SQL文テスト

5490 ワード

Student(S#,Sname,Sage,Ssex)学生表S#:学号;Name:学生の名前;Age:学生の年齢;Sex:学生の性別
Course(C#,Cname,T#)カリキュラムC#,カリキュラム番号;Name:コース名;T#:教師番号
SC(S#,C#,score)成績表S#:学号;C#、カリキュラム番号;スコア:成績
Teacher(T#,Tname)教師表T#:教師番号;Name:教師の名前
1、「001」課程が「002」課程より成績が高いすべての学生の学号を照会する.
2、すべての授業を勉強していない学生の学号、名前を調べる.3、各科の成績が最も高い点と最も低い点を検索する:以下の形式で表示する:課程ID、最も高い点、最低点4、検索と「1002」号の学生が学ぶ課程は完全に同じ他の学生の学号と名前である;5、各科の成績上位3名の学生を調べる
一、select SC 1.`S#` from SC SC1 JOIN SC SC2 ON SC1.`S#`=SC2.`S#` WHERE SC1.`C#`='1' AND SC2.`C#`='2' AND SC1.Score > SC2.Score一、select Student.`S#` from (select `s#`,score from SC where `C#`='1') Student,(select `S#`,score from SC where `C#`='2') Course WHERE Student.`S#`=Course.`S#`二、select Student.`S#`,Student.`Name` from Student,SC where Student.`S#`=SC.`S#` group by Student.`S#`,Student.`Name`having count(`C#`)<(select count(*)from Course)三、select`C#`as'カリキュラムID',MAX(Score)as'最高点',MIN(Score)as'最低点'from SCグループby`C#`四、select distinct SC.`S#,Student.`Name` from SC JOIN Student ON SC.`S#`=Student.`S#` where SC.`S#` not in (select `S#` from sc where `C#` not in (select `C#` from sc where `S#`='2')) AND SC.`S#`<>2 group by SC.`S#` having count(*) = (select count(*) from sc where `S#`='2'); 五、SELECT a.`S#`'学生ID',a.`C#`'課程ID',a.Score'点数'FROM sc a WHERE(SELECT COUNT(`C#`)FROM sc WHERE`C`=a.`C#`AND a.Score

/*
Navicat MySQL Data Transfer

Source Server         : windows_mysql
Source Server Version : 50547
Source Host           : 127.0.0.1:3306
Source Database       : sql

Target Server Type    : MYSQL
Target Server Version : 50547
File Encoding         : 65001

Date: 2016-06-28 21:24:49
*/

SET FOREIGN_KEY_CHECKS=0;

-- ----------------------------
-- Table structure for course
-- ----------------------------
DROP TABLE IF EXISTS `course`;
CREATE TABLE `course` (
  `C#` int(11) NOT NULL AUTO_INCREMENT,
  `Name` varchar(255) DEFAULT NULL,
  `T#` varchar(255) DEFAULT NULL,
  PRIMARY KEY (`C#`)
) ENGINE=MyISAM AUTO_INCREMENT=6 DEFAULT CHARSET=gbk;

-- ----------------------------
-- Records of course
-- ----------------------------
INSERT INTO `course` VALUES ('1', ' ', '1');
INSERT INTO `course` VALUES ('2', ' ', '2');
INSERT INTO `course` VALUES ('3', ' ', '3');
INSERT INTO `course` VALUES ('4', ' ', '4');
INSERT INTO `course` VALUES ('5', 'PHP ', '5');

-- ----------------------------
-- Table structure for sc
-- ----------------------------
DROP TABLE IF EXISTS `sc`;
CREATE TABLE `sc` (
  `S#` int(11) DEFAULT NULL,
  `C#` int(11) DEFAULT NULL,
  `Score` int(255) DEFAULT NULL
) ENGINE=MyISAM AUTO_INCREMENT=9 DEFAULT CHARSET=gbk;

-- ----------------------------
-- Records of sc
-- ----------------------------
INSERT INTO `sc` VALUES ('1', '1', '50');
INSERT INTO `sc` VALUES ('2', '1', '123');
INSERT INTO `sc` VALUES ('1', '2', '26');
INSERT INTO `sc` VALUES ('2', '2', '5');
INSERT INTO `sc` VALUES ('5', '3', '23');
INSERT INTO `sc` VALUES ('6', '3', '34');
INSERT INTO `sc` VALUES ('7', '4', '56');
INSERT INTO `sc` VALUES ('2', '4', '78');
INSERT INTO `sc` VALUES ('1', '3', '56');
INSERT INTO `sc` VALUES ('1', '4', '123');
INSERT INTO `sc` VALUES ('2', '3', '12');

-- ----------------------------
-- Table structure for student
-- ----------------------------
DROP TABLE IF EXISTS `student`;
CREATE TABLE `student` (
  `S#` int(11) NOT NULL AUTO_INCREMENT,
  `Name` varchar(255) DEFAULT NULL,
  `Age` int(11) DEFAULT NULL,
  `Sex` varchar(255) DEFAULT NULL,
  PRIMARY KEY (`S#`)
) ENGINE=MyISAM AUTO_INCREMENT=9 DEFAULT CHARSET=gbk;

-- ----------------------------
-- Records of student
-- ----------------------------
INSERT INTO `student` VALUES ('1', ' ', '10', ' ');
INSERT INTO `student` VALUES ('2', ' ', '11', ' ');
INSERT INTO `student` VALUES ('3', ' ', '11', ' ');
INSERT INTO `student` VALUES ('4', ' ', '11', ' ');
INSERT INTO `student` VALUES ('5', ' ', '11', ' ');
INSERT INTO `student` VALUES ('6', ' ', '11', ' ');
INSERT INTO `student` VALUES ('7', ' ', '11', ' ');
INSERT INTO `student` VALUES ('8', ' ', '11', ' ');

-- ----------------------------
-- Table structure for teacher
-- ----------------------------
DROP TABLE IF EXISTS `teacher`;
CREATE TABLE `teacher` (
  `T#` int(11) NOT NULL AUTO_INCREMENT,
  `Name` varchar(255) DEFAULT NULL,
  PRIMARY KEY (`T#`)
) ENGINE=MyISAM AUTO_INCREMENT=6 DEFAULT CHARSET=gbk;

-- ----------------------------
-- Records of teacher
-- ----------------------------
INSERT INTO `teacher` VALUES ('1', ' ');
INSERT INTO `teacher` VALUES ('2', ' ');
INSERT INTO `teacher` VALUES ('3', ' ');
INSERT INTO `teacher` VALUES ('4', ' ');
INSERT INTO `teacher` VALUES ('5', ' ');

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