How to Retrieve Corresponding Column Values with the Maximum Value in Each Category?

Retrieving Corresponding Column Values for Maximum Value Query

You're attempting to execute a query that retrieves the maximum video_id value for each video_category and the corresponding column values. However, you're encountering an issue where the query returns the first row instead of the row associated with the maximum video_id.

To address this challenge, an alternative solution is to utilize a subquery to identify the distinct maximum video_id for each video_category. By joining the original table with the subquery, you can effectively link each maximum video_id to its corresponding column values:

SELECT
   s.video_id
   ,s.video_category
   ,s.video_url
   ,s.video_date
   ,s.video_title
   ,s.short_description
FROM videos s
   JOIN (SELECT MAX(video_id) AS id FROM videos GROUP BY video_category) max
      ON s.video_id = max.id

This revised query employs an INNER JOIN, which preserves only the rows that satisfy the join condition. In this case, the join ensures that the rows in the main table (s) are matched to the rows in the subquery (max) based on the video_id equivalence.

By leveraging this approach, you can retrieve the maximum video_id for each category and the corresponding values for video_url, video_date, video_title, and short_description.

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