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doc-exports/docs/dws/tool/dws_16_0146.html
luhuayi a5e3903f6b DWS TG 910.211 version 
Reviewed-by: Pruthi, Vineet <vineet.pruthi@t-systems.com>
Co-authored-by: luhuayi <luhuayi@huawei.com>
Co-committed-by: luhuayi <luhuayi@huawei.com>
2025-04-23 13:53:01 +00:00

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<a name="EN-US_TOPIC_0000001860198625"></a><a name="EN-US_TOPIC_0000001860198625"></a>
<h1 class="topictitle1">PARTITION BY</h1>
<div id="body8662426"><p id="EN-US_TOPIC_0000001860198625__en-us_topic_0000001398458592_p8060118">In MySQL, PARTITION BY is used to create partitioned tables. Currently, GaussDB(DWS) supports only range and list partitions in MySQL.</p>
<div class="caution" id="EN-US_TOPIC_0000001860198625__en-us_topic_0000001398458592_en-us_topic_0214164618_note9749104517138"><span class="cautiontitle"><img src="public_sys-resources/caution_3.0-en-us.png"> </span><div class="cautionbody"><p id="EN-US_TOPIC_0000001860198625__en-us_topic_0000001398458592_en-us_topic_0214164618_p117497455133">Hash partitions of PARTITION BY are not supported and deleted during migration. The deletion does not affect the current table functions, but may affect the performance slightly.</p>
</div></div>
<div class="section" id="EN-US_TOPIC_0000001860198625__en-us_topic_0000001398458592_section12615112915911"><h4 class="sectiontitle">PARTITION BY RANGE</h4><p id="EN-US_TOPIC_0000001860198625__en-us_topic_0000001398458592_en-us_topic_0214164599_p574881056"><strong id="EN-US_TOPIC_0000001860198625__en-us_topic_0000001398458592_en-us_topic_0214164599_b1062920488557">Input</strong></p>
<div class="codecoloring" codetype="Sql" id="EN-US_TOPIC_0000001860198625__en-us_topic_0000001398458592_en-us_topic_0214164599_screen52843365572"><div class="highlight"><table class="highlighttable"><tr><td class="linenos"><div class="linenodiv"><pre><span class="normal"> 1</span>
<span class="normal"> 2</span>
<span class="normal"> 3</span>
<span class="normal"> 4</span>
<span class="normal"> 5</span>
<span class="normal"> 6</span>
<span class="normal"> 7</span>
<span class="normal"> 8</span>
<span class="normal"> 9</span>
<span class="normal">10</span>
<span class="normal">11</span>
<span class="normal">12</span>
<span class="normal">13</span>
<span class="normal">14</span>
<span class="normal">15</span>
<span class="normal">16</span>
<span class="normal">17</span>
<span class="normal">18</span></pre></div></td><td class="code"><div><pre><span></span><span class="k">CREATE</span><span class="w"> </span><span class="k">TABLE</span><span class="w"> </span><span class="k">IF</span><span class="w"> </span><span class="k">NOT</span><span class="w"> </span><span class="k">EXISTS</span><span class="w"> </span><span class="o">`</span><span class="n">runoob_tbl_part_test</span><span class="o">`</span><span class="p">(</span>
<span class="w"> </span><span class="o">`</span><span class="n">runoob_id</span><span class="o">`</span><span class="w"> </span><span class="nb">INT</span><span class="w"> </span><span class="k">NOT</span><span class="w"> </span><span class="k">NULL</span><span class="p">,</span>
<span class="w"> </span><span class="o">`</span><span class="n">runoob_title</span><span class="o">`</span><span class="w"> </span><span class="nb">VARCHAR</span><span class="p">(</span><span class="mi">100</span><span class="p">)</span><span class="w"> </span><span class="k">NOT</span><span class="w"> </span><span class="k">NULL</span><span class="p">,</span>
<span class="w"> </span><span class="o">`</span><span class="n">runoob_author</span><span class="o">`</span><span class="w"> </span><span class="nb">VARCHAR</span><span class="p">(</span><span class="mi">40</span><span class="p">)</span><span class="w"> </span><span class="k">NOT</span><span class="w"> </span><span class="k">NULL</span><span class="p">,</span>
<span class="w"> </span><span class="o">`</span><span class="n">submission_date</span><span class="o">`</span><span class="w"> </span><span class="nb">VARCHAR</span><span class="p">(</span><span class="mi">30</span><span class="p">)</span>
<span class="p">)</span><span class="n">ENGINE</span><span class="o">=</span><span class="n">InnoDB</span><span class="w"> </span><span class="k">DEFAULT</span><span class="w"> </span><span class="n">CHARSET</span><span class="o">=</span><span class="n">utf8</span>
<span class="n">PARTITION</span><span class="w"> </span><span class="k">BY</span><span class="w"> </span><span class="n">RANGE</span><span class="w"> </span><span class="p">(</span><span class="o">`</span><span class="n">runoob_id</span><span class="o">`</span><span class="p">)(</span>
<span class="w"> </span><span class="n">PARTITION</span><span class="w"> </span><span class="n">p0</span><span class="w"> </span><span class="k">VALUES</span><span class="w"> </span><span class="k">LESS</span><span class="w"> </span><span class="k">THAN</span><span class="p">(</span><span class="mi">100</span><span class="p">),</span>
<span class="w"> </span><span class="n">PARTITION</span><span class="w"> </span><span class="n">p1</span><span class="w"> </span><span class="k">VALUES</span><span class="w"> </span><span class="k">LESS</span><span class="w"> </span><span class="k">THAN</span><span class="p">(</span><span class="mi">200</span><span class="p">),</span>
<span class="w"> </span><span class="n">PARTITION</span><span class="w"> </span><span class="n">p2</span><span class="w"> </span><span class="k">VALUES</span><span class="w"> </span><span class="k">LESS</span><span class="w"> </span><span class="k">THAN</span><span class="p">(</span><span class="mi">300</span><span class="p">),</span>
<span class="w"> </span><span class="n">PARTITION</span><span class="w"> </span><span class="n">p3</span><span class="w"> </span><span class="k">VALUES</span><span class="w"> </span><span class="k">LESS</span><span class="w"> </span><span class="k">THAN</span><span class="p">(</span><span class="mi">400</span><span class="p">),</span>
<span class="w"> </span><span class="n">PARTITION</span><span class="w"> </span><span class="n">p4</span><span class="w"> </span><span class="k">VALUES</span><span class="w"> </span><span class="k">LESS</span><span class="w"> </span><span class="k">THAN</span><span class="p">(</span><span class="mi">500</span><span class="p">),</span>
<span class="w"> </span><span class="n">PARTITION</span><span class="w"> </span><span class="n">p5</span><span class="w"> </span><span class="k">VALUES</span><span class="w"> </span><span class="k">LESS</span><span class="w"> </span><span class="k">THAN</span><span class="w"> </span><span class="p">(</span><span class="k">MAXVALUE</span><span class="p">)</span>
<span class="p">);</span>
<span class="k">ALTER</span><span class="w"> </span><span class="k">TABLE</span><span class="w"> </span><span class="o">`</span><span class="n">runoob_tbl_part_test</span><span class="o">`</span><span class="w"> </span><span class="k">ADD</span><span class="w"> </span><span class="n">PARTITION</span><span class="w"> </span><span class="p">(</span><span class="n">PARTITION</span><span class="w"> </span><span class="n">p6</span><span class="w"> </span><span class="k">VALUES</span><span class="w"> </span><span class="k">LESS</span><span class="w"> </span><span class="k">THAN</span><span class="w"> </span><span class="p">(</span><span class="mi">600</span><span class="p">));</span>
<span class="k">ALTER</span><span class="w"> </span><span class="k">TABLE</span><span class="w"> </span><span class="o">`</span><span class="n">runoob_tbl_part_test</span><span class="o">`</span><span class="w"> </span><span class="k">ADD</span><span class="w"> </span><span class="n">PARTITION</span><span class="w"> </span><span class="p">(</span><span class="n">PARTITION</span><span class="w"> </span><span class="n">p7</span><span class="w"> </span><span class="k">VALUES</span><span class="w"> </span><span class="k">LESS</span><span class="w"> </span><span class="k">THAN</span><span class="w"> </span><span class="p">(</span><span class="mi">700</span><span class="p">),</span><span class="n">PARTITION</span><span class="w"> </span><span class="n">p8</span><span class="w"> </span><span class="k">VALUES</span><span class="w"> </span><span class="k">LESS</span><span class="w"> </span><span class="k">THAN</span><span class="w"> </span><span class="p">(</span><span class="mi">800</span><span class="p">));</span>
</pre></div></td></tr></table></div>
</div>
<p id="EN-US_TOPIC_0000001860198625__en-us_topic_0000001398458592_en-us_topic_0214164599_p12114173518210"><strong id="EN-US_TOPIC_0000001860198625__en-us_topic_0000001398458592_en-us_topic_0214164599_b6709155185510">Output</strong></p>
<div class="codecoloring" codetype="Sql" id="EN-US_TOPIC_0000001860198625__en-us_topic_0000001398458592_en-us_topic_0214164599_screen1360576145519"><div class="highlight"><table class="highlighttable"><tr><td class="linenos"><div class="linenodiv"><pre><span class="normal"> 1</span>
<span class="normal"> 2</span>
<span class="normal"> 3</span>
<span class="normal"> 4</span>
<span class="normal"> 5</span>
<span class="normal"> 6</span>
<span class="normal"> 7</span>
<span class="normal"> 8</span>
<span class="normal"> 9</span>
<span class="normal">10</span>
<span class="normal">11</span>
<span class="normal">12</span>
<span class="normal">13</span>
<span class="normal">14</span>
<span class="normal">15</span>
<span class="normal">16</span>
<span class="normal">17</span>
<span class="normal">18</span>
<span class="normal">19</span>
<span class="normal">20</span>
<span class="normal">21</span>
<span class="normal">22</span>
<span class="normal">23</span>
<span class="normal">24</span>
<span class="normal">25</span>
<span class="normal">26</span>
<span class="normal">27</span></pre></div></td><td class="code"><div><pre><span></span><span class="k">CREATE</span><span class="w"> </span><span class="k">TABLE</span><span class="w"> </span><span class="k">IF</span><span class="w"> </span><span class="k">NOT</span><span class="w"> </span><span class="k">EXISTS</span><span class="w"> </span><span class="ss">&quot;public&quot;</span><span class="p">.</span><span class="ss">&quot;runoob_tbl_part_test&quot;</span><span class="w"> </span><span class="p">(</span>
<span class="w"> </span><span class="ss">&quot;runoob_id&quot;</span><span class="w"> </span><span class="nb">INTEGER</span><span class="w"> </span><span class="k">NOT</span><span class="w"> </span><span class="k">NULL</span><span class="p">,</span>
<span class="w"> </span><span class="ss">&quot;runoob_title&quot;</span><span class="w"> </span><span class="nb">VARCHAR</span><span class="p">(</span><span class="mi">400</span><span class="p">)</span><span class="w"> </span><span class="k">NOT</span><span class="w"> </span><span class="k">NULL</span><span class="p">,</span>
<span class="w"> </span><span class="ss">&quot;runoob_author&quot;</span><span class="w"> </span><span class="nb">VARCHAR</span><span class="p">(</span><span class="mi">160</span><span class="p">)</span><span class="w"> </span><span class="k">NOT</span><span class="w"> </span><span class="k">NULL</span><span class="p">,</span>
<span class="w"> </span><span class="ss">&quot;submission_date&quot;</span><span class="w"> </span><span class="nb">VARCHAR</span><span class="p">(</span><span class="mi">120</span><span class="p">)</span>
<span class="p">)</span><span class="w"> </span><span class="k">WITH</span><span class="w"> </span><span class="p">(</span><span class="n">ORIENTATION</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="k">ROW</span><span class="p">,</span><span class="w"> </span><span class="n">COMPRESSION</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="k">NO</span><span class="p">)</span><span class="w"> </span><span class="n">NOCOMPRESS</span><span class="w"> </span><span class="n">DISTRIBUTE</span><span class="w"> </span><span class="k">BY</span><span class="w"> </span><span class="n">HASH</span><span class="w"> </span><span class="p">(</span><span class="ss">&quot;runoob_id&quot;</span><span class="p">)</span><span class="w"> </span><span class="n">PARTITION</span><span class="w"> </span><span class="k">BY</span><span class="w"> </span><span class="n">RANGE</span><span class="w"> </span><span class="p">(</span><span class="ss">&quot;runoob_id&quot;</span><span class="p">)</span><span class="w"> </span><span class="p">(</span>
<span class="w"> </span><span class="n">PARTITION</span><span class="w"> </span><span class="n">p0</span>
<span class="w"> </span><span class="k">VALUES</span>
<span class="w"> </span><span class="k">LESS</span><span class="w"> </span><span class="k">THAN</span><span class="w"> </span><span class="p">(</span><span class="mi">100</span><span class="p">),</span>
<span class="w"> </span><span class="n">PARTITION</span><span class="w"> </span><span class="n">p1</span>
<span class="w"> </span><span class="k">VALUES</span>
<span class="w"> </span><span class="k">LESS</span><span class="w"> </span><span class="k">THAN</span><span class="w"> </span><span class="p">(</span><span class="mi">200</span><span class="p">),</span>
<span class="w"> </span><span class="n">PARTITION</span><span class="w"> </span><span class="n">p2</span>
<span class="w"> </span><span class="k">VALUES</span>
<span class="w"> </span><span class="k">LESS</span><span class="w"> </span><span class="k">THAN</span><span class="w"> </span><span class="p">(</span><span class="mi">300</span><span class="p">),</span>
<span class="w"> </span><span class="n">PARTITION</span><span class="w"> </span><span class="n">p3</span>
<span class="w"> </span><span class="k">VALUES</span>
<span class="w"> </span><span class="k">LESS</span><span class="w"> </span><span class="k">THAN</span><span class="w"> </span><span class="p">(</span><span class="mi">400</span><span class="p">),</span>
<span class="w"> </span><span class="n">PARTITION</span><span class="w"> </span><span class="n">p4</span>
<span class="w"> </span><span class="k">VALUES</span>
<span class="w"> </span><span class="k">LESS</span><span class="w"> </span><span class="k">THAN</span><span class="w"> </span><span class="p">(</span><span class="mi">500</span><span class="p">),</span>
<span class="w"> </span><span class="n">PARTITION</span><span class="w"> </span><span class="n">p5</span>
<span class="w"> </span><span class="k">VALUES</span>
<span class="w"> </span><span class="k">LESS</span><span class="w"> </span><span class="k">THAN</span><span class="w"> </span><span class="p">(</span><span class="k">MAXVALUE</span><span class="p">)</span>
<span class="p">);</span>
<span class="k">ALTER</span><span class="w"> </span><span class="k">TABLE</span><span class="w"> </span><span class="ss">&quot;public&quot;</span><span class="p">.</span><span class="ss">&quot;runoob_tbl_part_test&quot;</span><span class="w"> </span><span class="k">ADD</span><span class="w"> </span><span class="n">PARTITION</span><span class="w"> </span><span class="n">p6</span><span class="w"> </span><span class="k">VALUES</span><span class="w"> </span><span class="k">LESS</span><span class="w"> </span><span class="k">THAN</span><span class="w"> </span><span class="p">(</span><span class="mi">600</span><span class="p">);</span>
<span class="k">ALTER</span><span class="w"> </span><span class="k">TABLE</span><span class="w"> </span><span class="ss">&quot;public&quot;</span><span class="p">.</span><span class="ss">&quot;runoob_tbl_part_test&quot;</span><span class="w"> </span><span class="k">ADD</span><span class="w"> </span><span class="n">PARTITION</span><span class="w"> </span><span class="n">p7</span><span class="w"> </span><span class="k">VALUES</span><span class="w"> </span><span class="k">LESS</span><span class="w"> </span><span class="k">THAN</span><span class="w"> </span><span class="p">(</span><span class="mi">700</span><span class="p">),</span><span class="w"> </span><span class="k">ADD</span><span class="w"> </span><span class="n">PARTITION</span><span class="w"> </span><span class="n">p8</span><span class="w"> </span><span class="k">VALUES</span><span class="w"> </span><span class="k">LESS</span><span class="w"> </span><span class="k">THAN</span><span class="w"> </span><span class="p">(</span><span class="mi">800</span><span class="p">);</span>
</pre></div></td></tr></table></div>
</div>
</div>
<div class="section" id="EN-US_TOPIC_0000001860198625__en-us_topic_0000001398458592_section16358942002"><h4 class="sectiontitle">PARTITION BY LIST</h4><p id="EN-US_TOPIC_0000001860198625__en-us_topic_0000001398458592_p18352259016"><strong id="EN-US_TOPIC_0000001860198625__en-us_topic_0000001398458592_b16359251103">Input</strong></p>
<div class="codecoloring" codetype="Sql" id="EN-US_TOPIC_0000001860198625__en-us_topic_0000001398458592_screen1535202510014"><div class="highlight"><table class="highlighttable"><tr><td class="linenos"><div class="linenodiv"><pre><span class="normal"> 1</span>
<span class="normal"> 2</span>
<span class="normal"> 3</span>
<span class="normal"> 4</span>
<span class="normal"> 5</span>
<span class="normal"> 6</span>
<span class="normal"> 7</span>
<span class="normal"> 8</span>
<span class="normal"> 9</span>
<span class="normal">10</span>
<span class="normal">11</span>
<span class="normal">12</span>
<span class="normal">13</span>
<span class="normal">14</span></pre></div></td><td class="code"><div><pre><span></span><span class="k">CREATE</span><span class="w"> </span><span class="k">TABLE</span><span class="w"> </span><span class="k">IF</span><span class="w"> </span><span class="k">NOT</span><span class="w"> </span><span class="k">EXISTS</span><span class="w"> </span><span class="o">`</span><span class="n">runoob_tbl_part_test</span><span class="o">`</span><span class="p">(</span>
<span class="w"> </span><span class="o">`</span><span class="n">runoob_id</span><span class="o">`</span><span class="w"> </span><span class="nb">INT</span><span class="w"> </span><span class="k">NOT</span><span class="w"> </span><span class="k">NULL</span><span class="p">,</span>
<span class="w"> </span><span class="o">`</span><span class="n">runoob_title</span><span class="o">`</span><span class="w"> </span><span class="nb">VARCHAR</span><span class="p">(</span><span class="mi">100</span><span class="p">)</span><span class="w"> </span><span class="k">NOT</span><span class="w"> </span><span class="k">NULL</span><span class="p">,</span>
<span class="w"> </span><span class="o">`</span><span class="n">runoob_author</span><span class="o">`</span><span class="w"> </span><span class="nb">VARCHAR</span><span class="p">(</span><span class="mi">40</span><span class="p">)</span><span class="w"> </span><span class="k">NOT</span><span class="w"> </span><span class="k">NULL</span><span class="p">,</span>
<span class="w"> </span><span class="o">`</span><span class="n">submission_date</span><span class="o">`</span><span class="w"> </span><span class="nb">VARCHAR</span><span class="p">(</span><span class="mi">30</span><span class="p">),</span>
<span class="w"> </span><span class="k">PRIMARY</span><span class="w"> </span><span class="k">KEY</span><span class="w"> </span><span class="p">(</span><span class="o">`</span><span class="n">runoob_id</span><span class="o">`</span><span class="p">)</span>
<span class="w"> </span><span class="p">)</span><span class="n">ENGINE</span><span class="o">=</span><span class="n">InnoDB</span><span class="w"> </span><span class="k">DEFAULT</span><span class="w"> </span><span class="n">CHARSET</span><span class="o">=</span><span class="n">utf8</span>
<span class="w"> </span><span class="n">PARTITION</span><span class="w"> </span><span class="k">BY</span><span class="w"> </span><span class="n">LIST</span><span class="w"> </span><span class="p">(</span><span class="n">runoob_id</span><span class="p">)(</span>
<span class="w"> </span><span class="n">PARTITION</span><span class="w"> </span><span class="n">r0</span><span class="w"> </span><span class="k">VALUES</span><span class="w"> </span><span class="k">IN</span><span class="w"> </span><span class="p">(</span><span class="mi">1</span><span class="p">,</span><span class="w"> </span><span class="mi">5</span><span class="p">,</span><span class="w"> </span><span class="mi">9</span><span class="p">,</span><span class="w"> </span><span class="mi">13</span><span class="p">,</span><span class="w"> </span><span class="mi">17</span><span class="p">,</span><span class="w"> </span><span class="mi">21</span><span class="p">),</span>
<span class="w"> </span><span class="n">PARTITION</span><span class="w"> </span><span class="n">r1</span><span class="w"> </span><span class="k">VALUES</span><span class="w"> </span><span class="k">IN</span><span class="w"> </span><span class="p">(</span><span class="mi">2</span><span class="p">,</span><span class="w"> </span><span class="mi">6</span><span class="p">,</span><span class="w"> </span><span class="mi">10</span><span class="p">,</span><span class="w"> </span><span class="mi">14</span><span class="p">,</span><span class="w"> </span><span class="mi">18</span><span class="p">,</span><span class="w"> </span><span class="mi">22</span><span class="p">),</span>
<span class="w"> </span><span class="n">PARTITION</span><span class="w"> </span><span class="n">r2</span><span class="w"> </span><span class="k">VALUES</span><span class="w"> </span><span class="k">IN</span><span class="w"> </span><span class="p">(</span><span class="mi">3</span><span class="p">,</span><span class="w"> </span><span class="mi">7</span><span class="p">,</span><span class="w"> </span><span class="mi">11</span><span class="p">,</span><span class="w"> </span><span class="mi">15</span><span class="p">,</span><span class="w"> </span><span class="mi">19</span><span class="p">,</span><span class="w"> </span><span class="mi">23</span><span class="p">),</span>
<span class="w"> </span><span class="n">PARTITION</span><span class="w"> </span><span class="n">r3</span><span class="w"> </span><span class="k">VALUES</span><span class="w"> </span><span class="k">IN</span><span class="w"> </span><span class="p">(</span><span class="mi">4</span><span class="p">,</span><span class="w"> </span><span class="mi">8</span><span class="p">,</span><span class="w"> </span><span class="mi">12</span><span class="p">,</span><span class="w"> </span><span class="mi">16</span><span class="p">,</span><span class="w"> </span><span class="mi">20</span><span class="p">,</span><span class="w"> </span><span class="mi">24</span><span class="p">)</span>
<span class="w"> </span><span class="p">);</span>
<span class="k">ALTER</span><span class="w"> </span><span class="k">TABLE</span><span class="w"> </span><span class="o">`</span><span class="n">runoob_tbl_part_test</span><span class="o">`</span><span class="w"> </span><span class="k">ADD</span><span class="w"> </span><span class="n">PARTITION</span><span class="w"> </span><span class="p">(</span><span class="n">PARTITION</span><span class="w"> </span><span class="n">p5</span><span class="w"> </span><span class="k">VALUES</span><span class="w"> </span><span class="k">IN</span><span class="p">(</span><span class="mi">30</span><span class="p">,</span><span class="w"> </span><span class="mi">40</span><span class="p">,</span><span class="w"> </span><span class="mi">50</span><span class="p">,</span><span class="w"> </span><span class="mi">60</span><span class="p">,</span><span class="w"> </span><span class="mi">70</span><span class="p">,</span><span class="w"> </span><span class="mi">80</span><span class="p">));</span>
</pre></div></td></tr></table></div>
</div>
<p id="EN-US_TOPIC_0000001860198625__en-us_topic_0000001398458592_p2354251103"><strong id="EN-US_TOPIC_0000001860198625__en-us_topic_0000001398458592_b1235925902">Output</strong></p>
<div class="codecoloring" codetype="Sql" id="EN-US_TOPIC_0000001860198625__en-us_topic_0000001398458592_screen143512252004"><div class="highlight"><table class="highlighttable"><tr><td class="linenos"><div class="linenodiv"><pre><span class="normal"> 1</span>
<span class="normal"> 2</span>
<span class="normal"> 3</span>
<span class="normal"> 4</span>
<span class="normal"> 5</span>
<span class="normal"> 6</span>
<span class="normal"> 7</span>
<span class="normal"> 8</span>
<span class="normal"> 9</span>
<span class="normal">10</span>
<span class="normal">11</span>
<span class="normal">12</span>
<span class="normal">13</span>
<span class="normal">14</span>
<span class="normal">15</span>
<span class="normal">16</span>
<span class="normal">17</span>
<span class="normal">18</span>
<span class="normal">19</span>
<span class="normal">20</span>
<span class="normal">21</span></pre></div></td><td class="code"><div><pre><span></span><span class="k">CREATE</span><span class="w"> </span><span class="k">TABLE</span><span class="w"> </span><span class="k">IF</span><span class="w"> </span><span class="k">NOT</span><span class="w"> </span><span class="k">EXISTS</span><span class="w"> </span><span class="ss">&quot;public&quot;</span><span class="p">.</span><span class="ss">&quot;runoob_tbl_part_test&quot;</span><span class="w"> </span><span class="p">(</span>
<span class="w"> </span><span class="ss">&quot;runoob_id&quot;</span><span class="w"> </span><span class="nb">INTEGER</span><span class="w"> </span><span class="k">NOT</span><span class="w"> </span><span class="k">NULL</span><span class="p">,</span>
<span class="w"> </span><span class="ss">&quot;runoob_title&quot;</span><span class="w"> </span><span class="nb">VARCHAR</span><span class="p">(</span><span class="mi">400</span><span class="p">)</span><span class="w"> </span><span class="k">NOT</span><span class="w"> </span><span class="k">NULL</span><span class="p">,</span>
<span class="w"> </span><span class="ss">&quot;runoob_author&quot;</span><span class="w"> </span><span class="nb">VARCHAR</span><span class="p">(</span><span class="mi">160</span><span class="p">)</span><span class="w"> </span><span class="k">NOT</span><span class="w"> </span><span class="k">NULL</span><span class="p">,</span>
<span class="w"> </span><span class="ss">&quot;submission_date&quot;</span><span class="w"> </span><span class="nb">VARCHAR</span><span class="p">(</span><span class="mi">120</span><span class="p">),</span>
<span class="w"> </span><span class="k">PRIMARY</span><span class="w"> </span><span class="k">KEY</span><span class="w"> </span><span class="p">(</span><span class="ss">&quot;runoob_id&quot;</span><span class="p">)</span>
<span class="p">)</span><span class="w"> </span><span class="k">WITH</span><span class="w"> </span><span class="p">(</span><span class="n">ORIENTATION</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="k">ROW</span><span class="p">,</span><span class="w"> </span><span class="n">COMPRESSION</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="k">NO</span><span class="p">)</span><span class="w"> </span><span class="n">NOCOMPRESS</span><span class="w"> </span><span class="n">DISTRIBUTE</span><span class="w"> </span><span class="k">BY</span><span class="w"> </span><span class="n">HASH</span><span class="w"> </span><span class="p">(</span><span class="ss">&quot;runoob_id&quot;</span><span class="p">)</span><span class="w"> </span><span class="n">PARTITION</span><span class="w"> </span><span class="k">BY</span><span class="w"> </span><span class="n">LIST</span><span class="w"> </span><span class="p">(</span><span class="n">runoob_id</span><span class="p">)</span><span class="w"> </span><span class="p">(</span>
<span class="w"> </span><span class="n">PARTITION</span><span class="w"> </span><span class="n">r0</span>
<span class="w"> </span><span class="k">VALUES</span>
<span class="w"> </span><span class="p">(</span><span class="mi">1</span><span class="p">,</span><span class="w"> </span><span class="mi">5</span><span class="p">,</span><span class="w"> </span><span class="mi">9</span><span class="p">,</span><span class="w"> </span><span class="mi">13</span><span class="p">,</span><span class="w"> </span><span class="mi">17</span><span class="p">,</span><span class="w"> </span><span class="mi">21</span><span class="p">),</span>
<span class="w"> </span><span class="n">PARTITION</span><span class="w"> </span><span class="n">r1</span>
<span class="w"> </span><span class="k">VALUES</span>
<span class="w"> </span><span class="p">(</span><span class="mi">2</span><span class="p">,</span><span class="w"> </span><span class="mi">6</span><span class="p">,</span><span class="w"> </span><span class="mi">10</span><span class="p">,</span><span class="w"> </span><span class="mi">14</span><span class="p">,</span><span class="w"> </span><span class="mi">18</span><span class="p">,</span><span class="w"> </span><span class="mi">22</span><span class="p">),</span>
<span class="w"> </span><span class="n">PARTITION</span><span class="w"> </span><span class="n">r2</span>
<span class="w"> </span><span class="k">VALUES</span>
<span class="w"> </span><span class="p">(</span><span class="mi">3</span><span class="p">,</span><span class="w"> </span><span class="mi">7</span><span class="p">,</span><span class="w"> </span><span class="mi">11</span><span class="p">,</span><span class="w"> </span><span class="mi">15</span><span class="p">,</span><span class="w"> </span><span class="mi">19</span><span class="p">,</span><span class="w"> </span><span class="mi">23</span><span class="p">),</span>
<span class="w"> </span><span class="n">PARTITION</span><span class="w"> </span><span class="n">r3</span>
<span class="w"> </span><span class="k">VALUES</span>
<span class="w"> </span><span class="p">(</span><span class="mi">4</span><span class="p">,</span><span class="w"> </span><span class="mi">8</span><span class="p">,</span><span class="w"> </span><span class="mi">12</span><span class="p">,</span><span class="w"> </span><span class="mi">16</span><span class="p">,</span><span class="w"> </span><span class="mi">20</span><span class="p">,</span><span class="w"> </span><span class="mi">24</span><span class="p">)</span>
<span class="p">);</span>
<span class="k">ALTER</span><span class="w"> </span><span class="k">TABLE</span><span class="w"> </span><span class="ss">&quot;public&quot;</span><span class="p">.</span><span class="ss">&quot;runoob_tbl_part_test&quot;</span><span class="w"> </span><span class="k">ADD</span><span class="w"> </span><span class="n">PARTITION</span><span class="w"> </span><span class="n">p5</span><span class="w"> </span><span class="k">VALUES</span><span class="w"> </span><span class="p">(</span><span class="mi">30</span><span class="p">,</span><span class="w"> </span><span class="mi">40</span><span class="p">,</span><span class="w"> </span><span class="mi">50</span><span class="p">,</span><span class="w"> </span><span class="mi">60</span><span class="p">,</span><span class="w"> </span><span class="mi">70</span><span class="p">,</span><span class="w"> </span><span class="mi">80</span><span class="p">);</span>
</pre></div></td></tr></table></div>
</div>
<p id="EN-US_TOPIC_0000001860198625__en-us_topic_0000001398458592_p193313241705"></p>
</div>
</div>
<div>
<div class="familylinks">
<div class="parentlink"><strong>Parent topic:</strong> <a href="dws_16_0119.html">Table (Optional Parameters and Operations)</a></div>
</div>
</div>
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