TST: SYS>
TST: SYS> * from emp;
TST: SYS> * from ;
TST: SYS> * from
TST: SYS> * from emp where empno=7128;
TST: SYS> * from emp a, dept b where a.deptno = b.deptno;
TST: SYS> * from emp;
TST: SYS> /
from emp
*
ERROR at line 1:
ORA-00900: invalid SQL statement


TST: SYS> l
1 from emp
2 from emp a, dept b where a.deptno = b.deptno
3 from emp where empno=7128
4 from
5 from
6* from emp

TST: SYS>
Now, what is your conclusion?

HTH