CREATE DATABASE 数据库名;
CREATE TABLE student2(
sno VARCHAR(20) NOT NULL PRIMARY KEY COMMENT"学号",sname VARCHAR(20) NOT NULL COMMENT"学生姓名",ssex VARCHAR(20) NOT NULL COMMENT"学生性别",sbirthday datetime COMMENT"学生出生年月",class VARCHAR(20) COMMENT"学生所在班级"); CREATE TABLE Score2(Sno VARCHAR(20) NOT NULL COMMENT"学号（外码）",Cno VARCHAR(20) NOT NULL COMMENT"课程号（外码）",Degree DECIMAL(4,1) COMMENT"成绩",constraint sno FOREIGN KEY(sno) REFERENCES student2(sno),constraint Cno FOREIGN KEY(Cno) REFERENCES Course(Cno)); CREATE TABLE Teacher(Tno VARCHAR(20) NOT NULL PRIMARY KEY COMMENT"教工编号（主码）",Tname VARCHAR(20) NOT NULL COMMENT"教工姓名",Tsex VARCHAR(20) NOT NULL COMMENT"教工性别",Tbirthday datetime COMMENT"教工出生年月",Prof VARCHAR(20) COMMENT"职称",Depart VARCHAR(50) NOT NULL COMMENT"教工所在部门",constraint Tno unique(Tno)); #constraint Tno FOREIGN KEY(Tno) REFERENCES test.Teacher(Tno)/test.是库的意思CREATE TABLE Course(Cno VARCHAR(20) NOT NULL PRIMARY KEY COMMENT"课程号（主码）",Cname VARCHAR(20) NOT NULL COMMENT"课程名称",Tno VARCHAR(20) NOT NULL COMMENT"教工编号（外码）",constraint Tno FOREIGN KEY(Tno) REFERENCES Teacher(Tno));#以上四个表的运行顺序是1342
#以下是表的数据
#Student表数据
INSERT INTO student2 values(108,"曾华","男",19770901,95033);INSERT INTO student2 values(105,"匡明","男",19751002,95031);INSERT INTO student2 values(107,"王丽","女",19760123,95033);INSERT INTO student2 values(101,"李军","男",19760220,95033);INSERT INTO student2 values(109,"王芳","女",19750210,95031);INSERT INTO student2 values(103,"陆君","男",19740603,95031);#Course表数据INSERT INTO course values ("3-105","计算机导论",825);INSERT INTO course values ("3-245","操作系统",804);INSERT INTO course values ("6-166","数字电路",856);INSERT INTO course values ("9-888","高等数学",831);#Score表数据INSERT INTO score2 values(103,"3-245",86 );INSERT INTO score2 values(105,"3-245",75 );INSERT INTO score2 values(109,"3-245",68 );INSERT INTO score2 values(103,"3-105",92 );INSERT INTO score2 values(105,"3-105",88 );INSERT INTO score2 values(109,"3-105",76 );INSERT INTO score2 values(101,"3-105",64 );INSERT INTO score2 values(107,"3-105",91 );INSERT INTO score2 values(108,"3-105",78 );INSERT INTO score2 values(101,"6-166",85 );INSERT INTO score2 values(107,"6-166",79 );INSERT INTO score2 values(108,"6-166",81 );#Teacher表数据
INSERT INTO teacher values(804,"李诚","男",19581202,"副教授","计算机系");INSERT INTO teacher values(856,"张旭","男",19690312,"讲师","电子工程系");INSERT INTO teacher values(825,"王萍","女",19720505,"助教","计算机系");INSERT INTO teacher values(831,"刘冰","女",19770814,"助教","电子工程系"); #以上四个表的数据运行顺序是1423