qq_43490337的博客

CREATE DATABASE STUDENTDB GO USE STUDENTDB GO CREATE TABLE STUDENT ( SNO CHAR(10) PRIMARY KEY, SNAME CHAR(20) NOT NULL, SSEX CHAR(2) NOT NULL DEFAULT '男', SMAJOR CHAR(20) NOT NULL, SDEPT CHAR(20) NOT NULL, SAGE TINYINT, TEL CHAR(15), EMAIL VARCHAR(30), C.