Write a query to change the format of date : to_char function
SELECT to_char(SYSDATE,'dd-mm-yyyy') FROM dual;
Output :
TO_CHAR(SY
26-04-1997
SELECT to_date('01-JUN-2002') FROM dual;
Output :
TO_DATE('
01-JUN-02
SELECT substr('ssit',2) FROM dual;
Output :
SUB
sit