题解 | #查询多列#
查询多列
http://www.nowcoder.com/practice/499b6d01eae342b2aaeaf4d0da61cab0
select device_id,gender,age,university from user_profile;
查询多列
http://www.nowcoder.com/practice/499b6d01eae342b2aaeaf4d0da61cab0
select device_id,gender,age,university from user_profile;
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