How do the tables relate?

The connection to the MySQL database con has already been created for you. tables, a list containing the three tables as data frames that you've created in the previous exercise, is also available.

If you have a closer look at these tables, you'll see that the tweats table, for example, contains a column user_id. The ids in the column refer to the users that have posted the tweat. Similarly, the comments contain both a user_id and a tweat_id column. It specifies which user posted a comment on which tweat.

With this new knowledge, can you tell who posted the tweat on which somebody commented "awesome! thanks!" (comment 1012)?

Possible Answers

The user with id 1, so Kate.
There is not enough information to solve this.
The user with id 4, so Thomas.
The user with user_id 5, so Oliver.

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Exercise

How do the tables relate?

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Possible Answers