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<?xml version="1.0" encoding="utf-8" standalone="yes"?><rss version="2.0" xmlns:atom="http://www.w3.org/2005/Atom"><channel><title>数据操作 on Apache HoraeDB</title><link>https://horaedb.apache.org/cn/docs/user-guide/sql/dml/</link><description>Recent content in 数据操作 on Apache HoraeDB</description><generator>Hugo</generator><language>cn</language><atom:link href="https://horaedb.apache.org/cn/docs/user-guide/sql/dml/index.xml" rel="self" type="application/rss+xml"/><item><title>INSERT</title><link>https://horaedb.apache.org/cn/docs/user-guide/sql/dml/insert/</link><pubDate>Mon, 01 Jan 0001 00:00:00 +0000</pubDate><guid>https://horaedb.apache.org/cn/docs/user-guide/sql/dml/insert/</guid><description>&lt;h2 id="基础语法">基础语法&lt;/h2>
&lt;p>写入数据的基础语法如下：&lt;/p>
&lt;div class="highlight">&lt;div style=";-moz-tab-size:4;-o-tab-size:4;tab-size:4;">
&lt;table style="border-spacing:0;padding:0;margin:0;border:0;">&lt;tr>&lt;td style="vertical-align:top;padding:0;margin:0;border:0;">
&lt;pre tabindex="0" style=";-moz-tab-size:4;-o-tab-size:4;tab-size:4;">&lt;code>&lt;span style="white-space:pre;-webkit-user-select:none;user-select:none;margin-right:0.4em;padding:0 0.4em 0 0.4em;color:#7f7f7f">1
&lt;/span>&lt;span style="white-space:pre;-webkit-user-select:none;user-select:none;margin-right:0.4em;padding:0 0.4em 0 0.4em;color:#7f7f7f">2
&lt;/span>&lt;span style="white-space:pre;-webkit-user-select:none;user-select:none;margin-right:0.4em;padding:0 0.4em 0 0.4em;color:#7f7f7f">3
&lt;/span>&lt;/code>&lt;/pre>&lt;/td>
&lt;td style="vertical-align:top;padding:0;margin:0;border:0;;width:100%">
&lt;pre tabindex="0" style=";-moz-tab-size:4;-o-tab-size:4;tab-size:4;">&lt;code class="language-sql" data-lang="sql">&lt;span style="display:flex;">&lt;span>&lt;span style="color:#008000;font-weight:bold">INSERT&lt;/span>&lt;span style="color:#bbb"> &lt;/span>[&lt;span style="color:#008000;font-weight:bold">INTO&lt;/span>]&lt;span style="color:#bbb"> &lt;/span>tbl_name&lt;span style="color:#bbb">
&lt;/span>&lt;/span>&lt;/span>&lt;span style="display:flex;">&lt;span>&lt;span style="color:#bbb"> &lt;/span>[(col_name&lt;span style="color:#bbb"> &lt;/span>[,&lt;span style="color:#bbb"> &lt;/span>col_name]&lt;span style="color:#bbb"> &lt;/span>...)]&lt;span style="color:#bbb">
&lt;/span>&lt;/span>&lt;/span>&lt;span style="display:flex;">&lt;span>&lt;span style="color:#bbb"> &lt;/span>&lt;span style="">{&lt;/span>&lt;span style="color:#bbb"> &lt;/span>&lt;span style="">{&lt;/span>&lt;span style="color:#008000;font-weight:bold">VALUES&lt;/span>&lt;span style="color:#bbb"> &lt;/span>&lt;span style="color:#666">|&lt;/span>&lt;span style="color:#bbb"> &lt;/span>VALUE&lt;span style="">}&lt;/span>&lt;span style="color:#bbb"> &lt;/span>(value_list)&lt;span style="color:#bbb"> &lt;/span>[,&lt;span style="color:#bbb"> &lt;/span>(value_list)]&lt;span style="color:#bbb"> &lt;/span>...&lt;span style="color:#bbb"> &lt;/span>&lt;span style="">}&lt;/span>&lt;span style="color:#bbb">
&lt;/span>&lt;/span>&lt;/span>&lt;/code>&lt;/pre>&lt;/td>&lt;/tr>&lt;/table>
&lt;/div>
&lt;/div>&lt;p>写入一行数据的示例如下：&lt;/p>
&lt;div class="highlight">&lt;div style=";-moz-tab-size:4;-o-tab-size:4;tab-size:4;">
&lt;table style="border-spacing:0;padding:0;margin:0;border:0;">&lt;tr>&lt;td style="vertical-align:top;padding:0;margin:0;border:0;">
&lt;pre tabindex="0" style=";-moz-tab-size:4;-o-tab-size:4;tab-size:4;">&lt;code>&lt;span style="white-space:pre;-webkit-user-select:none;user-select:none;margin-right:0.4em;padding:0 0.4em 0 0.4em;color:#7f7f7f">1
&lt;/span>&lt;/code>&lt;/pre>&lt;/td>
&lt;td style="vertical-align:top;padding:0;margin:0;border:0;;width:100%">
&lt;pre tabindex="0" style=";-moz-tab-size:4;-o-tab-size:4;tab-size:4;">&lt;code class="language-sql" data-lang="sql">&lt;span style="display:flex;">&lt;span>&lt;span style="color:#008000;font-weight:bold">INSERT&lt;/span>&lt;span style="color:#bbb"> &lt;/span>&lt;span style="color:#008000;font-weight:bold">INTO&lt;/span>&lt;span style="color:#bbb"> &lt;/span>demo(&lt;span style="color:#666">`&lt;/span>&lt;span style="color:#008000;font-weight:bold">timestamp&lt;/span>&lt;span style="color:#666">`&lt;/span>,&lt;span style="color:#bbb"> &lt;/span>tag1)&lt;span style="color:#bbb"> &lt;/span>&lt;span style="color:#008000;font-weight:bold">VALUES&lt;/span>(&lt;span style="color:#666">1667374200022&lt;/span>,&lt;span style="color:#bbb"> &lt;/span>&lt;span style="color:#ba2121">&amp;#39;horaedb&amp;#39;&lt;/span>)&lt;span style="color:#bbb">
&lt;/span>&lt;/span>&lt;/span>&lt;/code>&lt;/pre>&lt;/td>&lt;/tr>&lt;/table>
&lt;/div>
&lt;/div></description></item><item><title>SELECT</title><link>https://horaedb.apache.org/cn/docs/user-guide/sql/dml/select/</link><pubDate>Mon, 01 Jan 0001 00:00:00 +0000</pubDate><guid>https://horaedb.apache.org/cn/docs/user-guide/sql/dml/select/</guid><description>&lt;h2 id="基础语法">基础语法&lt;/h2>
&lt;p>数据查询的基础语法如下：&lt;/p>
&lt;div class="highlight">&lt;div style=";-moz-tab-size:4;-o-tab-size:4;tab-size:4;">
&lt;table style="border-spacing:0;padding:0;margin:0;border:0;">&lt;tr>&lt;td style="vertical-align:top;padding:0;margin:0;border:0;">
&lt;pre tabindex="0" style=";-moz-tab-size:4;-o-tab-size:4;tab-size:4;">&lt;code>&lt;span style="white-space:pre;-webkit-user-select:none;user-select:none;margin-right:0.4em;padding:0 0.4em 0 0.4em;color:#7f7f7f">1
&lt;/span>&lt;span style="white-space:pre;-webkit-user-select:none;user-select:none;margin-right:0.4em;padding:0 0.4em 0 0.4em;color:#7f7f7f">2
&lt;/span>&lt;span style="white-space:pre;-webkit-user-select:none;user-select:none;margin-right:0.4em;padding:0 0.4em 0 0.4em;color:#7f7f7f">3
&lt;/span>&lt;span style="white-space:pre;-webkit-user-select:none;user-select:none;margin-right:0.4em;padding:0 0.4em 0 0.4em;color:#7f7f7f">4
&lt;/span>&lt;span style="white-space:pre;-webkit-user-select:none;user-select:none;margin-right:0.4em;padding:0 0.4em 0 0.4em;color:#7f7f7f">5
&lt;/span>&lt;span style="white-space:pre;-webkit-user-select:none;user-select:none;margin-right:0.4em;padding:0 0.4em 0 0.4em;color:#7f7f7f">6
&lt;/span>&lt;span style="white-space:pre;-webkit-user-select:none;user-select:none;margin-right:0.4em;padding:0 0.4em 0 0.4em;color:#7f7f7f">7
&lt;/span>&lt;/code>&lt;/pre>&lt;/td>
&lt;td style="vertical-align:top;padding:0;margin:0;border:0;;width:100%">
&lt;pre tabindex="0" style=";-moz-tab-size:4;-o-tab-size:4;tab-size:4;">&lt;code class="language-sql" data-lang="sql">&lt;span style="display:flex;">&lt;span>&lt;span style="color:#008000;font-weight:bold">SELECT&lt;/span>&lt;span style="color:#bbb"> &lt;/span>select_expr&lt;span style="color:#bbb"> &lt;/span>[,&lt;span style="color:#bbb"> &lt;/span>select_expr]&lt;span style="color:#bbb"> &lt;/span>...&lt;span style="color:#bbb">
&lt;/span>&lt;/span>&lt;/span>&lt;span style="display:flex;">&lt;span>&lt;span style="color:#bbb"> &lt;/span>&lt;span style="color:#008000;font-weight:bold">FROM&lt;/span>&lt;span style="color:#bbb"> &lt;/span>&lt;span style="color:#008000;font-weight:bold">table_name&lt;/span>&lt;span style="color:#bbb">
&lt;/span>&lt;/span>&lt;/span>&lt;span style="display:flex;">&lt;span>&lt;span style="color:#bbb"> &lt;/span>[&lt;span style="color:#008000;font-weight:bold">WHERE&lt;/span>&lt;span style="color:#bbb"> &lt;/span>where_condition]&lt;span style="color:#bbb">
&lt;/span>&lt;/span>&lt;/span>&lt;span style="display:flex;">&lt;span>&lt;span style="color:#bbb"> &lt;/span>[&lt;span style="color:#008000;font-weight:bold">GROUP&lt;/span>&lt;span style="color:#bbb"> &lt;/span>&lt;span style="color:#008000;font-weight:bold">BY&lt;/span>&lt;span style="color:#bbb"> &lt;/span>&lt;span style="">{&lt;/span>col_name&lt;span style="color:#bbb"> &lt;/span>&lt;span style="color:#666">|&lt;/span>&lt;span style="color:#bbb"> &lt;/span>expr&lt;span style="">}&lt;/span>&lt;span style="color:#bbb"> &lt;/span>...&lt;span style="color:#bbb"> &lt;/span>]&lt;span style="color:#bbb">
&lt;/span>&lt;/span>&lt;/span>&lt;span style="display:flex;">&lt;span>&lt;span style="color:#bbb"> &lt;/span>[&lt;span style="color:#008000;font-weight:bold">ORDER&lt;/span>&lt;span style="color:#bbb"> &lt;/span>&lt;span style="color:#008000;font-weight:bold">BY&lt;/span>&lt;span style="color:#bbb"> &lt;/span>&lt;span style="">{&lt;/span>col_name&lt;span style="color:#bbb"> &lt;/span>&lt;span style="color:#666">|&lt;/span>&lt;span style="color:#bbb"> &lt;/span>expr&lt;span style="">}&lt;/span>&lt;span style="color:#bbb">
&lt;/span>&lt;/span>&lt;/span>&lt;span style="display:flex;">&lt;span>&lt;span style="color:#bbb"> &lt;/span>[&lt;span style="color:#008000;font-weight:bold">ASC&lt;/span>&lt;span style="color:#bbb"> &lt;/span>&lt;span style="color:#666">|&lt;/span>&lt;span style="color:#bbb"> &lt;/span>&lt;span style="color:#008000;font-weight:bold">DESC&lt;/span>]&lt;span style="color:#bbb">
&lt;/span>&lt;/span>&lt;/span>&lt;span style="display:flex;">&lt;span>&lt;span style="color:#bbb"> &lt;/span>[&lt;span style="color:#008000;font-weight:bold">LIMIT&lt;/span>&lt;span style="color:#bbb"> &lt;/span>[&lt;span style="color:#008000;font-weight:bold">offset&lt;/span>,]&lt;span style="color:#bbb"> &lt;/span>&lt;span style="color:#008000;font-weight:bold">row_count&lt;/span>&lt;span style="color:#bbb"> &lt;/span>]&lt;span style="color:#bbb">
&lt;/span>&lt;/span>&lt;/span>&lt;/code>&lt;/pre>&lt;/td>&lt;/tr>&lt;/table>
&lt;/div>
&lt;/div>&lt;p>数据查询的语法和 mysql 类似，示例如下：&lt;/p>
&lt;div class="highlight">&lt;div style=";-moz-tab-size:4;-o-tab-size:4;tab-size:4;">
&lt;table style="border-spacing:0;padding:0;margin:0;border:0;">&lt;tr>&lt;td style="vertical-align:top;padding:0;margin:0;border:0;">
&lt;pre tabindex="0" style=";-moz-tab-size:4;-o-tab-size:4;tab-size:4;">&lt;code>&lt;span style="white-space:pre;-webkit-user-select:none;user-select:none;margin-right:0.4em;padding:0 0.4em 0 0.4em;color:#7f7f7f">1
&lt;/span>&lt;/code>&lt;/pre>&lt;/td>
&lt;td style="vertical-align:top;padding:0;margin:0;border:0;;width:100%">
&lt;pre tabindex="0" style=";-moz-tab-size:4;-o-tab-size:4;tab-size:4;">&lt;code class="language-sql" data-lang="sql">&lt;span style="display:flex;">&lt;span>&lt;span style="color:#008000;font-weight:bold">SELECT&lt;/span>&lt;span style="color:#bbb"> &lt;/span>&lt;span style="color:#666">*&lt;/span>&lt;span style="color:#bbb"> &lt;/span>&lt;span style="color:#008000;font-weight:bold">FROM&lt;/span>&lt;span style="color:#bbb"> &lt;/span>&lt;span style="color:#666">`&lt;/span>demo&lt;span style="color:#666">`&lt;/span>&lt;span style="color:#bbb"> &lt;/span>&lt;span style="color:#008000;font-weight:bold">WHERE&lt;/span>&lt;span style="color:#bbb"> &lt;/span>time_stamp&lt;span style="color:#bbb"> &lt;/span>&lt;span style="color:#666">&amp;gt;&lt;/span>&lt;span style="color:#bbb"> &lt;/span>&lt;span style="color:#ba2121">&amp;#39;2022-10-11 00:00:00&amp;#39;&lt;/span>&lt;span style="color:#bbb"> &lt;/span>&lt;span style="color:#008000;font-weight:bold">AND&lt;/span>&lt;span style="color:#bbb"> &lt;/span>time_stamp&lt;span style="color:#bbb"> &lt;/span>&lt;span style="color:#666">&amp;lt;&lt;/span>&lt;span style="color:#bbb"> &lt;/span>&lt;span style="color:#ba2121">&amp;#39;2022-10-12 00:00:00&amp;#39;&lt;/span>&lt;span style="color:#bbb"> &lt;/span>&lt;span style="color:#008000;font-weight:bold">LIMIT&lt;/span>&lt;span style="color:#bbb"> &lt;/span>&lt;span style="color:#666">10&lt;/span>&lt;span style="color:#bbb">
&lt;/span>&lt;/span>&lt;/span>&lt;/code>&lt;/pre>&lt;/td>&lt;/tr>&lt;/table>
&lt;/div>
&lt;/div></description></item></channel></rss>