题目
成绩不重复，查询选修「张三」老师所授课程的学生中，成绩最高的学生信息及其成绩
测试用数据表
1. 学生表 Student
1 2 3 4 5 6 7 8 9 10 11 12 13 14 | --SId 学生编号, Sname 学生姓名, Sage 出生年月, Ssex 学生性别create table Student (SId varchar(10), Sname varchar(10), Sage datetime, Ssex varchar(10));insert into Student values('01' , '赵雷' , '1990-01-01' , '男');insert into Student values('02' , '钱电' , '1990-12-21' , '男');insert into Student values('03' , '孙风' , '1990-12-20' , '男');insert into Student values('04' , '李云' , '1990-12-06' , '男');insert into Student values('05' , '周梅' , '1991-12-01' , '女');insert into Student values('06' , '吴兰' , '1992-01-01' , '女');insert into Student values('07' , '郑竹' , '1989-01-01' , '女');insert into Student values('09' , '张三' , '2017-12-20' , '女');insert into Student values('10' , '李四' , '2017-12-25' , '女');insert into Student values('11' , '李四' , '2012-06-06' , '女');insert into Student values('12' , '赵六' , '2013-06-13' , '女');insert into Student values('13' , '孙七' , '2014-06-01' , '女'); |
2. 课程表 Course
1 2 3 4 5 | --CId 课程编号, Cname 课程名称, TId 教师编号create table Course(CId varchar(10),Cname nvarchar(10),TId varchar(10))insert into Course values('01' , '语文' , '02')insert into Course values('02' , '数学' , '01')insert into Course values('03' , '英语' , '03') |
3. 教师表 Teacher
1 2 3 4 5 | --TId 教师编号, Tname 教师姓名create table Teacher(TId varchar(10),Tname varchar(10))insert into Teacher values('01' , '张三')insert into Teacher values('02' , '李四')insert into Teacher values('03' , '王五') |
4. 成绩表 SC
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 | --SId 学生编号, CId 课程编号, score 分数create table SC(SId varchar(10),CId varchar(10),score decimal(18,1))insert into SC values('01' , '01' , 80)insert into SC values('01' , '02' , 90)insert into SC values('01' , '03' , 99)insert into SC values('02' , '01' , 70)insert into SC values('02' , '02' , 60)insert into SC values('02' , '03' , 80)insert into SC values('03' , '01' , 80)insert into SC values('03' , '02' , 80)insert into SC values('03' , '03' , 80)insert into SC values('04' , '01' , 50)insert into SC values('04' , '02' , 30)insert into SC values('04' , '03' , 20)insert into SC values('05' , '01' , 76)insert into SC values('05' , '02' , 87)insert into SC values('06' , '01' , 31)insert into SC values('06' , '03' , 34)insert into SC values('07' , '02' , 89)insert into SC values('07' , '03' , 98) |
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