gSqlClient is a Python plugin for Gedit that turns it into a lightweight SQL client, currently it supports MySQL, PostgreSQL, SQLite and SQLServer databases. You can examine queries resultsets on a grid, run any SQL file as a script or export resultsets as SQL, XML or CSV, taking advantage of Gedit as SQL editor.
This is an extension that gives you a classic style desktop. What it basically does is: Move the panel to the bottom of the screen and the message area to the top. Disable the hot corners feature by default. Hide the accessibility icon by default. Make the menus open to top. Fix the switch backward feature (ALT+SHIFT+TAB) for GnomeShell versions 3.0.2 or lower.