Which one is the right answer?

Question

SELECT LPAD(salary,10,*)
FROM EMP
WHERE EMP_ID = 101;
Thanks everybody for your reply. well without '*' its always going to be an error...should've seen it earlier. Sorry for wasting your time. I am still trying to learn pl/sql and found this sample question somewhere on the net.
I have a new question:
Can we delete a row from a table if the table is referenced by a foreign key in another table but the second table doesn't hold any relevant data for that row?
Thanks for your time.

Answer 1

I know that trying these things by oneself is really, really difficult. It is much easier to ask on the forums or on the internet.
So I will provide you with a console session.
SQL> connect test/test
Connected.
SQL> create table emp ( emp_id number, salary number);
Table created.
SQL> insert into emp values (101, 17000);
1 row created.
SQL> commit;
Commit complete.
SQL> SELECT LPAD(salary,10,*)
   2  FROM EMP
   3  WHERE EMP_ID = 101;
SELECT LPAD(salary,10,*)
ERROR at line 1:
ORA-00936: missing expression
SQL> 1
  1* SELECT LPAD(salary,10,*)
SQL> c/*/'*'/
  1* SELECT LPAD(salary,10,'*')
SQL> l
  1  SELECT LPAD(salary,10,'*')
  2  FROM EMP
  3* WHERE EMP_ID = 101
SQL> /
LPAD(SALARY,10,'*')
*****17000Based on the above, you need to make up your own mind as to the correct answer.