Sql 如何在SSIS中从同一个表中的不同级别获取父子记录？

以下是所需的详细信息和输出

该表有3列：

记录

父记录

活跃的

根据非活动列，输出要求如下所示：

e、 g 1

输出

Record   Parent_Record   Isactive
    5           1            1

 Record   Parent_Record   Isactive
        5           3            1

e、 G2

输出

Record   Parent_Record   Isactive
    5           1            1

 Record   Parent_Record   Isactive
        5           3            1

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您可以使用递归CTE从叶节点开始构建层次结构，然后返回到更高的活动父节点：

declare @tmp table (Record  int, Parent_Record  int, Isactive bit)
declare @recordToCheck int = 5

insert into @tmp values
 (1, 0, 1) 
,(2, 1, 0)
,(3, 1, 0)
,(4, 2, 0)
,(5, 3, 1)

;WITH RESULT (Record, Parent_Record, Isactive, Lev)
AS
(
    --anchor
    SELECT A.Record,Parent_Record, Isactive, 1 AS LEVEL
    FROM @tmp AS A 
    WHERE A.Record = @recordToCheck

    UNION ALL

    --outer
    SELECT C.Record, C.Parent_Record, C.Isactive, Lev + 1  
    FROM @tmp AS C
    INNER JOIN RESULT AS B 
    ON C.Record=B.Parent_Record
)
select top 1 @recordToCheck as Record, Record as Parent_Record, Isactive 
from RESULT 
where Isactive = 1 
order by lev desc

示例1的结果：

示例2的结果：

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您可能需要一个递归cte来获取父记录。这个问题应该让你开始。