No need to go out of joomla. Replace phpmyadmin with this component.
Has more features than phpmyadmin, the one I love:
In phpmyadmin "there is no way to change a field value for several rows at once. Adminer offers both relative and absolute modifications."
Really easy to install and set up.
For best viewing results, in settings, set CSSFile to adminer2.css
Excellent support: Didn't worked in my site, asked for support in their forum and they answered instantly... and they finally solved the error.