sql-server-2008 - < 在 sql server 中转换为 <

Question

我的表中有一些数据

当我使用此查询选择该数据时

select TblActionHistories.Comments from TblActionHistories WHERE TblActionHistories.Entity=CAST('Task' AS VARCHAR) AND EntityId=CAST(32 AS VARCHAR)

这样就好了

Task- <b>T1</b> has been added by Swapnil Sharma
Task- <b>T1</b> status changed to <b>In Progress</b> by Swapnil Sharma<br/>

但现在我希望使用stuff将上面的结果#分开，所以我使用这个

SELECT STUFF((SELECT '#' + ISNULL(CAST(TblActionHistories.Comments AS VARCHAR(MAX)),'') FROM TblActionHistories WHERE TblActionHistories.Entity=CAST('Task' AS VARCHAR) AND EntityId=CAST(32 AS VARCHAR) for xml path ('')),1,1,'')

它给了我这个

Task- <b>T1</b> has been added by Swapnil Sharma#Task- <b>T1</b> status changed to <b>In Progress</b> by Swapnil Sharma<br/>

你可以清楚地看到所有的特殊字符。就像 < > 转换为 < >分别

请帮我解决这个问题，我希望它们采用原始格式

Answer 1

我找到了 IvanG 建议的解决方案

SELECT STUFF((SELECT '#' + ISNULL(CAST(TblActionHistories.Comments AS VARCHAR(MAX)),'') FROM TblActionHistories WHERE TblActionHistories.Entity=CAST('Task' AS VARCHAR) AND EntityId=CAST(32 AS VARCHAR) for xml path(''), root('MyString'), type ).value('/MyString[1]','varchar(max)') ,1,1,'')

引用。到这篇文章

http://blogs.lobsterpot.com.au/2010/04/15/handling-special-characters-with-for-xml-path/