题解 | #给出排名为奇数行的first_name#
给出employees表中排名为奇数行的first_name
https://www.nowcoder.com/practice/e3cf1171f6cc426bac85fd4ffa786594
select first_name
from (
select emp_no,first_name,row_number() over(order by first_name) rn
from employees
)a
where rn%2=1
order by emp_no
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