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        <p>Library Version 11.2.5.3</p>
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          <th colspan="3" align="center">DB_NOSYNC Flag to Flush Files</th>
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        Upgrading Berkeley DB 4.8 applications to Berkeley DB 11.2.5.0
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      <p>Applications must now pass the DB_NOSYNC flag to the methods - <code class="literal">DB-&gt;remove</code>, <code class="literal">DB-&gt;rename</code>, <code class="literal">DB_ENV-&gt;dbremove</code>, and <code class="literal">DB_ENV-&gt;dbrename</code>, to avoid a multi-database file to be flushed from cache.
This flag is applicable if you have created the database handle in a non-transactional environment. 
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      <p>By default,  all non-transactional database remove/rename operations cause data to be synced to disk.
This can now be overridden using the DB_NOSYNC flag so that files can be accessed outside the environment after the database handles are closed.
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