{"id":777,"date":"2025-12-19T09:42:58","date_gmt":"2025-12-19T08:42:58","guid":{"rendered":"https:\/\/mybox.com\/help\/?post_type=manual_kb&#038;p=777"},"modified":"2026-06-02T10:13:14","modified_gmt":"2026-06-02T08:13:14","slug":"mysql-database-optimization-and-repair","status":"publish","type":"manual_kb","link":"https:\/\/mybox.com\/help\/en\/knowledgebase\/mysql-database-optimization-and-repair\/","title":{"rendered":"MySQL database optimization and repair"},"content":{"rendered":"\n<div class=\"translation-block translation-block-merged\">\n<p class=\"wp-block-paragraph\">If you suspect that your website&#8217;s database tables are fragmented, inefficient, or damaged, you can use the optimization and repair tools available in phpMyAdmin.<\/p>\n\n\n\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_86 ez-toc-wrap-left counter-hierarchy ez-toc-counter ez-toc-custom ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/mybox.com\/help\/en\/knowledgebase\/mysql-database-optimization-and-repair\/#Optimizing_or_Repairing_Database_Tables\" >Optimizing or Repairing Database Tables<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/mybox.com\/help\/en\/knowledgebase\/mysql-database-optimization-and-repair\/#When_to_Optimize_Tables\" >When to Optimize Tables<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/mybox.com\/help\/en\/knowledgebase\/mysql-database-optimization-and-repair\/#When_to_Repair_Tables\" >When to Repair Tables<\/a><\/li><\/ul><\/nav><\/div>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Optimizing_or_Repairing_Database_Tables\"><\/span>Optimizing or Repairing Database Tables<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<ol start=\"1\" class=\"wp-block-list\">\n<li>Log in to the phpMyAdmin panel.<\/li>\n\n\n\n<li>Select the database you want to manage from the list on the left-hand side.<\/li>\n\n\n\n<li>Once the database structure is displayed, scroll to the bottom of the table list.<\/li>\n\n\n\n<li>Click <strong>Check All<\/strong> to select all tables in the database.<\/li>\n\n\n\n<li>From the <strong>With selected<\/strong> drop-down menu, choose one of the following options:\n<ul class=\"wp-block-list\">\n<li><strong>Optimize table<\/strong> \u2013 Improves table performance and reclaims unused storage space.<\/li>\n\n\n\n<li><strong>Repair table<\/strong> \u2013 Attempts to fix corrupted tables and restore their functionality.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li>Confirm the operation if prompted.<\/li>\n<\/ol>\n\n\n\n<\/div>\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"710\" height=\"478\" src=\"https:\/\/mybox.com\/help\/wp-content\/uploads\/2025\/12\/image-325.png\" alt=\"\" class=\"wp-image-4700\" srcset=\"https:\/\/mybox.com\/help\/wp-content\/uploads\/2025\/12\/image-325.png 710w, https:\/\/mybox.com\/help\/wp-content\/uploads\/2025\/12\/image-325-300x202.png 300w, https:\/\/mybox.com\/help\/wp-content\/uploads\/2025\/12\/image-325-18x12.png 18w\" sizes=\"auto, (max-width: 710px) 100vw, 710px\" \/><\/figure>\n\n<div class=\"translation-block translation-block-merged\">\n\n\n\n<p class=\"wp-block-paragraph\">The duration of the process depends on the number and size of the tables in the database. Small databases may complete within a few seconds, while larger databases can take several minutes.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"When_to_Optimize_Tables\"><\/span>When to Optimize Tables<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<\/div>\n\n<div id=\"mybox-4262971319\" class=\"mybox-content mybox-entity-placement\"><div class=\"early-access-banner-inpost\">\r\n  <div class=\"banner-left-inpost\">\r\n    <div class=\"icon-box-inpost\">\r\n      <img decoding=\"async\" src=\"https:\/\/mybox.com\/help\/wp-content\/uploads\/2026\/02\/square-info-icon.svg\" alt=\"Info\">\r\n    <\/div>\r\n    <div class=\"text-box-inpost\">\r\n      <span class=\"label-inpost\"><span class=\"translation-block translation-block-banner-text\">Early access<\/span><\/span>\r\n      <h4><span class=\"translation-block translation-block-banner-text\">Still need help?<\/span><\/h4>\r\n      <p><span class=\"translation-block translation-block-banner-text\">Contact our customer service team.<\/span><\/p>\r\n    <\/div>\r\n  <\/div>\r\n\r\n  <div class=\"banner-right-inpost\">\r\n    <a href=\"https:\/\/panel.mybox.com\/helpdesk2\/v\/list\/\" class=\"banner-button-inpost\"><span class=\"translation-block translation-block-banner-text\">Message us<\/span><\/a>\r\n  <\/div>\r\n<\/div><\/div>\n\n<div class=\"translation-block translation-block-merged\"><p class=\"wp-block-paragraph\">Table optimization can be useful when:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Your website feels slower than usual.<\/li>\n\n\n\n<li>A large amount of data has recently been deleted.<\/li>\n\n\n\n<li>Database tables have become fragmented over time.<\/li>\n\n\n\n<li>You want to improve overall database performance.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"When_to_Repair_Tables\"><\/span>When to Repair Tables<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Table repair may be helpful when:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Database-related errors appear on your website.<\/li>\n\n\n\n<li>Specific tables become corrupted.<\/li>\n\n\n\n<li>Applications report issues accessing or reading data.<\/li>\n\n\n\n<li>You have restored a database from a backup and encounter table integrity problems.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Note:<\/strong> Before performing database maintenance, it is recommended to create a backup of your database to prevent accidental data loss.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n<\/div>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"template":"","format":"standard","manualknowledgebasecat":[9,25],"manual_kb_tag":[2160,588,2161,801,2162,1108,2163,2146,2164,2147,2165,2148,2166,2149,2167,2150,2168,2151,2152,2153,2154,2155,2158,2159],"class_list":["post-777","manual_kb","type-manual_kb","status-publish","format-standard","hentry","manualknowledgebasecat-databases","manualknowledgebasecat-hosting","manual_kb_tag-repair-database","manual_kb_tag-website","manual_kb_tag-mysql-tables","manual_kb_tag-mysql","manual_kb_tag-optimize-mysql-tables","manual_kb_tag-database","manual_kb_tag-repair-mysql-tables","manual_kb_tag-phpmyadmin","manual_kb_tag-website-database","manual_kb_tag-database-optimization","manual_kb_tag-database-structure","manual_kb_tag-database-repair","manual_kb_tag-table-maintenance","manual_kb_tag-optimize-tables","manual_kb_tag-select-all-tables","manual_kb_tag-repair-tables","manual_kb_tag-dropdown-list","manual_kb_tag-optimize-table","manual_kb_tag-repair-table","manual_kb_tag-mysql-database","manual_kb_tag-mysql-optimization","manual_kb_tag-table-optimization","manual_kb_tag-phpmyadmin-login","manual_kb_tag-optimize-database"],"_links":{"self":[{"href":"https:\/\/mybox.com\/help\/en\/wp-json\/wp\/v2\/manual_kb\/777","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/mybox.com\/help\/en\/wp-json\/wp\/v2\/manual_kb"}],"about":[{"href":"https:\/\/mybox.com\/help\/en\/wp-json\/wp\/v2\/types\/manual_kb"}],"author":[{"embeddable":true,"href":"https:\/\/mybox.com\/help\/en\/wp-json\/wp\/v2\/users\/1"}],"version-history":[{"count":2,"href":"https:\/\/mybox.com\/help\/en\/wp-json\/wp\/v2\/manual_kb\/777\/revisions"}],"predecessor-version":[{"id":4701,"href":"https:\/\/mybox.com\/help\/en\/wp-json\/wp\/v2\/manual_kb\/777\/revisions\/4701"}],"wp:attachment":[{"href":"https:\/\/mybox.com\/help\/en\/wp-json\/wp\/v2\/media?parent=777"}],"wp:term":[{"taxonomy":"manualknowledgebasecat","embeddable":true,"href":"https:\/\/mybox.com\/help\/en\/wp-json\/wp\/v2\/manualknowledgebasecat?post=777"},{"taxonomy":"manual_kb_tag","embeddable":true,"href":"https:\/\/mybox.com\/help\/en\/wp-json\/wp\/v2\/manual_kb_tag?post=777"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}