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  <section id="refresh-materialized-view">
<h1 id="sql-refresh-materialized-view--page-root">REFRESH MATERIALIZED VIEW<a class="headerlink" href="#sql-refresh-materialized-view--page-root" title="Permalink to this heading">#</a></h1>
<section id="synopsis">
<h2 id="synopsis">Synopsis<a class="headerlink" href="#synopsis" title="Permalink to this heading">#</a></h2>
<div class="highlight-text notranslate"><div class="highlight"><pre><span></span>REFRESH MATERIALIZED VIEW view_name
</pre></div>
</div>
</section>
<section id="description">
<h2 id="description">Description<a class="headerlink" href="#description" title="Permalink to this heading">#</a></h2>
<p>Initially populate or refresh the data stored in the materialized view
<code class="docutils literal notranslate"><span class="pre">view_name</span></code>. The materialized view must be defined with
<a class="reference internal" href="create-materialized-view.html"><span class="doc">CREATE MATERIALIZED VIEW</span></a>. Data is retrieved from the underlying tables
accessed by the defined query.</p>
<p>The initial population of the materialized view is typically processing
intensive since it reads the data from the source tables and performs physical
write operations.</p>
<p>The refresh operation can be less intensive, if the underlying data has not
changed and the connector has implemented a mechanism to be aware of that. The
specific implementation and performance varies by connector used to create the
materialized view.</p>
</section>
<section id="see-also">
<h2 id="see-also">See also<a class="headerlink" href="#see-also" title="Permalink to this heading">#</a></h2>
<ul class="simple">
<li><p><a class="reference internal" href="create-materialized-view.html"><span class="doc">CREATE MATERIALIZED VIEW</span></a></p></li>
<li><p><a class="reference internal" href="drop-materialized-view.html"><span class="doc">DROP MATERIALIZED VIEW</span></a></p></li>
<li><p><a class="reference internal" href="show-create-materialized-view.html"><span class="doc">SHOW CREATE MATERIALIZED VIEW</span></a></p></li>
</ul>
</section>
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