查询效果
先贴源码
select t.org_code,t.parent_code,t.org_abbreviation
from sys_organization t
where t.del_flag = '0'
start with t.org_code = 'C105' --顶级节点条件
connect by prior t.org_code = t.parent_code --链接条件
表结构, 父子结构列是连接条件
connect by prior t.org_code = t.parent_code