Return 空递归 mysql 如果其中一项与 where 不匹配

Question

我有一个递归查询 return 所有元素直到父元素，但如果任何元素具有 active = 0，我需要它不会 return 任何结果。

组织结构图table:

idElement	idClient	idSubClient	idSport	idCategory	idTeam	idParent	active
1	1	-1	(null)	(null)	(null)	(null)	1
2	1	-1	30	(null)	(null)	1	1
3	1	-1	(null)	100	(null)	2	0
4	1	-1	(null)	(null)	120	3	1
5	1	-1	35	(null)	(null)	1	1
6	1	-1	(null)	125	(null)	5	1
7	1	-1	(null)	(null)	130	6	1

organigram_users table:

idRef	idElement	idUser	active
1	4	50	1
1	7	50	1

反向查询：

with recursive elem as (
   select elem.idUser, elem.idElement as root, o.idElement, o.idParent, o.idSport, o.active
   from organigram_users elem
   join organigram o on o.idElement = elem.idElement
   where elem.idUser = 50 and o.idClient = 1 and o.idSubClient = -1
   UNION ALL
   select elem.idUser, elem.root, o.idElement, o.idParent, o.idSport, o.active
   from elem 
   join organigram o on o.idElement = elem.idParent
)
select idElement, idParent, active,idsport, root
from elem          
group by idelement

我有一个组织结构图，我可以在其中将一个用户分配给组织结构图中的多个项目。根据分配它的元素，如果“活动”列是 1 或 0，我想检查所有父元素。如果其中一个 parnet 元素具有 active = 0，那么它不会 return 任何东西。

在这种情况下，用户被分配给元素 4 和 7。查询应该只显示元素 7 的父元素，因为元素 4 的父元素是活动的 = 0

预期结果（因为第三个元素有active = 0）： 1个 5个 6个 7

但结果是： 1个 2个 3个 4个 5个 6个 7

SQL Fiddle

我用 MariaDB

检查了我的递归查询 here

Answer 1

我想你需要的是：

with recursive elem as (
   select elem.idUser, elem.idElement as root, o.idElement, o.idParent, o.idSport, o.active
   from organigram_users elem
   join organigram o on o.idElement = elem.idElement
   where elem.idUser = 50 and o.idClient = 1 and o.idSubClient = -1
   UNION ALL
   select elem.idUser, elem.root, o.idElement, o.idParent, o.idSport, o.active
   from elem 
   join organigram o on o.idElement = elem.idParent
), elements
as (
select idElement, idParent, active,idsport, root
from elem          
group by idelement
)
select * from elements
where not exists (select 'x' from elements where active=false)

Return 空递归 mysql 如果其中一项与 where 不匹配

Return empty recursive mysql if one of items not match with where

sql

recursive-query

mariadb