题解 | #查询结果去重#
查询结果去重
http://www.nowcoder.com/practice/82ebd89f12cf48efba0fecb392e193dd
第一种:distinct去重,返回的列礼物重复出现 #select distinct university from user_profile 第二种:group by 去重分组 select university from user_profile group by university
查询结果去重
http://www.nowcoder.com/practice/82ebd89f12cf48efba0fecb392e193dd
第一种:distinct去重,返回的列礼物重复出现 #select distinct university from user_profile 第二种:group by 去重分组 select university from user_profile group by university
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