Chris M.

The Debug Bar Query Tracer plugin backtraces all calls to <code>WPDB::query()</code> and determines:
<ul>
<li>which plugin caused that database query (it ignores all queries that are a part of normal WordPress activity), and</li>
<li>the function chain that led to that query. </li>
</ul>
It then displays that information on an additional panel in the <a href="https://wordpress.org/extend/plugins/debug-bar/" rel="ugc">Debug Bar</a> 
plugin (which is required).

Debug Bar Query Tracer

A Debug Bar plugin that lets you trace what plugins are causing database queries.

shawfactor

This plugin allows you to run sql select statements and csv files which are then emailed out to a configurable list of email addresses. This is very useful for backing up your wp database or alternatively generating daily reporting from your website.
Check out <a href="http://lhero.org/plugins/lh-backup/" rel="nofollow ugc">our documentation</a> for more information.
Features:
<ul>
<li>To be added</li>
</ul>

LH Backup

Have WordPress automatically create email backups of tables on your website and send them to an email address.

Debug Bar Query Tracer vs LH Backup