When comparing Adminer vs QueryPie, the Slant community recommends QueryPie for most people. In the question“What are the best GUI tools for PostgreSQL on Windows?” QueryPie is ranked 7th while Adminer is ranked 13th.
Ranked in these QuestionsQuestion Ranking
Pro Supports more than MySQL
It supports several database management systems (Postgres, SQLite, Oracle, MS SQL and of course MySQL)
The installation and Adminer itself only requires a single PHP file. Once it's uploaded you can log in and start using it.
Has a great variety of themes which transfers pretty ugly application into a great looking one.
Pro Database views
Anyone who uses the views function will appreciate Adminer better. You can click on a view and edit to change the view. In phpMyAdmin, you can edit a view, but it's not easy or intuitive. SQL Buddy doesn't have any way of doing this.
Pro Multiple Query Tabs!
The multi-tab and multi-SQL-runs are great. It's always good to be able to compare results in one window instead of having to go through and re-run stuff.
Pro Fast Auto-complete
Pro Multiple Databases
They only support 2 at the moment (MySQL and MariaDB) but their social site says they'll be updating with more DBMSes in the near future which is pretty nice because I hate learning new GUIs~
Pro Clean and pretty UI/UX
The default color is dark and comfortable for the eyes.
Not sure about Linux but it works on Windows and Mac just fine!