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---
layout: default
navPage: docs
heading: Database Integrity
breadcrumbs:
- Modules,/modules
- Database Integrity
next: Table Verification,/modules/database_integrity/table_verification/
categories: modules
tags: deprecated
---
{% include open_section.html nav='nav_database_integrity.html' selected='introduction' %}
<div class="alert alert-warning">
This module is now deprecated. If you're running 2.1.5 or later of the Form Tools
Core, use the <b><a href="{{site.baseurl}}/modules/system_check/">System Check</a></b>
module instead.
</div>
{% include screenshot.html item="i341.gif" %}
<p>
This module was written to help debug problems that arise with Form Tools. The
module provides you with a couple of quick, simple tests to run on your
database. This is well, well worth doing: in the very least to confirm that the
problems you're encountering are not due to a corrupt database.
</p>
<h3>The tests</h3>
<p>
The module offers two tests:
</p>
<ul>
<li><b><a href="table_verification/">Table Verification</a></b> - this
examines the structure of your Core and module tables.</li>
<li><b><a href="hook_verification/">Hook Verification</a></b> - this
checks to make sure the module hooks are all correct.</li>
</ul>
<h3>How could a database get corrupted?</h3>
<p>
This can happen in a number of different ways, but the most likely causes are:
</p>
<ul>
<li>Problems with upgrading. This can occur if the SQL updates in the upgrade script
fail to run properly, either to a bug in the code or a problem with the content that
was FTP'd to your server.</li>
<li>If someone manually edited your database.</li>
</ul>
<h3>Compatibility</h3>
<ul>
<li>This module supports all final releases of the Form Tools Core (at the time of
writing: 2.0.0-2.0.6, 2.1.0-2.1.4).</li>
<li>It <b>will not work</b> with early beta releases.</li>
</ul>
<p>
Any modules that have custom database tables may also use this module to test their
database integrity. I will be adding support for this module to all relevant modules.
</p>
{% include close_section.html %}