EDIT: this article is out of date, you can check the official Keira3 website for more information.
The creators of Keira2 have recently announced that they are working on a new database editor application for World of Warcraft. This time it’s a Deskop application, and it does not only generate your SQL queries, but allows you to execute them directly into your DB.
A new cross-platform Database Editor
Keira3 is a modern DB editor for WoW 3.3.5, tailored for AzerothCore and available for Windows, Linux and macOS.
With Keira3 you don’t have to know the SQL language in order to change contents: it will generate the SQL queries automatically for you. The SQL code will be displayed, so you can learn, and then you can copy or execute it directly to your database.