Debugger for MySQL: Expression Evaluator
Debugger for MySQL allows you to evaluate any expression when code execution is paused or a breakpoint is hit. To do that, use the “Run -> Evaluate” command of the main menu (or press the Alt+F7 key combination) and type the necessary expression or paste a code fragment. Don’t forget that the expression will be evaluated against the current execution context.
The latest version 18.104.22.1684 has been released on April 21, 2017
"...Aptly named “Debugger for MySQL”, I found this inexpensive tool to be quite easy to get the hang of, since it looks and behaves like most programming debugging environments."
"...Debugger for MySQL is a prime example of a tool that does one thing and does it well."