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Lu, Huayi e6fa411af0 DWS DEV 830.201 version 
Reviewed-by: Pruthi, Vineet <vineet.pruthi@t-systems.com>
Co-authored-by: Lu, Huayi <luhuayi@huawei.com>
Co-committed-by: Lu, Huayi <luhuayi@huawei.com>
2024-05-16 07:24:04 +00:00

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<a name="EN-US_TOPIC_0000001188642140"></a><a name="EN-US_TOPIC_0000001188642140"></a>
<h1 class="topictitle1">DBA_TAB_PARTITIONS</h1>
<div id="body8662426"><p id="EN-US_TOPIC_0000001188642140__a22ea127845e84ad4a026509b76adc8c9"><strong id="EN-US_TOPIC_0000001188642140__b63114453321">DBA_TAB_PARTITIONS</strong> displays information about all partitions in the database.</p>
<div class="tablenoborder"><table cellpadding="4" cellspacing="0" summary="" id="EN-US_TOPIC_0000001188642140__t3c8ff3b999c34ad68784a5fe26202b3a" frame="border" border="1" rules="all"><thead align="left"><tr id="EN-US_TOPIC_0000001188642140__r7b54478e0bf540c8940ecea52deb483f"><th align="left" class="cellrowborder" valign="top" width="23.93%" id="mcps1.3.2.1.4.1.1"><p id="EN-US_TOPIC_0000001188642140__a07fe3651f76e4b06a408aaac82610f6e"><strong id="EN-US_TOPIC_0000001188642140__b84235270691445">Name</strong></p>
</th>
<th align="left" class="cellrowborder" valign="top" width="33.15%" id="mcps1.3.2.1.4.1.2"><p id="EN-US_TOPIC_0000001188642140__ac6d7fb92a1fe49db9ddb080ac1f66aa1">Type</p>
</th>
<th align="left" class="cellrowborder" valign="top" width="42.92%" id="mcps1.3.2.1.4.1.3"><p id="EN-US_TOPIC_0000001188642140__ae41259dae98545aebf035ee56ed661f6">Description</p>
</th>
</tr>
</thead>
<tbody><tr id="EN-US_TOPIC_0000001188642140__r7e959801d3c245578e5dbaff9a9d1c46"><td class="cellrowborder" valign="top" width="23.93%" headers="mcps1.3.2.1.4.1.1 "><p id="EN-US_TOPIC_0000001188642140__ac7d8b2bbb59e4801922d248696a9eb7d">table_owner</p>
</td>
<td class="cellrowborder" valign="top" width="33.15%" headers="mcps1.3.2.1.4.1.2 "><p id="EN-US_TOPIC_0000001188642140__ad4709f1494e94fe086edfd7fab5e6343">character varying(64)</p>
</td>
<td class="cellrowborder" valign="top" width="42.92%" headers="mcps1.3.2.1.4.1.3 "><p id="EN-US_TOPIC_0000001188642140__a3cd3c57a432246f8baf7e6442d3cbd27">Owner of the table that contains the partition</p>
</td>
</tr>
<tr id="EN-US_TOPIC_0000001188642140__rd0ffd83016604b3e84ee7c6d048f4cf9"><td class="cellrowborder" valign="top" width="23.93%" headers="mcps1.3.2.1.4.1.1 "><p id="EN-US_TOPIC_0000001188642140__aec4c47f401e04c8aa2eac6aac80c9a99">schema</p>
</td>
<td class="cellrowborder" valign="top" width="33.15%" headers="mcps1.3.2.1.4.1.2 "><p id="EN-US_TOPIC_0000001188642140__a2d4b8bd5e1f3409085bb3828426db573">character varying(64)</p>
</td>
<td class="cellrowborder" valign="top" width="42.92%" headers="mcps1.3.2.1.4.1.3 "><p id="EN-US_TOPIC_0000001188642140__a67c6e0c2a4ef4af4921ff3dda17a8092">Schema of the partitioned table</p>
</td>
</tr>
<tr id="EN-US_TOPIC_0000001188642140__r676b355a20974abfbb08c40f5816913a"><td class="cellrowborder" valign="top" width="23.93%" headers="mcps1.3.2.1.4.1.1 "><p id="EN-US_TOPIC_0000001188642140__a986fa45bb2574a5f8e4a943651359fd6">table_name</p>
</td>
<td class="cellrowborder" valign="top" width="33.15%" headers="mcps1.3.2.1.4.1.2 "><p id="EN-US_TOPIC_0000001188642140__a253a217caf044ec69308d2952580957b">character varying(64)</p>
</td>
<td class="cellrowborder" valign="top" width="42.92%" headers="mcps1.3.2.1.4.1.3 "><p id="EN-US_TOPIC_0000001188642140__a48660547799241b089885bb9e12b49f6">Table name</p>
</td>
</tr>
<tr id="EN-US_TOPIC_0000001188642140__r960d2d2a89e34e27b73170e8e3c065b7"><td class="cellrowborder" valign="top" width="23.93%" headers="mcps1.3.2.1.4.1.1 "><p id="EN-US_TOPIC_0000001188642140__aa85bb78c5931480a83f4a025cb7db077">partition_name</p>
</td>
<td class="cellrowborder" valign="top" width="33.15%" headers="mcps1.3.2.1.4.1.2 "><p id="EN-US_TOPIC_0000001188642140__a4d32cda5114c4faca429a1474e870da8">character varying(64)</p>
</td>
<td class="cellrowborder" valign="top" width="42.92%" headers="mcps1.3.2.1.4.1.3 "><p id="EN-US_TOPIC_0000001188642140__a9172d0928bd0401dbbb5f49ce74ebc69">Name of the partition</p>
</td>
</tr>
<tr id="EN-US_TOPIC_0000001188642140__r080f79734bb1415c8a75b0eccac7f16b"><td class="cellrowborder" valign="top" width="23.93%" headers="mcps1.3.2.1.4.1.1 "><p id="EN-US_TOPIC_0000001188642140__ad3001feb017f4ca58ab8fcabc95c2d0c">high_value</p>
</td>
<td class="cellrowborder" valign="top" width="33.15%" headers="mcps1.3.2.1.4.1.2 "><p id="EN-US_TOPIC_0000001188642140__ae222d374710444e18c28c264e073e4df">text</p>
</td>
<td class="cellrowborder" valign="top" width="42.92%" headers="mcps1.3.2.1.4.1.3 "><p id="EN-US_TOPIC_0000001188642140__p19382059151110">Upper boundary of a range partition or boundary value set of a list partition</p>
<p id="EN-US_TOPIC_0000001188642140__p6237103615337">Reserved field for forward compatibility. The parameter <strong id="EN-US_TOPIC_0000001188642140__b1020317116438">pretty_high_value</strong> is added in version 8.1.3 to record the information.</p>
</td>
</tr>
<tr id="EN-US_TOPIC_0000001188642140__row1578164084017"><td class="cellrowborder" valign="top" width="23.93%" headers="mcps1.3.2.1.4.1.1 "><p id="EN-US_TOPIC_0000001188642140__p77911400406">pretty_high_value</p>
</td>
<td class="cellrowborder" valign="top" width="33.15%" headers="mcps1.3.2.1.4.1.2 "><p id="EN-US_TOPIC_0000001188642140__p4794409403">text</p>
</td>
<td class="cellrowborder" valign="top" width="42.92%" headers="mcps1.3.2.1.4.1.3 "><p id="EN-US_TOPIC_0000001188642140__p779340124018">Upper boundary of a range partition or boundary value set of a list partition</p>
<p id="EN-US_TOPIC_0000001188642140__p4842653145217">The query result is the instant decompilation output of the partition boundary expression. The output of this column is more detailed than that of <strong id="EN-US_TOPIC_0000001188642140__b67351620144312">high_value</strong>. The output information can be collation and column data type.</p>
</td>
</tr>
<tr id="EN-US_TOPIC_0000001188642140__rbc661829aa784263ae28b9b49af02efd"><td class="cellrowborder" valign="top" width="23.93%" headers="mcps1.3.2.1.4.1.1 "><p id="EN-US_TOPIC_0000001188642140__a467612c922284d739ce2d969295605b0">tablespace_name</p>
</td>
<td class="cellrowborder" valign="top" width="33.15%" headers="mcps1.3.2.1.4.1.2 "><p id="EN-US_TOPIC_0000001188642140__a393164d49f654144ab808699a5a20bd4">name</p>
</td>
<td class="cellrowborder" valign="top" width="42.92%" headers="mcps1.3.2.1.4.1.3 "><p id="EN-US_TOPIC_0000001188642140__ad55f6bd3c5344c5e8d6d91feccf69f20">Name of the tablespace that contains the partition</p>
</td>
</tr>
</tbody>
</table>
</div>
<div class="section" id="EN-US_TOPIC_0000001188642140__section8474154095318"><h4 class="sectiontitle">Example</h4><p id="EN-US_TOPIC_0000001188642140__p19995655818">View the partition information of a partitioned table:</p>
<div class="codecoloring" codetype="Sql" id="EN-US_TOPIC_0000001188642140__screen64965121865"><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">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="n">web_returns_p1</span>
<span class="p">(</span>
<span class="w"> </span><span class="n">wr_returned_date_sk</span><span class="w"> </span><span class="nb">integer</span><span class="p">,</span>
<span class="w"> </span><span class="n">wr_returned_time_sk</span><span class="w"> </span><span class="nb">integer</span><span class="p">,</span>
<span class="w"> </span><span class="n">wr_item_sk</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="n">wr_refunded_customer_sk</span><span class="w"> </span><span class="nb">integer</span>
<span class="p">)</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">column</span><span class="p">)</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="n">wr_item_sk</span><span class="p">)</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="n">wr_returned_date_sk</span><span class="p">)</span>
<span class="p">(</span>
<span class="w"> </span><span class="n">PARTITION</span><span class="w"> </span><span class="n">p2016</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">20161231</span><span class="p">),</span>
<span class="w"> </span><span class="n">PARTITION</span><span class="w"> </span><span class="n">p2017</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">20171231</span><span class="p">),</span>
<span class="w"> </span><span class="n">PARTITION</span><span class="w"> </span><span class="n">p2018</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">20181231</span><span class="p">),</span>
<span class="w"> </span><span class="n">PARTITION</span><span class="w"> </span><span class="n">p2019</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">20191231</span><span class="p">),</span>
<span class="w"> </span><span class="n">PARTITION</span><span class="w"> </span><span class="n">p2020</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="k">maxvalue</span><span class="p">)</span>
<span class="p">);</span>
<span class="k">SELECT</span><span class="w"> </span><span class="o">*</span><span class="w"> </span><span class="k">FROM</span><span class="w"> </span><span class="n">dba_tab_partitions</span><span class="w"> </span><span class="k">WHERE</span><span class="w"> </span><span class="k">table_name</span><span class="o">=</span><span class="s1">'web_returns_p1'</span><span class="p">;</span>
<span class="w"> </span><span class="n">table_owner</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="k">schema</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="k">table_name</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">partition_name</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">high_value</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">pretty_high_value</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">tablespace_name</span>
<span class="c1">-------------+--------+----------------+----------------+------------+-------------------+--------------------</span>
<span class="w"> </span><span class="n">dbadmin</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="k">public</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">web_returns_p1</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">p2016</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">20161231</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">20161231</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="k">DEFAULT</span><span class="w"> </span><span class="n">TABLESPACE</span>
<span class="w"> </span><span class="n">dbadmin</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="k">public</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">web_returns_p1</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">p2017</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">20171231</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">20171231</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="k">DEFAULT</span><span class="w"> </span><span class="n">TABLESPACE</span>
<span class="w"> </span><span class="n">dbadmin</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="k">public</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">web_returns_p1</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">p2018</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">20181231</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">20181231</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="k">DEFAULT</span><span class="w"> </span><span class="n">TABLESPACE</span>
<span class="w"> </span><span class="n">dbadmin</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="k">public</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">web_returns_p1</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">p2019</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">20191231</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">20191231</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="k">DEFAULT</span><span class="w"> </span><span class="n">TABLESPACE</span>
<span class="w"> </span><span class="n">dbadmin</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="k">public</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">web_returns_p1</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">p2020</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="k">MAXVALUE</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="k">MAXVALUE</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="k">DEFAULT</span><span class="w"> </span><span class="n">TABLESPACE</span>
<span class="p">(</span><span class="mi">5</span><span class="w"> </span><span class="k">rows</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="dws_04_0639.html">System Views</a></div>
</div>
</div>
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