WordPress清理 wp_postmeta 数据表全攻略

wp_postMeta 数据表是wordpress中存储文章附带信息的，除了一些特定的情况下，里面的数据是没有用的，下面在给出几条语句让你的 wp_postMeta 表变得干净。

数据库。然后执行下面的sql语句清理和优化 wp_postMeta 数据表中的垃圾文件和缓存。

下面两条语句测试安全删除无危险。

Crayon-5c891c946a67e403900980" class="Crayon-Syntax Crayon-theme-classic Crayon-font-monaco Crayon-os-pc print-yes notranslate" data-settings=" minimize scroll-mouSEOver" style=" margin-top: 12px; margin-bottom: 12px; font-size: 12px !important; line-height: 15px !important;">

Crayon-toolbar" data-settings=" mouSEOver overlay hide delay" style="font-size: 12px !important;height: 18px !important; line-height: 18px !important;">Crayon-title">

Crayon-tools" style="font-size: 12px !important;height: 18px !important; line-height: 18px !important;">

Crayon-button Crayon-nums-button" title="Toggle Line Numbers">

Crayon-button-icon">

Crayon-button Crayon-plain-button" title="Toggle Plain Code">

Crayon-button-icon">

Crayon-button Crayon-wrap-button" title="Toggle Line Wrap">

Crayon-button-icon">

Crayon-button Crayon-expand-button" title="Expand Code">

Crayon-button-icon">

Crayon-button Crayon-copy-button" title="copy">

Crayon-button-icon">

Crayon-button Crayon-popup-button" title="Open Code In New Window">

Crayon-button-icon">

Crayon-language">Shell

Crayon-info" style="min-height: 16.8px !important; line-height: 16.8px !important;">

Crayon-plain-wrap">Crayon</a>-plain print-no" data-settings="dblclick" readonly style="-moz-<a href="https://www.jb51.cc/tag/tabsize/" target="_blank" class="keywords">tab-size</a>:4; -o-<a href="https://www.jb51.cc/tag/tabsize/" target="_blank" class="keywords">tab-size</a>:4; -webkit-<a href="https://www.jb51.cc/tag/tabsize/" target="_blank" class="keywords">tab-size</a>:4; <a href="https://www.jb51.cc/tag/tabsize/" target="_blank" class="keywords">tab-size</a>:4; font-size: 12px !important; line-height: 15px !important;"> DELETE FROM wp_post<a href="https://www.jb51.cc/tag/Meta/" target="_blank" class="keywords">Meta</a> WHERE <a href="https://www.jb51.cc/tag/Meta/" target="_blank" class="keywords">Meta</a>_key = '_edit_lock'; DELETE FROM wp_post<a href="https://www.jb51.cc/tag/Meta/" target="_blank" class="keywords">Meta</a> WHERE <a href="https://www.jb51.cc/tag/Meta/" target="_blank" class="keywords">Meta</a>_key = '_edit_last';

Crayon-main" style="">Crayon-table">Crayon-row">

Crayon-nums " data-settings="show"> Crayon-nums-content" style="font-size: 12px !important; line-height: 15px !important;"> Crayon-num" data-line="Crayon-5c891c946a67e403900980-1">1 Crayon-num Crayon-striped-num" data-line="Crayon-5c891c946a67e403900980-2">2 Crayon-code"> Crayon-pre" style="font-size: 12px !important; line-height: 15px !important; -moz-tab-size:4; -o-tab-size:4; -webkit-tab-size:4; tab-size:4;"> Crayon-line" id="Crayon-5c891c946a67e403900980-1">Crayon-e">DELETE Crayon-e">FROM Crayon-e">wp_postMeta Crayon-e">WHERE Crayon-v">Meta_keyCrayon-h"> Crayon-o">=Crayon-h"> Crayon-s">'_edit_lock'Crayon-sy">; Crayon-line Crayon-striped-line" id="Crayon-5c891c946a67e403900980-2">Crayon-e">DELETE Crayon-e">FROM Crayon-e">wp_postMeta Crayon-e">WHERE Crayon-v">Meta_keyCrayon-h"> Crayon-o">=Crayon-h"> Crayon-s">'_edit_last'Crayon-sy">; 以下是新尝试的三条语句，前两条危险性不大。最后一条不太清楚目前作用，但是删除后无任何异常。 Crayon-5c891c946a686503502251" class="Crayon-Syntax Crayon-theme-classic Crayon-font-monaco Crayon-os-pc print-yes notranslate" data-settings=" minimize scroll-mouSEOver" style=" margin-top: 12px; margin-bottom: 12px; font-size: 12px !important; line-height: 15px !important;"> Crayon-toolbar" data-settings=" mouSEOver overlay hide delay" style="font-size: 12px !important;height: 18px !important; line-height: 18px !important;">Crayon-title"> Crayon-tools" style="font-size: 12px !important;height: 18px !important; line-height: 18px !important;"> Crayon-button Crayon-nums-button" title="Toggle Line Numbers"> Crayon-button-icon"> Crayon-button Crayon-plain-button" title="Toggle Plain Code"> Crayon-button-icon"> Crayon-button Crayon-wrap-button" title="Toggle Line Wrap"> Crayon-button-icon"> Crayon-button Crayon-expand-button" title="Expand Code"> Crayon-button-icon"> Crayon-button Crayon-copy-button" title="copy"> Crayon-button-icon"> Crayon-button Crayon-popup-button" title="Open Code In New Window"> Crayon-button-icon"> Crayon-language">Shell Crayon-info" style="min-height: 16.8px !important; line-height: 16.8px !important;"> Crayon-plain-wrap">Crayon</a>-plain print-no" data-settings="dblclick" readonly style="-moz-<a href="https://www.jb51.cc/tag/tabsize/" target="_blank" class="keywords">tab-size</a>:4; -o-<a href="https://www.jb51.cc/tag/tabsize/" target="_blank" class="keywords">tab-size</a>:4; -webkit-<a href="https://www.jb51.cc/tag/tabsize/" target="_blank" class="keywords">tab-size</a>:4; <a href="https://www.jb51.cc/tag/tabsize/" target="_blank" class="keywords">tab-size</a>:4; font-size: 12px !important; line-height: 15px !important;"> DELETE FROM wp_post<a href="https://www.jb51.cc/tag/Meta/" target="_blank" class="keywords">Meta</a> WHERE <a href="https://www.jb51.cc/tag/Meta/" target="_blank" class="keywords">Meta</a>_key = '_wp_old_slug'; DELETE FROM wp_post<a href="https://www.jb51.cc/tag/Meta/" target="_blank" class="keywords">Meta</a> WHERE <a href="https://www.jb51.cc/tag/Meta/" target="_blank" class="keywords">Meta</a>_key = '_revision-control'; DELETE FROM wp_post<a href="https://www.jb51.cc/tag/Meta/" target="_blank" class="keywords">Meta</a> WHERE <a href="https://www.jb51.cc/tag/Meta/" target="_blank" class="keywords">Meta</a>_value = '{{unk<a href="https://www.jb51.cc/tag/Now/" target="_blank" class="keywords">Now</a>n}}'; Crayon-main" style="">Crayon-table">Crayon-row"> Crayon-nums " data-settings="show"> Crayon-nums-content" style="font-size: 12px !important; line-height: 15px !important;"> Crayon-num" data-line="Crayon-5c891c946a686503502251-1">1 Crayon-num Crayon-striped-num" data-line="Crayon-5c891c946a686503502251-2">2 Crayon-num" data-line="Crayon-5c891c946a686503502251-3">3 Crayon-code"> Crayon-pre" style="font-size: 12px !important; line-height: 15px !important; -moz-tab-size:4; -o-tab-size:4; -webkit-tab-size:4; tab-size:4;"> Crayon-line" id="Crayon-5c891c946a686503502251-1">Crayon-e">DELETE Crayon-e">FROM Crayon-e">wp_postMeta Crayon-e">WHERE Crayon-v">Meta_keyCrayon-h"> Crayon-o">=Crayon-h"> Crayon-s">'_wp_old_slug'Crayon-sy">; Crayon-line Crayon-striped-line" id="Crayon-5c891c946a686503502251-2">Crayon-e">DELETE Crayon-e">FROM Crayon-e">wp_postMeta Crayon-e">WHERE Crayon-v">Meta_keyCrayon-h"> Crayon-o">=Crayon-h"> Crayon-s">'_revision-control'Crayon-sy">; Crayon-line" id="Crayon-5c891c946a686503502251-3">Crayon-e">DELETE Crayon-e">FROM Crayon-e">wp_postMeta Crayon-e">WHERE Crayon-v">Meta_valueCrayon-h"> Crayon-o">=Crayon-h"> Crayon-s">'{{unkNown}}'Crayon-sy">; 这五条语句执行完毕能够删除掉95%以上的数据，算的上是极限优化了。通过上面对 wp_postMeta 数据表的优化和清理，我们的数据库瘦身不少，执行效率也有所提升。 相关文章 给WordPress菜单中UL下的某一个或某几个LI添加自定义类 我们有时候在定制WORDPRESS主题的时候，由于菜单样式的要求我... 让WordPress主题支持中文图片及中文附件上传 很多朋友在做wordpree主题制作的时候会经常遇到一个问题，那... 屏蔽wordpress后台无用菜单和模块 提升wordpress运行效率 wordpress后台的模块很多，但并不是每个都经常用到。介绍几段... WordPress导入数据库出现”Unknown collation: ‘utf8mb4_unicode_ci”之类错误的解决办法 从WordPress4.2版本开始，如果我们在MYSQL5.1版本数据中导出... 修改WordPress上传文件大小限制 很多网友会遇到这样一个问题，就是WordPress网站上传图片、附... WordPress代码高亮插件WP-CodeBox 对于经常要在文章中出现代码的IT相关博客，安装一个代码高亮... Copyright © 2018 编程之家. 当前版本 V7.0.16 编程之家 版权所有 闽ICP备13020303号-8