select * from o_org where org_no like '%43406%'
/* 已知根节点 查询所有的子节点*/
select * from o_org o start with org_no='43406' connect by PRIOR org_no = p_org_no
/* 已知子节点 查询其所有的上层节点 */
select * from o_org o start with org_no='43406' connect by org_no = PRIOR p_org_no