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<a class='edit-link' href="https://github.com/apache/ignite-3/tree/main/docs/_docs/sql/odbc/odbc-driver.adoc" target="_blank">Edit</a>
<h1>ODBC Driver</h1>
<div class="sect1">
<h2 id="overview">Overview</h2>
<div class="sectionbody">
<div class="paragraph">
<p>Apache Ignite 3 includes an ODBC driver that allows you both to select and to modify data stored in a distributed cache by using standard SQL queries and native ODBC API. ODBC driver uses your <a href="/docs/3.0.0-beta/clients/overview">client connection configuration</a>.</p>
</div>
<div class="paragraph">
<p>ODBC driver only provides thread-safety at the connections level. This means that you should not access the same connection from multiple threads without additional synchronization, though you can create separate connections for every thread and use them simultaneously.</p>
</div>
<div class="paragraph">
<p>The ODBC driver implements version 3.8 of the ODBC API. For detailed information on ODBC please refer to <a href="https://msdn.microsoft.com/en-us/library/ms714177.aspx">ODBC Programmer&#8217;s Reference</a>.</p>
</div>
</div>
</div>
<div class="sect1">
<h2 id="installing-odbc-driver">Installing ODBC Driver</h2>
<div class="sectionbody">
<div class="paragraph">
<p>To use ODBC driver, register it in your system so that your ODBC Driver Manager will be able to locate it.</p>
</div>
<div class="sect2">
<h3 id="installing-on-windows">Installing on Windows</h3>
<div class="admonitionblock note">
<table>
<tr>
<td class="icon">
<div class="title">Note</div>
</td>
<td class="content">
Microsoft Visual C++ 2017 Redistributable Package should be installed first.
</td>
</tr>
</table>
</div>
<div class="paragraph">
<p>Launch the provided installer and follow the instructions.</p>
</div>
</div>
<div class="sect2">
<h3 id="installing-on-linux">Installing on Linux</h3>
<div class="paragraph">
<p>To build and install ODBC driver on Linux, you need to first install
ODBC Driver Manager. The ODBC driver has been tested with <a href="http://www.unixodbc.org">UnixODBC</a>.</p>
</div>
<div class="sect3">
<h4 id="download-from-website">Download from website</h4>
<div class="paragraph">
<p>You can get the built rpm or deb package from the provided website. Then, install the package locally to use it.</p>
</div>
</div>
</div>
</div>
</div>
<div class="sect1">
<h2 id="supported-data-types">Supported Data Types</h2>
<div class="sectionbody">
<div class="paragraph">
<p>The following SQL data types are supported:</p>
</div>
<div class="ulist">
<ul>
<li>
<p><code>SQL_CHAR</code></p>
</li>
<li>
<p><code>SQL_VARCHAR</code></p>
</li>
<li>
<p><code>SQL_LONGVARCHAR</code></p>
</li>
<li>
<p><code>SQL_SMALLINT</code></p>
</li>
<li>
<p><code>SQL_INTEGER</code></p>
</li>
<li>
<p><code>SQL_FLOAT</code></p>
</li>
<li>
<p><code>SQL_DOUBLE</code></p>
</li>
<li>
<p><code>SQL_BIT</code></p>
</li>
<li>
<p><code>SQL_TINYINT</code></p>
</li>
<li>
<p><code>SQL_BIGINT</code></p>
</li>
<li>
<p><code>SQL_BINARY</code></p>
</li>
<li>
<p><code>SQL_VARBINARY</code></p>
</li>
<li>
<p><code>SQL_LONGVARBINARY</code></p>
</li>
<li>
<p><code>SQL_GUID</code></p>
</li>
<li>
<p><code>SQL_DECIMAL</code></p>
</li>
<li>
<p><code>SQL_TYPE_DATE</code></p>
</li>
<li>
<p><code>SQL_TYPE_TIMESTAMP</code></p>
</li>
<li>
<p><code>SQL_TYPE_TIME</code></p>
</li>
</ul>
</div>
</div>
</div>
<div class="sect1">
<h2 id="using-pyodbc">Using pyodbc</h2>
<div class="sectionbody">
<div class="paragraph">
<p>Ignite can be used with <a href="https://pypi.org/project/pyodbc/">pyodbc</a>. Here is how you can use pyodbc in Apache Ignite 3:</p>
</div>
<div class="ulist">
<ul>
<li>
<p>Install pyodbc</p>
<div class="listingblock">
<div class="content">
<pre class="rouge highlight"><code data-lang="shell">pip3 <span class="nb">install </span>pyodbc</code></pre>
</div>
</div>
</li>
<li>
<p>Import pyodbc to your project:</p>
<div class="listingblock">
<div class="content">
<pre class="rouge highlight"><code data-lang="python"><span class="kn">import</span> <span class="n">pyodbc</span></code></pre>
</div>
</div>
</li>
<li>
<p>Connect to the database:</p>
<div class="listingblock">
<div class="content">
<pre class="rouge highlight"><code data-lang="python"><span class="n">conn</span> <span class="o">=</span> <span class="n">pyodbc</span><span class="p">.</span><span class="nf">connect</span><span class="p">(</span><span class="sh">'</span><span class="s">Driver={Apache Ignite 3};Address=127.0.0.1:10800;</span><span class="sh">'</span><span class="p">)</span></code></pre>
</div>
</div>
</li>
<li>
<p>Set encoding to UTF-8:</p>
<div class="listingblock">
<div class="content">
<pre class="rouge highlight"><code data-lang="python"><span class="n">conn</span><span class="p">.</span><span class="nf">setencoding</span><span class="p">(</span><span class="n">encoding</span><span class="o">=</span><span class="sh">'</span><span class="s">utf-8</span><span class="sh">'</span><span class="p">)</span>
<span class="n">conn</span><span class="p">.</span><span class="nf">setdecoding</span><span class="p">(</span><span class="n">sqltype</span><span class="o">=</span><span class="n">pyodbc</span><span class="p">.</span><span class="n">SQL_CHAR</span><span class="p">,</span> <span class="n">encoding</span><span class="o">=</span><span class="sh">"</span><span class="s">utf-8</span><span class="sh">"</span><span class="p">)</span>
<span class="n">conn</span><span class="p">.</span><span class="nf">setdecoding</span><span class="p">(</span><span class="n">sqltype</span><span class="o">=</span><span class="n">pyodbc</span><span class="p">.</span><span class="n">SQL_WCHAR</span><span class="p">,</span> <span class="n">encoding</span><span class="o">=</span><span class="sh">"</span><span class="s">utf-8</span><span class="sh">"</span><span class="p">)</span></code></pre>
</div>
</div>
</li>
<li>
<p>Get data from your database:</p>
<div class="listingblock">
<div class="content">
<pre class="rouge highlight"><code data-lang="python"><span class="n">cursor</span> <span class="o">=</span> <span class="n">conn</span><span class="p">.</span><span class="nf">cursor</span><span class="p">()</span>
<span class="n">cursor</span><span class="p">.</span><span class="nf">execute</span><span class="p">(</span><span class="sh">'</span><span class="s">SELECT * FROM table_name</span><span class="sh">'</span><span class="p">)</span></code></pre>
</div>
</div>
</li>
</ul>
</div>
<div class="paragraph">
<p>For more information on using pyodbc, use the <a href="https://github.com/mkleehammer/pyodbc/wiki">official documentation</a>.</p>
</div>
</div>
</div>
<div class="copyright">
© 2024 The Apache Software Foundation.<br/>
Apache, Apache Ignite, the Apache feather and the Apache Ignite logo are either registered trademarks or trademarks of The Apache Software Foundation.
</div>
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<li><a href="#overview">Overview</a></li>
<li><a href="#installing-odbc-driver">Installing ODBC Driver</a>
<ul class="sectlevel2">
<li><a href="#installing-on-windows">Installing on Windows</a></li>
<li><a href="#installing-on-linux">Installing on Linux</a>
<ul class="sectlevel3">
<li><a href="#download-from-website">Download from website</a></li>
</ul>
</li>
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