Problem with SQL Plus

I'm getting started with Oracle.
I've just successfully installed Oracle 11g. When I opened SQL plus, and tried typing a statement SELECT SYSDATE FROM dual, the answer display is : 2 .
Then i tried with SELECT 2*6 FROM dual, and it still appeared with 2.
I'm really confused.
Plz explain it to me. Thanks in advance.
Edited by: user13011143 on Apr 24, 2010 1:10 AM

Is this what you are seeing?
SQL> select sysdate from dual
2 If so put a semi-colon at the end and hit the Enter key.
SQL> select sysdate from dual
2 ;
SYSDATE
24-APR-2010 03:28:13
SQL>or more properly:
SQL> SELECT sysdate FROM dual;
SYSDATE
24-APR-2010 03:29:10
SQL> The semicolon is not optional.

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