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<li class="toctree-l1 current"><a class="reference internal" href="index.html">Database configuration</a><ul class="current">
<li class="toctree-l2 current"><a class="current reference internal" href="">Converting database type</a><ul>
<li class="toctree-l3"><a class="reference internal" href="#run-the-conversion">Run the conversion</a></li>
<li class="toctree-l3"><a class="reference internal" href="#unconvertible-tables">Unconvertible tables</a></li>
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  <div class="section" id="converting-database-type">
<h1>Converting database type<a class="headerlink" href="#converting-database-type" title="Permalink to this headline">¶</a></h1>
<p>You can convert a SQLite database to a more performing MySQL, MariaDB or
PostgreSQL database with the Nextcloud command line tool. SQLite is good for
testing and simple single-user Nextcloud servers, but it does not scale for
multiple-user production users.</p>
<div class="section" id="run-the-conversion">
<h2>Run the conversion<a class="headerlink" href="#run-the-conversion" title="Permalink to this headline">¶</a></h2>
<p>First setup the new database, here called &#8220;new_db_name&#8221;.
In Nextcloud root folder call</p>
<div class="highlight-python"><div class="highlight"><pre>php occ db:convert-type [options] type username hostname database
</pre></div>
</div>
<p>The Options</p>
<ul class="simple">
<li><code class="docutils literal"><span class="pre">--port=&quot;3306&quot;</span></code>                       the database port (optional)</li>
<li><code class="docutils literal"><span class="pre">--password=&quot;mysql_user_password&quot;</span></code>    password for the new database. If omitted the tool will ask you (optional)</li>
<li><code class="docutils literal"><span class="pre">--clear-schema</span></code>                      clear schema (optional)</li>
<li><code class="docutils literal"><span class="pre">--all-apps</span></code>                          by default, tables for enabled apps are converted, use to convert also tables of deactivated apps (optional)</li>
</ul>
<p><em>Note:</em> The converter searches for apps in your configured app folders and uses
the schema definitions in the apps to create the new table. So tables of removed
apps will not be converted even with option <code class="docutils literal"><span class="pre">--all-apps</span></code></p>
<p>For example</p>
<div class="highlight-python"><div class="highlight"><pre>php occ db:convert-type --all-apps mysql oc_mysql_user 127.0.0.1 new_db_name
</pre></div>
</div>
<p>To successfully proceed with the conversion, you must type <code class="docutils literal"><span class="pre">yes</span></code> when prompted
with the question <code class="docutils literal"><span class="pre">Continue</span> <span class="pre">with</span> <span class="pre">the</span> <span class="pre">conversion?</span></code></p>
<p>On success the converter will automatically configure the new database in your
Nextcloud config <code class="docutils literal"><span class="pre">config.php</span></code>.</p>
</div>
<div class="section" id="unconvertible-tables">
<h2>Unconvertible tables<a class="headerlink" href="#unconvertible-tables" title="Permalink to this headline">¶</a></h2>
<p>If you updated your Nextcloud installation there might exist old tables, which
are not used anymore. The converter will tell you which ones.</p>
<div class="highlight-python"><div class="highlight"><pre>The following tables will not be converted:
oc_permissions
...
</pre></div>
</div>
<p>You can ignore these tables.
Here is a list of known old tables:</p>
<ul class="simple">
<li>oc_calendar_calendars</li>
<li>oc_calendar_objects</li>
<li>oc_calendar_share_calendar</li>
<li>oc_calendar_share_event</li>
<li>oc_fscache</li>
<li>oc_log</li>
<li>oc_media_albums</li>
<li>oc_media_artists</li>
<li>oc_media_sessions</li>
<li>oc_media_songs</li>
<li>oc_media_users</li>
<li>oc_permissions</li>
<li>oc_queuedtasks</li>
<li>oc_sharing</li>
</ul>
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