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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