SQL>
SQL> SELECT 2 + 3 * 4 AS "2+3*4",
2 (2 + 3) * 4 AS "(2+3)*4",
3 6 / 2 * 3 AS "6/2*3",
4 6 / (2 * 3) AS "6/(2*3)" from dual;
2+3*4 (2+3)*4 6/2*3 6/(2*3)
---------- ---------- ---------- ----------
14 20 9 1