早在 2020 年 8 月，SQL Count() 函数的多种用法文章概述了 COUNT 的许多输入参数变体。使用 COUNT() 函数的另一种方法是将其与 GROUP BY 子句结合使用。将 COUNT() 函数与 GROUP BY 结合使用对于根据各种分组分解计数很有用。在今天的文章中，我们将通过使用 Navicat Premium 作为我们的数据库客户端来查询 Sakila 示例数据库，来学习如何按照不同的准则对计数进行分组。
案例 1：出演过大部分 PG 电影的演员
COUNT() 函数本身可以告诉我们有多少演员出现在 PG 电影中。但是，如果我们想知道每个演员出演了多少部 PG 电影，我们需要将 actor_id 添加到 GROUP BY 子句中。回想一下，GROUP BY 子句将记录分组到汇总行中，并为每个组返回一条记录。GROUP BY 查询通常包含 COUNT、MAX、SUM、AVG 等聚合函数。
这是 SELECT 语句以及查询结果，如 Navicat Premium 中所示：
请注意，当使用 GROUP BY 时，我们还可以按降序对记录进行排序，以便在片目中有最多 PG 电影的演员会出现在结果的顶部。
案例 2：每天租借的电影数量
将 COUNT() 函数应用于 rental 表可以告诉我们总共租借了多少部电影。对于更详细的计数，我们需要使用 GROUP BY 子句。例如，我们可以通过按 rental_date 分组来按天细分计数。我们还必须指定 return_date 不能为 NULL，以便我们不计算已租借但尚未归还的电影。
在这种情况下，不需要 ORDER BY，因为结果是按分组的列（即租用日期）自动排序的。
案例 3：客户每月租借的电影数量
在几个相对简单的例子之后，是时候稍微提高难度了。GROUP BY 子句可以对多个字段进行分组，以获得更细密的表。举个例子，这个查询计算每个客户、每月和每年的电影租借数量：
在这种情况下，我们包含 ORDER BY 以按客户的姓氏（last_name）而不是 customer_id 对结果进行排序。显示月份名称中的月份也做了类似的事情，但根据月份编号进行分组和排序。
总结
在今天的文章中，我们通过使用 Navicat Premium 查询 Sakila 示例数据库，学习了如何按不同准则对计数进行分组。正如我们今天在这里看到的，将 COUNT() 函数与 GROUP BY 结合使用对于根据各种分组分解计数很有用。事实上，如果不将 COUNT() 与 GROUP BY 结合使用，你将很难获得相同的数据！
如果你对 Navicat for SQL Server感兴趣，可以免费试用 14 天！
Rob Gravelle 居住在加拿大渥太华，是一名有 20 多年经验的 IT 专家。过往，Rob 曾为与情报有关的组织（如加拿大边境服务局和各种商业组织）构建系统。在业余时间，Rob 是一名出色的吉他演奏家，并发行了 几张 CD。
Joomla!调试控制台
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时间: 2.28 ms / 54.92 ms 内存: 0.038 MB / 6.54 MB Application: Before Access::getAssetRules (id:8 name:com_content)
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时间: 0.04 ms / 58.14 ms 内存: 0.003 MB / 6.63 MB Application: afterRenderModule mod_custom (Navicat Sitemap)
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33条SQL查询记录 25.77 ms
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SELECT `data`
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FROM `tbw0l_extensions`
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AND `state` = 0
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SELECT b.id
FROM tbw0l_usergroups AS a
LEFT JOIN tbw0l_usergroups AS b
ON b.lft <= a.lft
AND b.rgt >= a.rgt
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SELECT `folder` AS `type`,`element` AS `name`,`params` AS `params`,`extension_id` AS `id`
FROM tbw0l_extensions
WHERE enabled = 1
AND type = 'plugin'
AND state IN (0,1)
AND access IN (1,1,5)
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SELECT `value`
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WHERE `key` = 'cparams'id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE tbw0l_admintools_storage NULL const PRIMARY PRIMARY 402 const 1 100.00 NULL Status Duration starting 0.04 ms Executing hook on transaction 0.00 ms starting 0.01 ms checking permissions 0.01 ms Opening tables 0.02 ms init 0.00 ms System lock 0.01 ms optimizing 0.01 ms statistics 0.03 ms preparing 0.01 ms executing 0.01 ms end 0.00 ms query end 0.00 ms waiting for handler commit 0.01 ms closing tables 0.01 ms freeing items 0.01 ms cleaning up 0.01 ms # Caller File and line number 14 JDatabaseDriverMysqli->execute() JROOT/libraries/joomla/database/driver.php:1740 13 JDatabaseDriver->loadResult() JROOT/administrator/components/com_admintools/Helper/Storage.php:122 12 Akeeba\AdminTools\Admin\Helper\Storage->load() JROOT/administrator/components/com_admintools/Helper/Storage.php:37 11 Akeeba\AdminTools\Admin\Helper\Storage->__construct() JROOT/administrator/components/com_admintools/Helper/Storage.php:49 10 Akeeba\AdminTools\Admin\Helper\Storage::getInstance() JROOT/plugins/system/admintools/admintools/main.php:409 9 plgSystemAdmintools->loadComponentParameters() JROOT/plugins/system/admintools/admintools/main.php:892 8 plgSystemAdmintools->initialize() JROOT/plugins/system/admintools/admintools/main.php:84 7 plgSystemAdmintools->__construct() JROOT/libraries/src/Plugin/PluginHelper.php:280 6 Joomla\CMS\Plugin\PluginHelper::import() JROOT/libraries/src/Plugin/PluginHelper.php:182 5 Joomla\CMS\Plugin\PluginHelper::importPlugin() JROOT/libraries/src/Application/CMSApplication.php:667 4 Joomla\CMS\Application\CMSApplication->initialiseApp() JROOT/libraries/src/Application/SiteApplication.php:686 3 Joomla\CMS\Application\SiteApplication->initialiseApp() JROOT/libraries/src/Application/SiteApplication.php:212 2 Joomla\CMS\Application\SiteApplication->doExecute() JROOT/libraries/src/Application/CMSApplication.php:225 1 Joomla\CMS\Application\CMSApplication->execute() JROOT/index.php:46 - 查询时间：0.24 ms 最后一次查询之后：0.20 ms 查询内存： 0.022 MB 内存（查询 1.567 MB 之前） 返回排数：1
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FROM tbw0l_languages
WHERE published=1
ORDER BY ordering ASCid select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE tbw0l_languages NULL ALL NULL 没有可使用的索引键 NULL NULL 13 10.00 Using where; 使用filesort算法 Status Duration starting 0.03 ms Executing hook on transaction 0.00 ms starting 0.00 ms checking permissions 0.00 ms Opening tables 0.02 ms init 0.00 ms System lock 0.00 ms optimizing 0.01 ms statistics 0.01 ms preparing 0.02 ms executing 0.05 ms end 0.00 ms query end 0.00 ms waiting for handler commit 0.01 ms closing tables 0.01 ms freeing items 0.02 ms cleaning up 0.01 ms # Caller File and line number 13 JDatabaseDriverMysqli->execute() JROOT/libraries/joomla/database/driver.php:1701 12 JDatabaseDriver->loadObjectList() JROOT/libraries/src/Language/LanguageHelper.php:150 11 Joomla\CMS\Language\LanguageHelper::getLanguages() JROOT/plugins/system/admintools/admintools/main.php:700 10 plgSystemAdmintools->loadWAFExceptionsSEF() JROOT/plugins/system/admintools/admintools/main.php:640 9 plgSystemAdmintools->loadWAFExceptions() JROOT/plugins/system/admintools/admintools/main.php:901 8 plgSystemAdmintools->initialize() JROOT/plugins/system/admintools/admintools/main.php:84 7 plgSystemAdmintools->__construct() JROOT/libraries/src/Plugin/PluginHelper.php:280 6 Joomla\CMS\Plugin\PluginHelper::import() JROOT/libraries/src/Plugin/PluginHelper.php:182 5 Joomla\CMS\Plugin\PluginHelper::importPlugin() JROOT/libraries/src/Application/CMSApplication.php:667 4 Joomla\CMS\Application\CMSApplication->initialiseApp() JROOT/libraries/src/Application/SiteApplication.php:686 3 Joomla\CMS\Application\SiteApplication->initialiseApp() JROOT/libraries/src/Application/SiteApplication.php:212 2 Joomla\CMS\Application\SiteApplication->doExecute() JROOT/libraries/src/Application/CMSApplication.php:225 1 Joomla\CMS\Application\CMSApplication->execute() JROOT/index.php:46 - 查询时间：0.23 ms 最后一次查询之后：0.06 ms 查询内存： 0.021 MB 内存（查询 1.575 MB 之前） 返回排数：0
SELECT *
FROM `tbw0l_admintools_wafexceptions`
WHERE NOT(`option` LIKE 'com_%')id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE tbw0l_admintools_wafexceptions NULL ALL NULL 没有可使用的索引键 NULL NULL 1 100.00 Using where Status Duration starting 0.06 ms Executing hook on transaction 0.00 ms starting 0.01 ms checking permissions 0.01 ms Opening tables 0.02 ms init 0.00 ms System lock 0.01 ms optimizing 0.01 ms statistics 0.01 ms preparing 0.01 ms executing 0.02 ms end 0.00 ms query end 0.00 ms waiting for handler commit 0.01 ms closing tables 0.01 ms freeing items 0.02 ms cleaning up 0.01 ms # Caller File and line number 12 JDatabaseDriverMysqli->execute() JROOT/libraries/joomla/database/driver.php:1506 11 JDatabaseDriver->loadAssocList() JROOT/plugins/system/admintools/admintools/main.php:729 10 plgSystemAdmintools->loadWAFExceptionsSEF() JROOT/plugins/system/admintools/admintools/main.php:640 9 plgSystemAdmintools->loadWAFExceptions() JROOT/plugins/system/admintools/admintools/main.php:901 8 plgSystemAdmintools->initialize() JROOT/plugins/system/admintools/admintools/main.php:84 7 plgSystemAdmintools->__construct() JROOT/libraries/src/Plugin/PluginHelper.php:280 6 Joomla\CMS\Plugin\PluginHelper::import() JROOT/libraries/src/Plugin/PluginHelper.php:182 5 Joomla\CMS\Plugin\PluginHelper::importPlugin() JROOT/libraries/src/Application/CMSApplication.php:667 4 Joomla\CMS\Application\CMSApplication->initialiseApp() JROOT/libraries/src/Application/SiteApplication.php:686 3 Joomla\CMS\Application\SiteApplication->initialiseApp() JROOT/libraries/src/Application/SiteApplication.php:212 2 Joomla\CMS\Application\SiteApplication->doExecute() JROOT/libraries/src/Application/CMSApplication.php:225 1 Joomla\CMS\Application\CMSApplication->execute() JROOT/index.php:46 - 查询时间：0.31 ms 最后一次查询之后：1.63 ms 查询内存： 0.023 MB 内存（查询 1.789 MB 之前） 返回排数：26
SELECT `element`,`name`,`client_id`,`extension_id`
FROM `tbw0l_extensions`
WHERE `type` = 'language'
AND `state` = 0
AND `enabled` = 1id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE tbw0l_extensions NULL ref extension extension 82 const 26 1.00 Using where Status Duration starting 0.04 ms Executing hook on transaction 0.00 ms starting 0.00 ms checking permissions 0.00 ms Opening tables 0.02 ms init 0.00 ms System lock 0.00 ms optimizing 0.01 ms statistics 0.04 ms preparing 0.01 ms executing 0.09 ms end 0.01 ms query end 0.00 ms waiting for handler commit 0.01 ms closing tables 0.01 ms freeing items 0.02 ms cleaning up 0.02 ms # Caller File and line number 10 JDatabaseDriverMysqli->execute() JROOT/libraries/joomla/database/driver.php:1701 9 JDatabaseDriver->loadObjectList() JROOT/libraries/src/Language/LanguageHelper.php:209 8 Joomla\CMS\Language\LanguageHelper::getInstalledLanguages() JROOT/plugins/system/languagefilter/languagefilter.php:110 7 PlgSystemLanguageFilter->__construct() JROOT/libraries/src/Plugin/PluginHelper.php:280 6 Joomla\CMS\Plugin\PluginHelper::import() JROOT/libraries/src/Plugin/PluginHelper.php:182 5 Joomla\CMS\Plugin\PluginHelper::importPlugin() JROOT/libraries/src/Application/CMSApplication.php:667 4 Joomla\CMS\Application\CMSApplication->initialiseApp() JROOT/libraries/src/Application/SiteApplication.php:686 3 Joomla\CMS\Application\SiteApplication->initialiseApp() JROOT/libraries/src/Application/SiteApplication.php:212 2 Joomla\CMS\Application\SiteApplication->doExecute() JROOT/libraries/src/Application/CMSApplication.php:225 1 Joomla\CMS\Application\CMSApplication->execute() JROOT/index.php:46 - 查询时间：0.30 ms 最后一次查询之后：3.76 ms 查询内存： 0.021 MB 内存（查询 1.845 MB 之前） 返回排数：0
SELECT `source`,`keepurlparams`
FROM `tbw0l_admintools_redirects`
WHERE ((`dest` = 'company/aboutus/blog/411-%e5%b0%86-sql-count-%e5%87%bd%e6%95%b0%e4%b8%8e-
group-by-%e4%b8%80%e8%b5%b7%e4%bd%bf%e7%94%a8') OR (`dest` = 'company/aboutus/blog/411-%e5%b0%86-sql-count-%e5%87%bd%e6%95%b0%e4%b8%8e-
group-by-%e4%b8%80%e8%b5%b7%e4%bd%bf%e7%94%a8') OR ('company/aboutus/blog/411-%e5%b0%86-sql-count-%e5%87%bd%e6%95%b0%e4%b8%8e-
group-by-%e4%b8%80%e8%b5%b7%e4%bd%bf%e7%94%a8' LIKE `dest`))
AND `published` = '1'
ORDER BY `ordering` DESC
LIMIT 1id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE tbw0l_admintools_redirects NULL ALL NULL 没有可使用的索引键 NULL NULL 1 100.00 Using where; 使用filesort算法 Status Duration starting 0.06 ms Executing hook on transaction 0.00 ms starting 0.00 ms checking permissions 0.01 ms Opening tables 0.03 ms init 0.00 ms System lock 0.01 ms optimizing 0.01 ms statistics 0.02 ms preparing 0.02 ms executing 0.02 ms end 0.00 ms query end 0.00 ms waiting for handler commit 0.01 ms closing tables 0.02 ms freeing items 0.02 ms cleaning up 0.01 ms # Caller File and line number 12 JDatabaseDriverMysqli->execute() JROOT/libraries/joomla/database/driver.php:1773 11 JDatabaseDriver->loadRow() JROOT/plugins/system/admintools/feature/urlredir.php:91 10 AtsystemFeatureUrlredir->onAfterInitialise() JROOT/plugins/system/admintools/admintools/main.php:308 9 plgSystemAdmintools->runFeature() JROOT/plugins/system/admintools/admintools/main.php:144 8 plgSystemAdmintools->onAfterInitialise() JROOT/libraries/joomla/event/event.php:70 7 JEvent->update() JROOT/libraries/joomla/event/dispatcher.php:160 6 JEventDispatcher->trigger() JROOT/libraries/src/Application/BaseApplication.php:108 5 Joomla\CMS\Application\BaseApplication->triggerEvent() JROOT/libraries/src/Application/CMSApplication.php:668 4 Joomla\CMS\Application\CMSApplication->initialiseApp() JROOT/libraries/src/Application/SiteApplication.php:686 3 Joomla\CMS\Application\SiteApplication->initialiseApp() JROOT/libraries/src/Application/SiteApplication.php:212 2 Joomla\CMS\Application\SiteApplication->doExecute() JROOT/libraries/src/Application/CMSApplication.php:225 1 Joomla\CMS\Application\CMSApplication->execute() JROOT/index.php:46 - 查询时间：5.15 ms 最后一次查询之后：0.75 ms 查询内存： 1.033 MB 内存（查询 1.888 MB 之前） 返回排数：730
SELECT m.id, m.menutype, m.title, m.alias, m.note, m.path AS route, m.link, m.type, m.level, m.language,`m`.`browserNav`, m.access, m.params, m.home, m.img, m.template_style_id, m.component_id, m.parent_id,e.element as component
FROM tbw0l_menu AS m
LEFT JOIN tbw0l_extensions AS e
ON m.component_id = e.extension_id
WHERE m.published = 1
AND m.parent_id > 0
AND m.client_id = 0
ORDER BY m.lftid select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE m NULL ALL idx_client_id_parent_id_alias_language 没有可使用的索引键 NULL NULL 746 10.00 Using where; 使用filesort算法 1 SIMPLE e NULL eq_ref PRIMARY PRIMARY 4 cn_navicat_com_20230208.m.component_id 1 100.00 Using where Status Duration starting 0.07 ms Executing hook on transaction 0.00 ms starting 0.01 ms checking permissions 0.00 ms checking permissions 0.00 ms Opening tables 0.03 ms init 0.00 ms System lock 0.01 ms optimizing 0.01 ms statistics 0.05 ms preparing 0.04 ms executing 4.68 ms end 0.01 ms query end 0.00 ms waiting for handler commit 0.13 ms closing tables 0.01 ms freeing items 0.02 ms cleaning up 0.01 ms # Caller File and line number 23 JDatabaseDriverMysqli->execute() JROOT/libraries/joomla/database/driver.php:1701 22 JDatabaseDriver->loadObjectList() JROOT/libraries/src/Menu/SiteMenu.php:93 21 Joomla\CMS\Menu\SiteMenu->Joomla\CMS\Menu\{closure}() Same as call in the line below. 20 call_user_func_array() JROOT/libraries/src/Cache/Controller/CallbackController.php:173 19 Joomla\CMS\Cache\Controller\CallbackController->get() JROOT/libraries/src/Menu/SiteMenu.php:101 18 Joomla\CMS\Menu\SiteMenu->load() JROOT/libraries/src/Menu/AbstractMenu.php:78 17 Joomla\CMS\Menu\AbstractMenu->__construct() JROOT/libraries/src/Menu/SiteMenu.php:62 16 Joomla\CMS\Menu\SiteMenu->__construct() JROOT/libraries/src/Menu/AbstractMenu.php:142 15 Joomla\CMS\Menu\AbstractMenu::getInstance() JROOT/libraries/src/Application/CMSApplication.php:417 14 Joomla\CMS\Application\CMSApplication->getMenu() JROOT/libraries/src/Application/SiteApplication.php:275 13 Joomla\CMS\Application\SiteApplication->getMenu() JROOT/libraries/src/Router/SiteRouter.php:65 12 Joomla\CMS\Router\SiteRouter->__construct() JROOT/libraries/src/Router/Router.php:189 11 Joomla\CMS\Router\Router::getInstance() JROOT/libraries/src/Application/CMSApplication.php:533 10 Joomla\CMS\Application\CMSApplication::getRouter() JROOT/libraries/src/Application/SiteApplication.php:403 9 Joomla\CMS\Application\SiteApplication::getRouter() JROOT/plugins/system/languagefilter/languagefilter.php:145 8 PlgSystemLanguageFilter->onAfterInitialise() JROOT/libraries/joomla/event/event.php:70 7 JEvent->update() JROOT/libraries/joomla/event/dispatcher.php:160 6 JEventDispatcher->trigger() JROOT/libraries/src/Application/BaseApplication.php:108 5 Joomla\CMS\Application\BaseApplication->triggerEvent() JROOT/libraries/src/Application/CMSApplication.php:668 4 Joomla\CMS\Application\CMSApplication->initialiseApp() JROOT/libraries/src/Application/SiteApplication.php:686 3 Joomla\CMS\Application\SiteApplication->initialiseApp() JROOT/libraries/src/Application/SiteApplication.php:212 2 Joomla\CMS\Application\SiteApplication->doExecute() JROOT/libraries/src/Application/CMSApplication.php:225 1 Joomla\CMS\Application\CMSApplication->execute() JROOT/index.php:46 - 查询时间：0.52 ms 最后一次查询之后：5.08 ms 查询内存： 0.022 MB 内存（查询 4.954 MB 之前） 返回排数：0
SELECT c.id, c.asset_id, c.access, c.alias, c.checked_out, c.checked_out_time, c.created_time, c.created_user_id, c.description, c.extension, c.hits, c.language, c.level, c.lft, c.metadata, c.metadesc, c.metakey, c.modified_time, c.note, c.params, c.parent_id, c.path, c.published, c.rgt, c.title, c.modified_user_id, c.version,
CASE WHEN CHAR_LENGTH(c.alias) != 0 THEN CONCAT_WS(':', c.id, c.alias) ELSE c.id END as slug
FROM `tbw0l_categories` AS `s`
INNER JOIN `tbw0l_categories` AS `c`
ON (s.lft < c.lft
AND c.lft < s.rgt
AND c.language IN ('zh-CN','*')) OR (c.lft <= s.lft
AND s.rgt <= c.rgt)
WHERE (c.extension='com_content' OR c.extension='system')
AND c.access IN (1,1,5)
AND c.published = 1
AND s.id = 411
ORDER BY c.lftid select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE NULL NULL NULL NULL 没有可使用的索引键 NULL NULL NULL NULL no matching row in const table Status Duration starting 0.19 ms Executing hook on transaction 0.01 ms starting 0.01 ms checking permissions 0.01 ms checking permissions 0.00 ms Opening tables 0.06 ms init 0.01 ms System lock 0.01 ms optimizing 0.02 ms statistics 0.07 ms executing 0.02 ms end 0.00 ms query end 0.00 ms waiting for handler commit 0.01 ms closing tables 0.01 ms freeing items 0.02 ms cleaning up 0.01 ms # Caller File and line number 14 JDatabaseDriverMysqli->execute() JROOT/libraries/joomla/database/driver.php:1701 13 JDatabaseDriver->loadObjectList() JROOT/libraries/src/Categories/Categories.php:324 12 Joomla\CMS\Categories\Categories->_load() JROOT/libraries/src/Categories/Categories.php:184 11 Joomla\CMS\Categories\Categories->get() JROOT/components/com_content/helpers/legacyrouter.php:350 10 ContentRouterRulesLegacy->parse() JROOT/libraries/src/Component/Router/RouterView.php:266 9 Joomla\CMS\Component\Router\RouterView->parse() JROOT/libraries/src/Router/SiteRouter.php:438 8 Joomla\CMS\Router\SiteRouter->parseSefRoute() JROOT/libraries/src/Router/Router.php:482 7 Joomla\CMS\Router\Router->_parseSefRoute() JROOT/libraries/src/Router/Router.php:227 6 Joomla\CMS\Router\Router->parse() JROOT/libraries/src/Router/SiteRouter.php:139 5 Joomla\CMS\Router\SiteRouter->parse() JROOT/libraries/src/Application/CMSApplication.php:1142 4 Joomla\CMS\Application\CMSApplication->route() JROOT/libraries/src/Application/SiteApplication.php:796 3 Joomla\CMS\Application\SiteApplication->route() JROOT/libraries/src/Application/SiteApplication.php:218 2 Joomla\CMS\Application\SiteApplication->doExecute() JROOT/libraries/src/Application/CMSApplication.php:225 1 Joomla\CMS\Application\CMSApplication->execute() JROOT/index.php:46 - 查询时间：0.20 ms 最后一次查询之后：0.06 ms 查询内存： 0.021 MB 内存（查询 4.959 MB 之前） 返回排数：1
SELECT `alias`,`catid`
FROM `tbw0l_content`
WHERE `id` = 411id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE tbw0l_content NULL const PRIMARY PRIMARY 4 const 1 100.00 NULL Status Duration starting 0.03 ms Executing hook on transaction 0.00 ms starting 0.00 ms checking permissions 0.00 ms Opening tables 0.02 ms init 0.00 ms System lock 0.00 ms optimizing 0.01 ms statistics 0.05 ms preparing 0.01 ms executing 0.01 ms end 0.00 ms query end 0.00 ms waiting for handler commit 0.01 ms closing tables 0.01 ms freeing items 0.02 ms cleaning up 0.01 ms # Caller File and line number 12 JDatabaseDriverMysqli->execute() JROOT/libraries/joomla/database/driver.php:1662 11 JDatabaseDriver->loadObject() JROOT/components/com_content/helpers/legacyrouter.php:366 10 ContentRouterRulesLegacy->parse() JROOT/libraries/src/Component/Router/RouterView.php:266 9 Joomla\CMS\Component\Router\RouterView->parse() JROOT/libraries/src/Router/SiteRouter.php:438 8 Joomla\CMS\Router\SiteRouter->parseSefRoute() JROOT/libraries/src/Router/Router.php:482 7 Joomla\CMS\Router\Router->_parseSefRoute() JROOT/libraries/src/Router/Router.php:227 6 Joomla\CMS\Router\Router->parse() JROOT/libraries/src/Router/SiteRouter.php:139 5 Joomla\CMS\Router\SiteRouter->parse() JROOT/libraries/src/Application/CMSApplication.php:1142 4 Joomla\CMS\Application\CMSApplication->route() JROOT/libraries/src/Application/SiteApplication.php:796 3 Joomla\CMS\Application\SiteApplication->route() JROOT/libraries/src/Application/SiteApplication.php:218 2 Joomla\CMS\Application\SiteApplication->doExecute() JROOT/libraries/src/Application/CMSApplication.php:225 1 Joomla\CMS\Application\CMSApplication->execute() JROOT/index.php:46 - 查询时间：0.27 ms 最后一次查询之后：0.27 ms 查询内存： 0.022 MB 内存（查询 4.982 MB 之前） 返回排数：1
SELECT `extension_id` AS `id`,`element` AS `option`,`params`,`enabled`
FROM `tbw0l_extensions`
WHERE `type` = 'library'
AND `element` = 'joomla'id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE tbw0l_extensions NULL ref element_clientid,element_folder_clientid,extension extension 484 const,const 1 100.00 NULL Status Duration starting 0.04 ms Executing hook on transaction 0.00 ms starting 0.00 ms checking permissions 0.00 ms Opening tables 0.02 ms init 0.03 ms System lock 0.00 ms optimizing 0.01 ms statistics 0.06 ms preparing 0.01 ms executing 0.02 ms end 0.00 ms query end 0.00 ms waiting for handler commit 0.00 ms closing tables 0.01 ms freeing items 0.01 ms cleaning up 0.01 ms # Caller File and line number 15 JDatabaseDriverMysqli->execute() JROOT/libraries/joomla/database/driver.php:1662 14 JDatabaseDriver->loadObject() JROOT/libraries/src/Helper/LibraryHelper.php:167 13 Joomla\CMS\Helper\LibraryHelper::Joomla\CMS\Helper\{closure}() Same as call in the line below. 12 call_user_func_array() JROOT/libraries/src/Cache/Controller/CallbackController.php:173 11 Joomla\CMS\Cache\Controller\CallbackController->get() JROOT/libraries/src/Helper/LibraryHelper.php:175 10 Joomla\CMS\Helper\LibraryHelper::loadLibrary() JROOT/libraries/src/Helper/LibraryHelper.php:43 9 Joomla\CMS\Helper\LibraryHelper::getLibrary() JROOT/libraries/src/Helper/LibraryHelper.php:90 8 Joomla\CMS\Helper\LibraryHelper::getParams() JROOT/libraries/src/Version.php:321 7 Joomla\CMS\Version->getMediaVersion() JROOT/libraries/src/Factory.php:778 6 Joomla\CMS\Factory::createDocument() JROOT/libraries/src/Factory.php:234 5 Joomla\CMS\Factory::getDocument() JROOT/libraries/src/Application/WebApplication.php:1137 4 Joomla\CMS\Application\WebApplication->loadDocument() JROOT/libraries/src/Application/SiteApplication.php:133 3 Joomla\CMS\Application\SiteApplication->dispatch() JROOT/libraries/src/Application/SiteApplication.php:233 2 Joomla\CMS\Application\SiteApplication->doExecute() JROOT/libraries/src/Application/CMSApplication.php:225 1 Joomla\CMS\Application\CMSApplication->execute() JROOT/index.php:46 - 查询时间：2.11 ms 最后一次查询之后：0.11 ms 查询内存： 0.005 MB 内存（查询 4.975 MB 之前）
UPDATE `tbw0l_extensions`
SET `params` = '{\"mediaversion\":\"4ef6fb609e98a7823a419601e5f09800\"}'
WHERE `type` = 'library'
AND `element` = 'joomla'无法EXPLAIN（解释）的查询：UPDATE `tbw0l_extensions` SET `params` = '{\"mediaversion\":\"4ef6fb609e98a7823a419601e5f09800\"}' WHERE `type` = 'library' AND `element` = 'joomla'Status Duration starting 0.03 ms Executing hook on transaction 0.00 ms starting 0.00 ms checking permissions 0.00 ms Opening tables 0.02 ms init 0.00 ms System lock 0.05 ms updating 0.05 ms end 0.00 ms query end 0.00 ms waiting for handler commit 1.89 ms closing tables 0.01 ms freeing items 0.01 ms cleaning up 0.01 ms # Caller File and line number 10 JDatabaseDriverMysqli->execute() JROOT/libraries/src/Helper/LibraryHelper.php:117 9 Joomla\CMS\Helper\LibraryHelper::saveParams() JROOT/libraries/src/Version.php:372 8 Joomla\CMS\Version->setMediaVersion() JROOT/libraries/src/Version.php:331 7 Joomla\CMS\Version->getMediaVersion() JROOT/libraries/src/Factory.php:778 6 Joomla\CMS\Factory::createDocument() JROOT/libraries/src/Factory.php:234 5 Joomla\CMS\Factory::getDocument() JROOT/libraries/src/Application/WebApplication.php:1137 4 Joomla\CMS\Application\WebApplication->loadDocument() JROOT/libraries/src/Application/SiteApplication.php:133 3 Joomla\CMS\Application\SiteApplication->dispatch() JROOT/libraries/src/Application/SiteApplication.php:233 2 Joomla\CMS\Application\SiteApplication->doExecute() JROOT/libraries/src/Application/CMSApplication.php:225 1 Joomla\CMS\Application\CMSApplication->execute() JROOT/index.php:46 - 查询时间：0.38 ms 最后一次查询之后：0.32 ms 查询内存： 0.019 MB 内存（查询 5.010 MB 之前） 返回排数：4
SELECT id, home, template, s.params
FROM tbw0l_template_styles as s
LEFT JOIN tbw0l_extensions as e
ON e.element=s.template
AND e.type='template'
AND e.client_id=s.client_id
WHERE s.client_id = 0
AND e.enabled = 1id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE e NULL ref element_clientid,element_folder_clientid,extension extension 82 const 6 1.00 Using index condition; Using where 1 SIMPLE s NULL ref idx_template,idx_client_id,idx_client_id_home idx_template 202 cn_navicat_com_20230208.e.element 1 66.67 Using index condition; Using where Status Duration starting 0.05 ms Executing hook on transaction 0.00 ms starting 0.00 ms checking permissions 0.00 ms checking permissions 0.00 ms Opening tables 0.03 ms init 0.00 ms System lock 0.01 ms optimizing 0.01 ms statistics 0.07 ms preparing 0.02 ms executing 0.08 ms end 0.01 ms query end 0.00 ms waiting for handler commit 0.01 ms closing tables 0.01 ms freeing items 0.02 ms cleaning up 0.01 ms # Caller File and line number 6 JDatabaseDriverMysqli->execute() JROOT/libraries/joomla/database/driver.php:1701 5 JDatabaseDriver->loadObjectList() JROOT/libraries/src/Application/SiteApplication.php:486 4 Joomla\CMS\Application\SiteApplication->getTemplate() JROOT/libraries/src/Application/SiteApplication.php:168 3 Joomla\CMS\Application\SiteApplication->dispatch() JROOT/libraries/src/Application/SiteApplication.php:233 2 Joomla\CMS\Application\SiteApplication->doExecute() JROOT/libraries/src/Application/CMSApplication.php:225 1 Joomla\CMS\Application\CMSApplication->execute() JROOT/index.php:46 - 查询时间：0.55 ms 最后一次查询之后：0.97 ms 查询内存： 0.027 MB 内存（查询 5.212 MB 之前） 返回排数：35
SELECT `id`,`name`,`rules`,`parent_id`
FROM `tbw0l_assets`
WHERE `name` IN ('root.1','com_actionlogs','com_admin','com_admintools','com_ajax','com_associations','com_banners','com_cache','com_categories','com_checkin','com_config','com_contact','com_content','com_contenthistory','com_cpanel','com_fields','com_finder','com_installer','com_joomlaupdate','com_languages','com_login','com_mailto','com_media','com_menus','com_messages','com_modules','com_newsfeeds','com_plugins','com_postinstall','com_privacy','com_redirect','com_search','com_tags','com_templates','com_users','com_wrapper')id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE tbw0l_assets NULL range idx_asset_name idx_asset_name 202 NULL 36 100.00 Using index condition Status Duration starting 0.07 ms Executing hook on transaction 0.00 ms starting 0.00 ms checking permissions 0.01 ms Opening tables 0.04 ms init 0.01 ms System lock 0.02 ms optimizing 0.01 ms statistics 0.06 ms preparing 0.01 ms executing 0.23 ms end 0.00 ms query end 0.00 ms waiting for handler commit 0.01 ms closing tables 0.01 ms freeing items 0.01 ms cleaning up 0.01 ms # Caller File and line number 18 JDatabaseDriverMysqli->execute() JROOT/libraries/joomla/database/driver.php:1701 17 JDatabaseDriver->loadObjectList() JROOT/libraries/src/Access/Access.php:429 16 Joomla\CMS\Access\Access::preloadComponents() JROOT/libraries/src/Access/Access.php:213 15 Joomla\CMS\Access\Access::preload() JROOT/libraries/src/Access/Access.php:531 14 Joomla\CMS\Access\Access::getAssetRules() JROOT/libraries/src/Access/Access.php:183 13 Joomla\CMS\Access\Access::check() JROOT/libraries/src/User/User.php:398 12 Joomla\CMS\User\User->authorise() JROOT/components/com_content/models/article.php:58 11 ContentModelArticle->populateState() JROOT/libraries/src/MVC/Model/BaseDatabaseModel.php:457 10 Joomla\CMS\MVC\Model\BaseDatabaseModel->getState() JROOT/components/com_content/models/article.php:251 9 ContentModelArticle->hit() JROOT/components/com_content/controller.php:113 8 ContentController->display() JROOT/libraries/src/MVC/Controller/BaseController.php:702 7 Joomla\CMS\MVC\Controller\BaseController->execute() JROOT/components/com_content/content.php:43 6 require_once JROOT/components/com_content/content.php JROOT/libraries/src/Component/ComponentHelper.php:402 5 Joomla\CMS\Component\ComponentHelper::executeComponent() JROOT/libraries/src/Component/ComponentHelper.php:377 4 Joomla\CMS\Component\ComponentHelper::renderComponent() JROOT/libraries/src/Application/SiteApplication.php:194 3 Joomla\CMS\Application\SiteApplication->dispatch() JROOT/libraries/src/Application/SiteApplication.php:233 2 Joomla\CMS\Application\SiteApplication->doExecute() JROOT/libraries/src/Application/CMSApplication.php:225 1 Joomla\CMS\Application\CMSApplication->execute() JROOT/index.php:46 - 查询时间：1.09 ms 最后一次查询之后：0.13 ms 查询内存： 0.180 MB 内存（查询 5.259 MB 之前） 返回排数：1022
SELECT `id`,`name`,`rules`,`parent_id`
FROM `tbw0l_assets`
WHERE `name` LIKE 'com_content.%' OR `name` = 'com_content' OR `parent_id` = 0id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE tbw0l_assets NULL ALL idx_asset_name,idx_parent_id 没有可使用的索引键 NULL NULL 1208 22.96 Using where Status Duration starting 0.03 ms Executing hook on transaction 0.00 ms starting 0.00 ms checking permissions 0.00 ms Opening tables 0.02 ms init 0.00 ms System lock 0.01 ms optimizing 0.01 ms statistics 0.06 ms preparing 0.01 ms executing 0.84 ms end 0.01 ms query end 0.00 ms waiting for handler commit 0.01 ms closing tables 0.01 ms freeing items 0.02 ms cleaning up 0.01 ms # Caller File and line number 18 JDatabaseDriverMysqli->execute() JROOT/libraries/joomla/database/driver.php:1701 17 JDatabaseDriver->loadObjectList() JROOT/libraries/src/Access/Access.php:359 16 Joomla\CMS\Access\Access::preloadPermissions() JROOT/libraries/src/Access/Access.php:226 15 Joomla\CMS\Access\Access::preload() JROOT/libraries/src/Access/Access.php:540 14 Joomla\CMS\Access\Access::getAssetRules() JROOT/libraries/src/Access/Access.php:183 13 Joomla\CMS\Access\Access::check() JROOT/libraries/src/User/User.php:398 12 Joomla\CMS\User\User->authorise() JROOT/components/com_content/models/article.php:58 11 ContentModelArticle->populateState() JROOT/libraries/src/MVC/Model/BaseDatabaseModel.php:457 10 Joomla\CMS\MVC\Model\BaseDatabaseModel->getState() JROOT/components/com_content/models/article.php:251 9 ContentModelArticle->hit() JROOT/components/com_content/controller.php:113 8 ContentController->display() JROOT/libraries/src/MVC/Controller/BaseController.php:702 7 Joomla\CMS\MVC\Controller\BaseController->execute() JROOT/components/com_content/content.php:43 6 require_once JROOT/components/com_content/content.php JROOT/libraries/src/Component/ComponentHelper.php:402 5 Joomla\CMS\Component\ComponentHelper::executeComponent() JROOT/libraries/src/Component/ComponentHelper.php:377 4 Joomla\CMS\Component\ComponentHelper::renderComponent() JROOT/libraries/src/Application/SiteApplication.php:194 3 Joomla\CMS\Application\SiteApplication->dispatch() JROOT/libraries/src/Application/SiteApplication.php:233 2 Joomla\CMS\Application\SiteApplication->doExecute() JROOT/libraries/src/Application/CMSApplication.php:225 1 Joomla\CMS\Application\CMSApplication->execute() JROOT/index.php:46 - 查询时间：1.58 ms 最后一次查询之后：1.16 ms 查询内存： 0.031 MB 内存（查询 6.083 MB 之前） 返回排数：31
SHOW FULL COLUMNS
FROM `tbw0l_content`无法EXPLAIN（解释）的查询：SHOW FULL COLUMNS FROM `tbw0l_content`Status Duration starting 0.05 ms Executing hook on transaction 0.00 ms starting 0.04 ms checking permissions 0.00 ms checking permissions 0.00 ms Opening tables 0.44 ms init 0.01 ms System lock 0.01 ms optimizing 0.02 ms statistics 0.06 ms preparing 0.02 ms Creating tmp table 0.04 ms executing 0.07 ms checking permissions 0.06 ms checking permissions 0.02 ms checking permissions 0.02 ms checking permissions 0.02 ms checking permissions 0.03 ms checking permissions 0.02 ms checking permissions 0.02 ms checking permissions 0.02 ms checking permissions 0.02 ms checking permissions 0.02 ms checking permissions 0.01 ms checking permissions 0.01 ms checking permissions 0.02 ms checking permissions 0.02 ms checking permissions 0.02 ms checking permissions 0.02 ms checking permissions 0.01 ms checking permissions 0.02 ms checking permissions 0.01 ms checking permissions 0.02 ms checking permissions 0.02 ms checking permissions 0.01 ms checking permissions 0.02 ms checking permissions 0.03 ms checking permissions 0.01 ms checking permissions 0.02 ms checking permissions 0.02 ms checking permissions 0.02 ms checking permissions 0.02 ms checking permissions 0.02 ms checking permissions 0.02 ms checking permissions 0.02 ms checking permissions 0.07 ms end 0.00 ms query end 0.00 ms waiting for handler commit 0.01 ms closing tables 0.01 ms freeing items 0.05 ms cleaning up 0.01 ms # Caller File and line number 16 JDatabaseDriverMysqli->execute() JROOT/libraries/joomla/database/driver.php:1701 15 JDatabaseDriver->loadObjectList() JROOT/libraries/joomla/database/driver/mysqli.php:448 14 JDatabaseDriverMysqli->getTableColumns() JROOT/libraries/src/Table/Table.php:261 13 Joomla\CMS\Table\Table->getFields() JROOT/libraries/src/Table/Table.php:180 12 Joomla\CMS\Table\Table->__construct() JROOT/libraries/src/Table/Content.php:39 11 Joomla\CMS\Table\Content->__construct() JROOT/libraries/src/Table/Table.php:328 10 Joomla\CMS\Table\Table::getInstance() JROOT/components/com_content/models/article.php:253 9 ContentModelArticle->hit() JROOT/components/com_content/controller.php:113 8 ContentController->display() JROOT/libraries/src/MVC/Controller/BaseController.php:702 7 Joomla\CMS\MVC\Controller\BaseController->execute() JROOT/components/com_content/content.php:43 6 require_once JROOT/components/com_content/content.php JROOT/libraries/src/Component/ComponentHelper.php:402 5 Joomla\CMS\Component\ComponentHelper::executeComponent() JROOT/libraries/src/Component/ComponentHelper.php:377 4 Joomla\CMS\Component\ComponentHelper::renderComponent() JROOT/libraries/src/Application/SiteApplication.php:194 3 Joomla\CMS\Application\SiteApplication->dispatch() JROOT/libraries/src/Application/SiteApplication.php:233 2 Joomla\CMS\Application\SiteApplication->doExecute() JROOT/libraries/src/Application/CMSApplication.php:225 1 Joomla\CMS\Application\CMSApplication->execute() JROOT/index.php:46 - 查询时间：2.31 ms 最后一次查询之后：0.50 ms 查询内存： 0.005 MB 内存（查询 6.143 MB 之前）
UPDATE tbw0l_content
SET `hits` = (`hits` + 1)
WHERE `id` = '411'无法EXPLAIN（解释）的查询：UPDATE tbw0l_content SET `hits` = (`hits` + 1) WHERE `id` = '411'Status Duration starting 0.03 ms Executing hook on transaction 0.00 ms starting 0.00 ms checking permissions 0.00 ms Opening tables 0.02 ms init 0.00 ms System lock 0.04 ms updating 0.08 ms end 0.01 ms query end 0.00 ms waiting for handler commit 2.01 ms closing tables 0.01 ms freeing items 0.02 ms cleaning up 0.01 ms # Caller File and line number 11 JDatabaseDriverMysqli->execute() JROOT/libraries/src/Table/Table.php:1264 10 Joomla\CMS\Table\Table->hit() JROOT/components/com_content/models/article.php:254 9 ContentModelArticle->hit() JROOT/components/com_content/controller.php:113 8 ContentController->display() JROOT/libraries/src/MVC/Controller/BaseController.php:702 7 Joomla\CMS\MVC\Controller\BaseController->execute() JROOT/components/com_content/content.php:43 6 require_once JROOT/components/com_content/content.php JROOT/libraries/src/Component/ComponentHelper.php:402 5 Joomla\CMS\Component\ComponentHelper::executeComponent() JROOT/libraries/src/Component/ComponentHelper.php:377 4 Joomla\CMS\Component\ComponentHelper::renderComponent() JROOT/libraries/src/Application/SiteApplication.php:194 3 Joomla\CMS\Application\SiteApplication->dispatch() JROOT/libraries/src/Application/SiteApplication.php:233 2 Joomla\CMS\Application\SiteApplication->doExecute() JROOT/libraries/src/Application/CMSApplication.php:225 1 Joomla\CMS\Application\CMSApplication->execute() JROOT/index.php:46 - 查询时间：0.50 ms 最后一次查询之后：0.39 ms 查询内存： 0.039 MB 内存（查询 6.176 MB 之前） 返回排数：1
SELECT a.id, a.asset_id, a.title, a.alias, a.introtext, a.fulltext, a.state, a.catid, a.created, a.created_by, a.created_by_alias,
CASE WHEN a.modified = '0000-00-00 00:00:00' THEN a.created ELSE a.modified END as modified, a.modified_by, a.checked_out, a.checked_out_time, a.publish_up, a.publish_down, a.images, a.urls, a.attribs, a.version, a.ordering, a.metakey, a.metadesc, a.access, a.hits, a.metadata, a.featured, a.language, a.xreference,c.title AS category_title, c.alias AS category_alias, c.access AS category_access,u.name AS author,parent.title as parent_title, parent.id as parent_id, parent.path as parent_route, parent.alias as parent_alias,ROUND(v.rating_sum / v.rating_count, 0) AS rating, v.rating_count as rating_count
FROM tbw0l_content AS a
INNER JOIN tbw0l_categories AS c
on c.id = a.catid
LEFT JOIN tbw0l_users AS u
on u.id = a.created_by
LEFT JOIN tbw0l_categories as parent
ON parent.id = c.parent_id
LEFT JOIN tbw0l_content_rating AS v
ON a.id = v.content_id
WHERE a.id = 411
AND c.published > 0
AND a.language in ('zh-CN','*')
AND (a.publish_up = '0000-00-00 00:00:00' OR a.publish_up <= '2026-09-29 21:16:54')
AND (a.publish_down = '0000-00-00 00:00:00' OR a.publish_down >= '2026-09-29 21:16:54')
AND (a.state = 1 OR a.state =2)id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE a NULL const PRIMARY,idx_state,idx_catid,idx_language PRIMARY 4 const 1 100.00 NULL 1 SIMPLE c NULL const PRIMARY PRIMARY 4 const 1 100.00 NULL 1 SIMPLE u NULL const PRIMARY PRIMARY 4 const 1 100.00 NULL 1 SIMPLE parent NULL const PRIMARY PRIMARY 4 const 1 100.00 NULL 1 SIMPLE v NULL const PRIMARY PRIMARY 4 const 0 0.00 unique row not found Status Duration starting 0.11 ms Executing hook on transaction 0.00 ms starting 0.00 ms checking permissions 0.00 ms checking permissions 0.00 ms checking permissions 0.00 ms checking permissions 0.00 ms checking permissions 0.00 ms Opening tables 0.09 ms init 0.00 ms System lock 0.01 ms optimizing 0.03 ms statistics 0.09 ms preparing 0.01 ms executing 0.03 ms end 0.00 ms query end 0.00 ms waiting for handler commit 0.01 ms closing tables 0.01 ms freeing items 0.02 ms cleaning up 0.01 ms # Caller File and line number 14 JDatabaseDriverMysqli->execute() JROOT/libraries/joomla/database/driver.php:1662 13 JDatabaseDriver->loadObject() JROOT/components/com_content/models/article.php:151 12 ContentModelArticle->getItem() JROOT/libraries/src/MVC/View/HtmlView.php:425 11 Joomla\CMS\MVC\View\HtmlView->get() JROOT/components/com_content/views/article/view.html.php:42 10 ContentViewArticle->display() JROOT/libraries/src/MVC/Controller/BaseController.php:664 9 Joomla\CMS\MVC\Controller\BaseController->display() JROOT/components/com_content/controller.php:118 8 ContentController->display() JROOT/libraries/src/MVC/Controller/BaseController.php:702 7 Joomla\CMS\MVC\Controller\BaseController->execute() JROOT/components/com_content/content.php:43 6 require_once JROOT/components/com_content/content.php JROOT/libraries/src/Component/ComponentHelper.php:402 5 Joomla\CMS\Component\ComponentHelper::executeComponent() JROOT/libraries/src/Component/ComponentHelper.php:377 4 Joomla\CMS\Component\ComponentHelper::renderComponent() JROOT/libraries/src/Application/SiteApplication.php:194 3 Joomla\CMS\Application\SiteApplication->dispatch() JROOT/libraries/src/Application/SiteApplication.php:233 2 Joomla\CMS\Application\SiteApplication->doExecute() JROOT/libraries/src/Application/CMSApplication.php:225 1 Joomla\CMS\Application\CMSApplication->execute() JROOT/index.php:46 - 查询时间：0.49 ms 最后一次查询之后：1.31 ms 查询内存： 0.027 MB 内存（查询 6.257 MB 之前） 返回排数：2
SELECT c.id, c.asset_id, c.access, c.alias, c.checked_out, c.checked_out_time, c.created_time, c.created_user_id, c.description, c.extension, c.hits, c.language, c.level, c.lft, c.metadata, c.metadesc, c.metakey, c.modified_time, c.note, c.params, c.parent_id, c.path, c.published, c.rgt, c.title, c.modified_user_id, c.version,
CASE WHEN CHAR_LENGTH(c.alias) != 0 THEN CONCAT_WS(':', c.id, c.alias) ELSE c.id END as slug
FROM `tbw0l_categories` AS `s`
INNER JOIN `tbw0l_categories` AS `c`
ON (s.lft < c.lft
AND c.lft < s.rgt
AND c.language IN ('zh-CN','*')) OR (c.lft <= s.lft
AND s.rgt <= c.rgt)
WHERE (c.extension='com_content' OR c.extension='system')
AND c.access IN (1,1,5)
AND c.published = 1
AND s.id = 23
ORDER BY c.lftid select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE s NULL const PRIMARY,idx_left_right PRIMARY 4 const 1 100.00 使用filesort算法 1 SIMPLE c NULL range cat_idx,idx_access,idx_left_right,idx_language cat_idx 207 NULL 9 44.72 Using index condition; Using where Status Duration starting 0.09 ms Executing hook on transaction 0.00 ms starting 0.00 ms checking permissions 0.00 ms checking permissions 0.00 ms Opening tables 0.04 ms init 0.00 ms System lock 0.01 ms optimizing 0.02 ms statistics 0.09 ms preparing 0.02 ms executing 0.08 ms end 0.00 ms query end 0.03 ms waiting for handler commit 0.01 ms closing tables 0.01 ms freeing items 0.02 ms cleaning up 0.01 ms # Caller File and line number 24 JDatabaseDriverMysqli->execute() JROOT/libraries/joomla/database/driver.php:1701 23 JDatabaseDriver->loadObjectList() JROOT/libraries/src/Categories/Categories.php:324 22 Joomla\CMS\Categories\Categories->_load() JROOT/libraries/src/Categories/Categories.php:184 21 Joomla\CMS\Categories\Categories->get() JROOT/components/com_content/router.php:72 20 ContentRouter->getCategorySegment() Same as call in the line below. 19 call_user_func_array() JROOT/libraries/src/Component/Router/RouterView.php:120 18 Joomla\CMS\Component\Router\RouterView->getPath() JROOT/libraries/src/Component/Router/Rules/MenuRules.php:111 17 Joomla\CMS\Component\Router\Rules\MenuRules->preprocess() JROOT/libraries/src/Component/Router/RouterView.php:222 16 Joomla\CMS\Component\Router\RouterView->preprocess() JROOT/libraries/src/Router/SiteRouter.php:676 15 Joomla\CMS\Router\SiteRouter->processBuildRules() JROOT/libraries/src/Router/Router.php:266 14 Joomla\CMS\Router\Router->build() JROOT/libraries/src/Router/SiteRouter.php:155 13 Joomla\CMS\Router\SiteRouter->build() JROOT/libraries/src/Router/Route.php:144 12 Joomla\CMS\Router\Route::link() JROOT/libraries/src/Router/Route.php:93 11 Joomla\CMS\Router\Route::_() JROOT/components/com_content/views/article/view.html.php:71 10 ContentViewArticle->display() JROOT/libraries/src/MVC/Controller/BaseController.php:664 9 Joomla\CMS\MVC\Controller\BaseController->display() JROOT/components/com_content/controller.php:118 8 ContentController->display() JROOT/libraries/src/MVC/Controller/BaseController.php:702 7 Joomla\CMS\MVC\Controller\BaseController->execute() JROOT/components/com_content/content.php:43 6 require_once JROOT/components/com_content/content.php JROOT/libraries/src/Component/ComponentHelper.php:402 5 Joomla\CMS\Component\ComponentHelper::executeComponent() JROOT/libraries/src/Component/ComponentHelper.php:377 4 Joomla\CMS\Component\ComponentHelper::renderComponent() JROOT/libraries/src/Application/SiteApplication.php:194 3 Joomla\CMS\Application\SiteApplication->dispatch() JROOT/libraries/src/Application/SiteApplication.php:233 2 Joomla\CMS\Application\SiteApplication->doExecute() JROOT/libraries/src/Application/CMSApplication.php:225 1 Joomla\CMS\Application\CMSApplication->execute() JROOT/index.php:46 - 查询时间：0.31 ms 最后一次查询之后：0.35 ms 查询内存： 0.022 MB 内存（查询 6.352 MB 之前） 返回排数：0
SELECT `m`.`tag_id`,`t`.*
FROM `tbw0l_contentitem_tag_map` AS m
INNER JOIN `tbw0l_tags` AS t
ON `m`.`tag_id` = `t`.`id`
WHERE `m`.`type_alias` = 'com_content.article'
AND `m`.`content_item_id` = 411
AND `t`.`published` = 1
AND t.access IN (1,1,5)id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE m NULL ALL idx_tag_type 没有可使用的索引键 NULL NULL 4 25.00 Using where 1 SIMPLE t NULL eq_ref PRIMARY,tag_idx,idx_access PRIMARY 4 cn_navicat_com_20230208.m.tag_id 1 100.00 Using where Status Duration starting 0.05 ms Executing hook on transaction 0.00 ms starting 0.00 ms checking permissions 0.01 ms checking permissions 0.01 ms Opening tables 0.04 ms init 0.00 ms System lock 0.00 ms optimizing 0.01 ms statistics 0.05 ms preparing 0.02 ms executing 0.03 ms end 0.00 ms query end 0.00 ms waiting for handler commit 0.01 ms closing tables 0.01 ms freeing items 0.02 ms cleaning up 0.01 ms # Caller File and line number 13 JDatabaseDriverMysqli->execute() JROOT/libraries/joomla/database/driver.php:1701 12 JDatabaseDriver->loadObjectList() JROOT/libraries/src/Helper/TagsHelper.php:454 11 Joomla\CMS\Helper\TagsHelper->getItemTags() JROOT/components/com_content/views/article/view.html.php:184 10 ContentViewArticle->display() JROOT/libraries/src/MVC/Controller/BaseController.php:664 9 Joomla\CMS\MVC\Controller\BaseController->display() JROOT/components/com_content/controller.php:118 8 ContentController->display() JROOT/libraries/src/MVC/Controller/BaseController.php:702 7 Joomla\CMS\MVC\Controller\BaseController->execute() JROOT/components/com_content/content.php:43 6 require_once JROOT/components/com_content/content.php JROOT/libraries/src/Component/ComponentHelper.php:402 5 Joomla\CMS\Component\ComponentHelper::executeComponent() JROOT/libraries/src/Component/ComponentHelper.php:377 4 Joomla\CMS\Component\ComponentHelper::renderComponent() JROOT/libraries/src/Application/SiteApplication.php:194 3 Joomla\CMS\Application\SiteApplication->dispatch() JROOT/libraries/src/Application/SiteApplication.php:233 2 Joomla\CMS\Application\SiteApplication->doExecute() JROOT/libraries/src/Application/CMSApplication.php:225 1 Joomla\CMS\Application\CMSApplication->execute() JROOT/index.php:46 - 查询时间：0.54 ms 最后一次查询之后：0.96 ms 查询内存： 0.025 MB 内存（查询 6.415 MB 之前） 返回排数：0
SELECT DISTINCT a.id, a.title, a.name, a.checked_out, a.checked_out_time, a.note, a.state, a.access, a.created_time, a.created_user_id, a.ordering, a.language, a.fieldparams, a.params, a.type, a.default_value, a.context, a.group_id, a.label, a.description, a.required,l.title AS language_title, l.image AS language_image,uc.name AS editor,ag.title AS access_level,ua.name AS author_name,g.title AS group_title, g.access as group_access, g.state AS group_state, g.note as group_note
FROM tbw0l_fields AS a
LEFT JOIN `tbw0l_languages` AS l
ON l.lang_code = a.language
LEFT JOIN tbw0l_users AS uc
ON uc.id=a.checked_out
LEFT JOIN tbw0l_viewlevels AS ag
ON ag.id = a.access
LEFT JOIN tbw0l_users AS ua
ON ua.id = a.created_user_id
LEFT JOIN tbw0l_fields_groups AS g
ON g.id = a.group_id
LEFT JOIN `tbw0l_fields_categories` AS fc
ON fc.field_id = a.id
WHERE a.context = 'com_content.article'
AND (fc.category_id IS NULL OR fc.category_id IN (23,0))
AND a.access IN (1,1,5)
AND (a.group_id = 0 OR g.access IN (1,1,5))
AND a.state = 1
AND (a.group_id = 0 OR g.state = 1)
AND a.language in ('*','zh-CN')
ORDER BY a.ordering ASCid select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE a NULL ref idx_state,idx_access,idx_context,idx_language idx_state 1 const 1 100.00 Using where; Using temporary; 使用filesort算法 1 SIMPLE l NULL eq_ref idx_langcode idx_langcode 28 cn_navicat_com_20230208.a.language 1 100.00 Using index condition 1 SIMPLE uc NULL eq_ref PRIMARY PRIMARY 4 cn_navicat_com_20230208.a.checked_out 1 100.00 NULL 1 SIMPLE ag NULL eq_ref PRIMARY PRIMARY 4 cn_navicat_com_20230208.a.access 1 100.00 Using where 1 SIMPLE ua NULL eq_ref PRIMARY PRIMARY 4 cn_navicat_com_20230208.a.created_user_id 1 100.00 Using where 1 SIMPLE g NULL eq_ref PRIMARY PRIMARY 4 cn_navicat_com_20230208.a.group_id 1 100.00 Using where 1 SIMPLE fc NULL ref PRIMARY PRIMARY 4 cn_navicat_com_20230208.a.id 1 100.00 Using where; Using index; Distinct Status Duration starting 0.09 ms Executing hook on transaction 0.00 ms starting 0.00 ms checking permissions 0.00 ms checking permissions 0.00 ms checking permissions 0.00 ms checking permissions 0.00 ms checking permissions 0.00 ms checking permissions 0.00 ms checking permissions 0.00 ms Opening tables 0.06 ms init 0.00 ms System lock 0.01 ms optimizing 0.02 ms statistics 0.12 ms preparing 0.02 ms Creating tmp table 0.04 ms executing 0.05 ms end 0.00 ms query end 0.00 ms waiting for handler commit 0.01 ms closing tables 0.01 ms freeing items 0.02 ms cleaning up 0.01 ms # Caller File and line number 19 JDatabaseDriverMysqli->execute() JROOT/libraries/joomla/database/driver.php:1701 18 JDatabaseDriver->loadObjectList() JROOT/libraries/src/MVC/Model/BaseDatabaseModel.php:322 17 Joomla\CMS\MVC\Model\BaseDatabaseModel->_getList() JROOT/administrator/components/com_fields/models/fields.php:333 16 FieldsModelFields->_getList() JROOT/libraries/src/MVC/Model/ListModel.php:194 15 Joomla\CMS\MVC\Model\ListModel->getItems() JROOT/administrator/components/com_fields/helpers/fields.php:136 14 FieldsHelper::getFields() JROOT/plugins/system/fields/fields.php:495 13 PlgSystemFields->onContentPrepare() JROOT/libraries/joomla/event/event.php:70 12 JEvent->update() JROOT/libraries/joomla/event/dispatcher.php:160 11 JEventDispatcher->trigger() JROOT/components/com_content/views/article/view.html.php:193 10 ContentViewArticle->display() JROOT/libraries/src/MVC/Controller/BaseController.php:664 9 Joomla\CMS\MVC\Controller\BaseController->display() JROOT/components/com_content/controller.php:118 8 ContentController->display() JROOT/libraries/src/MVC/Controller/BaseController.php:702 7 Joomla\CMS\MVC\Controller\BaseController->execute() JROOT/components/com_content/content.php:43 6 require_once JROOT/components/com_content/content.php JROOT/libraries/src/Component/ComponentHelper.php:402 5 Joomla\CMS\Component\ComponentHelper::executeComponent() JROOT/libraries/src/Component/ComponentHelper.php:377 4 Joomla\CMS\Component\ComponentHelper::renderComponent() JROOT/libraries/src/Application/SiteApplication.php:194 3 Joomla\CMS\Application\SiteApplication->dispatch() JROOT/libraries/src/Application/SiteApplication.php:233 2 Joomla\CMS\Application\SiteApplication->doExecute() JROOT/libraries/src/Application/CMSApplication.php:225 1 Joomla\CMS\Application\CMSApplication->execute() JROOT/index.php:46 - 查询时间：1.45 ms 最后一次查询之后：1.58 ms 查询内存： 0.021 MB 内存（查询 6.517 MB 之前） 返回排数：2
SELECT language,id
FROM `tbw0l_menu`
WHERE home = 1
AND published = 1
AND client_id = 0id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE tbw0l_menu NULL ref idx_client_id_parent_id_alias_language idx_client_id_parent_id_alias_language 1 const 779 1.00 Using where Status Duration starting 0.03 ms Executing hook on transaction 0.00 ms starting 0.00 ms checking permissions 0.00 ms Opening tables 0.02 ms init 0.00 ms System lock 0.00 ms optimizing 0.01 ms statistics 0.04 ms preparing 0.01 ms executing 1.22 ms end 0.01 ms query end 0.00 ms waiting for handler commit 0.01 ms closing tables 0.01 ms freeing items 0.01 ms cleaning up 0.01 ms # Caller File and line number 10 JDatabaseDriverMysqli->execute() JROOT/libraries/joomla/database/driver.php:1701 9 JDatabaseDriver->loadObjectList() JROOT/libraries/src/Language/Multilanguage.php:107 8 Joomla\CMS\Language\Multilanguage::getSiteHomePages() JROOT/plugins/system/languagefilter/languagefilter.php:751 7 PlgSystemLanguageFilter->onAfterDispatch() JROOT/libraries/joomla/event/event.php:70 6 JEvent->update() JROOT/libraries/joomla/event/dispatcher.php:160 5 JEventDispatcher->trigger() JROOT/libraries/src/Application/BaseApplication.php:108 4 Joomla\CMS\Application\BaseApplication->triggerEvent() JROOT/libraries/src/Application/SiteApplication.php:199 3 Joomla\CMS\Application\SiteApplication->dispatch() JROOT/libraries/src/Application/SiteApplication.php:233 2 Joomla\CMS\Application\SiteApplication->doExecute() JROOT/libraries/src/Application/CMSApplication.php:225 1 Joomla\CMS\Application\CMSApplication->execute() JROOT/index.php:46 - 查询时间：0.18 ms 最后一次查询之后：0.17 ms 查询内存： 0.024 MB 内存（查询 6.526 MB 之前） 返回排数：1
SELECT `alias`
FROM `tbw0l_content`
WHERE id = '411'id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE tbw0l_content NULL const PRIMARY PRIMARY 4 const 1 100.00 NULL Status Duration starting 0.02 ms Executing hook on transaction 0.00 ms starting 0.00 ms checking permissions 0.00 ms Opening tables 0.02 ms init 0.00 ms System lock 0.01 ms optimizing 0.01 ms statistics 0.03 ms preparing 0.01 ms executing 0.01 ms end 0.00 ms query end 0.00 ms waiting for handler commit 0.01 ms closing tables 0.01 ms freeing items 0.01 ms cleaning up 0.01 ms # Caller File and line number 19 JDatabaseDriverMysqli->execute() JROOT/libraries/joomla/database/driver.php:1740 18 JDatabaseDriver->loadResult() JROOT/components/com_content/router.php:125 17 ContentRouter->getArticleSegment() Same as call in the line below. 16 call_user_func_array() JROOT/libraries/src/Component/Router/RouterView.php:120 15 Joomla\CMS\Component\Router\RouterView->getPath() JROOT/libraries/src/Component/Router/Rules/MenuRules.php:111 14 Joomla\CMS\Component\Router\Rules\MenuRules->preprocess() JROOT/libraries/src/Component/Router/RouterView.php:222 13 Joomla\CMS\Component\Router\RouterView->preprocess() JROOT/libraries/src/Router/SiteRouter.php:676 12 Joomla\CMS\Router\SiteRouter->processBuildRules() JROOT/libraries/src/Router/Router.php:266 11 Joomla\CMS\Router\Router->build() JROOT/libraries/src/Router/SiteRouter.php:155 10 Joomla\CMS\Router\SiteRouter->build() JROOT/libraries/src/Router/Route.php:144 9 Joomla\CMS\Router\Route::link() JROOT/libraries/src/Router/Route.php:93 8 Joomla\CMS\Router\Route::_() JROOT/plugins/system/languagefilter/languagefilter.php:763 7 PlgSystemLanguageFilter->onAfterDispatch() JROOT/libraries/joomla/event/event.php:70 6 JEvent->update() JROOT/libraries/joomla/event/dispatcher.php:160 5 JEventDispatcher->trigger() JROOT/libraries/src/Application/BaseApplication.php:108 4 Joomla\CMS\Application\BaseApplication->triggerEvent() JROOT/libraries/src/Application/SiteApplication.php:199 3 Joomla\CMS\Application\SiteApplication->dispatch() JROOT/libraries/src/Application/SiteApplication.php:233 2 Joomla\CMS\Application\SiteApplication->doExecute() JROOT/libraries/src/Application/CMSApplication.php:225 1 Joomla\CMS\Application\CMSApplication->execute() JROOT/index.php:46 - 查询时间：0.16 ms 最后一次查询之后：0.07 ms 查询内存： 0.024 MB 内存（查询 6.534 MB 之前） 返回排数：1
SELECT alias
FROM tbw0l_content
WHERE id=411id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE tbw0l_content NULL const PRIMARY PRIMARY 4 const 1 100.00 NULL Status Duration starting 0.03 ms Executing hook on transaction 0.00 ms starting 0.00 ms checking permissions 0.00 ms Opening tables 0.01 ms init 0.00 ms System lock 0.00 ms optimizing 0.01 ms statistics 0.02 ms preparing 0.01 ms executing 0.01 ms end 0.00 ms query end 0.00 ms waiting for handler commit 0.00 ms closing tables 0.00 ms freeing items 0.01 ms cleaning up 0.01 ms # Caller File and line number 17 JDatabaseDriverMysqli->execute() JROOT/libraries/joomla/database/driver.php:1740 16 JDatabaseDriver->loadResult() JROOT/components/com_content/helpers/legacyrouter.php:140 15 ContentRouterRulesLegacy->build() JROOT/libraries/src/Component/Router/RouterView.php:244 14 Joomla\CMS\Component\Router\RouterView->build() JROOT/libraries/src/Router/SiteRouter.php:532 13 Joomla\CMS\Router\SiteRouter->buildSefRoute() JROOT/libraries/src/Router/SiteRouter.php:502 12 Joomla\CMS\Router\SiteRouter->_buildSefRoute() JROOT/libraries/src/Router/Router.php:281 11 Joomla\CMS\Router\Router->build() JROOT/libraries/src/Router/SiteRouter.php:155 10 Joomla\CMS\Router\SiteRouter->build() JROOT/libraries/src/Router/Route.php:144 9 Joomla\CMS\Router\Route::link() JROOT/libraries/src/Router/Route.php:93 8 Joomla\CMS\Router\Route::_() JROOT/plugins/system/languagefilter/languagefilter.php:763 7 PlgSystemLanguageFilter->onAfterDispatch() JROOT/libraries/joomla/event/event.php:70 6 JEvent->update() JROOT/libraries/joomla/event/dispatcher.php:160 5 JEventDispatcher->trigger() JROOT/libraries/src/Application/BaseApplication.php:108 4 Joomla\CMS\Application\BaseApplication->triggerEvent() JROOT/libraries/src/Application/SiteApplication.php:199 3 Joomla\CMS\Application\SiteApplication->dispatch() JROOT/libraries/src/Application/SiteApplication.php:233 2 Joomla\CMS\Application\SiteApplication->doExecute() JROOT/libraries/src/Application/CMSApplication.php:225 1 Joomla\CMS\Application\CMSApplication->execute() JROOT/index.php:46 - 查询时间：0.37 ms 最后一次查询之后：0.24 ms 查询内存： 0.021 MB 内存（查询 6.550 MB 之前） 返回排数：0
SELECT `c2`.`language`,CONCAT_WS(':', `c2`.`id`, `c2`.`alias`) AS `id`,CONCAT_WS(':', ca.id, ca.alias) AS `catid`
FROM `tbw0l_content` AS `c`
INNER JOIN `tbw0l_associations` AS `a`
ON a.id = c.`id`
AND a.context='com_content.item'
INNER JOIN `tbw0l_associations` AS `a2`
ON `a`.`key` = `a2`.`key`
INNER JOIN `tbw0l_content` AS `c2`
ON a2.id = c2.`id`
INNER JOIN `tbw0l_categories` AS `ca`
ON `c2`.`catid` = ca.id
AND ca.extension = 'com_content'
WHERE c.id = 411
AND c2.access IN (1,1,5)
AND c2.language != 'zh-CN'
AND (c2.publish_up = '0000-00-00 00:00:00' OR c2.publish_up <= '2026-09-29 21:16:54')
AND (c2.publish_down = '0000-00-00 00:00:00' OR c2.publish_down >= '2026-09-29 21:16:54')
AND c2.state = 1id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE NULL NULL NULL NULL 没有可使用的索引键 NULL NULL NULL NULL no matching row in const table Status Duration starting 0.06 ms Executing hook on transaction 0.00 ms starting 0.00 ms checking permissions 0.00 ms checking permissions 0.00 ms checking permissions 0.00 ms checking permissions 0.00 ms checking permissions 0.00 ms Opening tables 0.05 ms init 0.00 ms System lock 0.01 ms optimizing 0.03 ms statistics 0.11 ms executing 0.01 ms end 0.00 ms query end 0.00 ms waiting for handler commit 0.01 ms closing tables 0.01 ms freeing items 0.02 ms cleaning up 0.01 ms # Caller File and line number 11 JDatabaseDriverMysqli->execute() JROOT/libraries/joomla/database/driver.php:1701 10 JDatabaseDriver->loadObjectList() JROOT/libraries/src/Language/Associations.php:115 9 Joomla\CMS\Language\Associations::getAssociations() JROOT/components/com_content/helpers/association.php:76 8 ContentHelperAssociation::getAssociations() JROOT/plugins/system/languagefilter/languagefilter.php:783 7 PlgSystemLanguageFilter->onAfterDispatch() JROOT/libraries/joomla/event/event.php:70 6 JEvent->update() JROOT/libraries/joomla/event/dispatcher.php:160 5 JEventDispatcher->trigger() JROOT/libraries/src/Application/BaseApplication.php:108 4 Joomla\CMS\Application\BaseApplication->triggerEvent() JROOT/libraries/src/Application/SiteApplication.php:199 3 Joomla\CMS\Application\SiteApplication->dispatch() JROOT/libraries/src/Application/SiteApplication.php:233 2 Joomla\CMS\Application\SiteApplication->doExecute() JROOT/libraries/src/Application/CMSApplication.php:225 1 Joomla\CMS\Application\CMSApplication->execute() JROOT/index.php:46 - 查询时间：1.50 ms 最后一次查询之后：0.80 ms 查询内存： 0.071 MB 内存（查询 6.587 MB 之前） 返回排数：17
SELECT m.id, m.title, m.module, m.position, m.content, m.showtitle, m.params, mm.menuid
FROM tbw0l_modules AS m
LEFT JOIN tbw0l_modules_menu AS mm
ON mm.moduleid = m.id
LEFT JOIN tbw0l_extensions AS e
ON e.element = m.module
AND e.client_id = m.client_id
WHERE m.published = 1
AND e.enabled = 1
AND (m.publish_up = '0000-00-00 00:00:00' OR m.publish_up <= '2026-09-29 21:16:54')
AND (m.publish_down = '0000-00-00 00:00:00' OR m.publish_down >= '2026-09-29 21:16:54')
AND m.access IN (1,1,5)
AND m.client_id = 0
AND (mm.menuid = 282 OR mm.menuid <= 0)
AND m.language IN ('zh-CN','*')
ORDER BY m.position, m.orderingid select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE m NULL ALL PRIMARY,published,newsfeeds,idx_language 没有可使用的索引键 NULL NULL 122 1.03 Using where; 使用filesort算法 1 SIMPLE e NULL ref element_clientid,element_folder_clientid element_clientid 403 cn_navicat_com_20230208.m.module,const 1 10.00 Using index condition; Using where 1 SIMPLE mm NULL ref PRIMARY PRIMARY 4 cn_navicat_com_20230208.m.id 7 40.00 Using where; Using index Status Duration starting 0.06 ms Executing hook on transaction 0.00 ms starting 0.00 ms checking permissions 0.01 ms checking permissions 0.01 ms checking permissions 0.00 ms Opening tables 0.05 ms init 0.00 ms System lock 0.01 ms optimizing 0.04 ms statistics 0.07 ms preparing 0.03 ms executing 1.14 ms end 0.01 ms query end 0.00 ms waiting for handler commit 0.01 ms closing tables 0.01 ms freeing items 0.02 ms cleaning up 0.01 ms # Caller File and line number 14 JDatabaseDriverMysqli->execute() JROOT/libraries/joomla/database/driver.php:1701 13 JDatabaseDriver->loadObjectList() Same as call in the line below. 12 call_user_func_array() JROOT/libraries/src/Cache/Controller/CallbackController.php:173 11 Joomla\CMS\Cache\Controller\CallbackController->get() JROOT/libraries/src/Helper/ModuleHelper.php:441 10 Joomla\CMS\Helper\ModuleHelper::getModuleList() JROOT/libraries/src/Helper/ModuleHelper.php:371 9 Joomla\CMS\Helper\ModuleHelper::load() JROOT/libraries/src/Helper/ModuleHelper.php:87 8 Joomla\CMS\Helper\ModuleHelper::getModules() JROOT/libraries/src/Document/Renderer/Html/ModulesRenderer.php:45 7 Joomla\CMS\Document\Renderer\Html\ModulesRenderer->render() JROOT/libraries/src/Document/HtmlDocument.php:511 6 Joomla\CMS\Document\HtmlDocument->getBuffer() JROOT/libraries/src/Document/HtmlDocument.php:803 5 Joomla\CMS\Document\HtmlDocument->_renderTemplate() JROOT/libraries/src/Document/HtmlDocument.php:577 4 Joomla\CMS\Document\HtmlDocument->render() JROOT/libraries/src/Application/CMSApplication.php:1112 3 Joomla\CMS\Application\CMSApplication->render() JROOT/libraries/src/Application/SiteApplication.php:778 2 Joomla\CMS\Application\SiteApplication->render() JROOT/libraries/src/Application/CMSApplication.php:231 1 Joomla\CMS\Application\CMSApplication->execute() JROOT/index.php:46 - 查询时间：0.27 ms 最后一次查询之后：1.30 ms 查询内存： 0.022 MB 内存（查询 6.671 MB 之前） 返回排数：5
SELECT `name`,`element`
FROM `tbw0l_extensions`
WHERE `type` = 'plugin'
AND `folder` = 'finder'
AND `enabled` = 1id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE tbw0l_extensions NULL ref extension extension 82 const 102 1.00 Using index condition; Using where Status Duration starting 0.03 ms Executing hook on transaction 0.00 ms starting 0.00 ms checking permissions 0.00 ms Opening tables 0.02 ms init 0.00 ms System lock 0.00 ms optimizing 0.01 ms statistics 0.03 ms preparing 0.01 ms executing 0.07 ms end 0.00 ms query end 0.00 ms waiting for handler commit 0.01 ms closing tables 0.01 ms freeing items 0.01 ms cleaning up 0.01 ms # Caller File and line number 13 JDatabaseDriverMysqli->execute() JROOT/libraries/joomla/database/driver.php:1701 12 JDatabaseDriver->loadObjectList() JROOT/administrator/components/com_finder/helpers/language.php:126 11 FinderHelperLanguage::loadPluginLanguage() JROOT/modules/mod_finder/mod_finder.php:51 10 include JROOT/modules/mod_finder/mod_finder.php JROOT/libraries/src/Helper/ModuleHelper.php:200 9 Joomla\CMS\Helper\ModuleHelper::renderModule() JROOT/libraries/src/Document/Renderer/Html/ModuleRenderer.php:98 8 Joomla\CMS\Document\Renderer\Html\ModuleRenderer->render() JROOT/libraries/src/Document/Renderer/Html/ModulesRenderer.php:47 7 Joomla\CMS\Document\Renderer\Html\ModulesRenderer->render() JROOT/libraries/src/Document/HtmlDocument.php:511 6 Joomla\CMS\Document\HtmlDocument->getBuffer() JROOT/libraries/src/Document/HtmlDocument.php:803 5 Joomla\CMS\Document\HtmlDocument->_renderTemplate() JROOT/libraries/src/Document/HtmlDocument.php:577 4 Joomla\CMS\Document\HtmlDocument->render() JROOT/libraries/src/Application/CMSApplication.php:1112 3 Joomla\CMS\Application\CMSApplication->render() JROOT/libraries/src/Application/SiteApplication.php:778 2 Joomla\CMS\Application\SiteApplication->render() JROOT/libraries/src/Application/CMSApplication.php:231 1 Joomla\CMS\Application\CMSApplication->execute() JROOT/index.php:46 - 查询时间：0.25 ms 最后一次查询之后：0.65 ms 查询内存： 0.024 MB 内存（查询 6.697 MB 之前） 返回排数：4
SELECT `title`
FROM `tbw0l_finder_taxonomy`
WHERE `parent_id` = 1
AND `state` = 1
AND `access` IN (1,1,5)id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE tbw0l_finder_taxonomy NULL ref parent_id,state,access,idx_parent_published parent_id 4 const 4 68.72 Using where Status Duration starting 0.03 ms Executing hook on transaction 0.00 ms starting 0.00 ms checking permissions 0.00 ms Opening tables 0.02 ms init 0.00 ms System lock 0.00 ms optimizing 0.01 ms statistics 0.05 ms preparing 0.01 ms executing 0.02 ms end 0.00 ms query end 0.00 ms waiting for handler commit 0.01 ms closing tables 0.00 ms freeing items 0.01 ms cleaning up 0.01 ms # Caller File and line number 16 JDatabaseDriverMysqli->execute() JROOT/libraries/joomla/database/driver.php:1550 15 JDatabaseDriver->loadColumn() JROOT/administrator/components/com_finder/helpers/indexer/taxonomy.php:258 14 FinderIndexerTaxonomy::getBranchTitles() JROOT/administrator/components/com_finder/helpers/indexer/query.php:750 13 FinderIndexerQuery->processString() JROOT/administrator/components/com_finder/helpers/indexer/query.php:236 12 FinderIndexerQuery->__construct() JROOT/modules/mod_finder/helper.php:84 11 ModFinderHelper::getQuery() JROOT/modules/mod_finder/mod_finder.php:54 10 include JROOT/modules/mod_finder/mod_finder.php JROOT/libraries/src/Helper/ModuleHelper.php:200 9 Joomla\CMS\Helper\ModuleHelper::renderModule() JROOT/libraries/src/Document/Renderer/Html/ModuleRenderer.php:98 8 Joomla\CMS\Document\Renderer\Html\ModuleRenderer->render() JROOT/libraries/src/Document/Renderer/Html/ModulesRenderer.php:47 7 Joomla\CMS\Document\Renderer\Html\ModulesRenderer->render() JROOT/libraries/src/Document/HtmlDocument.php:511 6 Joomla\CMS\Document\HtmlDocument->getBuffer() JROOT/libraries/src/Document/HtmlDocument.php:803 5 Joomla\CMS\Document\HtmlDocument->_renderTemplate() JROOT/libraries/src/Document/HtmlDocument.php:577 4 Joomla\CMS\Document\HtmlDocument->render() JROOT/libraries/src/Application/CMSApplication.php:1112 3 Joomla\CMS\Application\CMSApplication->render() JROOT/libraries/src/Application/SiteApplication.php:778 2 Joomla\CMS\Application\SiteApplication->render() JROOT/libraries/src/Application/CMSApplication.php:231 1 Joomla\CMS\Application\CMSApplication->execute() JROOT/index.php:46
30 个查询类型记录，按记录升序排序
选择表：
2 × SELECT `id`,`name`,`rules`,`parent_id`
FROM `tbw0l_assets`2 × SELECT `extension_id` AS `id`,`element` AS `option`,`params`,`enabled`
FROM `tbw0l_extensions`2 × SELECT c.id, c.asset_id, c.access, c.alias, c.checked_out, c.checked_out_time, c.created_time, c.created_user_id, c.description, c.extension, c.hits, c.language, c.level, c.lft, c.metadata, c.metadesc, c.metakey, c.modified_time, c.note, c.params, c.parent_id, c.path, c.published, c.rgt, c.title, c.modified_user_id, c.version,
CASE WHEN CHAR_LENGTH(c.alias) != 0 THEN CONCAT_WS(':', c.id, c.alias) ELSE c.id END as slug
FROM `tbw0l_categories` AS `s`
INNER JOIN `tbw0l_categories` AS `c`
ON (s.lft < c.lft
AND c.lft < s.rgt
AND c.language IN ('zh-CN','*')) OR (c.lft <= s.lft
AND s.rgt <= c.rgt)1 × SELECT `data`
FROM `tbw0l_session`1 × SELECT `name`,`element`
FROM `tbw0l_extensions`1 × SELECT m.id, m.title, m.module, m.position, m.content, m.showtitle, m.params, mm.menuid
FROM tbw0l_modules AS m
LEFT JOIN tbw0l_modules_menu AS mm
ON mm.moduleid = m.id
LEFT JOIN tbw0l_extensions AS e
ON e.element = m.module
AND e.client_id = m.client_id1 × SELECT `c2`.`language`,CONCAT_WS(':', `c2`.`id`, `c2`.`alias`) AS `id`,CONCAT_WS(':', ca.id, ca.alias) AS `catid`
FROM `tbw0l_content` AS `c`
INNER JOIN `tbw0l_associations` AS `a`
ON a.id = c.`id`
AND a.context='com_content.item'
INNER JOIN `tbw0l_associations` AS `a2`
ON `a`.`key` = `a2`.`key`
INNER JOIN `tbw0l_content` AS `c2`
ON a2.id = c2.`id`
INNER JOIN `tbw0l_categories` AS `ca`
ON `c2`.`catid` = ca.id
AND ca.extension = 'com_content'1 × SELECT alias
FROM tbw0l_content1 × SELECT `alias`
FROM `tbw0l_content`1 × SELECT language,id
FROM `tbw0l_menu`1 × SELECT DISTINCT a.id, a.title, a.name, a.checked_out, a.checked_out_time, a.note, a.state, a.access, a.created_time, a.created_user_id, a.ordering, a.language, a.fieldparams, a.params, a.type, a.default_value, a.context, a.group_id, a.label, a.description, a.required,l.title AS language_title, l.image AS language_image,uc.name AS editor,ag.title AS access_level,ua.name AS author_name,g.title AS group_title, g.access as group_access, g.state AS group_state, g.note as group_note
FROM tbw0l_fields AS a
LEFT JOIN `tbw0l_languages` AS l
ON l.lang_code = a.language
LEFT JOIN tbw0l_users AS uc
ON uc.id=a.checked_out
LEFT JOIN tbw0l_viewlevels AS ag
ON ag.id = a.access
LEFT JOIN tbw0l_users AS ua
ON ua.id = a.created_user_id
LEFT JOIN tbw0l_fields_groups AS g
ON g.id = a.group_id
LEFT JOIN `tbw0l_fields_categories` AS fc
ON fc.field_id = a.id1 × SELECT `m`.`tag_id`,`t`.*
FROM `tbw0l_contentitem_tag_map` AS m
INNER JOIN `tbw0l_tags` AS t
ON `m`.`tag_id` = `t`.`id`1 × SELECT a.id, a.asset_id, a.title, a.alias, a.introtext, a.fulltext, a.state, a.catid, a.created, a.created_by, a.created_by_alias,
CASE WHEN a.modified = '0000-00-00 00:00:00' THEN a.created ELSE a.modified END as modified, a.modified_by, a.checked_out, a.checked_out_time, a.publish_up, a.publish_down, a.images, a.urls, a.attribs, a.version, a.ordering, a.metakey, a.metadesc, a.access, a.hits, a.metadata, a.featured, a.language, a.xreference,c.title AS category_title, c.alias AS category_alias, c.access AS category_access,u.name AS author,parent.title as parent_title, parent.id as parent_id, parent.path as parent_route, parent.alias as parent_alias,ROUND(v.rating_sum / v.rating_count, 0) AS rating, v.rating_count as rating_count
FROM tbw0l_content AS a
INNER JOIN tbw0l_categories AS c
on c.id = a.catid
LEFT JOIN tbw0l_users AS u
on u.id = a.created_by
LEFT JOIN tbw0l_categories as parent
ON parent.id = c.parent_id
LEFT JOIN tbw0l_content_rating AS v
ON a.id = v.content_id1 × SELECT `alias`,`catid`
FROM `tbw0l_content`1 × SELECT id, home, template, s.params
FROM tbw0l_template_styles as s
LEFT JOIN tbw0l_extensions as e
ON e.element=s.template
AND e.type='template'
AND e.client_id=s.client_id1 × SELECT `session_id`
FROM `tbw0l_session`1 × SELECT m.id, m.menutype, m.title, m.alias, m.note, m.path AS route, m.link, m.type, m.level, m.language,`m`.`browserNav`, m.access, m.params, m.home, m.img, m.template_style_id, m.component_id, m.parent_id,e.element as component
FROM tbw0l_menu AS m
LEFT JOIN tbw0l_extensions AS e
ON m.component_id = e.extension_id1 × SELECT `source`,`keepurlparams`
FROM `tbw0l_admintools_redirects`1 × SELECT `element`,`name`,`client_id`,`extension_id`
FROM `tbw0l_extensions`1 × SELECT *
FROM `tbw0l_admintools_wafexceptions`1 × SELECT *
FROM tbw0l_languages1 × SELECT `value`
FROM `tbw0l_admintools_storage`1 × SELECT `folder` AS `type`,`element` AS `name`,`params` AS `params`,`extension_id` AS `id`
FROM tbw0l_extensions1 × SELECT b.id
FROM tbw0l_usergroups AS a
LEFT JOIN tbw0l_usergroups AS b
ON b.lft <= a.lft
AND b.rgt >= a.rgt1 × SELECT id, rules
FROM `tbw0l_viewlevels1 × SELECT `title`
FROM `tbw0l_finder_taxonomy`
其它表：
1 × INSERT INTO `tbw0l_session` (`session_id`,`guest`,`time`,`userid`,`username`,`client_id`)
VALUES (X'3238686e67627332616776696b37656f31616e75756764677361', 1, 1790716613, 0, '', 01 × UPDATE `tbw0l_extensions`
SET `params` = '{\"mediaversion\":\"4ef6fb609e98a7823a419601e5f09800\"}'1 × SHOW FULL COLUMNS
FROM `tbw0l_content1 × UPDATE tbw0l_content
SET `hits` = (`hits` + 1)
