Rearrangement of Conditions (sensitive)

We have the following trouble with the arrangement of the condition within the WHERE part.

consider the following example:

test1

        c0| c1|

	9 |	0 |
	4 | 	1 |
	5 |	2 |

SQL> select c0/c1 from test1 where c1 <> 0 and c0/c1 < 3; ERROR:
ORA-01476: divisor is equal to zero

SQL> select c0/c1 from test1 where c0/c1 < 3 and c1 <> 0;

     C0/C1

       2.5

• End of Example ------------------------

Does Orcale ALWAYS handle the conditions from RIGHT TO LEFT ? Or does the optimiser sometimes rearrange them ? Does there exists an other possibility to enforce that the condition c1 <> 0 has to be considered first so that we don't get the division by zero error?

Thanks

-- 
Roman Gross				|
Informationssysteme			|
ETH-Zentrum				|  Phone:  +41 1 254 72 62
CH-8092 Zurich, Switzerland		|  E-Mail: gross_at_inf.ethz.ch