从 T-SQL 组合 XML答案

【问题标题】：Combine XML from T-SQL从 T-SQL 组合 XML
【发布时间】：2023-03-11 14:57:01
【问题描述】：

我有两个单独的表 TVs 和 Receivers，我使用 FOR XML PATH 命令来构建 XML。我的问题是我想将我的 TV XML Build 的输出与我的 Receiver XML Build 结合起来创建一个 XML 输出。

所以我会有这样的东西（这允许我在 FilterData 根中保持电视和接收器标签分开）：

<FilterData>
<TVs>
    <TV>
        <Type>LCD</Type>
        <Brand>Samsung</Brand>
    </TV>
    <TV>
        <Type>LCD</Type>
        <Brand>Panasonic</Brand>
    </TV>
</TVs>
<Receivers>
    <Receiver>
        <Type>Surround 7.1</Type>
        <Brand>Onkyo</Brand>
    </Receiver>
    <Receiver>
        <Type>Surround 7.1</Type>
        <Brand>Denon</Brand>
    </Receiver>
</Receivers>
</FilterData>

问题是当我构建查询以输出此 XML 时

Select
Type
,Brand
From dbo.TVs
FOR XML PATH('TV'),ROOT('TVS') TYPE

与

Select
Type
,Brand
From dbo.Receivers
FOR XML PATH('Receiver'),ROOT('Receivers') TYPE

我不知道如何将这些组合起来看起来像示例：

<FilterData>
<TVs>
    <TV>
        <Type>LCD</Type>
        <Brand>Samsung</Brand>
    </TV>
    <TV>
        <Type>LCD</Type>
        <Brand>Panasonic</Brand>
    </TV>
</TVs>
<Receivers>
    <Receiver>
        <Type>Surround 7.1</Type>
        <Brand>Onkyo</Brand>
    </Receiver>
    <Receiver>
        <Type>Surround 7.1</Type>
        <Brand>Denon</Brand>
    </Receiver>
</Receivers>

【问题讨论】：

标签： sql sql-server xml tsql sql-server-2008

【解决方案1】：

用途：

 SELECT (SELECT t.type, t.brand
           FROM dbo.TVs t
        FOR XML PATH('tv'), ROOT('tvs'), ELEMENTS, TYPE),
       (SELECT r.type, r.brand
          FROM dbo.Receivers r
       FOR XML PATH('receiver'), ROOT('receivers'), ELEMENTS, TYPE)
FOR XML PATH('filterdata')

测试使用：

WITH tvs AS (
    SELECT 'LCD' AS type, 'Samsung' AS brand
    UNION ALL
    SELECT 'LCD' AS type, 'Panasonic' AS brand),
     receivers AS (
    SELECT 'Surround 7.1' AS type, 'Onkyo' AS brand
    UNION ALL
    SELECT 'Surround 7.1', 'Denon')
 SELECT (SELECT t.type, t.brand
           FROM tvs t
        FOR XML PATH('tv'), ROOT('tvs'), ELEMENTS, TYPE),
       (SELECT r.type, r.brand
          FROM receivers r
       FOR XML PATH('receiver'), ROOT('receivers'), ELEMENTS, TYPE)
FOR XML PATH('filterdata')

【讨论】：

【解决方案2】：

DECLARE @tvs TABLE
(
      [Type]    varchar(20) not null
    , [Brand]   varchar(50) not null
)

DECLARE @receivers TABLE
(
      [Type]    varchar(20) not null
    , [Brand]   varchar(50) not null
)

INSERT INTO @tvs([Type], [Brand]) Values('LCD', 'Samsung'), ('LCD', 'Panasonic');
INSERT INTO @receivers([Type], [Brand]) Values('Surround 7.1', 'Onkyo'), ('Surround 7.1', 'Dennon');



SELECT
    (
        SELECT
              [Type]
            , [Brand]
        FROM
            @tvs
        FOR XML PATH('TV'),ROOT('TVS'), TYPE
    )
    ,
    (
        SELECT
              [Type]
            , [Brand]
        FROM
            @receivers
        FOR XML PATH('Receiver'),ROOT('Receivers'), TYPE
    )
FOR XML PATH('FilterData');

【讨论】：