MySQL GUI Tools
Sadly, you can't find these in the Ubuntu Software Centre in later versions of Ubuntu any more. This is because these two pieces of software have reached their end-of-life, and are no longer supported.
MySQL Workbench is probably the most complete tool, but a bit sluggish according to me.
I prefer "MySQL Query browser" and "MySQL Administrator". These two can do all basic stuff, and are very user friendly.
I like Emma. Emma is an open source project that isn't developed by Oracle.
I use a free tool Valentina Studio, is FREE, works on 32/64 bit Linux, Windows and Mac OS X. Is the best way to transform your data into meaningful information; create, administer, query and explore Valentina DB, MySQL, Postgre and SQLite databases http://www.valentina-db.com/en/valentina-studio-overview