题解 | #查询所有投递用户user_id并去重#
查询所有投递用户user_id并去重
https://www.nowcoder.com/practice/642c34192f6345f0b365e71f69ced726
select distinct user_id from deliver_record
通过对user_id列添加distinct关键字实现去重
查询所有投递用户user_id并去重
https://www.nowcoder.com/practice/642c34192f6345f0b365e71f69ced726
select distinct user_id from deliver_record
通过对user_id列添加distinct关键字实现去重
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