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<td >Qt 5.9</td><td >Qt SQL</td></tr></table><table class="buildversion"><tr>
<td id="buildversion" width="100%" align="right">Qt 5.9.4 Reference Documentation</td>
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<li class="level1"><a href="#getting-started">Getting Started</a></li>
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<h1 class="title">Qt SQL</h1>
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<p>Qt SQL is an essential module which provides support for SQL databases. Qt SQL's APIs are divided into different layers:</p>
<ul>
<li>Driver layer</li>
<li>SQL API layer</li>
<li>User interface layer</li>
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<p>The <a href="sql-programming.html">SQL Programming</a> guide contains information about development using Qt SQL.</p>
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<h2 id="getting-started">Getting Started</h2>
<p>To enable Qt SQL in a project, add this directive into the C++ files:</p>
<pre class="cpp">
<span class="preprocessor">#include <QtSql></span>
</pre>
<p>To link against the Qt SQL module, add this line to the project file:</p>
<pre class="cpp">
QT <span class="operator">+</span><span class="operator">=</span> sql
</pre>
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<h2 id="licenses-and-attributions">Licenses and Attributions</h2>
<p>Qt SQL is available under commercial licenses from The Qt Company. In addition, it is available under the GNU Lesser General Public License, version 3, or the GNU General Public License, version 2. See Qt Licensing for further details.</p>
<p>Furthermore Qt SQL potentially contains third party modules under following permissive licenses:</p>
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<tr class="odd topAlign"><td class="tblName"><p><a href="qtsql-attribution-sqlite.html">SQLite</a></p></td><td class="tblDescr"><p>Public Domain</p></td></tr>
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<h2 id="related-information">Related Information</h2>
<p>These are links to the API reference materials and related pages.</p>
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<li><a href="qtsql-module.html">C++ Classes</a></li>
<li>SQL Examples</li>
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their respective owners.<br> The documentation provided herein is licensed under the terms of the <a href="http://www.gnu.org/licenses/fdl.html">GNU Free Documentation License version 1.3</a> as published by the Free Software Foundation.<br> Qt and respective logos are trademarks of The Qt Company Ltd. in Finland and/or other countries worldwide. All other trademarks are property
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