如何查询某层级的上级组织？

Question

我们有 5 个级别的组织，从下到上将是 (Unit -> Section -> Department(Dep) -> General Department (GDep) -> Sector)

我需要的是让所有组织的GDep都低于GDep。

所以如果我们有这个 table

Child     Parent
--------  --------
Unit1     Section1
Unit2     Section1
Unit3     Dep1
Unit4     GDep1
Section1  GDep1
Dep1      GDep2
GDep1     Sector1
GDep2     Sector1

我需要查询结果为

Child     Parent
--------  --------
Unit1     GDep1
Unit2     GDep1
Unit3     GDep2
Unit4     GDep1
Section1  GDep1
Dep1      GDep2

这是原始查询

    select DISTINCT HAOU_PARENTS.ORGANIZATION_ID, HAOU_PARENTS.NAME, HAOU_PARENTS.TYPE, HAOU_CHILDS.ORGANIZATION_ID, HAOU_CHILDS.NAME,  HAOU_CHILDS.TYPE, SYS_CONNECT_BY_PATH(HAOU_CHILDS.NAME, '#'), LEVEL
FROM per_org_structure_elements POSE
    JOIN hr_all_organization_units HAOU_PARENTS ON (POSE.ORGANIZATION_ID_PARENT = HAOU_PARENTS.ORGANIZATION_ID)
    JOIN hr_all_organization_units HAOU_CHILDS ON (POSE.ORGANIZATION_ID_CHILD = HAOU_CHILDS.ORGANIZATION_ID)
WHERE 1=1
    AND pose.org_structure_version_id = 2061
START WITH UPPER(HAOU_PARENTS.TYPE) = 'GDEP'
    CONNECT BY PRIOR POSE.ORGANIZATION_ID_CHILD = POSE.ORGANIZATION_ID_PARENT
ORDER BY 4
;

结果与预期的输出相去甚远，而且非常随机。

"per_org_structure_elements" 包含组织层次结构，"hr_all_organization_units" 包含名称等组织详细信息，并输入。

Answer 1

假设您的 table 有一个 org_type 列使用您描述的不同组织级别的值，您可以这样做：

select child, connect_by_root(child) as gdep
from your_table
where org_type in ('Unit', 'Section', 'Dep')
connect by parent = prior child
start with org_type = 'GDep';

The connect_by_root() clause 为您提供层次结构根部的子值，这将是 start with 行的 GDep。

由于层次结构未在任何地方定义（据我们所知），您可以明确列出要包含的较低级别，但如果 well-defined 则不需要，因为子级无论如何应该是 'lower'。

使用 CTE 中的示例数据进行演示，添加了 org_type 个值：

with your_table(child, parent, org_type) as (
            select 'Unit1', 'Section1', 'Unit' from dual
  union all select 'Unit2', 'Section1', 'Unit' from dual
  union all select 'Unit3', 'Dep1', 'Unit' from dual
  union all select 'Unit4', 'GDep1', 'Unit' from dual
  union all select 'Section1', 'GDep1', 'Section' from dual
  union all select 'Dep1', 'GDep2', 'Dep' from dual
  union all select 'GDep1', 'Sector1', 'GDep' from dual
  union all select 'GDep2', 'Sector1', 'GDep' from dual
)
select child, connect_by_root(child) as gdep
from your_table
where org_type in ('Unit', 'Section', 'Dep')
connect by parent = prior child
start with org_type = 'GDep';

CHILD    GDEP    
-------- --------
Section1 GDep1   
Unit1    GDep1   
Unit2    GDep1   
Unit4    GDep1   
Dep1     GDep2   
Unit3    GDep2

根据您添加的查询，等效项是（我认为，没有看到数据）：

connect_by_root(haou_parents.name) as gdep

根据您的样本，有更多 made-up 数据：

with per_org_structure_elements(org_structure_version_id, organization_id_child,
    organization_id_parent) as (
            select 2061, 1, 5 from dual
  union all select 2061, 2, 5 from dual
  union all select 2061, 3, 6 from dual
  union all select 2061, 4, 7 from dual
  union all select 2061, 5, 7 from dual
  union all select 2061, 6, 8 from dual
  union all select 2061, 7, 9 from dual
  union all select 2061, 8, 9 from dual
),
hr_all_organization_units(organization_id, name, type) as (
            select 1, 'Unit1', 'Unit' from dual
  union all select 2, 'Unit2', 'Unit' from dual
  union all select 3, 'Unit3', 'Unit' from dual
  union all select 4, 'Unit4', 'Unit' from dual
  union all select 5, 'Section1', 'Section' from dual
  union all select 6, 'Dep1', 'Dep' from dual
  union all select 7, 'GDep1', 'GDep' from dual
  union all select 8, 'GDep2', 'GDep' from dual
  union all select 9, 'Sector1', 'Sector' from dual
)
select distinct haou_parents.organization_id,
  haou_parents.name,
  haou_parents.type,
  haou_childs.organization_id,
  haou_childs.name,
  haou_childs.type,
  sys_connect_by_path(haou_childs.name, '#') as path,
  connect_by_root(haou_parents.name) as gdep,
  level
from per_org_structure_elements pose
join hr_all_organization_units haou_parents
on (pose.organization_id_parent = haou_parents.organization_id)
join hr_all_organization_units haou_childs
on (pose.organization_id_child = haou_childs.organization_id)
where 1=1
and pose.org_structure_version_id = 2061
start with upper(haou_parents.type) = 'GDEP'
connect by prior pose.organization_id_child = pose.organization_id_parent
order by 4;

获得

ORGANIZATION_ID NAME     TYPE    ORGANIZATION_ID NAME     TYPE    PATH                 GDEP          LEVEL
--------------- -------- ------- --------------- -------- ------- -------------------- -------- ----------
              5 Section1 Section               1 Unit1    Unit    #Section1#Unit1      GDep1             2
              5 Section1 Section               2 Unit2    Unit    #Section1#Unit2      GDep1             2
              6 Dep1     Dep                   3 Unit3    Unit    #Dep1#Unit3          GDep2             2
              7 GDep1    GDep                  4 Unit4    Unit    #Unit4               GDep1             1
              7 GDep1    GDep                  5 Section1 Section #Section1            GDep1             1
              8 GDep2    GDep                  6 Dep1     Dep     #Dep1                GDep2             1

如何查询某层级的上级组织？

How to query parent organization in certain level?

sql

oracle

hierarchical-data