Oracle SQL - filter records not used

Hello all

I have this SQL bellow that search for all TL_RATE used on LOAD and gives me a count on how many times they where used.

But i would like to do the opposite.

I would like to search all rates that was never used on a load. That, i really dont know what to start with.

Probably i just need to update the bellow SQL.

How can i do that?

Thanks again for your help.


Full SQL:

SELECT
    COUNT(DISTINCT BILL),
    LOAD.RATE_KEY,
    R.FROM_LOW_KEY_VALUE,
    R.FROM_HIGH_KEY_VALUE,
    R.FROM_COUNTRY,
    R.TO_LOW_KEY_VALUE,
    R.TO_HIGH_KEY_VALUE,
    R.TO_COUNTRY,
    LOAD.CARRIER_ID,
    TR.EFFECTIVE,
    TR.DATE_INVALID
FROM 
    LOAD, TL_RATE TR, LANE_RATE_NETWORK R
WHERE
    BEST_DEP > TO_DATE('20090830','YYYYMMDD')
    AND LOAD.RATE_KEY=TR.RATE_KEY
    AND TR.LANE_ID=R.ID
    GROUP BY LOAD.RATE_KEY,
    R.FROM_LOW_KEY_VALUE,
    R.FROM_HIGH_KEY_VALUE,
    R.FROM_COUNTRY,
    R.TO_LOW_KEY_VALUE,
    R.TO_HIGH_KEY_VALUE,
    R.TO_COUNTRY,
    LOAD.CARRIER_ID, 
    TR.EFFECTIVE,
    TR.DATE_INVALID
ORDER BY COUNT(DISTINCT BILL) DESC;