摘要: 本文为牛客网SQL入门篇题目的题解,刷题地址为牛客题霸-SQL入门篇 SQL1 查询所有列 SELECT * FROM user_profile; #SQL2 查询多列 SELECT device_id, gender, age, university FROM user_profile; SQL3 阅读全文
posted @ 2022-05-25 22:10 呵呵233 阅读(75) 评论(0) 推荐(0) 编辑