When someone says, I want a programming language in which I need only say what I want done, give him a lollipop. Alan Perlis
The DUAL table is a special one-row, one-column table present by default in Oracle and other database installations. The sysdate returns the current date from the oracle database server.
SELECT sysdate from dual;
The to_char funcation format the date.
SELECT TO_CHAR(SYSDATE, 'MM-DD-YYYY HH24:MI:SS') "NOW" FROM DUAL;