目录
0 需求描述
2 数据准备
3 问题分析
4 小结
0 需求描述
-- 按照 日期，省份，等级 分组 求分数的平均值；但是需要剔除当前行的数据
2 数据准备
create table avgtest as (select '2024-10-24' as cdate, '广东' as province,'深圳' as city, '2' as level, 200 as scoreunion allselect '2024-10-24' as cdate, '广东' as province,'广州' as city, '3' as level, 300 as scoreunion allselect '2024-10-24' as cdate, '广东' as province,'湛江' as city, '4' _kaic)
)
)
)