데이터베이스

create table emp01(

empno number(4),

ename varchar2(20),

sal number(7,2));

desc emp01;

create table dept01(

deptno number(2),

dname varchar2(14),

loc varchar2(13));

create table emp02

as select * from emp;

select * from emp02;

create table dept02

as select * from dept where 2>3;

select * from dept02;

select table_name

from user_tables;

insert into  dapt02(DEPTNO,DNAME,LOC)

values (dd,aa,qq);