Question

我有一个表，其中包含一些HR数据，包括（其他详细信息）职位ID，上级职位ID和组织单位ID。

类似

pos_id | parent_pos_id | pos_name            | org_id | org_name
   1   |     null      | CEO                 |   A    | Executive
   2   |       1       | Assistant           |   A    | Executive
   3   |       1       | IT Director         |   B    | Information Technology
   4   |       1       | Finances Director   |   C    | Finances
   5   |       3       | Systems Leader      |   B    | Information Technology
   6   |       5       | Database Manager    |   B1   | Database Systems
   7   |       5       | Application Manager |   B2   | OS and Applications
   8   |       4       | Finances Leader     |   C    | Finances
   9   |       4       | Financial Assistant |   C    | Finances
  10   |       8       | Payroll Manager     |   C1   | Payroll

，并且我需要基于位置层次关系获取每个记录的父组织单位ID的信息。

因此，对于上面的示例，所需的输出将是：

org_id | parent_org_id
   A   |      null
   B   |       A
   C   |       A
  B1   |       B
  B2   |       B
  C1   |       C

是否可以构建查询以在SQL Server数据库中获取此查询？

Answer 1

使用// this line is in my server.js app.use( express.static( path.join( __dirname, 'public' ) ) )

DEMO

self join

输出：

select  a.org_id as org_id,b.org_id as parentorgid
from t1 a
left join t1 b on a.parent_pos_id=b.pos_id
where a.org_id<>b.org_id or b.org_id is null

Answer 2

您需要为此编写一个递归CTE，伪代码在下面

with cte as 
(
 select org_id,parentorg_id,pos_id,parentpos_id from hrtable where parentpos_id is null
 UNION ALL
 select org_id,parentorg_id,pos_id,parentpos_idfrom hrtable t join cte c on t.parentpso_id=c.pos_id
)
select org_id,parentorg_id from cte c

如何基于职位层次结构获取组织单位的层次关系

2 个答案: