(徐传松)giser-chzu

摘要： CREATE TABLE Student(SNO INT PRIMARY KEY,SNAME CHAR(8) UNIQUE,SEX CHAR(2),AGE INT,DEPTNO INT); CREATE TABLE Course(CNO INT,CNAME CHAR(20) NOT NULL,TNO INT,CREDIT INT,PRIMARY KEY(CNO,TNO)); create table Sc(SNO INT,CNO INT,GRADE INT,PRIMARY KEY(SNO,CNO)); create table Teacher(TNO INT PRIMARY KEY,TNAME 阅读全文