How Can I Order Results Within GROUP_CONCAT in MySQL?

Using ORDER BY Within GROUP_CONCAT to Order Results

In your MySQL table, where each row represents a client with multiple views and percentages, you've encountered an issue with GROUP_CONCAT returning unordered results. Your goal is to display the views in ascending order while grouping the data by client ID.

To achieve this, utilize the ORDER BY clause within the GROUP_CONCAT function. This syntax allows you to specify the sort order of the concatenated values. By using ORDER BY li.views ASC, you instruct MySQL to sort the views in ascending order.

Here's a revised query that incorporates this technique:

SELECT li.client_id,
  group_concat(li.views ORDER BY li.views ASC) AS views,
  group_concat(li.percentage ORDER BY li.views ASC) AS percentage
FROM li GROUP BY client_id

This query will produce the desired output, where the views column contains the views in ascending order for each client.

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