Oracle - max date filter issue

Wilder1626
Wilder1626 used Ask the Experts™
on
Hello all

I have this query bellow that pulls the Max date.

But when i query, i dont get the max date.

  SELECT   DISTINCT A.CARRIER_ID,
                    MAX (A.EFFECTIVE),
                    A.TRLR_TYPE_ID,
                    A.CURRENT_NUM_VEHICLES,
                    L.NAME
    FROM   TL_RESOURCE_TRLR A, CARRIER_EQUIP B,LANE L
   WHERE   A.CARRIER_ID = B.CARRIER_ID(+)
           AND A.TRLR_TYPE_ID = B.TRLR_TYPE_ID(+)
           AND A.LANE_ID = L.ID
           AND B.CARRIER_ID IS NULL -- EXCLUDE ROWS ADDED BECAUSE  OF THE OUTER JOIN
GROUP BY   a.carrier_id, a.trlr_type_id, current_num_vehicles, L.NAME
ORDER BY   A.CARRIER_ID ASC;

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Example:

From resources table:
date in date

From Query result:
Date in query result
How can i fix that please?

Thanks again for your help
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awking00Information Technology Specialist
Commented:
>>AND B.CARRIER_ID IS NULL -- EXCLUDE ROWS ADDED BECAUSE  OF THE OUTER JOIN<<
I'm not sure what your comment means in that you're trying to join on A.CARRIER_ID = B.CARRIER_ID. Could you provide some sample relevant data for the two tables and what you expect as results?
Oh sure.

Here you will see the resources extract and also the resources query result.

Thanks again
resources-TABLE.xls
resources-result.xls
Database Administrator
Commented:
This query looks very strange to me.  You have a combination of "distinct" plus "max" on a.effective.  Are you sure that that will give you the result you want?  Then, you have an outer join, plus a "where" clause that restricts the rows to only those that are outer joined, but you have a comment that indicates you want the outer-joined rows to be excluded.
Hello guys,

Thanks for your help and sorry for the delay. I will work this out a little bit more.

markgeerm you are right.

I will re open another topic when i'm done thinking about all this.

Thanks again

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