Question

我在SQL中有VIEW，其列类型为XML。 VIEW的定义如下。

CREATE VIEW [dbo].[View_RequestDetails]
AS
    SELECT     
        r.RequestID, r.CompTypeID, ct.Name AS CompType, 
        r.LibID, r.Status, r.StateID, r.History, 
        r.LogID, r.ClosedDate, s.Closed AS StateClosed, 
        r.SubmissionDate, r.SubmitterUID, 
        (submitter.LName + ', ' + submitter.FName + ' ' + submitter.MiddleInit) AS SubmitterName, 
        r.ModifiedDate, r.ModifiedByID, r.LockStatus AS Lock,
        (modifier.LName + ', ' + modifier.FName + ' ' + modifier.MiddleInit) AS ModifierName,
        (SELECT AttributeName AS '@key', AttributeValue AS '@value'
         FROM dbo.View_RequestAttributes ra
         WHERE ra.RequestId = r.RequestId 
         FOR XML PATH('Attribute'), ROOT('RequestAttributes')) AS RequestAttributes,
        dbo.fnGetRequestProjectName(r.RequestID) AS ProjectName, 
        dbo.fnGetRequestProjectPriority(r.RequestID) AS ProjectPriority
    FROM    
        dbo.Request AS r 
    LEFT JOIN
        dbo.State AS s ON r.StateId = s.StateId 
    LEFT JOIN
        dbo.ComponentType AS ct ON r.CompTypeID = ct.CompTypeId 
    LEFT JOIN
        dbo.UserInfo AS submitter ON r.SubmitterUID = submitter.UID 
    LEFT JOIN
        dbo.UserInfo AS modifier ON r.ModifiedByID = modifier.UID

为列生成的XML值包含一些无效字符，如（	 ..等），因为生成此视图的表列中的值。

有没有什么办法可以限制XML类型列来生成格式良好的XML？

或者我们是否需要解析我们的代码以使XML有效并显示给用户？

Answer 1

尝试更改此

(SELECT AttributeName AS '@key', AttributeValue AS '@value'
     FROM dbo.View_RequestAttributes ra
     WHERE ra.RequestId = r.RequestId 
     FOR XML PATH('Attribute'), ROOT('RequestAttributes')) AS RequestAttributes,

到此（您需要TYPE扩展名让子选择回来时使用“真正的”XML）

(SELECT AttributeName AS '@key', AttributeValue AS '@value'
     FROM dbo.View_RequestAttributes ra
     WHERE ra.RequestId = r.RequestId 
     FOR XML PATH('Attribute'), ROOT('RequestAttributes'),TYPE) AS RequestAttributes,

SQL数据库中的XML类型列中的问题

1 个答案: