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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
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Copyright 2004-2018 H2 Group. Multiple-Licensed under the MPL 2.0, Version 1.0,
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and under the Eclipse Public License, Version 1.0
Initial Developer: H2 Group
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<meta name="description" content="H2 is free SQL database written in Java" />
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<title>
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H2 Database Engine
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</title>
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<link rel="alternate" type="application/atom+xml" title="H2 Newsfeed (Atom)" href="http://www.h2database.com/html/newsfeed-atom.xml" />
<link rel="alternate" type="application/rss+xml" title="H2 Newsfeed (RSS)" href="http://www.h2database.com/html/newsfeed-rss.xml" />
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<h1>H2 Database Engine</h1>
<p>
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Welcome to H2, the Java SQL database. The main features of H2 are:
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</p>
<ul>
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<li>Very fast, open source, JDBC API
</li><li>Embedded and server modes; in-memory databases
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</li><li>Browser based Console application
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</li><li>Small footprint: around 1.5 MB jar file size
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</li></ul>
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Prepare release.
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<table style="border: 0px; width: 470px;">
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    <tr><td style="border: 0px; background-color: #eee;">
        <table style="border: 0px; margin: 0px 7px 12px 7px;">
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            <tr><td style="border: 0px; background-color: #eee;" colspan="2">
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                <h2 style="margin-top: 1em;">Download</h2>
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                Version ${version} (${versionDate})
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            </td></tr>
            <tr><td style="border: 0px; background-color: #eee;">
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                <a href="http://www.h2database.com/h2-setup-${versionDate}.exe"><img src="images/download-2.png" alt="Download this database" width="22" height="22"/></a>
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            </td><td style="vertical-align: middle; border: 0px; background-color: #eee;">
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                <a href="http://www.h2database.com/h2-setup-${versionDate}.exe">Windows Installer (5 MB)</a>
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            </td></tr>
            <tr><td style="border: 0px; background-color: #eee;">
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                <a href="http://www.h2database.com/h2-${versionDate}.zip"><img src="images/download-2.png" alt="Download this database" width="22" height="22"/></a>
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            </td><td style="vertical-align: middle; border: 0px; background-color: #eee;">
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                <a href="http://www.h2database.com/h2-${versionDate}.zip">All Platforms (zip, 8 MB)</a>
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            </td></tr>
            <tr><td style="border: 0px; background-color: #eee;" colspan="2">
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                <a href="download.html">All Downloads</a>
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            </td></tr>
        </table>
    </td>
    <td style="border: 0px;">&nbsp;&nbsp;&nbsp;</td>
    <td style="border: 0px; background-color: #eee;">
        <table style="border: 0px; margin: 0px 7px 12px 7px;">
            <tr><td style="border: 0px; background-color: #eee;">
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                <h2 style="margin-top: 1em;">Support</h2>
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                <p>
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StackOverflow as the preferred support channel, as people get feedback quicker there.
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                    <a href="http://stackoverflow.com/questions/tagged/h2">Stack Overflow (tag H2)</a><br /><br />
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                    <a href="http://groups.google.com/group/h2-database">Google Group English</a>,
                    <a href="http://groups.google.co.jp/group/h2-database-jp">Japanese</a><br /><br />
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                    For non-technical issues, use: <br />
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                    <script type="text/javascript">
                    <!--
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                    var f = '.&#99;&#111;&#109;';
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                    var g = 'h2database';
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                    document.write(d + c + '<!-'+'- x -' + '->' + e + '<span style="display:none"> (no sp<!-'+'- -'+'->am please) </span>' + g + f);
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                    //-->
                    </script>
                </p>
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    </td></tr>

<tr><td colspan="3" style="border: 0px; padding: 5px 0px 15px 0px;">
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    <h2 style="margin-top: 1em;">Features</h2>
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    <table style="width: 470px;"><tr class="notranslate">
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        <th></th>
        <th>H2</th>
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Links
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        <th><a href="http://db.apache.org/derby">Derby</a></th>
        <th><a href="http://hsqldb.org">HSQLDB</a></th>
        <th><a href="http://mysql.com">MySQL</a></th>
        <th><a href="http://www.postgresql.org">PostgreSQL</a></th>
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        </tr><tr>
        <td>Pure Java</td>
        <td class="compareY">Yes</td>
        <td class="compareY">Yes</td>
        <td class="compareY">Yes</td>
        <td class="compareN">No</td>
        <td class="compareN">No</td>
        </tr><tr>
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        <td>Memory Mode</td>
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        <td class="compareY">Yes</td>
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        <td class="compareY">Yes</td>
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        <td class="compareY">Yes</td>
        <td class="compareN">No</td>
        <td class="compareN">No</td>
        </tr><tr>
        <td>Encrypted Database</td>
        <td class="compareY">Yes</td>
        <td class="compareY">Yes</td>
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        <td class="compareY">Yes</td>
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        <td class="compareN">No</td>
        <td class="compareN">No</td>
        </tr><tr>
        <td>ODBC Driver</td>
        <td class="compareY">Yes</td>
        <td class="compareN">No</td>
        <td class="compareN">No</td>
        <td class="compareY">Yes</td>
        <td class="compareY">Yes</td>
        </tr><tr>
        <td>Fulltext Search</td>
        <td class="compareY">Yes</td>
        <td class="compareN">No</td>
        <td class="compareN">No</td>
        <td class="compareY">Yes</td>
        <td class="compareY">Yes</td>
        </tr><tr>
        <td>Multi Version Concurrency</td>
        <td class="compareY">Yes</td>
        <td class="compareN">No</td>
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        <td class="compareY">Yes</td>
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        <td class="compareY">Yes</td>
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        <td class="compareY">Yes</td>
        </tr><tr>
        <td>Footprint (jar/dll size)</td>
        <td>~1 MB</td>
        <td>~2 MB</td>
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        <td>~1 MB</td>
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        <td>~4 MB</td>
        <td>~6 MB</td>
        </tr>
    </table>
    <p>
    See also the <a href="features.html#comparison">detailed comparison</a>.
    </p>
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</td></tr>

<tr><td colspan="3" style="border: 0px; background-color: #eee;">
    <table style="border: 0px; margin: 0px 7px 0px 7px;">
        <tr><td style="border: 0px; background-color: #eee;">
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            <h2 style="margin-top: 1em;">News</h2>
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            <p>
            <b>Newsfeeds:</b>
            <a href="http://www.h2database.com/html/newsfeed-atom.xml">Full text (Atom)</a>
            or <a href="http://www.h2database.com/html/newsfeed-rss.xml">Header only (RSS)</a>.
            </p><p>
                <b>Email Newsletter:</b> Subscribe to
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                <a href="https://groups.google.com/group/h2database-news/subscribe">
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                H2 Database News (Google account required)</a>
                to get informed about new releases.
                Your email address is only used in this context.
            </p>
        </td></tr>
    </table>
</td></tr>

<tr><td colspan="3" style="border: 0px">&nbsp;</td></tr>

<tr><td colspan="3" style="border: 0px; background-color: #eee;">
    <table style="border: 0px; margin: 0px 7px 5px 7px;">
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        <tr><td style="border: 0px; background-color: #eee;">
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            <h2 style="margin-top: 1em;">Contribute</h2>
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            <p>
            You can contribute to the development of H2 by sending feedback and bug
            reports, or translate the H2 Console application (for details, start the H2 Console
            and select Options / Translate).
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            To donate money, click on the PayPal button below. You will be listed as a <a href="http://h2database.com/html/history.html#supporters">supporter</a>:
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            </p>
            <form action="https://www.paypal.com/cgi-bin/webscr" method="post">
            <p>
            <input type="hidden" name="cmd" value="_s-xclick"/>
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