Oracle练习题(七)Oracle练习题(七)
Oracle练习题(七)(1) 创建表student(sno,sname,sage,ssex,address) 其中sno为主键,并使用序列自动生成sno。create table student(sno number(10),sname varchar2(10) not null ,sage number(3) not null,ssex varchar2(3) not null,address varchar2(20) not null,constraint pk_sno primary