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Editorial Team
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Asked: 2026-06-03T05:37:15+00:00

Situation: I have a database that contains sales records, each record has a ID

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Situation:

I have a database that contains sales records, each record has a ID (PK), ProductCode, Year, Month, SalesVolume.

As a user I will specify the year, so if I specify 1980, I will query the database for all the records that correspond to that year.

I am trying to create a query that will total the months SalesVolumes for the specified year, then pick the top 5 sales volume values.

What I have gathered so far is to somehow do the above, then to choose the top 5 sales volumes values, put them in descending order, and select the top 5, but that’s as far as I have got

Note in a year there will be SalesVolumes for multiple products:

ID,     Product Code, Year, Month, SalesVolume
23041   121           1980  1      21
23042   121           1980  2      960
23043   121           1980  3      939
23044   121           1980  4      927
23045   121           1980  5      931
23046   121           1980  6      950
23047   121           1980  7      975
23048   121           1980  8      994
23049   121           1980  9      994
23050   121           1980  10     968
23051   121           1980  11     918
23052   121           1980  12     854
23425   122           1980  1      1002
23426   122           1980  2      1032
23427   122           1980  3      1090
23428   122           1980  4      1062
23429   122           1980  5      1010
23430   122           1980  6      1103
23431   122           1980  7      1214
23432   122           1980  8      1122
23433   122           1980  9      1019
23434   122           1980  10     1181
23435   122           1980  11     1343
23436   122           1980  12     1180

Expected Output:

For 1980

Product Code, SalesVolume
121         , (total SalesVolume of the 12 months)
122         , (total SalesVolume of the 12 months)
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1 Answer

  1. Editorial Team

    Here’s what you can do – total up the sales for each item by for a given year, rank them, and then select the top 5 ranking items.

    SELECT *
FROM (
    SELECT "Product Code",
        SUM(SalesVolume) as total,
        RANK() OVER (ORDER BY SUM(SalesVolume) DESC) as rnk
    FROM YourTable
    WHERE Year = 1980
    GROUP BY "Product Code"
) A
WHERE rnk <= 5

    If you want to do select the top 5 per year for all years, you can do that too:

    SELECT *
FROM (
    SELECT Year,
        "Product Code",
        SUM(SalesVolume) as total,
        RANK() OVER (PARTITION BY Year ORDER BY SUM(SalesVolume) DESC) as rnk
    FROM YourTable
    GROUP BY Year, "Product Code"
) A
WHERE rnk <= 5
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