背景                                                                                                       项目中遇到一个需求,要求查处菜单节点的所有节点,在网上查了一下,大多数的方法用到了存储过程,由于线上环境不能随便添加存储过程, 因此在这里采用类似递归的方法对菜单的所有子节点进行查询. 准备                                                  …
T-Sql 递归查询(给定节点查所有父节点.所有子节点的方法)   -- 查找所有父节点with tab as( select Type_Id,ParentId,Type_Name from Sys_ParamType_V2_0 where Type_Id=316--子节点 union all select b.Type_Id,b.ParentId,b.Type_Name  from  tab a,--子节点数据集  Sys_ParamType_V2_0 b  --父节点数据集 where a.…
查找父节点下是否有子节点有两个情况:(1)查找的是父元素的所有后代节点:(2)仅查找父元素的第一代子节点. <div id="app"> <div> <span></span> </div> <div> <span><a></a></span> </div> </div> 查找所有后代节点 has() 以及 find() 函数能找到父元素的子节…
转(https://www.augsky.com/992.html) 选中父节点时,父节点下所有子节点也都全部选中 1,HTML代码 <h2>TreeView Checkable</h2> <div id="treeview-checkable"></div> 2,Json数据 function getTvStateData() { var defaultData = [ { text: 'Parent 1', href: '#paren…
-- 查找所有父节点with tab as( select Type_Id,ParentId,Type_Name from Sys_ParamType_V2_0 where Type_Id=316--子节点 union all select b.Type_Id,b.ParentId,b.Type_Name  from  tab a,--子节点数据集  Sys_ParamType_V2_0 b  --父节点数据集 where a.ParentId=b.Type_Id  --子节点数据集.paren…
select dept_id from ( select t1.dept_id,t1.parent_id, if(find_in_set(parent_id, @pids) > 0, @pids := concat(@pids, ',', dept_id), 0) as ischild from ( select dept_id,parent_id from sys_dept t where t.del_flag = '0' order by parent_id, dept_id ) t1, (…
stackoverflow的解决方案,亲测有效: SELECT * FROM person WHERE department IN (SELECT department_id FROM department WHERE department_id = UNION (SELECT department_id FROM (SELECT * FROM department ORDER BY parent_id,department_id) depart_sorted, (SELECT @pv := )…
<el-tree class="filter-tree" :data="permissionData" :props="props" node-key="id" ref="treeForm" show-checkbox :default-checked-keys="this.savedPermissionIds" :default-expanded-keys="this.…
;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;…
;with cte as( select id,ParentCategoryId from Category where id = 17 union all select a.id,a.ParentCategoryId from Category a join cte b on a.ParentCategoryId = b.id where a.id is not null) select * from cte…