forked from docs/doc-exports
Su, Xiaomeng
04d4597cf3
Reviewed-by: Pruthi, Vineet <vineet.pruthi@t-systems.com> Co-authored-by: Su, Xiaomeng <suxiaomeng1@huawei.com> Co-committed-by: Su, Xiaomeng <suxiaomeng1@huawei.com>
28 lines
3.2 KiB
HTML
28 lines
3.2 KiB
HTML
<a name="dli_08_0284"></a><a name="dli_08_0284"></a>
|
|
|
|
<h1 class="topictitle1">Deleting a Function</h1>
|
|
<div id="body1594366373345"><div class="section" id="dli_08_0284__en-us_topic_0114776166_en-us_topic_0093946803_sb4f7c67bcc9e48c8a1cee238ff95ee8a"><h4 class="sectiontitle">Function</h4><p id="dli_08_0284__en-us_topic_0114776166_en-us_topic_0093946803_af7332f86aa314eb592b007d739e64928">This statement is used to delete functions.</p>
|
|
</div>
|
|
<div class="section" id="dli_08_0284__en-us_topic_0114776166_en-us_topic_0093946803_s31fb77ecb4944d48b8e1a1f336352a75"><h4 class="sectiontitle">Syntax</h4><div class="codecoloring" codetype="Sql" id="dli_08_0284__en-us_topic_0114776166_screen156871325978"><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="k">DROP</span><span class="w"> </span><span class="p">[</span><span class="k">TEMPORARY</span><span class="p">]</span><span class="w"> </span><span class="k">FUNCTION</span><span class="w"> </span><span class="p">[</span><span class="k">IF</span><span class="w"> </span><span class="k">EXISTS</span><span class="p">]</span><span class="w"> </span><span class="p">[</span><span class="n">db_name</span><span class="p">.]</span><span class="w"> </span><span class="n">function_name</span><span class="p">;</span>
|
|
</pre></div></td></tr></table></div>
|
|
|
|
</div>
|
|
</div>
|
|
<div class="section" id="dli_08_0284__en-us_topic_0114776166_en-us_topic_0093946803_s1abdf21b005747b3874f626419bd591b"><h4 class="sectiontitle">Keywords</h4><ul id="dli_08_0284__ul1169522612599"><li id="dli_08_0284__li12845928195912">TEMPORARY: Indicates whether the function to be deleted is a temporary function.</li><li id="dli_08_0284__li3695172685918">IF EXISTS: Used when the function to be deleted does not exist to avoid system errors.</li></ul>
|
|
</div>
|
|
<div class="section" id="dli_08_0284__en-us_topic_0114776166_en-us_topic_0093946803_sfc216fe9b4ca4acbae65fd45de064533"><h4 class="sectiontitle">Precautions</h4><ul id="dli_08_0284__ul68151127594"><li id="dli_08_0284__li15815828597">An existing function is deleted. If the function to be deleted does not exist, the system reports an error.</li><li id="dli_08_0284__li119046455913">Only the HIVE syntax is supported.</li></ul>
|
|
</div>
|
|
<div class="section" id="dli_08_0284__en-us_topic_0114776166_en-us_topic_0093946803_sdaf96bd7f7ca490b984b832d0762188a"><h4 class="sectiontitle">Example</h4><p id="dli_08_0284__p1215322895714">The mergeBill function is deleted.</p>
|
|
<div class="codecoloring" codetype="Sql" id="dli_08_0284__en-us_topic_0114776166_screen820514582072"><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="k">DROP</span><span class="w"> </span><span class="k">FUNCTION</span><span class="w"> </span><span class="n">mergeBill</span><span class="p">;</span>
|
|
</pre></div></td></tr></table></div>
|
|
|
|
</div>
|
|
</div>
|
|
</div>
|
|
<div>
|
|
<div class="familylinks">
|
|
<div class="parentlink"><strong>Parent topic:</strong> <a href="dli_08_0282.html">User-Defined Functions</a></div>
|
|
</div>
|
|
</div>
|
|
|