How to add query in PhpMyAdmin for upgrade?

[AngelsWin.com]

Does anyone know how to use PhpMyAdmin? I need to manually add this query per Invision Support. Never used it before, so any help would be much appreciated. 

Manual Action Required

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Some changes need to be made to your database. Because this affects a very large table, doing this automatically may time out. Therefore, it is recommended that you make these changes by manually running the queries listed below through the command line on your MySQL server.

ALTER TABLE `ips__core_moderator_logs` ADD KEY `member_id` (`member_id`);

[Nathan Explosion]

Open PHPMyAdmin.

Select your database.

Click the SQL tab

Enter and run the query.

And then expect it to fail because there is no table called "ips__core_moderator_logs"....so get that confirmed by the person who provided it to you.