<p>Just place some SQL on in the box and save it as a report. You can save multiple reports and they will be listed on the Admin Menu so you can quickly run them again anytime with just one click. You can place your reports on the User’s Dashboard based on Roles. You can also put a report on a Page or Post using a shortcode like [SQLREPORT name=”My Report” style=”padding: 6px;” /]</p>
<p>There is also an shortcode for the wpdb::get_var function that you can use to display a single value from your database. For example, this will display the number of users on your site:<br />
[sqlgetvar]SELECT COUNT(*) FROM wp_users[/sqlgetvar]<br />
Note: because of a known exploit in the WordPress shortcode functionality it is required that an admin user create an SQL Report with the exact query that will be used in the sqlgetvar shotcode, otherwise any subscriber could white their own shortcode query.</p>
<p>If you want to include an “Export to CSV” button on your page or post then use the additional shortcode [SQLEXPORTCSV] once on any page or post that contains a report you want visitors to be able to download. Thanks to @loristictok and @rob66bnu for posting the suggestion with the JavaScript that I used to make this new Shortcode.<br />
Note: Adding this shortcode to the just one time will insert the “Export to CSV” button at the top of every HTML Table on the page.</p>
<h4>Automatic Database Backups</h4>
<p>Your database can be automatically saved and archived every hour and/or every day, and backups can be emailed to the address you specify. You can also restore the data to your WP DB or an external DB, which makes copying your database to another server and easy task.</p>


EZ SQL Reports Shortcode Widget and DB Backup

Create and save SQL Reports in your WP Admin and place them on pages and posts with a shortcode. Keep your database safe with automatic backups.

Guaven Labs

<p>The plugin can create beautiful charts based on your SQL queries, then you can use those charts in any part of your website.<br />
You can use both native wp and non-wp mysql tables in your queries.</p>
<h3>Pie chart, Donut chart, Line chart, Bar chart, Column chart, Area chart</h3>
<h4>How to use</h4>
<ol>
<li>
<p>Give any name to your report.</p>
</li>
<li>
<p>Use our preinstalled chart or create new one yourself: choose desired chart type, type sql query,<br />
enter field names, labels and then press to Publish/Update</p>
</li>
<li>
<p>You can use multiple SQL queries too. Just split them by ; sign. You can also add shortcode argument to SQL query. For example if you<br />
type “select * from wp_posts where ID>{arg1}” then it you can pass arg1 value to the query with  [gvn_schart_2 id=”2″ arg1=”11″] shortcode.</p>
</li>
<li>
<p>After update/save you will see needed shortcode below there. You can use that shortcode anywhere in your website: in pages, posts, widgets etc.</p>
</li>
<li>
<p>Just check “Show table-view data below the graph” in order to get table-list view below each chart.</p>
</li>
<li>
<p>Using “Dynamic Filters” you can create dynamic variables inside SQL code. It also creates corresponding dynamic input form above each chart.</p>
</li>
</ol>
<h4>Dynamic filters</h4>
<p>Use this format: variable_name~default_value~variable_label~variable_type | variable_name~default_value~variable_label~variable_type etc.</p>
<ul>
<li>variable_name – any single name you want.</li>
<li>default_value – default value when no any variable chosen by a user</li>
<li>variable_label – Label which would be visible at a form above the chart</li>
<li>variable_type – number, text or date</li>
<li>~ is a separator between variable elements.</li>
<li>| is a separator between variables</li>
</ul>
<p>For example if to put</p>
<p>limit_tag~10~Count~number | post_date_tag~2010-07-05 17:25:18~Date Published~date,</p>
<p>then you can use this SQL code</p>
<p>select * from wp_posts where post_date<{post_date_tag} limit {limit_tag}</p>
<p>in SQL CODE field.<br />
{post_date_tag} and {limit_tag} would be replaced with dynamic variables.</p>
<p>So, the plugin will automatically recognize it and put corresponding selectboxes above the chart.</p>
<h4>Website</h4>
<p><a href="https://guaven.com/my-sql-charts/" rel="nofollow ugc">https://guaven.com/my-sql-charts/</a></p>
<h4>Documentation</h4>
<p><a href="https://guaven.com/my-sql-charts/#docs" rel="nofollow ugc">https://guaven.com/my-sql-charts/#docs</a></p>
<h4>Bug Submission and Forum Support</h4>
<p><a href="https://guaven.com/contact/solution-request/" rel="nofollow ugc">Contact Page</a></p>
<h4>Please Vote if you liked our plugin</h4>
<p>Your votes really helps us. Thanks.</p>
<h3>Available Filters</h3>
<p>apply_filters( ‘guaven_sqlcharts_table_empty_cell’);</p>
<p>apply_filters(‘guaven_sqlcharts_pre_print_vars’);</p>
<p>apply_filters( ‘guaven_sqlcharts_final_output’);</p>
<p>apply_filters(‘guaven_sqlcharts_rendered_sql’);</p>


SQL Chart Builder

Unfortunately, this plugin is only useful for very specific use-cases, because it supports ONLY two database fields (i.e. X and Y axis, which almost never makes sense for the supported pie chart type but anyway). The external MySQL connector works well, so that part is great, but the shortcode doesn't output the charts and the "preview" doesn't honor the width and height settings. So, this could have been great, with just a little more love and attention. Ah well.

I had such high hopes :(

Turn Your SQL Queries to Beautiful Dynamic Charts- Pie, Line, Area, Donut, Bar Charts with date/input filters.

EZ SQL Reports Shortcode Widget and DB Backup vs SQL Chart Builder