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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 2004-2009 H2 Group. Multiple-Licensed under the H2 License, Version 1.0,
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and under the Eclipse Public License, Version 1.0
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Initial Developer: H2 Group
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H2 Database Engine
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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
</li><li>Small footprint: around 1 MB jar file size
</li></ul>

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        <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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                <h3 style="margin-top: 1em;">Download Beta</h3>
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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-${versionDate}.exe"><img style="border: 1px #00f solid;" src="images/download.png" alt="download" width="22" height="20"/></a>
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            </td><td style="vertical-align: middle; border: 0px; background-color: #eee;">
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                <a href="http://www.h2database.com/h2-setup-${versionDate}.exe">Windows Installer (4 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-${versionDate}.zip"><img style="border: 1px #00f solid;" src="images/download.png" alt="download" width="22" height="20"/></a>
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            </td><td style="vertical-align: middle; border: 0px; background-color: #eee;">
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                <a href="http://www.h2database.com/h2-${versionDate}.zip">All Platforms (zip, 5 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>
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    </td>
    <td style="border: 0px;">&nbsp;&nbsp;&nbsp;</td>
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                <h3 style="margin-top: 1em;">Support</h3>
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                <p>
                    <a href="http://groups.google.com/group/h2-database">English Google Group</a><br />
                    <a href="http://groups.google.co.jp/group/h2-database-jp">Japanese Google Group</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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<tr><td colspan="3" style="border: 0px; padding: 5px 0px 15px 0px;">
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    <h3 style="margin-top: 1em;">Features</h3>
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    <table style="width: 425px;"><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>Transaction Isolation</td>
        <td class="compareY">Yes</td>
        <td class="compareY">Yes</td>
        <td class="compareN">No</td>
        <td class="compareY">Yes</td>
        <td class="compareY">Yes</td>
        </tr><tr>
        <td>Cost Based Optimizer</td>
        <td class="compareY">Yes</td>
        <td class="compareY">Yes</td>
        <td class="compareN">No</td>
        <td class="compareY">Yes</td>
        <td class="compareY">Yes</td>
        </tr><tr>
        <td>Encrypted Database</td>
        <td class="compareY">Yes</td>
        <td class="compareY">Yes</td>
        <td class="compareN">No</td>
        <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>
        <td class="compareN">No</td>
        <td class="compareN">No</td>
        <td class="compareY">Yes</td>
        </tr><tr>
        <td>Footprint (jar/dll size)</td>
        <td>~1 MB</td>
        <td>~2 MB</td>
        <td>~600 KB</td>
        <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;">
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            <h3 style="margin-top: 1em;">News</h3>
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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
                <a href="http://groups.google.com/group/h2database-news/subscribe">
                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>

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    <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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            <h3 style="margin-top: 1em;">Contribute</h3>
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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).
            To donate money, click on the PayPal button below. You will be listed as a supporter:
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