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class="com-tab-hd large"><ul class="com-tab-ctrl"><li class="com-tab-item actived"><a href="javascript:;">专栏文章<span class="num">(4.9K)</span></a></li><li class="com-tab-item"><a href="/developer/tag/14827?entry=video">技术视频<span class="num">(119)</span></a></li><li class="com-tab-item"><a href="/developer/tag/14827?entry=ask">互动问答<span class="num">(2.8K)</span></a></li></ul></div><div class="com-tab-bd"><com class="com-tab-panel"><div class="com-article-panel-v2-list"><section class="com-article-panel-v2 higher"><a href="/developer/article/2472749" track-click="{&quot;areaId&quot;:113001,&quot;objectType&quot;:&quot;article&quot;,&quot;objectId&quot;:2472749}" track-exposure="{&quot;areaId&quot;:113001,&quot;objectType&quot;:&quot;article&quot;,&quot;objectId&quot;:2472749}" target="_blank" class="com-article-panel-v2-link"></a><div class="com-article-panel-v2-hd"><h3 class="com-article-panel-v2-title">mysql分页读取数据重复问题</h3><nav class="com-tag-v2-list com-article-panel-v2-tags"><a href="/developer/tag/10244?entry=article" track-click="{&quot;areaId&quot;:113001,&quot;objectType&quot;:&quot;tag&quot;,&quot;objectId&quot;:10244}" class="com-tag-v2">数据库</a><a href="/developer/tag/14827?entry=article" track-click="{&quot;areaId&quot;:113001,&quot;objectType&quot;:&quot;tag&quot;,&quot;objectId&quot;:14827}" class="com-tag-v2">mysql</a></nav></div><div class="com-article-panel-v2-bd"><div class="com-article-panel-v2-object"><span class="com-article-panel-v2-img" style="background-image:url(https://developer.qcloudimg.com/http-save/yehe-9378957/8ed2887e9c4a116fb1be28d5f5820b35.jpg?imageView2/2/w/400/h/7000)"></span></div><div class="com-article-panel-v2-cnt"><div class="com-article-panel-v2-user-wrap"><div class="com-media com-user-infos"><a href="/developer/user/9378957" track-click="{&quot;objectType&quot;:&quot;user&quot;,&quot;objectId&quot;:9378957}" target="_blank" class="com-media-object"><span class="com-media-img" style="background-image:url(https://ask.qcloudimg.com/http-save/yehe-9378957/293df4f7dc56fc112bec188b3dad20a9.jpeg?imageView2/2/w/48/h/7000)"></span></a><div class="com-media-body"><a href="/developer/user/9378957" track-click="{&quot;objectType&quot;:&quot;user&quot;,&quot;objectId&quot;:9378957}" target="_blank" class="author-info name">闻说社</a><span class="author-info time"><time dateTime="2024-12-02 16:21:12" title="2024-12-02 16:21:12"> <span>13</span>小时前<span class="com-v-box">2024-12-02 16:21:12</span></time></span></div></div></div><p class="com-article-panel-v2-des">服务端开发过程中,我们通常需要与mysql数据库进行数据交互。在大多数情况下,由于数据量过大、网络时延、mysql参数配置限制,以及业务逻辑的限制等,需要我们对...</p><div class="com-operations com-article-panel-v2-opt"><span class="com-opt-link link-view"><i class="com-i-view"></i>11</span><span class="com-opt-link link-like"><i class="com-i-like"></i>0</span><span class="com-opt-link link-comment"><i class="com-i-dialog"></i>0</span><span><a href="javascript:;" class="com-opt-link link-share" hotrep="community.tag.tag_detail.activities.article.2472749.sharing"><i class="com-i-share"></i></a><ul class="com-share-options"></ul></span></div></div></div></section><section class="com-article-panel-v2 higher"><a href="/developer/article/2472746" track-click="{&quot;areaId&quot;:113001,&quot;objectType&quot;:&quot;article&quot;,&quot;objectId&quot;:2472746}" track-exposure="{&quot;areaId&quot;:113001,&quot;objectType&quot;:&quot;article&quot;,&quot;objectId&quot;:2472746}" target="_blank" class="com-article-panel-v2-link"></a><div class="com-article-panel-v2-hd"><h3 class="com-article-panel-v2-title">mysql分页读取数据重复问题</h3><nav class="com-tag-v2-list com-article-panel-v2-tags"><a href="/developer/tag/10244?entry=article" track-click="{&quot;areaId&quot;:113001,&quot;objectType&quot;:&quot;tag&quot;,&quot;objectId&quot;:10244}" class="com-tag-v2">数据库</a><a href="/developer/tag/14827?entry=article" track-click="{&quot;areaId&quot;:113001,&quot;objectType&quot;:&quot;tag&quot;,&quot;objectId&quot;:14827}" class="com-tag-v2">mysql</a></nav></div><div class="com-article-panel-v2-bd"><div class="com-article-panel-v2-object"><span class="com-article-panel-v2-img" style="background-image:url(https://developer.qcloudimg.com/http-save/yehe-9379088/a930a788bc60f94377e877dffb9a129d.jpg?imageView2/2/w/400/h/7000)"></span></div><div class="com-article-panel-v2-cnt"><div class="com-article-panel-v2-user-wrap"><div class="com-media com-user-infos"><a href="/developer/user/9379088" track-click="{&quot;objectType&quot;:&quot;user&quot;,&quot;objectId&quot;:9379088}" target="_blank" class="com-media-object"><span class="com-media-img" style="background-image:url(https://ask.qcloudimg.com/http-save/yehe-9379088/dbccf09b08d375f952c731c8df421748.jpeg?imageView2/2/w/48/h/7000)"></span></a><div class="com-media-body"><a href="/developer/user/9379088" track-click="{&quot;objectType&quot;:&quot;user&quot;,&quot;objectId&quot;:9379088}" target="_blank" class="author-info name">阿珍</a><span class="author-info time"><time dateTime="2024-12-02 16:14:34" title="2024-12-02 16:14:34"> <span>13</span>小时前<span class="com-v-box">2024-12-02 16:14:34</span></time></span></div></div></div><p class="com-article-panel-v2-des">昨天在写一个业务接口,遇到 MySQL 重复读导致的重复插入问题,下面是一段伪代码:</p><div class="com-operations com-article-panel-v2-opt"><span class="com-opt-link link-view"><i class="com-i-view"></i>8</span><span class="com-opt-link link-like"><i class="com-i-like"></i>0</span><span class="com-opt-link link-comment"><i class="com-i-dialog"></i>0</span><span><a href="javascript:;" class="com-opt-link link-share" hotrep="community.tag.tag_detail.activities.article.2472746.sharing"><i class="com-i-share"></i></a><ul class="com-share-options"></ul></span></div></div></div></section><section class="com-article-panel-v2 higher"><a href="/developer/article/2472744" track-click="{&quot;areaId&quot;:113001,&quot;objectType&quot;:&quot;article&quot;,&quot;objectId&quot;:2472744}" track-exposure="{&quot;areaId&quot;:113001,&quot;objectType&quot;:&quot;article&quot;,&quot;objectId&quot;:2472744}" target="_blank" class="com-article-panel-v2-link"></a><div class="com-article-panel-v2-hd"><h3 class="com-article-panel-v2-title">MySQL Limit实现原理</h3><nav class="com-tag-v2-list com-article-panel-v2-tags"><a href="/developer/tag/10244?entry=article" track-click="{&quot;areaId&quot;:113001,&quot;objectType&quot;:&quot;tag&quot;,&quot;objectId&quot;:10244}" class="com-tag-v2">数据库</a><a href="/developer/tag/14827?entry=article" track-click="{&quot;areaId&quot;:113001,&quot;objectType&quot;:&quot;tag&quot;,&quot;objectId&quot;:14827}" class="com-tag-v2">mysql</a></nav></div><div class="com-article-panel-v2-bd"><div class="com-article-panel-v2-object"><span class="com-article-panel-v2-img" style="background-image:url(https://developer.qcloudimg.com/http-save/yehe-9379187/128bf9e59b1c490bd6b6f18360b8728f.jpg?imageView2/2/w/400/h/7000)"></span></div><div class="com-article-panel-v2-cnt"><div class="com-article-panel-v2-user-wrap"><div class="com-media com-user-infos"><a href="/developer/user/9379187" track-click="{&quot;objectType&quot;:&quot;user&quot;,&quot;objectId&quot;:9379187}" target="_blank" class="com-media-object"><span class="com-media-img" style="background-image:url(https://ask.qcloudimg.com/http-save/yehe-9379187/1782064d77e95c8e436cbe93a072a679.jpeg?imageView2/2/w/48/h/7000)"></span></a><div class="com-media-body"><a href="/developer/user/9379187" track-click="{&quot;objectType&quot;:&quot;user&quot;,&quot;objectId&quot;:9379187}" target="_blank" class="author-info name">程序猿川子</a><span class="author-info time"><time dateTime="2024-12-02 16:08:37" title="2024-12-02 16:08:37"> <span>13</span>小时前<span class="com-v-box">2024-12-02 16:08:37</span></time></span></div></div></div><p class="com-article-panel-v2-des">在实际工作中,我们经常会使用 MySQL 中的LIMIT子句来控制查询返回的数据大小,特别是在分页、性能优化等场景中。这篇文章,我们将深入探讨 MySQL 中L...</p><div class="com-operations com-article-panel-v2-opt"><span class="com-opt-link link-view"><i class="com-i-view"></i>14</span><span class="com-opt-link link-like"><i class="com-i-like"></i>0</span><span class="com-opt-link link-comment"><i class="com-i-dialog"></i>0</span><span><a href="javascript:;" class="com-opt-link link-share" hotrep="community.tag.tag_detail.activities.article.2472744.sharing"><i class="com-i-share"></i></a><ul class="com-share-options"></ul></span></div></div></div></section><section class="com-article-panel-v2 higher"><a href="/developer/article/2472712" track-click="{&quot;areaId&quot;:113001,&quot;objectType&quot;:&quot;article&quot;,&quot;objectId&quot;:2472712}" track-exposure="{&quot;areaId&quot;:113001,&quot;objectType&quot;:&quot;article&quot;,&quot;objectId&quot;:2472712}" target="_blank" class="com-article-panel-v2-link"></a><div class="com-article-panel-v2-hd"><h3 class="com-article-panel-v2-title">hhdb数据库介绍(9-19)</h3><nav class="com-tag-v2-list com-article-panel-v2-tags"><a href="/developer/tag/17267?entry=article" track-click="{&quot;areaId&quot;:113001,&quot;objectType&quot;:&quot;tag&quot;,&quot;objectId&quot;:17267}" class="com-tag-v2">服务器</a><a href="/developer/tag/10244?entry=article" track-click="{&quot;areaId&quot;:113001,&quot;objectType&quot;:&quot;tag&quot;,&quot;objectId&quot;:10244}" class="com-tag-v2">数据库</a><a href="/developer/tag/14827?entry=article" track-click="{&quot;areaId&quot;:113001,&quot;objectType&quot;:&quot;tag&quot;,&quot;objectId&quot;:14827}" class="com-tag-v2">mysql</a></nav></div><div class="com-article-panel-v2-bd"><div class="com-article-panel-v2-cnt"><div class="com-article-panel-v2-user-wrap"><div class="com-media com-user-infos"><a href="/developer/user/11367957" track-click="{&quot;objectType&quot;:&quot;user&quot;,&quot;objectId&quot;:11367957}" target="_blank" class="com-media-object"><span class="com-media-img" style="background-image:url(https://developer.qcloudimg.com/http-save/10011/6072fb35dbf120dc5560a559e70d1816.jpg?imageView2/2/w/48/h/7000)"></span></a><div class="com-media-body"><a href="/developer/user/11367957" track-click="{&quot;objectType&quot;:&quot;user&quot;,&quot;objectId&quot;:11367957}" target="_blank" class="author-info name">恒辉信达</a><span class="author-info time"><time dateTime="2024-12-02 14:11:08" title="2024-12-02 14:11:08"> <span>15</span>小时前<span class="com-v-box">2024-12-02 14:11:08</span></time></span></div></div></div><p class="com-article-panel-v2-des">本节主要介绍 HHDB Server与Oracle 数据库中数据类型的详细兼容对比信息。</p><div class="com-operations com-article-panel-v2-opt"><span class="com-opt-link link-view"><i class="com-i-view"></i>20</span><span class="com-opt-link link-like"><i class="com-i-like"></i>0</span><span class="com-opt-link link-comment"><i class="com-i-dialog"></i>0</span><span><a href="javascript:;" class="com-opt-link link-share" hotrep="community.tag.tag_detail.activities.article.2472712.sharing"><i class="com-i-share"></i></a><ul class="com-share-options"></ul></span></div></div></div></section><section class="com-article-panel-v2 higher"><a href="/developer/article/2472668" track-click="{&quot;areaId&quot;:113001,&quot;objectType&quot;:&quot;article&quot;,&quot;objectId&quot;:2472668}" track-exposure="{&quot;areaId&quot;:113001,&quot;objectType&quot;:&quot;article&quot;,&quot;objectId&quot;:2472668}" target="_blank" class="com-article-panel-v2-link"></a><div class="com-article-panel-v2-hd"><h3 class="com-article-panel-v2-title">hhdb数据库介绍(9-18)</h3><nav class="com-tag-v2-list com-article-panel-v2-tags"><a href="/developer/tag/10244?entry=article" track-click="{&quot;areaId&quot;:113001,&quot;objectType&quot;:&quot;tag&quot;,&quot;objectId&quot;:10244}" class="com-tag-v2">数据库</a><a href="/developer/tag/14827?entry=article" track-click="{&quot;areaId&quot;:113001,&quot;objectType&quot;:&quot;tag&quot;,&quot;objectId&quot;:14827}" class="com-tag-v2">mysql</a><a href="/developer/tag/17267?entry=article" track-click="{&quot;areaId&quot;:113001,&quot;objectType&quot;:&quot;tag&quot;,&quot;objectId&quot;:17267}" class="com-tag-v2">服务器</a></nav></div><div class="com-article-panel-v2-bd"><div class="com-article-panel-v2-cnt"><div class="com-article-panel-v2-user-wrap"><div class="com-media com-user-infos"><a href="/developer/user/11367957" track-click="{&quot;objectType&quot;:&quot;user&quot;,&quot;objectId&quot;:11367957}" target="_blank" class="com-media-object"><span class="com-media-img" style="background-image:url(https://developer.qcloudimg.com/http-save/10011/6072fb35dbf120dc5560a559e70d1816.jpg?imageView2/2/w/48/h/7000)"></span></a><div class="com-media-body"><a href="/developer/user/11367957" track-click="{&quot;objectType&quot;:&quot;user&quot;,&quot;objectId&quot;:11367957}" target="_blank" class="author-info name">恒辉信达</a><span class="author-info time"><time dateTime="2024-12-02 11:24:11" title="2024-12-02 11:24:11"> <span>18</span>小时前<span class="com-v-box">2024-12-02 11:24:11</span></time></span></div></div></div><p class="com-article-panel-v2-des">在使用关系集群数据库时,需要先将表的分片规则信息配置好之后才能创建表。实际使用过程中,用户可能对关系集群数据库及分片规则不了解,这就需要一种能直接过渡到HHDB...</p><div class="com-operations com-article-panel-v2-opt"><span class="com-opt-link link-view"><i class="com-i-view"></i>16</span><span class="com-opt-link link-like"><i class="com-i-like"></i>0</span><span class="com-opt-link link-comment"><i class="com-i-dialog"></i>0</span><span><a href="javascript:;" class="com-opt-link link-share" hotrep="community.tag.tag_detail.activities.article.2472668.sharing"><i class="com-i-share"></i></a><ul class="com-share-options"></ul></span></div></div></div></section><section class="com-article-panel-v2 higher"><a href="/developer/article/2472658" track-click="{&quot;areaId&quot;:113001,&quot;objectType&quot;:&quot;article&quot;,&quot;objectId&quot;:2472658}" track-exposure="{&quot;areaId&quot;:113001,&quot;objectType&quot;:&quot;article&quot;,&quot;objectId&quot;:2472658}" target="_blank" class="com-article-panel-v2-link"></a><div class="com-article-panel-v2-hd"><h3 class="com-article-panel-v2-title">hhdb数据库介绍(9-17)</h3><nav class="com-tag-v2-list com-article-panel-v2-tags"><a href="/developer/tag/10244?entry=article" track-click="{&quot;areaId&quot;:113001,&quot;objectType&quot;:&quot;tag&quot;,&quot;objectId&quot;:10244}" class="com-tag-v2">数据库</a><a href="/developer/tag/14827?entry=article" track-click="{&quot;areaId&quot;:113001,&quot;objectType&quot;:&quot;tag&quot;,&quot;objectId&quot;:14827}" class="com-tag-v2">mysql</a><a href="/developer/tag/17267?entry=article" track-click="{&quot;areaId&quot;:113001,&quot;objectType&quot;:&quot;tag&quot;,&quot;objectId&quot;:17267}" class="com-tag-v2">服务器</a></nav></div><div class="com-article-panel-v2-bd"><div class="com-article-panel-v2-cnt"><div class="com-article-panel-v2-user-wrap"><div class="com-media com-user-infos"><a href="/developer/user/11367957" track-click="{&quot;objectType&quot;:&quot;user&quot;,&quot;objectId&quot;:11367957}" target="_blank" class="com-media-object"><span class="com-media-img" style="background-image:url(https://developer.qcloudimg.com/http-save/10011/6072fb35dbf120dc5560a559e70d1816.jpg?imageView2/2/w/48/h/7000)"></span></a><div class="com-media-body"><a href="/developer/user/11367957" track-click="{&quot;objectType&quot;:&quot;user&quot;,&quot;objectId&quot;:11367957}" target="_blank" class="author-info name">恒辉信达</a><span class="author-info time"><time dateTime="2024-12-02 10:41:18" title="2024-12-02 10:41:18"> <span>18</span>小时前<span class="com-v-box">2024-12-02 10:41:18</span></time></span></div></div></div><p class="com-article-panel-v2-des">计算节点对部分variables及status的显示结果做了支持,可通过相关语法查看计算节点连接的存储节点变量信息。</p><div class="com-operations com-article-panel-v2-opt"><span class="com-opt-link link-view"><i class="com-i-view"></i>9</span><span class="com-opt-link link-like"><i class="com-i-like"></i>0</span><span class="com-opt-link link-comment"><i class="com-i-dialog"></i>0</span><span><a href="javascript:;" class="com-opt-link link-share" hotrep="community.tag.tag_detail.activities.article.2472658.sharing"><i class="com-i-share"></i></a><ul class="com-share-options"></ul></span></div></div></div></section><section class="com-article-panel-v2 higher"><a href="/developer/article/2472657" track-click="{&quot;areaId&quot;:113001,&quot;objectType&quot;:&quot;article&quot;,&quot;objectId&quot;:2472657}" track-exposure="{&quot;areaId&quot;:113001,&quot;objectType&quot;:&quot;article&quot;,&quot;objectId&quot;:2472657}" target="_blank" class="com-article-panel-v2-link"></a><div class="com-article-panel-v2-hd"><h3 class="com-article-panel-v2-title">hhdb数据库介绍(9-16)</h3><nav class="com-tag-v2-list com-article-panel-v2-tags"><a href="/developer/tag/10244?entry=article" track-click="{&quot;areaId&quot;:113001,&quot;objectType&quot;:&quot;tag&quot;,&quot;objectId&quot;:10244}" class="com-tag-v2">数据库</a><a href="/developer/tag/14827?entry=article" track-click="{&quot;areaId&quot;:113001,&quot;objectType&quot;:&quot;tag&quot;,&quot;objectId&quot;:14827}" class="com-tag-v2">mysql</a><a href="/developer/tag/17267?entry=article" track-click="{&quot;areaId&quot;:113001,&quot;objectType&quot;:&quot;tag&quot;,&quot;objectId&quot;:17267}" class="com-tag-v2">服务器</a></nav></div><div class="com-article-panel-v2-bd"><div class="com-article-panel-v2-cnt"><div class="com-article-panel-v2-user-wrap"><div class="com-media com-user-infos"><a href="/developer/user/11367957" track-click="{&quot;objectType&quot;:&quot;user&quot;,&quot;objectId&quot;:11367957}" target="_blank" class="com-media-object"><span class="com-media-img" style="background-image:url(https://developer.qcloudimg.com/http-save/10011/6072fb35dbf120dc5560a559e70d1816.jpg?imageView2/2/w/48/h/7000)"></span></a><div class="com-media-body"><a href="/developer/user/11367957" track-click="{&quot;objectType&quot;:&quot;user&quot;,&quot;objectId&quot;:11367957}" target="_blank" class="author-info name">恒辉信达</a><span class="author-info time"><time dateTime="2024-12-02 10:38:09" title="2024-12-02 10:38:09"> <span>18</span>小时前<span class="com-v-box">2024-12-02 10:38:09</span></time></span></div></div></div><p class="com-article-panel-v2-des">计算节点当前仅支持垂直库(即逻辑库仅关联一个数据节点)场景下使用存储过程,自定义函数等语句。</p><div class="com-operations com-article-panel-v2-opt"><span class="com-opt-link link-view"><i class="com-i-view"></i>16</span><span class="com-opt-link link-like"><i class="com-i-like"></i>0</span><span class="com-opt-link link-comment"><i class="com-i-dialog"></i>0</span><span><a href="javascript:;" class="com-opt-link link-share" hotrep="community.tag.tag_detail.activities.article.2472657.sharing"><i class="com-i-share"></i></a><ul class="com-share-options"></ul></span></div></div></div></section><section class="com-article-panel-v2 higher"><a href="/developer/article/2472627" track-click="{&quot;areaId&quot;:113001,&quot;objectType&quot;:&quot;article&quot;,&quot;objectId&quot;:2472627}" track-exposure="{&quot;areaId&quot;:113001,&quot;objectType&quot;:&quot;article&quot;,&quot;objectId&quot;:2472627}" target="_blank" class="com-article-panel-v2-link"></a><div class="com-article-panel-v2-hd"><h3 class="com-article-panel-v2-title">hhdb数据库介绍(9-15)</h3><nav class="com-tag-v2-list com-article-panel-v2-tags"><a href="/developer/tag/10244?entry=article" track-click="{&quot;areaId&quot;:113001,&quot;objectType&quot;:&quot;tag&quot;,&quot;objectId&quot;:10244}" class="com-tag-v2">数据库</a><a href="/developer/tag/14827?entry=article" track-click="{&quot;areaId&quot;:113001,&quot;objectType&quot;:&quot;tag&quot;,&quot;objectId&quot;:14827}" class="com-tag-v2">mysql</a><a href="/developer/tag/17267?entry=article" track-click="{&quot;areaId&quot;:113001,&quot;objectType&quot;:&quot;tag&quot;,&quot;objectId&quot;:17267}" class="com-tag-v2">服务器</a></nav></div><div class="com-article-panel-v2-bd"><div class="com-article-panel-v2-cnt"><div class="com-article-panel-v2-user-wrap"><div class="com-media com-user-infos"><a href="/developer/user/11367957" track-click="{&quot;objectType&quot;:&quot;user&quot;,&quot;objectId&quot;:11367957}" target="_blank" class="com-media-object"><span class="com-media-img" style="background-image:url(https://developer.qcloudimg.com/http-save/10011/6072fb35dbf120dc5560a559e70d1816.jpg?imageView2/2/w/48/h/7000)"></span></a><div class="com-media-body"><a href="/developer/user/11367957" track-click="{&quot;objectType&quot;:&quot;user&quot;,&quot;objectId&quot;:11367957}" target="_blank" class="author-info name">恒辉信达</a><span class="author-info time"><time dateTime="2024-12-02 09:56:51" title="2024-12-02 09:56:51"> <span>19</span>小时前<span class="com-v-box">2024-12-02 09:56:51</span></time></span></div></div></div><p class="com-article-panel-v2-des">在关系集群数据库中,DML语句的逻辑将变的更为复杂。计算节点将DML语句分为两大类:单库DML语句与跨库DML语句。</p><div class="com-operations com-article-panel-v2-opt"><span class="com-opt-link link-view"><i class="com-i-view"></i>14</span><span class="com-opt-link link-like"><i class="com-i-like"></i>0</span><span class="com-opt-link link-comment"><i class="com-i-dialog"></i>0</span><span><a href="javascript:;" class="com-opt-link link-share" hotrep="community.tag.tag_detail.activities.article.2472627.sharing"><i class="com-i-share"></i></a><ul class="com-share-options"></ul></span></div></div></div></section><section class="com-article-panel-v2 higher"><a href="/developer/article/2472605" track-click="{&quot;areaId&quot;:113001,&quot;objectType&quot;:&quot;article&quot;,&quot;objectId&quot;:2472605}" track-exposure="{&quot;areaId&quot;:113001,&quot;objectType&quot;:&quot;article&quot;,&quot;objectId&quot;:2472605}" target="_blank" class="com-article-panel-v2-link"></a><div class="com-article-panel-v2-hd"><h3 class="com-article-panel-v2-title">hhdb数据库介绍(9-14)</h3><nav class="com-tag-v2-list com-article-panel-v2-tags"><a href="/developer/tag/10244?entry=article" track-click="{&quot;areaId&quot;:113001,&quot;objectType&quot;:&quot;tag&quot;,&quot;objectId&quot;:10244}" class="com-tag-v2">数据库</a><a href="/developer/tag/14827?entry=article" track-click="{&quot;areaId&quot;:113001,&quot;objectType&quot;:&quot;tag&quot;,&quot;objectId&quot;:14827}" class="com-tag-v2">mysql</a><a href="/developer/tag/17267?entry=article" track-click="{&quot;areaId&quot;:113001,&quot;objectType&quot;:&quot;tag&quot;,&quot;objectId&quot;:17267}" class="com-tag-v2">服务器</a></nav></div><div class="com-article-panel-v2-bd"><div class="com-article-panel-v2-cnt"><div class="com-article-panel-v2-user-wrap"><div class="com-media com-user-infos"><a href="/developer/user/11367957" track-click="{&quot;objectType&quot;:&quot;user&quot;,&quot;objectId&quot;:11367957}" target="_blank" class="com-media-object"><span class="com-media-img" style="background-image:url(https://developer.qcloudimg.com/http-save/10011/6072fb35dbf120dc5560a559e70d1816.jpg?imageView2/2/w/48/h/7000)"></span></a><div class="com-media-body"><a href="/developer/user/11367957" track-click="{&quot;objectType&quot;:&quot;user&quot;,&quot;objectId&quot;:11367957}" target="_blank" class="author-info name">恒辉信达</a><span class="author-info time"><time dateTime="2024-12-02 09:45:48" title="2024-12-02 09:45:48"> <span>19</span>小时前<span class="com-v-box">2024-12-02 09:45:48</span></time></span></div></div></div><p class="com-article-panel-v2-des">此文档仅列出部分经特殊处理的函数,若需要了解所有计算节点支持的函数,请向官方获取《计算节点最新功能清单》。</p><div class="com-operations com-article-panel-v2-opt"><span class="com-opt-link link-view"><i class="com-i-view"></i>11</span><span class="com-opt-link link-like"><i class="com-i-like"></i>0</span><span class="com-opt-link link-comment"><i class="com-i-dialog"></i>0</span><span><a href="javascript:;" class="com-opt-link link-share" hotrep="community.tag.tag_detail.activities.article.2472605.sharing"><i class="com-i-share"></i></a><ul class="com-share-options"></ul></span></div></div></div></section><section class="com-article-panel-v2 higher"><a href="/developer/article/2472602" track-click="{&quot;areaId&quot;:113001,&quot;objectType&quot;:&quot;article&quot;,&quot;objectId&quot;:2472602}" track-exposure="{&quot;areaId&quot;:113001,&quot;objectType&quot;:&quot;article&quot;,&quot;objectId&quot;:2472602}" target="_blank" class="com-article-panel-v2-link"></a><div class="com-article-panel-v2-hd"><h3 class="com-article-panel-v2-title">hhdb数据库介绍(9-13)</h3><nav class="com-tag-v2-list com-article-panel-v2-tags"><a href="/developer/tag/14827?entry=article" track-click="{&quot;areaId&quot;:113001,&quot;objectType&quot;:&quot;tag&quot;,&quot;objectId&quot;:14827}" class="com-tag-v2">mysql</a><a href="/developer/tag/17267?entry=article" track-click="{&quot;areaId&quot;:113001,&quot;objectType&quot;:&quot;tag&quot;,&quot;objectId&quot;:17267}" class="com-tag-v2">服务器</a><a href="/developer/tag/10244?entry=article" track-click="{&quot;areaId&quot;:113001,&quot;objectType&quot;:&quot;tag&quot;,&quot;objectId&quot;:10244}" class="com-tag-v2">数据库</a></nav></div><div class="com-article-panel-v2-bd"><div class="com-article-panel-v2-cnt"><div class="com-article-panel-v2-user-wrap"><div class="com-media com-user-infos"><a href="/developer/user/11367957" track-click="{&quot;objectType&quot;:&quot;user&quot;,&quot;objectId&quot;:11367957}" target="_blank" class="com-media-object"><span class="com-media-img" style="background-image:url(https://developer.qcloudimg.com/http-save/10011/6072fb35dbf120dc5560a559e70d1816.jpg?imageView2/2/w/48/h/7000)"></span></a><div class="com-media-body"><a href="/developer/user/11367957" track-click="{&quot;objectType&quot;:&quot;user&quot;,&quot;objectId&quot;:11367957}" target="_blank" class="author-info name">恒辉信达</a><span class="author-info time"><time dateTime="2024-12-02 09:39:19" title="2024-12-02 09:39:19"> <span>19</span>小时前<span class="com-v-box">2024-12-02 09:39:19</span></time></span></div></div></div><p class="com-article-panel-v2-des">计算节点支持对高并发SQL语句进行自动的流量控制功能,可以自动识别高消耗SQL且限制同一时间内高消耗SQL执行的并发数和效率,从而稳定数据库服务。也提供查询入口...</p><div class="com-operations com-article-panel-v2-opt"><span class="com-opt-link link-view"><i class="com-i-view"></i>19</span><span class="com-opt-link link-like"><i class="com-i-like"></i>0</span><span class="com-opt-link link-comment"><i class="com-i-dialog"></i>0</span><span><a href="javascript:;" class="com-opt-link link-share" hotrep="community.tag.tag_detail.activities.article.2472602.sharing"><i class="com-i-share"></i></a><ul class="com-share-options"></ul></span></div></div></div></section><section class="com-article-panel-v2 higher"><a href="/developer/article/2472553" track-click="{&quot;areaId&quot;:113001,&quot;objectType&quot;:&quot;article&quot;,&quot;objectId&quot;:2472553}" track-exposure="{&quot;areaId&quot;:113001,&quot;objectType&quot;:&quot;article&quot;,&quot;objectId&quot;:2472553}" target="_blank" class="com-article-panel-v2-link"></a><div class="com-article-panel-v2-hd"><h3 class="com-article-panel-v2-title">MySQL事务大揭秘:事务概述和隔离级别解析</h3><nav class="com-tag-v2-list com-article-panel-v2-tags"><a href="/developer/tag/10244?entry=article" track-click="{&quot;areaId&quot;:113001,&quot;objectType&quot;:&quot;tag&quot;,&quot;objectId&quot;:10244}" class="com-tag-v2">数据库</a><a href="/developer/tag/14827?entry=article" track-click="{&quot;areaId&quot;:113001,&quot;objectType&quot;:&quot;tag&quot;,&quot;objectId&quot;:14827}" class="com-tag-v2">mysql</a><a href="/developer/tag/14833?entry=article" track-click="{&quot;areaId&quot;:113001,&quot;objectType&quot;:&quot;tag&quot;,&quot;objectId&quot;:14833}" class="com-tag-v2">mysql优化</a><a href="/developer/tag/17649?entry=article" track-click="{&quot;areaId&quot;:113001,&quot;objectType&quot;:&quot;tag&quot;,&quot;objectId&quot;:17649}" class="com-tag-v2">事务型数据库</a><a href="/developer/tag/18094?entry=article" track-click="{&quot;areaId&quot;:113001,&quot;objectType&quot;:&quot;tag&quot;,&quot;objectId&quot;:18094}" class="com-tag-v2">腾讯技术创作特训营S10</a></nav></div><div class="com-article-panel-v2-bd"><div class="com-article-panel-v2-object"><span class="com-article-panel-v2-img" style="background-image:url(https://developer.qcloudimg.com/http-save/yehe-11218869/7021636a0b5462f674380669732a867e.jpg?imageView2/2/w/400/h/7000)"></span></div><div class="com-article-panel-v2-cnt"><div class="com-article-panel-v2-user-wrap"><div class="com-media com-user-infos"><a href="/developer/user/11218869" track-click="{&quot;objectType&quot;:&quot;user&quot;,&quot;objectId&quot;:11218869}" target="_blank" class="com-media-object"><span class="com-media-img" style="background-image:url(https://developer.qcloudimg.com/http-save/10011/fda2a4d5928534b39902eaa5d182ac6d.jpg?imageView2/2/w/48/h/7000)"></span></a><div class="com-media-body"><a href="/developer/user/11218869" track-click="{&quot;objectType&quot;:&quot;user&quot;,&quot;objectId&quot;:11218869}" target="_blank" class="author-info name">Lion Long</a><span class="author-info time"><time dateTime="2024-12-01 17:37:53" title="2024-12-01 17:37:53"> <span>1</span>天前<span class="com-v-box">2024-12-01 17:37:53</span></time></span></div></div></div><p class="com-article-panel-v2-des">开始之前推荐一篇实用的文章:《基于生成式人工智能的三维模型自动化设计与优化》,作者:【申公豹】。</p><div class="com-operations com-article-panel-v2-opt"><span class="com-opt-link link-view"><i class="com-i-view"></i>48</span><span class="com-opt-link link-like"><i class="com-i-like"></i>1</span><span class="com-opt-link link-comment"><i class="com-i-dialog"></i>0</span><span><a href="javascript:;" class="com-opt-link link-share" hotrep="community.tag.tag_detail.activities.article.2472553.sharing"><i class="com-i-share"></i></a><ul class="com-share-options"></ul></span></div></div></div></section><section class="com-article-panel-v2 higher"><a href="/developer/article/2472366" track-click="{&quot;areaId&quot;:113001,&quot;objectType&quot;:&quot;article&quot;,&quot;objectId&quot;:2472366}" track-exposure="{&quot;areaId&quot;:113001,&quot;objectType&quot;:&quot;article&quot;,&quot;objectId&quot;:2472366}" target="_blank" class="com-article-panel-v2-link"></a><div class="com-article-panel-v2-hd"><h3 class="com-article-panel-v2-title">如何解决拉取镜像报错Error response from daemon: Get “https://index.docker.io/v1/search?g=mysql&amp;n=25“: conte</h3><nav class="com-tag-v2-list com-article-panel-v2-tags"><a href="/developer/tag/14093?entry=article" track-click="{&quot;areaId&quot;:113001,&quot;objectType&quot;:&quot;tag&quot;,&quot;objectId&quot;:14093}" class="com-tag-v2">io</a><a href="/developer/tag/14827?entry=article" track-click="{&quot;areaId&quot;:113001,&quot;objectType&quot;:&quot;tag&quot;,&quot;objectId&quot;:14827}" class="com-tag-v2">mysql</a><a href="/developer/tag/17335?entry=article" track-click="{&quot;areaId&quot;:113001,&quot;objectType&quot;:&quot;tag&quot;,&quot;objectId&quot;:17335}" class="com-tag-v2">镜像</a><a href="/developer/tag/12883?entry=article" track-click="{&quot;areaId&quot;:113001,&quot;objectType&quot;:&quot;tag&quot;,&quot;objectId&quot;:12883}" class="com-tag-v2">daemon</a><a href="/developer/tag/13274?entry=article" track-click="{&quot;areaId&quot;:113001,&quot;objectType&quot;:&quot;tag&quot;,&quot;objectId&quot;:13274}" class="com-tag-v2">error</a></nav></div><div class="com-article-panel-v2-bd"><div class="com-article-panel-v2-object"><span class="com-article-panel-v2-img" style="background-image:url(https://developer.qcloudimg.com/http-save/yehe-11053981/23014b494307319eb8bccbf3fc399fd2.png?imageView2/2/w/400/h/7000)"></span></div><div class="com-article-panel-v2-cnt"><div class="com-article-panel-v2-user-wrap"><div class="com-media com-user-infos"><a href="/developer/user/11053981" track-click="{&quot;objectType&quot;:&quot;user&quot;,&quot;objectId&quot;:11053981}" target="_blank" class="com-media-object"><span class="com-media-img" style="background-image:url(https://developer.qcloudimg.com/http-save/10011/f04df04fdd011463ff530f5cc86b0052.jpg?imageView2/2/w/48/h/7000)"></span></a><div class="com-media-body"><a href="/developer/user/11053981" track-click="{&quot;objectType&quot;:&quot;user&quot;,&quot;objectId&quot;:11053981}" target="_blank" class="author-info name">猫头虎</a><span class="author-info time"><time dateTime="2024-11-30 09:17:24" title="2024-11-30 09:17:24"> <span>2</span>天前<span class="com-v-box">2024-11-30 09:17:24</span></time></span></div></div></div><p class="com-article-panel-v2-des">在使用 Docker 拉取镜像时,有时会遇到 context deadline exceeded 错误,尤其是在国内网络环境下,Docker 连接到 Docke...</p><div class="com-operations com-article-panel-v2-opt"><span class="com-opt-link link-view"><i class="com-i-view"></i>597</span><span class="com-opt-link link-like"><i class="com-i-like"></i>2</span><span class="com-opt-link link-comment"><i class="com-i-dialog"></i>0</span><span><a href="javascript:;" class="com-opt-link link-share" hotrep="community.tag.tag_detail.activities.article.2472366.sharing"><i class="com-i-share"></i></a><ul class="com-share-options"></ul></span></div></div></div></section><section class="com-article-panel-v2 higher"><a href="/developer/article/2472365" track-click="{&quot;areaId&quot;:113001,&quot;objectType&quot;:&quot;article&quot;,&quot;objectId&quot;:2472365}" track-exposure="{&quot;areaId&quot;:113001,&quot;objectType&quot;:&quot;article&quot;,&quot;objectId&quot;:2472365}" target="_blank" class="com-article-panel-v2-link"></a><div class="com-article-panel-v2-hd"><h3 class="com-article-panel-v2-title">猫头虎分享:如何解决 Docker 拉取镜像Error response from daemon: Get “https://index.docker.io/v1/search?g=mysql&amp;n=2</h3><nav class="com-tag-v2-list com-article-panel-v2-tags"><a href="/developer/tag/12883?entry=article" track-click="{&quot;areaId&quot;:113001,&quot;objectType&quot;:&quot;tag&quot;,&quot;objectId&quot;:12883}" class="com-tag-v2">daemon</a><a href="/developer/tag/14093?entry=article" track-click="{&quot;areaId&quot;:113001,&quot;objectType&quot;:&quot;tag&quot;,&quot;objectId&quot;:14093}" class="com-tag-v2">io</a><a href="/developer/tag/14827?entry=article" track-click="{&quot;areaId&quot;:113001,&quot;objectType&quot;:&quot;tag&quot;,&quot;objectId&quot;:14827}" class="com-tag-v2">mysql</a><a href="/developer/tag/15707?entry=article" track-click="{&quot;areaId&quot;:113001,&quot;objectType&quot;:&quot;tag&quot;,&quot;objectId&quot;:15707}" class="com-tag-v2">response</a><a href="/developer/tag/17335?entry=article" track-click="{&quot;areaId&quot;:113001,&quot;objectType&quot;:&quot;tag&quot;,&quot;objectId&quot;:17335}" class="com-tag-v2">镜像</a></nav></div><div class="com-article-panel-v2-bd"><div class="com-article-panel-v2-object"><span class="com-article-panel-v2-img" style="background-image:url(https://developer.qcloudimg.com/http-save/yehe-11053981/23014b494307319eb8bccbf3fc399fd2.png?imageView2/2/w/400/h/7000)"></span></div><div class="com-article-panel-v2-cnt"><div class="com-article-panel-v2-user-wrap"><div class="com-media com-user-infos"><a href="/developer/user/11053981" track-click="{&quot;objectType&quot;:&quot;user&quot;,&quot;objectId&quot;:11053981}" target="_blank" class="com-media-object"><span class="com-media-img" style="background-image:url(https://developer.qcloudimg.com/http-save/10011/f04df04fdd011463ff530f5cc86b0052.jpg?imageView2/2/w/48/h/7000)"></span></a><div class="com-media-body"><a href="/developer/user/11053981" track-click="{&quot;objectType&quot;:&quot;user&quot;,&quot;objectId&quot;:11053981}" target="_blank" class="author-info name">猫头虎</a><span class="author-info time"><time dateTime="2024-11-30 09:16:59" title="2024-11-30 09:16:59"> <span>2</span>天前<span class="com-v-box">2024-11-30 09:16:59</span></time></span></div></div></div><p class="com-article-panel-v2-des">在使用 Docker 拉取镜像时,有时会遇到 context deadline exceeded 错误,尤其是在国内网络环境下,Docker 连接到 Docke...</p><div class="com-operations com-article-panel-v2-opt"><span class="com-opt-link link-view"><i class="com-i-view"></i>178</span><span class="com-opt-link link-like"><i class="com-i-like"></i>1</span><span class="com-opt-link link-comment"><i class="com-i-dialog"></i>0</span><span><a href="javascript:;" class="com-opt-link link-share" hotrep="community.tag.tag_detail.activities.article.2472365.sharing"><i class="com-i-share"></i></a><ul class="com-share-options"></ul></span></div></div></div></section><section class="com-article-panel-v2 higher"><a href="/developer/article/2472339" track-click="{&quot;areaId&quot;:113001,&quot;objectType&quot;:&quot;article&quot;,&quot;objectId&quot;:2472339}" track-exposure="{&quot;areaId&quot;:113001,&quot;objectType&quot;:&quot;article&quot;,&quot;objectId&quot;:2472339}" target="_blank" class="com-article-panel-v2-link"></a><div class="com-article-panel-v2-hd"><h3 class="com-article-panel-v2-title">深入探索SQL优化:利用慢查询日志和explain提升数据库效率</h3><nav class="com-tag-v2-list com-article-panel-v2-tags"><a href="/developer/tag/10253?entry=article" track-click="{&quot;areaId&quot;:113001,&quot;objectType&quot;:&quot;tag&quot;,&quot;objectId&quot;:10253}" class="com-tag-v2">sql</a><a href="/developer/tag/14827?entry=article" track-click="{&quot;areaId&quot;:113001,&quot;objectType&quot;:&quot;tag&quot;,&quot;objectId&quot;:14827}" class="com-tag-v2">mysql</a><a href="/developer/tag/14833?entry=article" track-click="{&quot;areaId&quot;:113001,&quot;objectType&quot;:&quot;tag&quot;,&quot;objectId&quot;:14833}" class="com-tag-v2">mysql优化</a><a href="/developer/tag/18094?entry=article" track-click="{&quot;areaId&quot;:113001,&quot;objectType&quot;:&quot;tag&quot;,&quot;objectId&quot;:18094}" class="com-tag-v2">腾讯技术创作特训营S10</a><a href="/developer/tag/10244?entry=article" track-click="{&quot;areaId&quot;:113001,&quot;objectType&quot;:&quot;tag&quot;,&quot;objectId&quot;:10244}" class="com-tag-v2">数据库</a></nav></div><div class="com-article-panel-v2-bd"><div class="com-article-panel-v2-object"><span class="com-article-panel-v2-img" style="background-image:url(https://developer.qcloudimg.com/http-save/yehe-11218869/5e0f4d74207ce93e32d48343d9952202.jpg?imageView2/2/w/400/h/7000)"></span></div><div class="com-article-panel-v2-cnt"><div class="com-article-panel-v2-user-wrap"><div class="com-media com-user-infos"><a href="/developer/user/11218869" track-click="{&quot;objectType&quot;:&quot;user&quot;,&quot;objectId&quot;:11218869}" target="_blank" class="com-media-object"><span class="com-media-img" style="background-image:url(https://developer.qcloudimg.com/http-save/10011/fda2a4d5928534b39902eaa5d182ac6d.jpg?imageView2/2/w/48/h/7000)"></span></a><div class="com-media-body"><a href="/developer/user/11218869" track-click="{&quot;objectType&quot;:&quot;user&quot;,&quot;objectId&quot;:11218869}" target="_blank" class="author-info name">Lion Long</a><span class="author-info time"><time dateTime="2024-11-29 21:03:08" title="2024-11-29 21:03:08"> <span>3</span>天前<span class="com-v-box">2024-11-29 21:03:08</span></time></span></div></div></div><p class="com-article-panel-v2-des">开始之前推荐一篇实用的文章:《MySQL存储引擎大厂面试经典三连问》,作者:【小白的大数据之旅】。</p><div class="com-operations com-article-panel-v2-opt"><span class="com-opt-link link-view"><i class="com-i-view"></i>101</span><span class="com-opt-link link-like"><i class="com-i-like"></i>1</span><span class="com-opt-link link-comment"><i class="com-i-dialog"></i>0</span><span><a href="javascript:;" class="com-opt-link link-share" hotrep="community.tag.tag_detail.activities.article.2472339.sharing"><i class="com-i-share"></i></a><ul class="com-share-options"></ul></span></div></div></div></section><section class="com-article-panel-v2 higher"><a href="/developer/article/2472308" track-click="{&quot;areaId&quot;:113001,&quot;objectType&quot;:&quot;article&quot;,&quot;objectId&quot;:2472308}" track-exposure="{&quot;areaId&quot;:113001,&quot;objectType&quot;:&quot;article&quot;,&quot;objectId&quot;:2472308}" target="_blank" class="com-article-panel-v2-link"></a><div class="com-article-panel-v2-hd"><h3 class="com-article-panel-v2-title">hhdb数据库介绍(9-12)</h3><nav class="com-tag-v2-list com-article-panel-v2-tags"><a href="/developer/tag/10244?entry=article" track-click="{&quot;areaId&quot;:113001,&quot;objectType&quot;:&quot;tag&quot;,&quot;objectId&quot;:10244}" class="com-tag-v2">数据库</a><a href="/developer/tag/14827?entry=article" track-click="{&quot;areaId&quot;:113001,&quot;objectType&quot;:&quot;tag&quot;,&quot;objectId&quot;:14827}" class="com-tag-v2">mysql</a><a href="/developer/tag/17267?entry=article" track-click="{&quot;areaId&quot;:113001,&quot;objectType&quot;:&quot;tag&quot;,&quot;objectId&quot;:17267}" class="com-tag-v2">服务器</a></nav></div><div class="com-article-panel-v2-bd"><div class="com-article-panel-v2-cnt"><div class="com-article-panel-v2-user-wrap"><div class="com-media com-user-infos"><a href="/developer/user/11367957" track-click="{&quot;objectType&quot;:&quot;user&quot;,&quot;objectId&quot;:11367957}" target="_blank" class="com-media-object"><span class="com-media-img" style="background-image:url(https://developer.qcloudimg.com/http-save/10011/6072fb35dbf120dc5560a559e70d1816.jpg?imageView2/2/w/48/h/7000)"></span></a><div class="com-media-body"><a href="/developer/user/11367957" track-click="{&quot;objectType&quot;:&quot;user&quot;,&quot;objectId&quot;:11367957}" target="_blank" class="author-info name">恒辉信达</a><span class="author-info time"><time dateTime="2024-11-29 17:44:34" title="2024-11-29 17:44:34"> <span>3</span>天前<span class="com-v-box">2024-11-29 17:44:34</span></time></span></div></div></div><p class="com-article-panel-v2-des">支持在服务端口直接使用SQL语句进行在线查询mysql系统库里的user表数据。伪mysql库的意思是:计算节点在安装后,并不会自动创建一个名为 mysql 的...</p><div class="com-operations com-article-panel-v2-opt"><span class="com-opt-link link-view"><i class="com-i-view"></i>60</span><span class="com-opt-link link-like"><i class="com-i-like"></i>1</span><span class="com-opt-link link-comment"><i class="com-i-dialog"></i>0</span><span><a href="javascript:;" class="com-opt-link link-share" hotrep="community.tag.tag_detail.activities.article.2472308.sharing"><i class="com-i-share"></i></a><ul class="com-share-options"></ul></span></div></div></div></section><section class="com-article-panel-v2 higher"><a href="/developer/article/2472306" track-click="{&quot;areaId&quot;:113001,&quot;objectType&quot;:&quot;article&quot;,&quot;objectId&quot;:2472306}" track-exposure="{&quot;areaId&quot;:113001,&quot;objectType&quot;:&quot;article&quot;,&quot;objectId&quot;:2472306}" target="_blank" class="com-article-panel-v2-link"></a><div class="com-article-panel-v2-hd"><h3 class="com-article-panel-v2-title">hhdb数据库介绍(9-11)</h3><nav class="com-tag-v2-list com-article-panel-v2-tags"><a href="/developer/tag/10244?entry=article" track-click="{&quot;areaId&quot;:113001,&quot;objectType&quot;:&quot;tag&quot;,&quot;objectId&quot;:10244}" class="com-tag-v2">数据库</a><a href="/developer/tag/14827?entry=article" track-click="{&quot;areaId&quot;:113001,&quot;objectType&quot;:&quot;tag&quot;,&quot;objectId&quot;:14827}" class="com-tag-v2">mysql</a><a href="/developer/tag/17267?entry=article" track-click="{&quot;areaId&quot;:113001,&quot;objectType&quot;:&quot;tag&quot;,&quot;objectId&quot;:17267}" class="com-tag-v2">服务器</a></nav></div><div class="com-article-panel-v2-bd"><div class="com-article-panel-v2-cnt"><div class="com-article-panel-v2-user-wrap"><div class="com-media com-user-infos"><a href="/developer/user/11367957" track-click="{&quot;objectType&quot;:&quot;user&quot;,&quot;objectId&quot;:11367957}" target="_blank" class="com-media-object"><span class="com-media-img" style="background-image:url(https://developer.qcloudimg.com/http-save/10011/6072fb35dbf120dc5560a559e70d1816.jpg?imageView2/2/w/48/h/7000)"></span></a><div class="com-media-body"><a href="/developer/user/11367957" track-click="{&quot;objectType&quot;:&quot;user&quot;,&quot;objectId&quot;:11367957}" target="_blank" class="author-info name">恒辉信达</a><span class="author-info time"><time dateTime="2024-11-29 17:38:12" title="2024-11-29 17:38:12"> <span>3</span>天前<span class="com-v-box">2024-11-29 17:38:12</span></time></span></div></div></div><p class="com-article-panel-v2-des">XPLAIN支持显示JOIN语句、UNION/UNION ALL、子查询语句的路由计划。其中:</p><div class="com-operations com-article-panel-v2-opt"><span class="com-opt-link link-view"><i class="com-i-view"></i>45</span><span class="com-opt-link link-like"><i class="com-i-like"></i>1</span><span class="com-opt-link link-comment"><i class="com-i-dialog"></i>0</span><span><a href="javascript:;" class="com-opt-link link-share" hotrep="community.tag.tag_detail.activities.article.2472306.sharing"><i class="com-i-share"></i></a><ul class="com-share-options"></ul></span></div></div></div></section><section class="com-article-panel-v2 higher"><a href="/developer/article/2472304" track-click="{&quot;areaId&quot;:113001,&quot;objectType&quot;:&quot;article&quot;,&quot;objectId&quot;:2472304}" track-exposure="{&quot;areaId&quot;:113001,&quot;objectType&quot;:&quot;article&quot;,&quot;objectId&quot;:2472304}" target="_blank" class="com-article-panel-v2-link"></a><div class="com-article-panel-v2-hd"><h3 class="com-article-panel-v2-title">hhdb数据库介绍(9-10)</h3><nav class="com-tag-v2-list com-article-panel-v2-tags"><a href="/developer/tag/10244?entry=article" track-click="{&quot;areaId&quot;:113001,&quot;objectType&quot;:&quot;tag&quot;,&quot;objectId&quot;:10244}" class="com-tag-v2">数据库</a><a href="/developer/tag/14827?entry=article" track-click="{&quot;areaId&quot;:113001,&quot;objectType&quot;:&quot;tag&quot;,&quot;objectId&quot;:14827}" class="com-tag-v2">mysql</a><a href="/developer/tag/17267?entry=article" track-click="{&quot;areaId&quot;:113001,&quot;objectType&quot;:&quot;tag&quot;,&quot;objectId&quot;:17267}" class="com-tag-v2">服务器</a></nav></div><div class="com-article-panel-v2-bd"><div class="com-article-panel-v2-cnt"><div class="com-article-panel-v2-user-wrap"><div class="com-media com-user-infos"><a href="/developer/user/11367957" track-click="{&quot;objectType&quot;:&quot;user&quot;,&quot;objectId&quot;:11367957}" target="_blank" class="com-media-object"><span class="com-media-img" style="background-image:url(https://developer.qcloudimg.com/http-save/10011/6072fb35dbf120dc5560a559e70d1816.jpg?imageView2/2/w/48/h/7000)"></span></a><div class="com-media-body"><a href="/developer/user/11367957" track-click="{&quot;objectType&quot;:&quot;user&quot;,&quot;objectId&quot;:11367957}" target="_blank" class="author-info name">恒辉信达</a><span class="author-info time"><time dateTime="2024-11-29 17:33:18" title="2024-11-29 17:33:18"> <span>3</span>天前<span class="com-v-box">2024-11-29 17:33:18</span></time></span></div></div></div><p class="com-article-panel-v2-des">HHDB Server在基于关系集群数据库设计的基础上,提供了一些扩展的功能,方便进行使用和管理。</p><div class="com-operations com-article-panel-v2-opt"><span class="com-opt-link link-view"><i class="com-i-view"></i>52</span><span class="com-opt-link link-like"><i class="com-i-like"></i>1</span><span class="com-opt-link link-comment"><i class="com-i-dialog"></i>0</span><span><a href="javascript:;" class="com-opt-link link-share" hotrep="community.tag.tag_detail.activities.article.2472304.sharing"><i class="com-i-share"></i></a><ul class="com-share-options"></ul></span></div></div></div></section><section class="com-article-panel-v2 higher"><a href="/developer/article/2472292" track-click="{&quot;areaId&quot;:113001,&quot;objectType&quot;:&quot;article&quot;,&quot;objectId&quot;:2472292}" track-exposure="{&quot;areaId&quot;:113001,&quot;objectType&quot;:&quot;article&quot;,&quot;objectId&quot;:2472292}" target="_blank" class="com-article-panel-v2-link"></a><div class="com-article-panel-v2-hd"><h3 class="com-article-panel-v2-title">hhdb数据库介绍(9-9)</h3><nav class="com-tag-v2-list com-article-panel-v2-tags"><a href="/developer/tag/10244?entry=article" track-click="{&quot;areaId&quot;:113001,&quot;objectType&quot;:&quot;tag&quot;,&quot;objectId&quot;:10244}" class="com-tag-v2">数据库</a><a href="/developer/tag/14827?entry=article" track-click="{&quot;areaId&quot;:113001,&quot;objectType&quot;:&quot;tag&quot;,&quot;objectId&quot;:14827}" class="com-tag-v2">mysql</a><a href="/developer/tag/17267?entry=article" track-click="{&quot;areaId&quot;:113001,&quot;objectType&quot;:&quot;tag&quot;,&quot;objectId&quot;:17267}" class="com-tag-v2">服务器</a></nav></div><div class="com-article-panel-v2-bd"><div class="com-article-panel-v2-cnt"><div class="com-article-panel-v2-user-wrap"><div class="com-media com-user-infos"><a href="/developer/user/11367957" track-click="{&quot;objectType&quot;:&quot;user&quot;,&quot;objectId&quot;:11367957}" target="_blank" class="com-media-object"><span class="com-media-img" style="background-image:url(https://developer.qcloudimg.com/http-save/10011/6072fb35dbf120dc5560a559e70d1816.jpg?imageView2/2/w/48/h/7000)"></span></a><div class="com-media-body"><a href="/developer/user/11367957" track-click="{&quot;objectType&quot;:&quot;user&quot;,&quot;objectId&quot;:11367957}" target="_blank" class="author-info name">恒辉信达</a><span class="author-info time"><time dateTime="2024-11-29 17:14:18" title="2024-11-29 17:14:18"> <span>3</span>天前<span class="com-v-box">2024-11-29 17:14:18</span></time></span></div></div></div><p class="com-article-panel-v2-des">读写分离功能默认设置为关闭。开启读写分离功能,可在计算节点的配置文件server.xml中,将strategyForRWSplit属性设置为大于0的值。例如:</p><div class="com-operations com-article-panel-v2-opt"><span class="com-opt-link link-view"><i class="com-i-view"></i>55</span><span class="com-opt-link link-like"><i class="com-i-like"></i>1</span><span class="com-opt-link link-comment"><i class="com-i-dialog"></i>0</span><span><a href="javascript:;" class="com-opt-link link-share" hotrep="community.tag.tag_detail.activities.article.2472292.sharing"><i class="com-i-share"></i></a><ul class="com-share-options"></ul></span></div></div></div></section><section class="com-article-panel-v2 higher"><a href="/developer/article/2472290" track-click="{&quot;areaId&quot;:113001,&quot;objectType&quot;:&quot;article&quot;,&quot;objectId&quot;:2472290}" track-exposure="{&quot;areaId&quot;:113001,&quot;objectType&quot;:&quot;article&quot;,&quot;objectId&quot;:2472290}" target="_blank" class="com-article-panel-v2-link"></a><div class="com-article-panel-v2-hd"><h3 class="com-article-panel-v2-title">hhdb数据库介绍(9-8)</h3><nav class="com-tag-v2-list com-article-panel-v2-tags"><a href="/developer/tag/17267?entry=article" track-click="{&quot;areaId&quot;:113001,&quot;objectType&quot;:&quot;tag&quot;,&quot;objectId&quot;:17267}" class="com-tag-v2">服务器</a><a href="/developer/tag/10244?entry=article" track-click="{&quot;areaId&quot;:113001,&quot;objectType&quot;:&quot;tag&quot;,&quot;objectId&quot;:10244}" class="com-tag-v2">数据库</a><a href="/developer/tag/14827?entry=article" track-click="{&quot;areaId&quot;:113001,&quot;objectType&quot;:&quot;tag&quot;,&quot;objectId&quot;:14827}" class="com-tag-v2">mysql</a></nav></div><div class="com-article-panel-v2-bd"><div class="com-article-panel-v2-cnt"><div class="com-article-panel-v2-user-wrap"><div class="com-media com-user-infos"><a href="/developer/user/11367957" track-click="{&quot;objectType&quot;:&quot;user&quot;,&quot;objectId&quot;:11367957}" target="_blank" class="com-media-object"><span class="com-media-img" style="background-image:url(https://developer.qcloudimg.com/http-save/10011/6072fb35dbf120dc5560a559e70d1816.jpg?imageView2/2/w/48/h/7000)"></span></a><div class="com-media-body"><a href="/developer/user/11367957" track-click="{&quot;objectType&quot;:&quot;user&quot;,&quot;objectId&quot;:11367957}" target="_blank" class="author-info name">恒辉信达</a><span class="author-info time"><time dateTime="2024-11-29 17:00:19" title="2024-11-29 17:00:19"> <span>3</span>天前<span class="com-v-box">2024-11-29 17:00:19</span></time></span></div></div></div><p class="com-article-panel-v2-des">HHDB Server支持多计算节点集群的节点自治。以下简称计算节点集群中Primary状态的计算节点为Primary计算节点;计算节点集群中Secondary...</p><div class="com-operations com-article-panel-v2-opt"><span class="com-opt-link link-view"><i class="com-i-view"></i>55</span><span class="com-opt-link link-like"><i class="com-i-like"></i>1</span><span class="com-opt-link link-comment"><i class="com-i-dialog"></i>0</span><span><a href="javascript:;" class="com-opt-link link-share" hotrep="community.tag.tag_detail.activities.article.2472290.sharing"><i class="com-i-share"></i></a><ul class="com-share-options"></ul></span></div></div></div></section></div><div><div class="c-loading c-loading-tip"><div class="c-loading-inner"><div class="one"></div><div class="two"></div><div 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