方法一:执行代码块
create table student2(id varchar2(20) primary key,name varchar2(20),birthdate date, age varchar2(10),phone varchar2(20),adress varchar2(32));create table student2(id varchar2(2
方法一:执行代码块
create table student2(id varchar2(20) primary key,name varchar2(20),birthdate date, age varchar2(10),phone varchar2(20),adress varchar2(32));create table student2(id varchar2(2