2

我有这个运行良好且没有问题的查询！

SELECT [Q].sHost
    , LEFT([Q].sDescription, Len([Q].sDescription) - 1) AS [sDescription]
FROM (

    SELECT DISTINCT [Q2].sHost
        , (
            SELECT CONVERT(NVARCHAR(MAX), [Q1].[sDescription]) + N', ' AS [text()]
            FROM (
                SELECT (
                        CASE 
                            WHEN (CHARINDEX('\', [sInstance]) = 0)
                                THEN [sInstance]
                            ELSE substring([sInstance], 0, CHARINDEX('\', [sInstance]))
                            END
                        ) AS sHost
                    , [sDescription]
                FROM [db_group].[dbo].[instanceCommentsList]
                ) AS [Q1]
            WHERE ([Q1].sHost = [Q2].sHost)
            FOR XML PATH('')
            ) [sDescription]
    FROM (
        SELECT (
                CASE 
                    WHEN (CHARINDEX('\', [sInstance]) = 0)
                        THEN [sInstance]
                    ELSE substring([sInstance], 0, CHARINDEX('\', [sInstance]))
                    END
                ) AS sHost
            , [sDescription]
        FROM [db_group].[dbo].[instanceCommentsList]
        ) AS [Q2]
    ) AS [Q]

当我将此查询另存为视图时，出现以下错误

'(' 附近的 WHERE 子句出错。

'=' 附近的 WHERE 子句出错。无法

解析查询文本。

不知道问题出在哪里！

它可以保存任何方式并且它有点工作，我可以在简单的选择查询中使用它，但是我在视图名称下得到一条红线，当我将鼠标放在上面时，我收到了这条消息

对象名称无效....

如果我在更复杂的查询中使用它，它根本不起作用

编辑： - - - - - - - - - - - - - - - - -

阅读后由于SelectDistinct的评论无法使 FOR XML PATH 工作

我修复了它，但仍然出现另一个错误！

'(' 附近的 WHERE 子句出错。

无法解析查询文本。

这是固定代码：

SELECT [Q].sHost
    , LEFT([Q].sDescription, Len([Q].sDescription) - 1) AS [sDescription]
FROM (

    SELECT DISTINCT [Q2].sHost
        , (
            SELECT CONVERT(VARCHAR(MAX), [Q1].[sDescription]) + ', ' AS [text()]
            FROM (
                SELECT (
                        CASE 
                            WHEN (CHARINDEX('\', [sInstance]) = 0)
                                THEN [sInstance]
                            ELSE substring([sInstance], 0, CHARINDEX('\', [sInstance]))
                            END
                        ) AS sHost
                    , [sDescription]
                FROM [db_group].[dbo].[instanceCommentsList]
                ) AS [Q1]
            WHERE ([Q1].sHost = [Q2].sHost)
            FOR XML PATH(''), type
       ).value('.', 'varchar(max)') as [sDescription]
    FROM (
        SELECT (
                CASE 
                    WHEN (CHARINDEX('\', [sInstance]) = 0)
                        THEN [sInstance]
                    ELSE substring([sInstance], 0, CHARINDEX('\', [sInstance]))
                    END
                ) AS sHost
            , [sDescription]
        FROM [db_group].[dbo].[instanceCommentsList]
        ) AS [Q2]
    ) AS [Q]
4

1 回答 1

0

尝试 WHERE [Q1].sHost = [Q2].sHost 而不是 WHERE ([Q1].sHost = [Q2].sHost) 。

于 2015-10-20T15:51:26.447 回答