未验证 提交 f9cc4539 编写于 作者: J Jeff Tao 提交者: GitHub

Merge pull request #889 from wangganggithub/patch-1

fix 'cdata' to 'speed' in create table sql
......@@ -28,7 +28,7 @@
<p>在TDengine终端中,用户可以通过SQL命令来创建/删除数据库、表等,并进行插入查询操作。在终端中运行的SQL语句需要以分号结束来运行。示例:</p>
<pre><code class="mysql language-mysql">create database db;
use db;
create table t (ts timestamp, cdata int);
create table t (ts timestamp, speed int);
insert into t values ('2019-07-15 00:00:00', 10);
insert into t values ('2019-07-15 01:00:00', 20);
select * from t;
......@@ -85,4 +85,4 @@ Query OK, 2 row(s) in set (0.001700s)</code></pre>
</ul>
<p>TDengine是专为物联网、车联网、工业互联网、运维监测等场景优化设计的时序数据处理引擎。与其他方案相比,它的插入查询速度都快10倍以上。单核一秒钟就能插入100万数据点,读出1000万数据点。由于采用列式存储和优化的压缩算法,存储空间不及普通数据库的1/10.</p>
<a class='anchor' id='深入了解TDengine'></a><h2>深入了解TDengine</h2>
<p>请继续阅读<a href="../documentation">文档</a>来深入了解TDengine。</p><a href='../index.html'>回去</a></section></main></div><?php include($s.'/footer.php'); ?><script>$('pre').addClass('prettyprint linenums');PR.prettyPrint()</script><script src='lib/docs/liner.js'></script></body></html>
\ No newline at end of file
<p>请继续阅读<a href="../documentation">文档</a>来深入了解TDengine。</p><a href='../index.html'>回去</a></section></main></div><?php include($s.'/footer.php'); ?><script>$('pre').addClass('prettyprint linenums');PR.prettyPrint()</script><script src='lib/docs/liner.js'></script></body></html>
......@@ -28,7 +28,7 @@
<p>In the TDengine shell, you can create databases, create tables and insert/query data with SQL. Each query command ends with a semicolon. It works like MySQL, for example:</p>
<pre><code class="mysql language-mysql">create database db;
use db;
create table t (ts timestamp, cdata int);
create table t (ts timestamp, speed int);
insert into t values ('2019-07-15 10:00:00', 10);
insert into t values ('2019-07-15 10:01:05', 20);
select * from t;
......@@ -85,4 +85,4 @@ Query OK, 2 row(s) in set (0.001700s)</code></pre>
</ul>
<p>TDengine is specially designed and optimized for time-series data processing in IoT, connected cars, Industrial IoT, IT infrastructure and application monitoring, and other scenarios. Compared with other solutions, it is 10x faster on insert/query speed. With a single-core machine, over 20K requestes can be processed, millions data points can be ingested, and over 10 million data points can be retrieved in a second. Via column-based storage and tuned compression algorithm for different data types, less than 1/10 storage space is required. </p>
<a class='anchor' id='Explore-More-on-TDengine'></a><h2>Explore More on TDengine</h2>
<p>Please read through the whole <a href='../documentation'>documentation</a> to learn more about TDengine.</p><a href='../index.html'>Back</a></section></main></div><?php include($s.'/footer.php'); ?><script>$('pre').addClass('prettyprint linenums');PR.prettyPrint()</script><script src='lib/docs/liner.js'></script></body></html>
\ No newline at end of file
<p>Please read through the whole <a href='../documentation'>documentation</a> to learn more about TDengine.</p><a href='../index.html'>Back</a></section></main></div><?php include($s.'/footer.php'); ?><script>$('pre').addClass('prettyprint linenums');PR.prettyPrint()</script><script src='lib/docs/liner.js'></script></body></html>
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