方法1 full outer join
a full outer join b
方法2 join
a join b on 1=1
方法3 ,
select a.,b. from a,b
hive笛卡尔积
最新推荐文章于 2023-06-07 09:53:56 发布
方法1 full outer join
a full outer join b
方法2 join
a join b on 1=1
方法3 ,
select a.,b. from a,b