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luhuayi
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Reviewed-by: Pruthi, Vineet <vineet.pruthi@t-systems.com> Co-authored-by: luhuayi <luhuayi@huawei.com> Co-committed-by: luhuayi <luhuayi@huawei.com>
31 lines
3.4 KiB
HTML
31 lines
3.4 KiB
HTML
<a name="EN-US_TOPIC_0000001811634857"></a><a name="EN-US_TOPIC_0000001811634857"></a>
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<h1 class="topictitle1">REFRESH MATERIALIZED VIEW</h1>
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<div id="body0000001549347924"><div class="section" id="EN-US_TOPIC_0000001811634857__section187581843161116"><h4 class="sectiontitle">Function</h4><p id="EN-US_TOPIC_0000001811634857__p6112134591113">Refreshes a materialized view. The refresh mode is specified by the <a href="dws_06_0357.html#EN-US_TOPIC_0000001811634773__li93006216815">REFRESH</a> parameter in the <strong id="EN-US_TOPIC_0000001811634857__b14561123317333">CREATE MATERIALIZED VIEW</strong> syntax. Currently, full refresh and scheduled refresh are supported.</p>
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</div>
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<div class="section" id="EN-US_TOPIC_0000001811634857__section7524114817149"><h4 class="sectiontitle">Precautions</h4><p id="EN-US_TOPIC_0000001811634857__p372263791210">The refresh operation blocks the DML operations on the base table.</p>
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</div>
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<div class="section" id="EN-US_TOPIC_0000001811634857__section3321849152"><h4 class="sectiontitle">Syntax</h4><div class="codecoloring" codetype="Sql" id="EN-US_TOPIC_0000001811634857__screen153211746154"><div class="highlight"><table class="highlighttable"><tr><td class="linenos"><div class="linenodiv"><pre><span class="normal">1</span>
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<span class="normal">2</span></pre></div></td><td class="code"><div><pre><span></span><span class="n">REFRESH</span><span class="w"> </span><span class="n">MATERIALIZED</span><span class="w"> </span><span class="k">VIEW</span>
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<span class="err">{</span><span class="p">[</span><span class="k">schema</span><span class="p">.]</span><span class="n">materialized_view_name</span><span class="err">}</span>
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</pre></div></td></tr></table></div>
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</div>
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</div>
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<div class="section" id="EN-US_TOPIC_0000001811634857__section1455381961915"><h4 class="sectiontitle">Parameter Description</h4><ul id="EN-US_TOPIC_0000001811634857__ul16981121715335"><li id="EN-US_TOPIC_0000001811634857__li14981121723318"><strong id="EN-US_TOPIC_0000001811634857__b5395162815190">materialized_view_name</strong><p id="EN-US_TOPIC_0000001811634857__p15348309194">Indicates the name of the materialized view to be refreshed.</p>
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</li></ul>
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</div>
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<div class="section" id="EN-US_TOPIC_0000001811634857__section848821581811"><h4 class="sectiontitle">Examples</h4><p id="EN-US_TOPIC_0000001811634857__p15631331101816">Refresh a materialized view.</p>
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<div class="codecoloring" codetype="Sql" id="EN-US_TOPIC_0000001811634857__screen468594815187"><div class="highlight"><table class="highlighttable"><tr><td class="linenos"><div class="linenodiv"><pre><span class="normal">1</span></pre></div></td><td class="code"><div><pre><span></span><span class="n">REFRESH</span><span class="w"> </span><span class="n">MATERIALIZED</span><span class="w"> </span><span class="k">VIEW</span><span class="w"> </span><span class="n">mv1</span><span class="p">;</span>
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</pre></div></td></tr></table></div>
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</div>
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</div>
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<div class="section" id="EN-US_TOPIC_0000001811634857__section465925217196"><h4 class="sectiontitle">Helpful Links</h4><p id="EN-US_TOPIC_0000001811634857__p10816953141913"><a href="dws_06_0357.html">CREATE MATERIALIZED VIEW</a>, <a href="dws_06_0358.html">ALTER MATERIALIZED VIEW</a>, <a href="dws_06_0360.html">DROP MATERIALIZED VIEW</a></p>
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</div>
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</div>
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<div>
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<div class="familylinks">
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<div class="parentlink"><strong>Parent topic:</strong> <a href="dws_06_0118.html">DDL Syntax</a></div>
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</div>
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</div>
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