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Editorial Team
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Asked: 2026-05-31T02:25:55+00:00

I need some advice… I have an application where users can do certain actions.

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I need some advice…
I have an application where users can do certain actions.
For example, users can have friends.
So…
Users can see his friends activity.
So how should I implement the activity log in the DB?
Should I have a new table?
Can I do some queries from multiple table and sort a joined result?

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1 Answer

  1. Editorial Team

    I suggest you create an activity_type table and a logs table.

    activity_type | id | name           | table
--------------+----+----------------+-------
                 1 | added friend   | tbl_users
                 2 | added comment  | tbl_comments
                 3 | added image    | tbl_images
                 4 | Updated dp     | NULL

    Now you can easily maintain logs using the following table

       logs_table | id | user | activity_type  | object_id | time_stamp
--------------+----+------+----------------+-----------+------------
                 1 | 15   | 1              | 5         | 2012-03-10 08:45:05
                 2 | 15   | 2              | 19        | 2012-03-10 08:46:05
                 3 | 15   | 3              | 84        | 2012-03-10 08:47:05
                 4 | 15   | 4              | NULL      | 2012-03-10 08:48:05

    User#15 added a new friend user#5 on 10th March.

    User#15 added a new comment#19 on 10th March.

    User#15 added a new image#84 on 10th March.

    User#15 changed his display picture on 10th March.

    UPDATE
    There may be activities where object_id doesn’t make sense like- updated display image, updated profile info etc. Here you can possibly store diff of text in a separate column.

    The same approach can be used for storing audit logs.

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