请问父子表的横向显示该如何实现
表结构
父亲 NUMBER(2),
子 NUMBER(2)
显示成这样
父亲1
子1 子2、子3
父亲2
子1、子2
附:create table OPCKB_WK_CATEGORY
(
CATEGORYNAME VARCHAR2(50),
DISPLAYORDER NUMBER(2),
DOCS NUMBER(5),
IMAGE VARCHAR2(255),
NAVIGATION VARCHAR2(255),
DP VARCHAR2(255),
PID NUMBER(2),
CATEGORYID NUMBER(2)
)
insert into OPCKB_WK_CATEGORY (CATEGORYNAME, DISPLAYORDER, DOCS, IMAGE, NAVIGATION, DP, PID, CATEGORYID)
values ('开发方案', null, null, null, null, null, 1, 5);
insert into OPCKB_WK_CATEGORY (CATEGORYNAME, DISPLAYORDER, DOCS, IMAGE, NAVIGATION, DP, PID, CATEGORYID)
values ('成果类型及共享方式', null, null, null, null, null, 1, 27);
insert into OPCKB_WK_CATEGORY (CATEGORYNAME, DISPLAYORDER, DOCS, IMAGE, NAVIGATION, DP, PID, CATEGORYID)
values ('实用工具', null, null, null, null, null, 1, 26);
insert into OPCKB_WK_CATEGORY (CATEGORYNAME, DISPLAYORDER, DOCS, IMAGE, NAVIGATION, DP, PID, CATEGORYID)
values ('油气层保护', null, null, null, null, null, 2, 28);
insert into OPCKB_WK_CATEGORY (CATEGORYNAME, DISPLAYORDER, DOCS, IMAGE, NAVIGATION, DP, PID, CATEGORYID)
values ('机械采油', null, null, null, null, null, 2, 29);
insert into OPCKB_WK_CATEGORY (CATEGORYNAME, DISPLAYORDER, DOCS, IMAGE, NAVIGATION, DP, PID, CATEGORYID)
values ('水平井采油', null, null, null, null, null, 2, 30);
insert into OPCKB_WK_CATEGORY (CATEGORYNAME, DISPLAYORDER, DOCS, IMAGE, NAVIGATION, DP, PID, CATEGORYID)
values ('三次采油', null, null, null, null, null, 2, 31);
insert into OPCKB_WK_CATEGORY (CATEGORYNAME, DISPLAYORDER, DOCS, IMAGE, NAVIGATION, DP, PID, CATEGORYID)
values ('分层注水', null, null, null, null, null, 2, 32);
insert into OPCKB_WK_CATEGORY (CATEGORYNAME, DISPLAYORDER, DOCS, IMAGE, NAVIGATION, DP, PID, CATEGORYID)
values ('套损井修复', null, null, null, null, null, 2, 33);
insert into OPCKB_WK_CATEGORY (CATEGORYNAME, DISPLAYORDER, DOCS, IMAGE, NAVIGATION, DP, PID, CATEGORYID)
values ('油气集输', null, null, null, null, null, 3, 34);
insert into OPCKB_WK_CATEGORY (CATEGORYNAME, DISPLAYORDER, DOCS, IMAGE, NAVIGATION, DP, PID, CATEGORYID)
values ('油田三水', null, null, null, null, null, 3, 35);
insert into OPCKB_WK_CATEGORY (CATEGORYNAME, DISPLAYORDER, DOCS, IMAGE, NAVIGATION, DP, PID, CATEGORYID)
values ('供配电', null, null, null, null, null, 3, 36);
insert into OPCKB_WK_CATEGORY (CATEGORYNAME, DISPLAYORDER, DOCS, IMAGE, NAVIGATION, DP, PID, CATEGORYID)
values ('道路建设', null, null, null, null, null, 3, 37);
insert into OPCKB_WK_CATEGORY (CATEGORYNAME, DISPLAYORDER, DOCS, IMAGE, NAVIGATION, DP, PID, CATEGORYID)
values ('给排水', null, null, null, null, null, 3, 38);
insert into OPCKB_WK_CATEGORY (CATEGORYNAME, DISPLAYORDER, DOCS, IMAGE, NAVIGATION, DP, PID, CATEGORYID)
values ('自控仪表', null, null, null, null, null, 3, 39);
insert into OPCKB_WK_CATEGORY (CATEGORYNAME, DISPLAYORDER, DOCS, IMAGE, NAVIGATION, DP, PID, CATEGORYID)
values ('防腐检测', null, null, null, null, null, 3, 40);
insert into OPCKB_WK_CATEGORY (CATEGORYNAME, DISPLAYORDER, DOCS, IMAGE, NAVIGATION, DP, PID, CATEGORYID)
values ('事故预案', null, null, null, null, null, 3, 41);
insert into OPCKB_WK_CATEGORY (CATEGORYNAME, DISPLAYORDER, DOCS, IMAGE, NAVIGATION, DP, PID, CATEGORYID)
values ('油田场站', null, null, null, null, null, 3, 42);
insert into OPCKB_WK_CATEGORY (CATEGORYNAME, DISPLAYORDER, DOCS, IMAGE, NAVIGATION, DP, PID, CATEGORYID)
values ('油藏工程', null, null, null, null, null, 0, 1);
insert into OPCKB_WK_CATEGORY (CATEGORYNAME, DISPLAYORDER, DOCS, IMAGE, NAVIGATION, DP, PID, CATEGORYID)
values ('采油工程', null, null, null, null, null, 0, 2);
insert into OPCKB_WK_CATEGORY (CATEGORYNAME, DISPLAYORDER, DOCS, IMAGE, NAVIGATION, DP, PID, CATEGORYID)
values ('地面工程', null, null, null, null, null, 0, 3);
insert into OPCKB_WK_CATEGORY (CATEGORYNAME, DISPLAYORDER, DOCS, IMAGE, NAVIGATION, DP, PID, CATEGORYID)
values ('信息产业', null, null, null, null, null, 0, 4);
insert into OPCKB_WK_CATEGORY (CATEGORYNAME, DISPLAYORDER, DOCS, IMAGE, NAVIGATION, DP, PID, CATEGORYID)
values ('储层描述', null, null, null, null, null, 1, 6);
insert into OPCKB_WK_CATEGORY (CATEGORYNAME, DISPLAYORDER, DOCS, IMAGE, NAVIGATION, DP, PID, CATEGORYID)
values ('动态分析', null, null, null, null, null, 1, 7);
insert into OPCKB_WK_CATEGORY (CATEGORYNAME, DISPLAYORDER, DOCS, IMAGE, NAVIGATION, DP, PID, CATEGORYID)
values ('数据管理', null, null, null, null, null, 4, 8);
insert into OPCKB_WK_CATEGORY (CATEGORYNAME, DISPLAYORDER, DOCS, IMAGE, NAVIGATION, DP, PID, CATEGORYID)
values ('网络管理', null, null, null, null, null, 4, 9);
insert into OPCKB_WK_CATEGORY (CATEGORYNAME, DISPLAYORDER, DOCS, IMAGE, NAVIGATION, DP, PID, CATEGORYID)
values ('软件开发', null, null, null, null, null, 4, 10);
commit;
父亲 NUMBER(2),
子 NUMBER(2)
显示成这样
父亲1
子1 子2、子3
父亲2
子1、子2
附:create table OPCKB_WK_CATEGORY
(
CATEGORYNAME VARCHAR2(50),
DISPLAYORDER NUMBER(2),
DOCS NUMBER(5),
IMAGE VARCHAR2(255),
NAVIGATION VARCHAR2(255),
DP VARCHAR2(255),
PID NUMBER(2),
CATEGORYID NUMBER(2)
)
insert into OPCKB_WK_CATEGORY (CATEGORYNAME, DISPLAYORDER, DOCS, IMAGE, NAVIGATION, DP, PID, CATEGORYID)
values ('开发方案', null, null, null, null, null, 1, 5);
insert into OPCKB_WK_CATEGORY (CATEGORYNAME, DISPLAYORDER, DOCS, IMAGE, NAVIGATION, DP, PID, CATEGORYID)
values ('成果类型及共享方式', null, null, null, null, null, 1, 27);
insert into OPCKB_WK_CATEGORY (CATEGORYNAME, DISPLAYORDER, DOCS, IMAGE, NAVIGATION, DP, PID, CATEGORYID)
values ('实用工具', null, null, null, null, null, 1, 26);
insert into OPCKB_WK_CATEGORY (CATEGORYNAME, DISPLAYORDER, DOCS, IMAGE, NAVIGATION, DP, PID, CATEGORYID)
values ('油气层保护', null, null, null, null, null, 2, 28);
insert into OPCKB_WK_CATEGORY (CATEGORYNAME, DISPLAYORDER, DOCS, IMAGE, NAVIGATION, DP, PID, CATEGORYID)
values ('机械采油', null, null, null, null, null, 2, 29);
insert into OPCKB_WK_CATEGORY (CATEGORYNAME, DISPLAYORDER, DOCS, IMAGE, NAVIGATION, DP, PID, CATEGORYID)
values ('水平井采油', null, null, null, null, null, 2, 30);
insert into OPCKB_WK_CATEGORY (CATEGORYNAME, DISPLAYORDER, DOCS, IMAGE, NAVIGATION, DP, PID, CATEGORYID)
values ('三次采油', null, null, null, null, null, 2, 31);
insert into OPCKB_WK_CATEGORY (CATEGORYNAME, DISPLAYORDER, DOCS, IMAGE, NAVIGATION, DP, PID, CATEGORYID)
values ('分层注水', null, null, null, null, null, 2, 32);
insert into OPCKB_WK_CATEGORY (CATEGORYNAME, DISPLAYORDER, DOCS, IMAGE, NAVIGATION, DP, PID, CATEGORYID)
values ('套损井修复', null, null, null, null, null, 2, 33);
insert into OPCKB_WK_CATEGORY (CATEGORYNAME, DISPLAYORDER, DOCS, IMAGE, NAVIGATION, DP, PID, CATEGORYID)
values ('油气集输', null, null, null, null, null, 3, 34);
insert into OPCKB_WK_CATEGORY (CATEGORYNAME, DISPLAYORDER, DOCS, IMAGE, NAVIGATION, DP, PID, CATEGORYID)
values ('油田三水', null, null, null, null, null, 3, 35);
insert into OPCKB_WK_CATEGORY (CATEGORYNAME, DISPLAYORDER, DOCS, IMAGE, NAVIGATION, DP, PID, CATEGORYID)
values ('供配电', null, null, null, null, null, 3, 36);
insert into OPCKB_WK_CATEGORY (CATEGORYNAME, DISPLAYORDER, DOCS, IMAGE, NAVIGATION, DP, PID, CATEGORYID)
values ('道路建设', null, null, null, null, null, 3, 37);
insert into OPCKB_WK_CATEGORY (CATEGORYNAME, DISPLAYORDER, DOCS, IMAGE, NAVIGATION, DP, PID, CATEGORYID)
values ('给排水', null, null, null, null, null, 3, 38);
insert into OPCKB_WK_CATEGORY (CATEGORYNAME, DISPLAYORDER, DOCS, IMAGE, NAVIGATION, DP, PID, CATEGORYID)
values ('自控仪表', null, null, null, null, null, 3, 39);
insert into OPCKB_WK_CATEGORY (CATEGORYNAME, DISPLAYORDER, DOCS, IMAGE, NAVIGATION, DP, PID, CATEGORYID)
values ('防腐检测', null, null, null, null, null, 3, 40);
insert into OPCKB_WK_CATEGORY (CATEGORYNAME, DISPLAYORDER, DOCS, IMAGE, NAVIGATION, DP, PID, CATEGORYID)
values ('事故预案', null, null, null, null, null, 3, 41);
insert into OPCKB_WK_CATEGORY (CATEGORYNAME, DISPLAYORDER, DOCS, IMAGE, NAVIGATION, DP, PID, CATEGORYID)
values ('油田场站', null, null, null, null, null, 3, 42);
insert into OPCKB_WK_CATEGORY (CATEGORYNAME, DISPLAYORDER, DOCS, IMAGE, NAVIGATION, DP, PID, CATEGORYID)
values ('油藏工程', null, null, null, null, null, 0, 1);
insert into OPCKB_WK_CATEGORY (CATEGORYNAME, DISPLAYORDER, DOCS, IMAGE, NAVIGATION, DP, PID, CATEGORYID)
values ('采油工程', null, null, null, null, null, 0, 2);
insert into OPCKB_WK_CATEGORY (CATEGORYNAME, DISPLAYORDER, DOCS, IMAGE, NAVIGATION, DP, PID, CATEGORYID)
values ('地面工程', null, null, null, null, null, 0, 3);
insert into OPCKB_WK_CATEGORY (CATEGORYNAME, DISPLAYORDER, DOCS, IMAGE, NAVIGATION, DP, PID, CATEGORYID)
values ('信息产业', null, null, null, null, null, 0, 4);
insert into OPCKB_WK_CATEGORY (CATEGORYNAME, DISPLAYORDER, DOCS, IMAGE, NAVIGATION, DP, PID, CATEGORYID)
values ('储层描述', null, null, null, null, null, 1, 6);
insert into OPCKB_WK_CATEGORY (CATEGORYNAME, DISPLAYORDER, DOCS, IMAGE, NAVIGATION, DP, PID, CATEGORYID)
values ('动态分析', null, null, null, null, null, 1, 7);
insert into OPCKB_WK_CATEGORY (CATEGORYNAME, DISPLAYORDER, DOCS, IMAGE, NAVIGATION, DP, PID, CATEGORYID)
values ('数据管理', null, null, null, null, null, 4, 8);
insert into OPCKB_WK_CATEGORY (CATEGORYNAME, DISPLAYORDER, DOCS, IMAGE, NAVIGATION, DP, PID, CATEGORYID)
values ('网络管理', null, null, null, null, null, 4, 9);
insert into OPCKB_WK_CATEGORY (CATEGORYNAME, DISPLAYORDER, DOCS, IMAGE, NAVIGATION, DP, PID, CATEGORYID)
values ('软件开发', null, null, null, null, null, 4, 10);
commit;
...全文
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