** SQL WHERE clause order

[A Joshi]

Hi,
   In a SQL statement I want a certain where clause to be done first. Is it enough to 
list it first as follows or do I (and can I) do something else to make it get checked 
first before other WHERE/AND clause are looked at. Thanks :
 
SELECT emp_id FROM emp
WHERE select_sen_emp_chk_first = 'Y'
AND  dept = :dept
AND  salary > :min_sal