an object, and all its behavior, are determined by the
programming language.</p>
        <p>Object-oriented databases aren't nearly as widely deployed as relational
systems. In order to attract developers who understand relational
systems, many of the object-oriented systems have added support for
query languages very much like SQL. In practice, though, object-oriented
databases are mostly used for persistent storage of objects in C++ and
Java programs.</p>
      </div>
      <div class="sect2" lang="en" xm