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class="vp-breadcrumb disable"></nav><div class="vp-page-title"><h1><!---->数据写入</h1><div class="page-info"><!----><!----><span class="page-date-info" aria-label="写作日期📅" data-balloon-pos="up"><svg xmlns="http://www.w3.org/2000/svg" class="icon calendar-icon" viewBox="0 0 1024 1024" fill="currentColor" aria-label="calendar icon" name="calendar"><path d="M716.4 110.137c0-18.753-14.72-33.473-33.472-33.473-18.753 0-33.473 14.72-33.473 33.473v33.473h66.993v-33.473zm-334.87 0c0-18.753-14.72-33.473-33.473-33.473s-33.52 14.72-33.52 33.473v33.473h66.993v-33.473zm468.81 33.52H716.4v100.465c0 18.753-14.72 33.473-33.472 33.473a33.145 33.145 0 01-33.473-33.473V143.657H381.53v100.465c0 18.753-14.72 33.473-33.473 33.473a33.145 33.145 0 01-33.473-33.473V143.657H180.6A134.314 134.314 0 0046.66 277.595v535.756A134.314 134.314 0 00180.6 947.289h669.74a134.36 134.36 0 00133.94-133.938V277.595a134.314 134.314 0 00-133.94-133.938zm33.473 267.877H147.126a33.145 33.145 0 01-33.473-33.473c0-18.752 14.72-33.473 33.473-33.473h736.687c18.752 0 33.472 14.72 33.472 33.473a33.145 33.145 0 01-33.472 33.473z"></path></svg><span data-allow-mismatch="text">2023/7/10</span><meta property="datePublished" content="2023-07-10T03:11:17.000Z"></span><!----><span class="page-reading-time-info" aria-label="阅读时间⌛" data-balloon-pos="up"><svg xmlns="http://www.w3.org/2000/svg" class="icon timer-icon" viewBox="0 0 1024 1024" fill="currentColor" aria-label="timer icon" name="timer"><path d="M799.387 122.15c4.402-2.978 7.38-7.897 7.38-13.463v-1.165c0-8.933-7.38-16.312-16.312-16.312H256.33c-8.933 0-16.311 7.38-16.311 16.312v1.165c0 5.825 2.977 10.874 7.637 13.592 4.143 194.44 97.22 354.963 220.201 392.763-122.204 37.542-214.893 196.511-220.2 389.397-4.661 5.049-7.638 11.651-7.638 19.03v5.825h566.49v-5.825c0-7.379-2.849-13.981-7.509-18.9-5.049-193.016-97.867-351.985-220.2-389.527 123.24-37.67 216.446-198.453 220.588-392.892zM531.16 450.445v352.632c117.674 1.553 211.787 40.778 211.787 88.676H304.097c0-48.286 95.149-87.382 213.728-88.676V450.445c-93.077-3.107-167.901-81.297-167.901-177.093 0-8.803 6.99-15.793 15.793-15.793 8.803 0 15.794 6.99 15.794 15.793 0 80.261 63.69 145.635 142.01 145.635s142.011-65.374 142.011-145.635c0-8.803 6.99-15.793 15.794-15.793s15.793 6.99 15.793 15.793c0 95.019-73.789 172.82-165.96 177.093z"></path></svg><span>大约 6 分钟</span><meta property="timeRequired" content="PT6M"></span><!----><!----></div><hr></div><!----><div class="" vp-content><!----><div id="markdown-content"><h1 id="数据写入" tabindex="-1"><a class="header-anchor" href="#数据写入"><span>数据写入</span></a></h1><h2 id="cli写入数据" tabindex="-1"><a class="header-anchor" href="#cli写入数据"><span>CLI写入数据</span></a></h2><p>IoTDB 为用户提供多种插入实时数据的方式，例如在 <a class="route-link" href="/zh/UserGuide/dev-1.3/Tools-System/CLI.html">Cli/Shell 工具</a> 中直接输入插入数据的 INSERT 语句，或使用 Java API（标准 <a class="route-link" href="/zh/UserGuide/dev-1.3/API/Programming-JDBC.html">Java JDBC</a> 接口）单条或批量执行插入数据的 INSERT 语句。</p><p>本节主要为您介绍实时数据接入的 INSERT 语句在场景中的实际使用示例，有关 INSERT SQL 语句的详细语法请参见本文 <a class="route-link" href="/zh/UserGuide/dev-1.3/SQL-Manual/SQL-Manual.html#%E5%86%99%E5%85%A5%E6%95%B0%E6%8D%AE">INSERT 语句</a> 节。</p><p>注：写入重复时间戳的数据则原时间戳数据被覆盖，可视为更新数据。</p><h3 id="使用-insert-语句" tabindex="-1"><a class="header-anchor" href="#使用-insert-语句"><span>使用 INSERT 语句</span></a></h3><p>使用 INSERT 语句可以向指定的已经创建的一条或多条时间序列中插入数据。对于每一条数据，均由一个时间戳类型的时间戳和一个数值或布尔值、字符串类型的传感器采集值组成。</p><p>在本节的场景实例下，以其中的两个时间序列<code>root.ln.wf02.wt02.status</code>和<code>root.ln.wf02.wt02.hardware</code>为例 ，它们的数据类型分别为 BOOLEAN 和 TEXT。</p><p>单列数据插入示例代码如下：</p><div class="language-sql line-numbers-mode" data-highlighter="shiki" data-ext="sql" style="background-color:#282c34;color:#abb2bf;"><pre class="shiki one-dark-pro vp-code"><code class="language-sql"><span class="line"><span style="color:#ABB2BF;">IoTDB </span><span style="color:#56B6C2;">></span><span style="color:#C678DD;"> insert into</span><span style="color:#D19A66;"> root</span><span style="color:#ABB2BF;">.</span><span style="color:#D19A66;">ln</span><span style="color:#ABB2BF;">.</span><span style="color:#D19A66;">wf02</span><span style="color:#ABB2BF;">.</span><span style="color:#D19A66;">wt02</span><span style="color:#ABB2BF;">(</span><span style="color:#C678DD;">timestamp</span><span style="color:#ABB2BF;">,</span><span style="color:#C678DD;">status</span><span style="color:#ABB2BF;">) </span><span style="color:#C678DD;">values</span><span style="color:#ABB2BF;">(</span><span style="color:#D19A66;">1</span><span style="color:#ABB2BF;">,true)</span></span> |
| <span class="line"><span style="color:#ABB2BF;">IoTDB </span><span style="color:#56B6C2;">></span><span style="color:#C678DD;"> insert into</span><span style="color:#D19A66;"> root</span><span style="color:#ABB2BF;">.</span><span style="color:#D19A66;">ln</span><span style="color:#ABB2BF;">.</span><span style="color:#D19A66;">wf02</span><span style="color:#ABB2BF;">.</span><span style="color:#D19A66;">wt02</span><span style="color:#ABB2BF;">(</span><span style="color:#C678DD;">timestamp</span><span style="color:#ABB2BF;">,hardware) </span><span style="color:#C678DD;">values</span><span style="color:#ABB2BF;">(</span><span style="color:#D19A66;">1</span><span style="color:#ABB2BF;">, </span><span style="color:#98C379;">'v1'</span><span style="color:#ABB2BF;">)</span></span></code></pre><div class="line-numbers" aria-hidden="true" style="counter-reset:line-number 0;"><div class="line-number"></div><div class="line-number"></div></div></div><p>以上示例代码将长整型的 timestamp 以及值为 true 的数据插入到时间序列<code>root.ln.wf02.wt02.status</code>中和将长整型的 timestamp 以及值为”v1”的数据插入到时间序列<code>root.ln.wf02.wt02.hardware</code>中。执行成功后会返回执行时间，代表数据插入已完成。</p><blockquote><p>注意：在 IoTDB 中，TEXT 类型的数据单双引号都可以来表示，上面的插入语句是用的是双引号表示 TEXT 类型数据，下面的示例将使用单引号表示 TEXT 类型数据。</p></blockquote><p>INSERT 语句还可以支持在同一个时间点下多列数据的插入，同时向 2 时间点插入上述两个时间序列的值，多列数据插入示例代码如下：</p><div class="language-sql line-numbers-mode" data-highlighter="shiki" data-ext="sql" style="background-color:#282c34;color:#abb2bf;"><pre class="shiki one-dark-pro vp-code"><code class="language-sql"><span class="line"><span style="color:#ABB2BF;">IoTDB </span><span style="color:#56B6C2;">></span><span style="color:#C678DD;"> insert into</span><span style="color:#D19A66;"> root</span><span style="color:#ABB2BF;">.</span><span style="color:#D19A66;">ln</span><span style="color:#ABB2BF;">.</span><span style="color:#D19A66;">wf02</span><span style="color:#ABB2BF;">.</span><span style="color:#D19A66;">wt02</span><span style="color:#ABB2BF;">(</span><span style="color:#C678DD;">timestamp</span><span style="color:#ABB2BF;">, </span><span style="color:#C678DD;">status</span><span style="color:#ABB2BF;">, hardware) </span><span style="color:#C678DD;">values</span><span style="color:#ABB2BF;"> (</span><span style="color:#D19A66;">2</span><span style="color:#ABB2BF;">, false, </span><span style="color:#98C379;">'v2'</span><span style="color:#ABB2BF;">)</span></span></code></pre><div class="line-numbers" aria-hidden="true" style="counter-reset:line-number 0;"><div class="line-number"></div></div></div><p>此外，INSERT 语句支持一次性插入多行数据，同时向 2 个不同时间点插入上述时间序列的值，示例代码如下：</p><div class="language-sql line-numbers-mode" data-highlighter="shiki" data-ext="sql" style="background-color:#282c34;color:#abb2bf;"><pre class="shiki one-dark-pro vp-code"><code class="language-sql"><span class="line"><span style="color:#ABB2BF;">IoTDB </span><span style="color:#56B6C2;">></span><span style="color:#C678DD;"> insert into</span><span style="color:#D19A66;"> root</span><span style="color:#ABB2BF;">.</span><span style="color:#D19A66;">ln</span><span style="color:#ABB2BF;">.</span><span style="color:#D19A66;">wf02</span><span style="color:#ABB2BF;">.</span><span style="color:#D19A66;">wt02</span><span style="color:#ABB2BF;">(</span><span style="color:#C678DD;">timestamp</span><span style="color:#ABB2BF;">, </span><span style="color:#C678DD;">status</span><span style="color:#ABB2BF;">, hardware) </span><span style="color:#C678DD;">VALUES</span><span style="color:#ABB2BF;"> (</span><span style="color:#D19A66;">3</span><span style="color:#ABB2BF;">, false, </span><span style="color:#98C379;">'v3'</span><span style="color:#ABB2BF;">),(</span><span style="color:#D19A66;">4</span><span style="color:#ABB2BF;">, true, </span><span style="color:#98C379;">'v4'</span><span style="color:#ABB2BF;">)</span></span></code></pre><div class="line-numbers" aria-hidden="true" style="counter-reset:line-number 0;"><div class="line-number"></div></div></div><p>插入数据后我们可以使用 SELECT 语句简单查询已插入的数据。</p><div class="language-sql line-numbers-mode" data-highlighter="shiki" data-ext="sql" style="background-color:#282c34;color:#abb2bf;"><pre class="shiki one-dark-pro vp-code"><code class="language-sql"><span class="line"><span style="color:#ABB2BF;">IoTDB </span><span style="color:#56B6C2;">></span><span style="color:#C678DD;"> select</span><span style="color:#ABB2BF;"> * </span><span style="color:#C678DD;">from</span><span style="color:#D19A66;"> root</span><span style="color:#ABB2BF;">.</span><span style="color:#D19A66;">ln</span><span style="color:#ABB2BF;">.</span><span style="color:#D19A66;">wf02</span><span style="color:#ABB2BF;">.</span><span style="color:#D19A66;">wt02</span><span style="color:#C678DD;"> where</span><span style="color:#C678DD;"> time</span><span style="color:#56B6C2;"> <</span><span style="color:#D19A66;"> 5</span></span></code></pre><div class="line-numbers" aria-hidden="true" style="counter-reset:line-number 0;"><div class="line-number"></div></div></div><p>结果如图所示。由查询结果可以看出，单列、多列数据的插入操作正确执行。</p><div class="language- line-numbers-mode" data-highlighter="shiki" data-ext="" style="background-color:#282c34;color:#abb2bf;"><pre class="shiki one-dark-pro vp-code"><code class="language-"><span class="line"><span>+-----------------------------+--------------------------+------------------------+</span></span> |
| <span class="line"><span>| Time|root.ln.wf02.wt02.hardware|root.ln.wf02.wt02.status|</span></span> |
| <span class="line"><span>+-----------------------------+--------------------------+------------------------+</span></span> |
| <span class="line"><span>|1970-01-01T08:00:00.001+08:00| v1| true|</span></span> |
| <span class="line"><span>|1970-01-01T08:00:00.002+08:00| v2| false|</span></span> |
| <span class="line"><span>|1970-01-01T08:00:00.003+08:00| v3| false|</span></span> |
| <span class="line"><span>|1970-01-01T08:00:00.004+08:00| v4| true|</span></span> |
| <span class="line"><span>+-----------------------------+--------------------------+------------------------+</span></span> |
| <span class="line"><span>Total line number = 4</span></span> |
| <span class="line"><span>It costs 0.004s</span></span></code></pre><div class="line-numbers" aria-hidden="true" style="counter-reset:line-number 0;"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><p>此外，我们可以省略 timestamp 列，此时系统将使用当前的系统时间作为该数据点的时间戳，示例代码如下：</p><div class="language-sql line-numbers-mode" data-highlighter="shiki" data-ext="sql" style="background-color:#282c34;color:#abb2bf;"><pre class="shiki one-dark-pro vp-code"><code class="language-sql"><span class="line"><span style="color:#ABB2BF;">IoTDB </span><span style="color:#56B6C2;">></span><span style="color:#C678DD;"> insert into</span><span style="color:#D19A66;"> root</span><span style="color:#ABB2BF;">.</span><span style="color:#D19A66;">ln</span><span style="color:#ABB2BF;">.</span><span style="color:#D19A66;">wf02</span><span style="color:#ABB2BF;">.</span><span style="color:#D19A66;">wt02</span><span style="color:#ABB2BF;">(</span><span style="color:#C678DD;">status</span><span style="color:#ABB2BF;">, hardware) </span><span style="color:#C678DD;">values</span><span style="color:#ABB2BF;"> (false, </span><span style="color:#98C379;">'v2'</span><span style="color:#ABB2BF;">)</span></span></code></pre><div class="line-numbers" aria-hidden="true" style="counter-reset:line-number 0;"><div class="line-number"></div></div></div><p><strong>注意：</strong> 当一次插入多行数据时必须指定时间戳。</p><h3 id="向对齐时间序列插入数据" tabindex="-1"><a class="header-anchor" href="#向对齐时间序列插入数据"><span>向对齐时间序列插入数据</span></a></h3><p>向对齐时间序列插入数据只需在SQL中增加<code>ALIGNED</code>关键词，其他类似。</p><p>示例代码如下：</p><div class="language-sql line-numbers-mode" data-highlighter="shiki" data-ext="sql" style="background-color:#282c34;color:#abb2bf;"><pre class="shiki one-dark-pro vp-code"><code class="language-sql"><span class="line"><span style="color:#ABB2BF;">IoTDB </span><span style="color:#56B6C2;">></span><span style="color:#C678DD;"> create</span><span style="color:#ABB2BF;"> aligned timeseries </span><span style="color:#D19A66;">root</span><span style="color:#ABB2BF;">.</span><span style="color:#D19A66;">sg1</span><span style="color:#ABB2BF;">.d1(s1 INT32, s2 DOUBLE)</span></span> |
| <span class="line"><span style="color:#ABB2BF;">IoTDB </span><span style="color:#56B6C2;">></span><span style="color:#C678DD;"> insert into</span><span style="color:#D19A66;"> root</span><span style="color:#ABB2BF;">.</span><span style="color:#D19A66;">sg1</span><span style="color:#ABB2BF;">.d1(</span><span style="color:#C678DD;">time</span><span style="color:#ABB2BF;">, s1, s2) aligned </span><span style="color:#C678DD;">values</span><span style="color:#ABB2BF;">(</span><span style="color:#D19A66;">1</span><span style="color:#ABB2BF;">, </span><span style="color:#D19A66;">1</span><span style="color:#ABB2BF;">, </span><span style="color:#D19A66;">1</span><span style="color:#ABB2BF;">)</span></span> |
| <span class="line"><span style="color:#ABB2BF;">IoTDB </span><span style="color:#56B6C2;">></span><span style="color:#C678DD;"> insert into</span><span style="color:#D19A66;"> root</span><span style="color:#ABB2BF;">.</span><span style="color:#D19A66;">sg1</span><span style="color:#ABB2BF;">.d1(</span><span style="color:#C678DD;">time</span><span style="color:#ABB2BF;">, s1, s2) aligned </span><span style="color:#C678DD;">values</span><span style="color:#ABB2BF;">(</span><span style="color:#D19A66;">2</span><span style="color:#ABB2BF;">, </span><span style="color:#D19A66;">2</span><span style="color:#ABB2BF;">, </span><span style="color:#D19A66;">2</span><span style="color:#ABB2BF;">), (</span><span style="color:#D19A66;">3</span><span style="color:#ABB2BF;">, </span><span style="color:#D19A66;">3</span><span style="color:#ABB2BF;">, </span><span style="color:#D19A66;">3</span><span style="color:#ABB2BF;">)</span></span> |
| <span class="line"><span style="color:#ABB2BF;">IoTDB </span><span style="color:#56B6C2;">></span><span style="color:#C678DD;"> select</span><span style="color:#ABB2BF;"> * </span><span style="color:#C678DD;">from</span><span style="color:#D19A66;"> root</span><span style="color:#ABB2BF;">.</span><span style="color:#D19A66;">sg1</span><span style="color:#ABB2BF;">.d1</span></span></code></pre><div class="line-numbers" aria-hidden="true" style="counter-reset:line-number 0;"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><p>结果如图所示。由查询结果可以看出，数据的插入操作正确执行。</p><div class="language- line-numbers-mode" data-highlighter="shiki" data-ext="" style="background-color:#282c34;color:#abb2bf;"><pre class="shiki one-dark-pro vp-code"><code class="language-"><span class="line"><span>+-----------------------------+--------------+--------------+</span></span> |
| <span class="line"><span>| Time|root.sg1.d1.s1|root.sg1.d1.s2|</span></span> |
| <span class="line"><span>+-----------------------------+--------------+--------------+</span></span> |
| <span class="line"><span>|1970-01-01T08:00:00.001+08:00| 1| 1.0|</span></span> |
| <span class="line"><span>|1970-01-01T08:00:00.002+08:00| 2| 2.0|</span></span> |
| <span class="line"><span>|1970-01-01T08:00:00.003+08:00| 3| 3.0|</span></span> |
| <span class="line"><span>+-----------------------------+--------------+--------------+</span></span> |
| <span class="line"><span>Total line number = 3</span></span> |
| <span class="line"><span>It costs 0.004s</span></span></code></pre><div class="line-numbers" aria-hidden="true" style="counter-reset:line-number 0;"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><h2 id="原生接口写入" tabindex="-1"><a class="header-anchor" href="#原生接口写入"><span>原生接口写入</span></a></h2><p>原生接口 （Session） 是目前IoTDB使用最广泛的系列接口，包含多种写入接口，适配不同的数据采集场景，性能高效且支持多语言。</p><h3 id="多语言接口写入" tabindex="-1"><a class="header-anchor" href="#多语言接口写入"><span>多语言接口写入</span></a></h3><ul><li><h3 id="java" tabindex="-1"><a class="header-anchor" href="#java"><span>Java</span></a></h3><p>使用Java接口写入之前，你需要先建立连接，参考 <a class="route-link" href="/zh/UserGuide/dev-1.3/API/Programming-Java-Native-API.html">Java原生接口</a>。<br> 之后通过 <a class="route-link" href="/zh/UserGuide/dev-1.3/API/Programming-Java-Native-API.html#%E6%95%B0%E6%8D%AE%E5%86%99%E5%85%A5"> JAVA 数据操作接口（DML）</a>写入。</p></li><li><h3 id="python" tabindex="-1"><a class="header-anchor" href="#python"><span>Python</span></a></h3><p>参考 <a class="route-link" href="/zh/UserGuide/dev-1.3/API/Programming-Python-Native-API.html#%E6%95%B0%E6%8D%AE%E5%86%99%E5%85%A5"> Python 数据操作接口（DML）</a></p></li><li><h3 id="c" tabindex="-1"><a class="header-anchor" href="#c"><span>C++</span></a></h3><p>参考 <a class="route-link" href="/zh/UserGuide/dev-1.3/API/Programming-Cpp-Native-API.html"> C++ 数据操作接口（DML）</a></p></li><li><h3 id="go" tabindex="-1"><a class="header-anchor" href="#go"><span>Go</span></a></h3><p>参考 <a class="route-link" href="/zh/UserGuide/dev-1.3/API/Programming-Go-Native-API.html">Go 原生接口</a></p></li></ul><h2 id="rest-api写入" tabindex="-1"><a class="header-anchor" href="#rest-api写入"><span>REST API写入</span></a></h2><p>参考 <a class="route-link" href="/zh/UserGuide/dev-1.3/API/RestServiceV1.html#inserttablet">insertTablet (v1)</a> or <a class="route-link" href="/zh/UserGuide/dev-1.3/API/RestServiceV2.html#inserttablet">insertTablet (v2)</a></p><p>示例如下：</p><div class="language-json line-numbers-mode" data-highlighter="shiki" data-ext="json" style="background-color:#282c34;color:#abb2bf;"><pre class="shiki one-dark-pro vp-code"><code class="language-json"><span class="line"><span style="color:#ABB2BF;">{</span></span> |
| <span class="line"><span style="color:#E06C75;"> "timestamps"</span><span style="color:#ABB2BF;">: [</span></span> |
| <span class="line"><span style="color:#D19A66;"> 1</span><span style="color:#ABB2BF;">,</span></span> |
| <span class="line"><span style="color:#D19A66;"> 2</span><span style="color:#ABB2BF;">,</span></span> |
| <span class="line"><span style="color:#D19A66;"> 3</span></span> |
| <span class="line"><span style="color:#ABB2BF;"> ],</span></span> |
| <span class="line"><span style="color:#E06C75;"> "measurements"</span><span style="color:#ABB2BF;">: [</span></span> |
| <span class="line"><span style="color:#98C379;"> "temperature"</span><span style="color:#ABB2BF;">,</span></span> |
| <span class="line"><span style="color:#98C379;"> "status"</span></span> |
| <span class="line"><span style="color:#ABB2BF;"> ],</span></span> |
| <span class="line"><span style="color:#E06C75;"> "data_types"</span><span style="color:#ABB2BF;">: [</span></span> |
| <span class="line"><span style="color:#98C379;"> "FLOAT"</span><span style="color:#ABB2BF;">,</span></span> |
| <span class="line"><span style="color:#98C379;"> "BOOLEAN"</span></span> |
| <span class="line"><span style="color:#ABB2BF;"> ],</span></span> |
| <span class="line"><span style="color:#E06C75;"> "values"</span><span style="color:#ABB2BF;">: [</span></span> |
| <span class="line"><span style="color:#ABB2BF;"> [</span></span> |
| <span class="line"><span style="color:#D19A66;"> 1.1</span><span style="color:#ABB2BF;">,</span></span> |
| <span class="line"><span style="color:#D19A66;"> 2.2</span><span style="color:#ABB2BF;">,</span></span> |
| <span class="line"><span style="color:#D19A66;"> 3.3</span></span> |
| <span class="line"><span style="color:#ABB2BF;"> ],</span></span> |
| <span class="line"><span style="color:#ABB2BF;"> [</span></span> |
| <span class="line"><span style="color:#56B6C2;"> false</span><span style="color:#ABB2BF;">,</span></span> |
| <span class="line"><span style="color:#56B6C2;"> true</span><span style="color:#ABB2BF;">,</span></span> |
| <span class="line"><span style="color:#56B6C2;"> true</span></span> |
| <span class="line"><span style="color:#ABB2BF;"> ]</span></span> |
| <span class="line"><span style="color:#ABB2BF;"> ],</span></span> |
| <span class="line"><span style="color:#E06C75;"> "is_aligned"</span><span style="color:#ABB2BF;">: </span><span style="color:#D19A66;">false</span><span style="color:#ABB2BF;">,</span></span> |
| <span class="line"><span style="color:#E06C75;"> "device"</span><span style="color:#ABB2BF;">: </span><span style="color:#98C379;">"root.ln.wf01.wt01"</span></span> |
| <span class="line"><span style="color:#ABB2BF;">}</span></span></code></pre><div class="line-numbers" aria-hidden="true" style="counter-reset:line-number 0;"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><h2 id="mqtt写入" tabindex="-1"><a class="header-anchor" href="#mqtt写入"><span>MQTT写入</span></a></h2><p>参考 <a class="route-link" href="/zh/UserGuide/dev-1.3/API/Programming-MQTT.html#%E5%86%85%E7%BD%AE-mqtt-%E6%9C%8D%E5%8A%A1">内置 MQTT 服务</a></p><h2 id="批量数据导入" tabindex="-1"><a class="header-anchor" href="#批量数据导入"><span>批量数据导入</span></a></h2><p>针对于不同场景，IoTDB 为用户提供多种批量导入数据的操作方式，本章节向大家介绍最为常用的两种方式为 CSV文本形式的导入 和 TsFile文件形式的导入。</p><h3 id="tsfile批量导入" tabindex="-1"><a class="header-anchor" href="#tsfile批量导入"><span>TsFile批量导入</span></a></h3><p>TsFile 是在 IoTDB 中使用的时间序列的文件格式，您可以通过CLI等工具直接将存有时间序列的一个或多个 TsFile 文件导入到另外一个正在运行的IoTDB实例中。具体操作方式请参考<a class="route-link" href="/zh/UserGuide/dev-1.3/Tools-System/Data-Import-Tool.html">数据导入</a>。</p><h3 id="csv批量导入" tabindex="-1"><a class="header-anchor" href="#csv批量导入"><span>CSV批量导入</span></a></h3><p>CSV 是以纯文本形式存储表格数据，您可以在CSV文件中写入多条格式化的数据，并批量的将这些数据导入到 IoTDB 中，在导入数据之前，建议在IoTDB中创建好对应的元数据信息。如果忘记创建元数据也不要担心，IoTDB 可以自动将CSV中数据推断为其对应的数据类型，前提是你每一列的数据类型必须唯一。除单个文件外，此工具还支持以文件夹的形式导入多个 CSV 文件，并且支持设置如时间精度等优化参数。具体操作方式请参考<a class="route-link" href="/zh/UserGuide/dev-1.3/Tools-System/Data-Import-Tool.html">数据导入</a>。</p><h2 id="无模式写入" tabindex="-1"><a class="header-anchor" href="#无模式写入"><span>无模式写入</span></a></h2><p>在物联网场景中，由于设备的类型、数量可能随时间动态增减，不同设备可能产生不同字段的数据（如温度、湿度、状态码等），业务上又往往需要快速部署，需要灵活接入新设备且无需繁琐的预定义流程。因此，不同于传统时序数据库通常需要预先定义数据模型，IoTDB支持不提前创建元数据，在写入数据时，数据库中将自动识别并注册所需的元数据，实现自动建模。</p><p>用户既可以通过CLI使用insert语句或者原生接口的方式，批量或者单行实时写入一个设备或者多个设备的测点数据，也可以通过导入工具导入csv，TsFile等格式的历史数据，在导入过程中会自动创建序列，数据类型，压缩编码方式等元数据。</p></div><!----><!----><!----></div><footer class="vp-page-meta"><div class="vp-meta-item edit-link"><a class="auto-link external-link vp-meta-label" href="https://github.com/apache/iotdb-docs/edit/main/src/zh/UserGuide/dev-1.3/Basic-Concept/Write-Data.md" aria-label="发现错误？在 GitHub 上编辑此页" rel="noopener noreferrer" target="_blank"><!--[--><svg xmlns="http://www.w3.org/2000/svg" class="icon edit-icon" viewBox="0 0 1024 1024" fill="currentColor" aria-label="edit icon" name="edit"><path d="M430.818 653.65a60.46 60.46 0 0 1-50.96-93.281l71.69-114.012 7.773-10.365L816.038 80.138A60.46 60.46 0 0 1 859.225 62a60.46 60.46 0 0 1 43.186 18.138l43.186 43.186a60.46 60.46 0 0 1 0 86.373L588.879 565.55l-8.637 8.637-117.466 68.234a60.46 60.46 0 0 1-31.958 11.229z"></path><path d="M728.802 962H252.891A190.883 190.883 0 0 1 62.008 771.98V296.934a190.883 190.883 0 0 1 190.883-192.61h267.754a60.46 60.46 0 0 1 0 120.92H252.891a69.962 69.962 0 0 0-69.098 69.099V771.98a69.962 69.962 0 0 0 69.098 69.098h475.911A69.962 69.962 0 0 0 797.9 771.98V503.363a60.46 60.46 0 1 1 120.922 0V771.98A190.883 190.883 0 0 1 728.802 962z"></path></svg><!--]-->发现错误？在 GitHub 上编辑此页<!----></a></div><div class="vp-meta-item git-info"><div class="update-time"><span class="vp-meta-label">最近更新: </span><time class="vp-meta-info" datetime="2025-05-16T06:53:50.000Z" data-allow-mismatch>2025/5/16 06:53</time></div><!----></div></footer><!----><!----><!----><!--]--></main><!--]--><footer class="site-footer"><span id="doc-version" style="display:none;">dev-1.3</span><p class="copyright-text">版权所有 © 2026 Apache软件基金会。 |
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