c# - 将列中的XML转换为表

我的输入是SQL Server表中的XML列，如下所示：

<word Entry="Ketab" Affix="miyanvand" Pos="esm" Derv="Jamed" />

期望输出：这样的表：

Entry    | Affix       | Pos     | Derv
Ketab    | miyanvand   | esm     | Jamed

最佳答案

如果您使用的是SQL Server 2005+。也许是这样的：

DECLARE @xml XML=
'<word Entry="Ketab" Affix="miyanvand" Pos="esm" Derv="Jamed" />'

SELECT
   Y.ID.value('(@Entry)[1]', 'Varchar(100)') as [Entry],
   Y.ID.value('(@Affix)[1]', 'Varchar(100)') as [Affix],
   Y.ID.value('(@Pos)[1]', 'Varchar(100)') as [Pos],
   Y.ID.value('(@Derv)[1]', 'Varchar(100)') as [Derv]
FROM @xml.nodes('/word') as Y(ID)

或者你也可以这样做：

DECLARE @xml XML=
'<word Entry="Ketab" Affix="miyanvand" Pos="esm" Derv="Jamed" />'

SELECT
    @xml.value('(/word/@Entry)[1]', 'varchar(50)') as Entry,
    @xml.value('(/word/@Affix)[1]', 'varchar(50)') as Affix,
    @xml.value('(/word/@Pos)[1]', 'varchar(50)') as Pos,
    @xml.value('(/word/@Derv)[1]', 'varchar(50)') as Derv

或者你有桌子的话。然后像这样：

DECLARE @tbl TABLE(ID INT,someXML XML)
INSERT INTO @tbl
VALUES
    (1,'<word Entry="Ketab" Affix="miyanvand" Pos="esm" Derv="Jamed" />')

SELECT
    tbl.ID,
    Y.ID.value('(@Entry)[1]', 'Varchar(100)') as [Entry],
    Y.ID.value('(@Affix)[1]', 'Varchar(100)') as [Affix],
    Y.ID.value('(@Pos)[1]', 'Varchar(100)') as [Pos],
    Y.ID.value('(@Derv)[1]', 'Varchar(100)') as [Derv]
FROM
    @tbl AS tbl
    CROSS APPLY someXML.nodes('/word') as Y(ID)