mysq對數據的l查詢，增長，修改和刪除sql語句

sql查詢語句： select * from student where sname like '%李%' and sgroup>55 and sgroup<80 sql插入語句： insert into student(sname,sage,sgroup,sex,class,number,location)  values('李玉',20,88,'女','信管一班','湖南常德','135345

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