Find centralized, trusted content and collaborate around the technologies you use most.
Teams
Q&A for work
Connect and share knowledge within a single location that is structured and easy to search.
我在试卷上读到这句话
您可以在不调用聚合函数的情况下对行进行分组。
谁能给我一个例子?
这是作业吗?这是一个没有聚合函数的 group by
select a, b from table group by a,b
结果将与此相同:
select distinct a, b from table