标签：测试表 -- test group oracle com ble 图片 div
首先新建测试表
1 create table DIM_IA_TEST6 2 ( 3 NAME VARCHAR2(20), 4 OTHERNAME VARCHAR2(20) 5 )
插入数据
--如果没有重复的记录，则不用去重
使用union all实现，第一列（name）人与其他所有人都认识的sql:
select name,othername,count(othername)over(partition by name) nums from (select name,othername from (select name,othername from DIM_IA_TEST6 union all select othername name,name othername from DIM_IA_TEST6)t group by name,othername)
结果显示name与所有人认识的结果（nums为认识人数）：
标签：测试表 -- test group oracle com ble 图片 div
原文地址：https://www.cnblogs.com/xiao02fang/p/10009032.html
