shawfactor

This plugin logs all wordpress queries in the current page request as a html comment at the end of your output.
It only does so when the get variable lh_log_queries is set. That variable has three settings. 
1. queries: this logs queries only 
2. hooks: this logs hooks only 
3. both: this logs both hooks and filters
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LH Log Queries and hooks

Decisions not options for query and hook logging

xuxu.fr

Log WordPress MySQL queries in csv file (and log file). Useful when you need to improve the performance or debug something.
You can contact me :
<ul>
<li>My blog: https://xuxu.fr/contact</li>
<li>My website : https://www.xuan-nguyen.fr</li>
<li>My Twitter account: https://twitter.com/xuxu</li>
</ul>

SQLog

Log WordPress MySQL queries in csv file (and log file). Useful when you need to improve the performance or debug something.

LH Log Queries and hooks vs SQLog