oracle 如何向上取正，或向下取正？在线等ing?????

oracle 如何向上取正，或向下取正？在线等ing?????
---------------------------------------------------------------

SQL> select ceil(1234.89) from dual;

CEIL(1234.89)
-------------
1235

SQL>
SQL> select trunc(1234.89) from dual;

TRUNC(1234.89)
--------------
1234

SQL>