如何在单个查询中使用 CTE 将一组行和 xml 生成的列插入到 table 中

Question

我正在生成样本 table 并使用其中的 cte xml 生成样本

declare @t table (ID int, PersonID int, Type varchar(10), Name varchar(10),                              
Category varchar(10), value int)
insert @t values
(1, 1234, 'xtype', 'John', 'abc', 200),
(2, 1234, 'ytype', 'John', 'xyz', 230),
(3, 1234, 'ztype', 'John', 'ccc', 220),
(4, 2222, 'xtype', 'Jim', 'abc', 200),
 (5, 3333, 'xtype', 'Tim', 'abc', 500)

; with cte
as (
select distinct PersonID from @t
 )
 select
(select
    PersonID,
    (select
         Type,
         Name,
         category,
         value
     from
         @t t
     where
         t.PersonID = cteInner.PersonID
     for xml path('SpecifiedType'), type ) 
from
    cte cteInner
where
    cteInner.PersonID = cteOuter.PersonID
for xml path(''), type, root('data') ) as xmldetail
from 
cte cteOuter

现在我想将以下数据插入另一个 table 包括 xml 我创建了其他数据列

  Example Table
  PersonID   Name           xmldetail
  1234       John        (GeneratedXmlFrom using cte)
  2222       Jim         (GeneratedXmlFrom using cte)
  3333       Tim         (GeneratedXmlFrom using cte)

Answer 1

只需将其添加到 select:

WITH    cte
          AS ( SELECT DISTINCT
                        PersonID,
                        Name                      
               FROM     @t
             )
    SELECT  PersonID, Name, ( SELECT    PersonID ,
                        ( SELECT    Type ,
                                    Name ,
                                    category ,
                                    value
                          FROM      @t t
                          WHERE     t.PersonID = cteInner.PersonID
                        FOR
                          XML PATH('SpecifiedType') ,
                              TYPE
                        )
              FROM      cte cteInner
              WHERE     cteInner.PersonID = cteOuter.PersonID
            FOR
              XML PATH('') ,
                  TYPE ,
                  ROOT('data')
            ) AS xmldetail
    FROM    cte cteOuter

输出：

PersonID    Name    xmldetail
1234    John   <data><PersonID>1234</PersonID><Name>John</Name><SpecifiedType><Type>xtype</Type><Name>John</Name><category>abc</category><value>200</value></SpecifiedType><SpecifiedType><Type>ytype</Type><Name>John</Name><category>xyz</category><value>230</value></SpecifiedType><SpecifiedType><Type>ztype</Type><Name>John</Name><category>ccc</category><value>220</value></SpecifiedType></data>
2222    Jim    <data><PersonID>2222</PersonID><Name>Jim</Name><SpecifiedType><Type>xtype</Type><Name>Jim</Name><category>abc</category><value>200</value></SpecifiedType></data>
3333    Tim    <data><PersonID>3333</PersonID><Name>Tim</Name><SpecifiedType><Type>xtype</Type><Name>Tim</Name><category>abc</category><value>500</value></SpecifiedType></data>

Answer 2

declare @t table (ID int, PersonID int, Type varchar(10), Name varchar(10),                              
Category varchar(10), value int)
insert @t values
(1, 1234, 'xtype', 'John', 'abc', 200),
(2, 1234, 'ytype', 'John', 'xyz', 230),
(3, 1234, 'ztype', 'John', 'ccc', 220),
(4, 2222, 'xtype', 'Jim', 'abc', 200),
 (5, 3333, 'xtype', 'Tim', 'abc', 500)
;WITH cte
AS (
    SELECT DISTINCT PersonID
        ,NAME
    FROM @t
    )
 insert into TABLENAME
SELECT PersonID
    ,NAME
    ,(
        SELECT PersonID
            ,(
                SELECT Type
                    ,NAME
                    ,category
                    ,value
                FROM @t t
                WHERE t.PersonID = cteInner.PersonID
                FOR XML PATH('SpecifiedType')
                    ,TYPE
                )
        FROM cte cteInner
        WHERE cteInner.PersonID = cteOuter.PersonID
        FOR XML PATH('')
            ,TYPE
            ,ROOT('data')
        ) AS xmldetail
FROM cte cteOuter

您必须在 select 列表中添加名称和 ID

SELECT 人名，姓名，

还必须在 CTE select 语句中包含名称

o/p

1234    John    <data><PersonID>1234</PersonID><SpecifiedType><Type>xtype</Type><Name>John</Name><category>abc</category><value>200</value></SpecifiedType><SpecifiedType><Type>ytype</Type><Name>John</Name><category>xyz</category><value>230</value></SpecifiedType><SpecifiedType><Type>ztype</Type><Name>John</Name><category>ccc</category><value>220</value></SpecifiedType></data>
2222    Jim     <data><PersonID>2222</PersonID><SpecifiedType><Type>xtype</Type><Name>Jim</Name><category>abc</category><value>200</value></SpecifiedType></data>
3333    Tim     <data><PersonID>3333</PersonID><SpecifiedType><Type>xtype</Type><Name>Tim</Name><category>abc</category><value>500</value></SpecifiedType></data>

要将值插入另一个 table 使用 insert into TABLENAME

如何在单个查询中使用 CTE 将一组行和 xml 生成的列插入到 table 中

how to insert a set of rows and xml generated column by using CTE into a table in single query

sql

xml

sql-server-2008

common-table-expression