zoukankan      html  css  js  c++  java
  • oracle查询父节点及其下所有子节点

    1.我们的组织机构就是这种树形菜单的格式。

    .

    2.执行sql:

    select
    ( select organization_name from SYS_ORGANIZATION where organization_id =x.organization_id) organization_name,
    c.organization_id
    from SYS_ORGANIZATION c, (select organization_id from SYS_ORGANIZATION where parent_id = '1') x where x.organization_id = c.organization_id or x.organization_id = c.parent_id start with c.organization_id =x.organization_id
    connect by prior c.organization_id = c.parent_id

    效果:

    3.执行sql:

    select organization_name,wmsys.wm_concat(organization_id ) organization_ids from
    (select
    ( select organization_name from SYS_ORGANIZATION where organization_id =x.organization_id) organization_name,
    c.organization_id
    from SYS_ORGANIZATION c, (select organization_id from SYS_ORGANIZATION where parent_id = '1') x where x.organization_id = c.organization_id or x.organization_id = c.parent_id start with c.organization_id =x.organization_id
    connect by prior c.organization_id = c.parent_id ) a group by organization_name

    效果:

     4.执行sql:

    select a.organization_name,count(c.organization_id) sum from
    (select organization_name,wmsys.wm_concat(organization_id ) organization_ids from
    (select
    ( select organization_name from SYS_ORGANIZATION where organization_id =x.organization_id) organization_name,
    c.organization_id
    from SYS_ORGANIZATION c, (select organization_id from SYS_ORGANIZATION where parent_id = '1') x where x.organization_id = c.organization_id or x.organization_id = c.parent_id start with c.organization_id =x.organization_id
    connect by prior c.organization_id = c.parent_id ) a group by organization_name ) a left join
    (select c.clxxbh,c.organization_id from v_wfxx c left join BIZ_IMPORTANT_PLACES z on c.kkmc = z.place_name left join SYS_ORGANIZATION c on z.place_unit = c.organization_id) c
    on instr(a.organization_ids,c.organization_id) > 0 group by a.organization_name

    效果:

  • 相关阅读:
    谨以此文纪念一周的心血历程
    面向对象初调用:foolish 电梯
    洛谷 1016 旅行家的预算
    洛谷 1514 引水入城
    洛谷 3178 树上操作
    洛谷 3811 【模板】乘法逆元
    洛谷 1156 垃圾陷阱
    洛谷 1363 幻想迷宫
    洛谷 1736 创意吃鱼法
    洛谷 1436 棋盘分割
  • 原文地址:https://www.cnblogs.com/liyang19910805/p/5711954.html
Copyright © 2011-2022 走看看