sql 重复数据中读取不同的前面几条



如何快速读取前面几条记录：

取得结果如下图：


或者结果如下图：

[最优解释]
select * from (select *,rowindex=row_number()over(partition by name order by id) from 表)t where t.rowindex<=5

[其他解释]

select distinct(name),hospitalid,hospitalname from hospital group by name,hospitalid,hospitalname