SQL>desc test;
Name Null? Type
———————- ———– —————
ENAME VARCHAR2(20) SALARY NUMBER

[i]SQL>rename test to test1;
Table renamed
[ii]SQL>create table test2 (id varchar2(20));
Table created
[iii]SQL>create table test as(select test1.ename,test2.id,test1.salary from test1,test2);
Table created
…………………………………………………………………………….
SQL>desc test;
Name Null? Type
—————————————– ——– ————–
ENAME VARCHAR2(20)
ID VARCHAR2(20)
SALARY NUMBER