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Asked: 2026-05-13T13:35:22+00:00

I am trying to write a query that will return only the most recent

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I am trying to write a query that will return only the most recent results. The table I am pulling information from has no uniqiue columns, and contains information on rate changes so for any particular client there can be several rate changes – I only want the most recent rate change for each client.

The structure is:

mrmatter VARCHAR(14)
mrtk VARCHAR(14)
mreffdate DATETIME
mrtitle VARCHAR(100)
mrrate INT
mrdevper INT

Some sample data is:

mrmatter         mrtk      mreffdate                  mrtitle  mrrate   mrdevper
184-00111        0005      2001-03-19 00:00:00.000    !        250      NULL
184-00111        0259      2001-03-19 00:00:00.000    !        220      NULL
184-00111        9210      2001-03-19 00:00:00.000    !        220      NULL
184-00111        0005      2007-07-01 00:00:00.000    !        NULL     NULL

From the data above you can see there is two mrtk (0005), from these results it should only return three instead of the four rows.

The query isnt just on mrtk, instead of mrtk there could be a mrtitle in which case I would need to find the most recent date, when there is multiples.

I have tried the following query, it returns the results sorted in newest to oldest, but it returns four rows (two 0005) instead of only the three. I have tried different ways of doing the same query but it all returns the same results.

SELECT mrmatter,mrtk,mrrate,MAX(mreffdate) AS 'MostRecent'
FROM mexrate
WHERE mrmatter='184866-00111'
GROUP BY mrmatter,mrtk,mrrate

Any assistance that can be provided would be greatly appreciated.

UPDATE:
The mrrate column can contain nulls, and the nulls can be the most recent entry. What I am after is the most recent entry for the same mrmatter AND (mrtk OR mrtitle).

Some more sample data is:

mrmatter      mrtk               mrtk     mrrate   mreffdate
100626-01406    Senior Assoc    !   235.000 2006-01-25 00:00:00.000
100626-01406    Solicitor   !   235.000 2006-01-25 00:00:00.000
100626-01407    Associate            !  265.000 2006-01-30 00:00:00.000
100626-01407    Associate            !  276.000 2007-07-01 00:00:00.000
100626-01407    Partner          !  265.000 2006-01-30 00:00:00.000
100626-01407    Partner          !  276.000 2007-07-01 00:00:00.000
100626-01407    Senior Assoc    !   265.000 2006-01-30 00:00:00.000
100626-01407    Senior Assoc    !   276.000 2007-07-01 00:00:00.000

Matt

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1 Answer

  1. Editorial Team

    I was able to achieve what I was after by using this query:

    SELECT t1.mrmatter,t2.mrtk,t1.mrrate,t2.MostRecent
FROM mexrate t1
INNER JOIN
(
    SELECT DISTINCT(mrtk),MAX(mreffdate) AS MostRecent
    FROM mexrate
    WHERE mrmatter='184866-00111'    
    GROUP BY mrtk
) t2 ON t1.mrtk=t2.mrtk AND t1.mreffdate=t2.MostRecent
WHERE mrmatter='184866-00111'

    Thanks everyone for your assistance with this problem, it is, as always, greatly appreciated.

    Matt

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