--查询ID = '009'的所有父节点 ' ;WITH T AS ( SELECT ID , PID , NAME FROM TB WHERE ID = @ID UNION ALL SELECT A.ID , A.PID , A.NAME FROM TB AS A JOIN T AS B ON A.ID = B.PID ) SELECT * FROM T ORDER BY ID /* ID PID NAME ---- ---- ---------- 001 NULL 广东省 003 001 深
用 querySelectorAll 来查询 DOM 节点 Document.querySelectorAll - Web API 接口 | MDN https://developer.mozilla.org/zh-CN/docs/Web/API/Document/querySelectorAll NodeList - Web API 接口 | MDN https://developer.mozilla.org/zh-CN/docs/Web/API/NodeList
通过子节点向根节点追朔. select * from persons.dept start with deptid=76 connect by prior paredeptid=deptid 通过根节点遍历子节点(不包含根节点). select * from persons.dept start with paredeptid=0 connect by prior deptid=paredeptid 通过根节点遍历子节点(包含根节点). select * from persons.dept st
本随笔文章,由个人博客(鸟不拉屎)转移至博客园 发布时间: 2018 年 11 月 29 日 原地址:https://niaobulashi.com/archives/oracle-select-all.html 刚刚开发需求写了个SQL,记个笔记,学习下关于数据库的多表合并查询的用法 select t.* from A t UNION ALL/UNION/Intersect/MINUS select s.* from B s; UNION ALL 使用UNION ALL,表示取A.B的合集,不
-->Title:Generating test data -->Author:wufeng4552 -->Date :2009-09-30 08:52:38 set nocount on if object_id('tb','U')is not null drop table tb go create table tb(ID int, ParentID int) , , , , , , , -->Title:查找指定節點下的子結點 if object_id('Uf_GetChil
;with cte as ( select * from Associator where No = 'mc1007' union all select air.* from Associator as air inner join cte on air.ParentNo = cte.No ) select * from cte;