使用SQL将多个分组的xml文档插入到单个xml文档中

我有两张桌子

tmpEntityAddress

EntityId   Address
________   _______
5          <Address />
5          <Address />
7          <Address />

但它似乎只从tmpEntityAddress添加了一行，这不是我想要的，因为我需要整个集合

---

这在SQL中是可能的吗？如果是这样的话，如何实现这一点呢？

您完全正确，不应该像字符串一样连接XML。这是如何正确完成的-通过相关子查询：

declare @t table (
    Id int not null,
    Address xml not null
);

insert into @t (Id, Address)
values
    (5, N'<Address Val="1" />'),
    (5, N'<Address Val="2" />'),
    (7, N'<Address Val="7" />');


select sq.Id, (
    select t.Address
    from @t t
    where t.Id = sq.Id
    for xml path(''), type, root('Addresses')
    )
from (select distinct i.Id from @t i) sq
order by sq.Id;

---

根据需要，您可以在插入或更新中使用结果输出作为源。

您是对的，您可以使用。一次只修改一个操作

以下代码有一些假设：

在您的示例中，地址中的第二行应该具有EntityId=7 这两个表的XML中都有预先存在的内容 您可以使用可更新的CTE。该CTE将从地址表中选择地址列，并为给定ID添加所有XML的计算列

现在，我们可以使用modify一次在一个操作中插入所有组合地址项：

DECLARE @address TABLE (ID INT,[Address] XML);

INSERT INTO @address VALUES
 (5, N'<Address id="5a" ><Street>Some Street</Street></Address>')
,(5, N'<Address id="5b" ><Street>Some Other</Street></Address>')
,(7, N'<Address id="7" ><Street>One More</Street></Address>');

DECLARE @addresses TABLE (ID INT,AddrXML XML);

INSERT INTO @addresses VALUES
 (5, N'<Addresses><PreexistingContent>Blah</PreexistingContent></Addresses>')
,(7, N'<Addresses><PreexistingContent>Booh</PreexistingContent></Addresses>');

WITH CombinedAddress AS
(
    SELECT adrs.ID
          ,(
            SELECT adr.[Address]
            FROM @address AS adr
            WHERE adr.ID=adrs.ID
            FOR XML PATH(''),TYPE
           ) AS Combined
          ,adrs.AddrXML
    FROM @addresses AS adrs
)
UPDATE CombinedAddress
SET AddrXML.modify(N'insert sql:column("Combined") as last into (/Addresses)[1]');

SELECT * FROM @addresses 

结果

<Addresses>
  <PreexistingContent>Blah</PreexistingContent>
  <Address id="5a">
    <Street>Some Street</Street>
  </Address>
  <Address id="5b">
    <Street>Some Other</Street>
  </Address>
</Addresses>

---

地址中预先存在哪些其他内容？@Shnugo一组与地址相关的数据，如元素。我对它进行了修订，因为我认为它与当前的问题无关。我认为，OP希望将几个地址XML插入到另一个表中预先存在的地址XML中。您的方法只适用于一个表，但是-至少我理解这一点-它不能解决问题…这很接近，但是，我需要它的地址不能嵌套。

declare @t table (
    Id int not null,
    Address xml not null
);

insert into @t (Id, Address)
values
    (5, N'<Address Val="1" />'),
    (5, N'<Address Val="2" />'),
    (7, N'<Address Val="7" />');


select sq.Id, (
    select t.Address
    from @t t
    where t.Id = sq.Id
    for xml path(''), type, root('Addresses')
    )
from (select distinct i.Id from @t i) sq
order by sq.Id;

DECLARE @address TABLE (ID INT,[Address] XML);

INSERT INTO @address VALUES
 (5, N'<Address id="5a" ><Street>Some Street</Street></Address>')
,(5, N'<Address id="5b" ><Street>Some Other</Street></Address>')
,(7, N'<Address id="7" ><Street>One More</Street></Address>');

DECLARE @addresses TABLE (ID INT,AddrXML XML);

INSERT INTO @addresses VALUES
 (5, N'<Addresses><PreexistingContent>Blah</PreexistingContent></Addresses>')
,(7, N'<Addresses><PreexistingContent>Booh</PreexistingContent></Addresses>');

WITH CombinedAddress AS
(
    SELECT adrs.ID
          ,(
            SELECT adr.[Address]
            FROM @address AS adr
            WHERE adr.ID=adrs.ID
            FOR XML PATH(''),TYPE
           ) AS Combined
          ,adrs.AddrXML
    FROM @addresses AS adrs
)
UPDATE CombinedAddress
SET AddrXML.modify(N'insert sql:column("Combined") as last into (/Addresses)[1]');

SELECT * FROM @addresses 

<Addresses>
  <PreexistingContent>Blah</PreexistingContent>
  <Address>
    <Address id="5a">
      <Street>Some Street</Street>
    </Address>
  </Address>
  <Address>
    <Address id="5b">
      <Street>Some Other</Street>
    </Address>
  </Address>
</Addresses>

WITH CombinedAddress AS
(
    SELECT adrs.ID
          ,(
            SELECT adr.[Address] AS [*]
            FROM @address AS adr
            WHERE adr.ID=adrs.ID
            FOR XML PATH(''),TYPE
           ) AS Combined
          ,adrs.AddrXML
    FROM @addresses AS adrs
)
UPDATE CombinedAddress
SET AddrXML.modify(N'insert sql:column("Combined") as last into (/Addresses)[1]');

<Addresses>
  <PreexistingContent>Blah</PreexistingContent>
  <Address id="5a">
    <Street>Some Street</Street>
  </Address>
  <Address id="5b">
    <Street>Some Other</Street>
  </Address>
</Addresses>