39;是因为数据库中每个DeviceName有两个条目，导致结果为空。

感谢任何帮助：）

Answer 1

看看这个：

DECLARE @teststring VARCHAR(100)='This is for test & show';

SELECT(SELECT ' + ' + @teststring FOR XML PATH(''));

SELECT((SELECT ' + ' + @teststring FOR XML PATH(''),TYPE).value('.','nvarchar(max)'));

两个结果是：

+ This is for test &amp; show
+ This is for test & show

将FOR XML与禁用字符一起使用（在大多数情况下，'＆lt;，＆gt;和＆amp;'）将导致转义实体。 XML只是不能使用这些字符，因为它们具有元语义。

还有更多字符会导致像换行符或许多外来字符等麻烦......

简单的解决方案：如第二行所示换行SELECT ... FOR XML ...，并通过value()方法读取内部值。这将隐式地将实体重新编码为前一个字符。

SQL Server 2008结果字符串替换 - 多标识符

1 个答案: