particular, if the database supports duplicates, all records with the matching key are deleted.</p>
        <p>Alternatively, to delete a specific set of key/data pairs, which may be items within a set of duplicates, there are also two cases depending on whether the access method uses record numbers for keys.  For btree and hash access methods, construct a single bulk buffer in the <span class="bold"><strong>key</strong></span> <a href="../api_reference/C/dbt.html" class="olink">DBT</a> using <a href="../ap