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Editorial Team
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Asked: 2026-06-08T08:35:07+00:00

I need to write a sql statment to get a WPM count for each

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I need to write a sql statment to get a WPM count for each day in my table. It will have
multiple entries for some days; I just need the highest WPM. Also, excluding null entries.

The data set should look like:
Date_completed, Max_WPM
date here, wpm
date here, wpm

SELECT 
       DISTINCT A.DATE_COMPLETED
            ,A.WPM Max_WPM
FROM KEYBOARD_LEARNING A

I am trying to filter where only distinct days return in the result set for this table. But the above query isn’t working. How can I return just distinct dates with the WPM?

DATE_completed    MAX_WPM
--------------------------     ---------------
7/12/2012                ...
7/12/2012                ....
7/12/2012
7/22/2012
7/6/2012
7/12/2012
7/12/2012
7/6/2012
7/12/2012
7/12/2012
7/6/2012
7/6/2012
6/13/2012
7/12/2012
7/12/2012
7/16/2012
6/6/2012
7/6/2012
7/6/2012
6/12/2012
6/13/2012
7/6/2012
7/6/2012
7/6/2012
7/12/2012
6/13/2012
7/4/2012
6/14/2012
7/6/2012
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1 Answer

  1. Editorial Team

    It sounds like you want

    SELECT A.DATE_COMPLETED
      ,MAX(A.WPM) Max_WPM
  FROM KEYBOARD_LEARNING A
 WHERE a.wpm IS NOT NULL
 GROUP BY a.date_completed

    This assumes that none of the DATE_COMPLETED values has a time component. If it does, you’d need to TRUNC the date

    SELECT TRUNC(A.DATE_COMPLETED) date_completed
      ,MAX(A.WPM) Max_WPM
  FROM KEYBOARD_LEARNING A
 WHERE a.wpm IS NOT NULL
 GROUP BY TRUNC(a.date_completed)
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