摘要：
题目表结构：CREATE TABLE STUDENT(SNO VARCHAR(3) NOT NULL,SNAME VARCHAR(4) NOT NULL,SSEX VARCHAR(2) NOT NULL,SBIRTHDAY DATETIME,CLASS VARCHAR(5))goCREATE TABLE COURSE(CNO VARCHAR(5) NOT NULL,CNAME VARCHAR(10) NOT NULL,TNO VARCHAR(10) NOT NULL)goCREATE TABLE SCORE(SNO VARCHAR(3) NOT NULL,CNO VARCHAR(5) NOT 阅读全文
