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| gitHub |
| <span><svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15" class="icon outbound"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg> <span class="sr-only">(opens new window)</span></span></a></nav> <ul class="sidebar-links"><li><section class="sidebar-group depth-0"><p class="sidebar-heading open"><span>IoTDB用户手册 (V0.11.x)</span> <!----></p> <!----></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>开始</span> <span class="arrow right"></span></p> <!----></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>概述</span> <span class="arrow right"></span></p> <!----></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>概念</span> <span class="arrow right"></span></p> <!----></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>服务器端</span> <span class="arrow right"></span></p> <!----></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>客户端</span> <span class="arrow right"></span></p> <!----></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>操作指南</span> <span class="arrow right"></span></p> <!----></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>系统工具</span> <span class="arrow right"></span></p> <!----></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>生态集成</span> <span class="arrow right"></span></p> <!----></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>系统设计</span> <span class="arrow right"></span></p> <!----></section></li></ul> </aside> <main class="page"> <div class="content content__default"><h1 id="csv-工具"><a href="#csv-工具" class="header-anchor">#</a> CSV 工具</h1> <p>CSV工具可帮您将CSV格式的数据导入到IoTDB或者将数据从IoTDB导出到CSV文件。</p> <h2 id="使用-import-csv-sh"><a href="#使用-import-csv-sh" class="header-anchor">#</a> 使用 import-csv.sh</h2> <h3 id="创建元数据-可选"><a href="#创建元数据-可选" class="header-anchor">#</a> 创建元数据（可选）</h3> <div class="language-sql line-numbers-mode"><pre class="language-sql"><code><span class="token keyword">SET</span> STORAGE <span class="token keyword">GROUP</span> <span class="token keyword">TO</span> root<span class="token punctuation">.</span>fit<span class="token punctuation">.</span>d1<span class="token punctuation">;</span> |
| <span class="token keyword">SET</span> STORAGE <span class="token keyword">GROUP</span> <span class="token keyword">TO</span> root<span class="token punctuation">.</span>fit<span class="token punctuation">.</span>d2<span class="token punctuation">;</span> |
| <span class="token keyword">SET</span> STORAGE <span class="token keyword">GROUP</span> <span class="token keyword">TO</span> root<span class="token punctuation">.</span>fit<span class="token punctuation">.</span>p<span class="token punctuation">;</span> |
| <span class="token keyword">CREATE</span> TIMESERIES root<span class="token punctuation">.</span>fit<span class="token punctuation">.</span>d1<span class="token punctuation">.</span>s1 <span class="token keyword">WITH</span> DATATYPE<span class="token operator">=</span>INT32<span class="token punctuation">,</span>ENCODING<span class="token operator">=</span>RLE<span class="token punctuation">;</span> |
| <span class="token keyword">CREATE</span> TIMESERIES root<span class="token punctuation">.</span>fit<span class="token punctuation">.</span>d1<span class="token punctuation">.</span>s2 <span class="token keyword">WITH</span> DATATYPE<span class="token operator">=</span><span class="token keyword">TEXT</span><span class="token punctuation">,</span>ENCODING<span class="token operator">=</span>PLAIN<span class="token punctuation">;</span> |
| <span class="token keyword">CREATE</span> TIMESERIES root<span class="token punctuation">.</span>fit<span class="token punctuation">.</span>d2<span class="token punctuation">.</span>s1 <span class="token keyword">WITH</span> DATATYPE<span class="token operator">=</span>INT32<span class="token punctuation">,</span>ENCODING<span class="token operator">=</span>RLE<span class="token punctuation">;</span> |
| <span class="token keyword">CREATE</span> TIMESERIES root<span class="token punctuation">.</span>fit<span class="token punctuation">.</span>d2<span class="token punctuation">.</span>s3 <span class="token keyword">WITH</span> DATATYPE<span class="token operator">=</span>INT32<span class="token punctuation">,</span>ENCODING<span class="token operator">=</span>RLE<span class="token punctuation">;</span> |
| <span class="token keyword">CREATE</span> TIMESERIES root<span class="token punctuation">.</span>fit<span class="token punctuation">.</span>p<span class="token punctuation">.</span>s1 <span class="token keyword">WITH</span> DATATYPE<span class="token operator">=</span>INT32<span class="token punctuation">,</span>ENCODING<span class="token operator">=</span>RLE<span class="token punctuation">;</span> |
| </code></pre> <div class="line-numbers-wrapper"><span class="line-number">1</span><br><span class="line-number">2</span><br><span class="line-number">3</span><br><span class="line-number">4</span><br><span class="line-number">5</span><br><span class="line-number">6</span><br><span class="line-number">7</span><br><span class="line-number">8</span><br></div></div><p>IoTDB具有类型推断的能力，因此在数据导入前创建元数据不是必须的。但我们仍然推荐在使用CSV导入工具导入数据前创建元数据，因为这可以避免不必要的类型转换错误。</p> <h3 id="待导入-csv-文件示例"><a href="#待导入-csv-文件示例" class="header-anchor">#</a> 待导入 CSV 文件示例</h3> <div class="language-sql line-numbers-mode"><pre class="language-sql"><code><span class="token keyword">Time</span><span class="token punctuation">,</span>root<span class="token punctuation">.</span>fit<span class="token punctuation">.</span>d1<span class="token punctuation">.</span>s1<span class="token punctuation">,</span>root<span class="token punctuation">.</span>fit<span class="token punctuation">.</span>d1<span class="token punctuation">.</span>s2<span class="token punctuation">,</span>root<span class="token punctuation">.</span>fit<span class="token punctuation">.</span>d2<span class="token punctuation">.</span>s1<span class="token punctuation">,</span>root<span class="token punctuation">.</span>fit<span class="token punctuation">.</span>d2<span class="token punctuation">.</span>s3<span class="token punctuation">,</span>root<span class="token punctuation">.</span>fit<span class="token punctuation">.</span>p<span class="token punctuation">.</span>s1 |
| <span class="token number">1</span><span class="token punctuation">,</span><span class="token number">100</span><span class="token punctuation">,</span>hello<span class="token punctuation">,</span><span class="token number">200</span><span class="token punctuation">,</span><span class="token number">300</span><span class="token punctuation">,</span><span class="token number">400</span> |
| <span class="token number">2</span><span class="token punctuation">,</span><span class="token number">500</span><span class="token punctuation">,</span>world<span class="token punctuation">,</span><span class="token number">600</span><span class="token punctuation">,</span><span class="token number">700</span><span class="token punctuation">,</span><span class="token number">800</span> |
| <span class="token number">3</span><span class="token punctuation">,</span><span class="token number">900</span><span class="token punctuation">,</span><span class="token string">"hello, \"world\""</span><span class="token punctuation">,</span><span class="token number">1000</span><span class="token punctuation">,</span><span class="token number">1100</span><span class="token punctuation">,</span><span class="token number">1200</span> |
| </code></pre> <div class="line-numbers-wrapper"><span class="line-number">1</span><br><span class="line-number">2</span><br><span class="line-number">3</span><br><span class="line-number">4</span><br></div></div><h3 id="运行方法"><a href="#运行方法" class="header-anchor">#</a> 运行方法</h3> <div class="language-shell line-numbers-mode"><pre class="language-shell"><code><span class="token comment"># Unix/OS X</span> |
| <span class="token operator">></span> tools/import-csv.sh -h <span class="token operator"><</span>ip<span class="token operator">></span> -p <span class="token operator"><</span>port<span class="token operator">></span> -u <span class="token operator"><</span>username<span class="token operator">></span> -pw <span class="token operator"><</span>password<span class="token operator">></span> -f <span class="token operator"><</span>xxx.csv<span class="token operator">></span> |
| |
| <span class="token comment"># Windows</span> |
| <span class="token operator">></span> tools<span class="token punctuation">\</span>import-csv.bat -h <span class="token operator"><</span>ip<span class="token operator">></span> -p <span class="token operator"><</span>port<span class="token operator">></span> -u <span class="token operator"><</span>username<span class="token operator">></span> -pw <span class="token operator"><</span>password<span class="token operator">></span> -f <span class="token operator"><</span>xxx.csv<span class="token operator">></span> |
| </code></pre> <div class="line-numbers-wrapper"><span class="line-number">1</span><br><span class="line-number">2</span><br><span class="line-number">3</span><br><span class="line-number">4</span><br><span class="line-number">5</span><br></div></div><h3 id="运行示例"><a href="#运行示例" class="header-anchor">#</a> 运行示例</h3> <div class="language-shell line-numbers-mode"><pre class="language-shell"><code><span class="token comment"># Unix/OS X</span> |
| <span class="token operator">></span> tools/import-csv.sh -h <span class="token number">127.0</span>.0.1 -p <span class="token number">6667</span> -u root -pw root -f example-filename.csv |
| |
| <span class="token comment"># Windows</span> |
| <span class="token operator">></span> tools<span class="token punctuation">\</span>import-csv.bat -h <span class="token number">127.0</span>.0.1 -p <span class="token number">6667</span> -u root -pw root -f example-filename.csv |
| </code></pre> <div class="line-numbers-wrapper"><span class="line-number">1</span><br><span class="line-number">2</span><br><span class="line-number">3</span><br><span class="line-number">4</span><br><span class="line-number">5</span><br></div></div><h3 id="注意事项"><a href="#注意事项" class="header-anchor">#</a> 注意事项</h3> <p>注意，在导入数据前，需要特殊处理下列的字符：</p> <ol><li><code>,</code> : 包含<code>,</code>的字段需要使用单引号或者双引号括起来</li> <li><code>"</code> : "字段中的<code>"</code>需要被替换成转义字符<code>\"</code>或者用<code>\'</code>将字段括起来。</li> <li><code>'</code> : "字段中的<code>'</code>需要被替换成转义字符<code>\'</code>或者用<code>\"</code>将字段括起来。</li> <li>你可以输入时间格式像<code>yyyy-MM-dd'T'HH:mm:ss</code>, <code>yyy-MM-dd HH:mm:ss</code>, 或者<code>yyyy-MM-dd'T'HH:mm:ss.SSSZ</code>.</li></ol> <h2 id="使用-export-csv-sh"><a href="#使用-export-csv-sh" class="header-anchor">#</a> 使用 export-csv.sh</h2> <h3 id="运行方法-2"><a href="#运行方法-2" class="header-anchor">#</a> 运行方法</h3> <div class="language-shell line-numbers-mode"><pre class="language-shell"><code><span class="token comment"># Unix/OS X</span> |
| <span class="token operator">></span> tools/export-csv.sh -h <span class="token operator"><</span>ip<span class="token operator">></span> -p <span class="token operator"><</span>port<span class="token operator">></span> -u <span class="token operator"><</span>username<span class="token operator">></span> -pw <span class="token operator"><</span>password<span class="token operator">></span> -td <span class="token operator"><</span>directory<span class="token operator">></span> <span class="token punctuation">[</span>-tf <span class="token operator"><</span>time-format<span class="token operator">></span> -s <span class="token operator"><</span>sqlfile<span class="token operator">></span><span class="token punctuation">]</span> |
| |
| <span class="token comment"># Windows</span> |
| <span class="token operator">></span> tools<span class="token punctuation">\</span>export-csv.bat -h <span class="token operator"><</span>ip<span class="token operator">></span> -p <span class="token operator"><</span>port<span class="token operator">></span> -u <span class="token operator"><</span>username<span class="token operator">></span> -pw <span class="token operator"><</span>password<span class="token operator">></span> -td <span class="token operator"><</span>directory<span class="token operator">></span> <span class="token punctuation">[</span>-tf <span class="token operator"><</span>time-format<span class="token operator">></span> -s <span class="token operator"><</span>sqlfile<span class="token operator">></span><span class="token punctuation">]</span> |
| </code></pre> <div class="line-numbers-wrapper"><span class="line-number">1</span><br><span class="line-number">2</span><br><span class="line-number">3</span><br><span class="line-number">4</span><br><span class="line-number">5</span><br></div></div><p>在运行导出脚本之后，您需要输入一些查询或指定一些SQL文件。如果在一个SQL文件中有多个SQL，SQL应该被换行符分割。</p> <h3 id="sql文件示例"><a href="#sql文件示例" class="header-anchor">#</a> SQL文件示例</h3> <div class="language-sql line-numbers-mode"><pre class="language-sql"><code><span class="token keyword">select</span> <span class="token operator">*</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>fit<span class="token punctuation">.</span>d1 |
| <span class="token keyword">select</span> <span class="token operator">*</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span>sg1<span class="token punctuation">.</span>d1 |
| </code></pre> <div class="line-numbers-wrapper"><span class="line-number">1</span><br><span class="line-number">2</span><br></div></div><h3 id="运行示例-2"><a href="#运行示例-2" class="header-anchor">#</a> 运行示例</h3> <div class="language-shell line-numbers-mode"><pre class="language-shell"><code><span class="token comment"># Unix/OS X</span> |
| <span class="token operator">></span> tools/export-csv.sh -h <span class="token number">127.0</span>.0.1 -p <span class="token number">6667</span> -u root -pw root -td ./ |
| <span class="token comment"># Or</span> |
| <span class="token operator">></span> tools/export-csv.sh -h <span class="token number">127.0</span>.0.1 -p <span class="token number">6667</span> -u root -pw root -td ./ -tf yyyy-MM-dd<span class="token punctuation">\</span> HH:mm:ss |
| <span class="token comment"># Or</span> |
| <span class="token operator">></span> tools/export-csv.sh -h <span class="token number">127.0</span>.0.1 -p <span class="token number">6667</span> -u root -pw root -td ./ -s sql.txt |
| <span class="token comment"># Or</span> |
| <span class="token operator">></span> tools/export-csv.sh -h <span class="token number">127.0</span>.0.1 -p <span class="token number">6667</span> -u root -pw root -td ./ -tf yyyy-MM-dd<span class="token punctuation">\</span> HH:mm:ss -s sql.txt |
| |
| <span class="token comment"># Windows</span> |
| <span class="token operator">></span> tools/export-csv.bat -h <span class="token number">127.0</span>.0.1 -p <span class="token number">6667</span> -u root -pw root -td ./ |
| <span class="token comment"># Or</span> |
| <span class="token operator">></span> tools/export-csv.bat -h <span class="token number">127.0</span>.0.1 -p <span class="token number">6667</span> -u root -pw root -td ./ -tf yyyy-MM-dd<span class="token punctuation">\</span> HH:mm:ss |
| <span class="token comment"># Or</span> |
| <span class="token operator">></span> tools/export-csv.bat -h <span class="token number">127.0</span>.0.1 -p <span class="token number">6667</span> -u root -pw root -td ./ -s sql.txt |
| <span class="token comment"># Or</span> |
| <span class="token operator">></span> tools/export-csv.bat -h <span class="token number">127.0</span>.0.1 -p <span class="token number">6667</span> -u root -pw root -td ./ -tf yyyy-MM-dd<span class="token punctuation">\</span> HH:mm:ss -s sql.txt |
| </code></pre> <div class="line-numbers-wrapper"><span class="line-number">1</span><br><span class="line-number">2</span><br><span class="line-number">3</span><br><span class="line-number">4</span><br><span class="line-number">5</span><br><span class="line-number">6</span><br><span class="line-number">7</span><br><span class="line-number">8</span><br><span class="line-number">9</span><br><span class="line-number">10</span><br><span class="line-number">11</span><br><span class="line-number">12</span><br><span class="line-number">13</span><br><span class="line-number">14</span><br><span class="line-number">15</span><br><span class="line-number">16</span><br><span class="line-number">17</span><br></div></div><h3 id="注意事项-2"><a href="#注意事项-2" class="header-anchor">#</a> 注意事项</h3> <p>注意，如果导出字段存在如下特殊字符：</p> <ol><li><code>,</code> : 整个字段会被用<code>"</code>括起来。</li> <li><code>"</code> : 整个字段会被用<code>"</code>括起来且<code>"</code>会被替换为<code>\"</code>。</li></ol></div> <!----> <p style="text-align: center;">Copyright © 2021 The Apache Software Foundation.<br> |
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