{"id":162247,"date":"2024-11-04T13:26:18","date_gmt":"2024-11-04T05:26:18","guid":{"rendered":"https:\/\/server.hk\/cnblog\/162247\/"},"modified":"2024-11-04T13:26:19","modified_gmt":"2024-11-04T05:26:19","slug":"%e6%aa%a2%e6%9f%a5%e8%88%87%e7%b6%ad%e8%ad%b7-mysql-%e6%95%b8%e6%93%9a%e5%ba%ab%e8%a1%a8%e7%9a%84%e6%93%8d%e4%bd%9c%e6%b5%81%e7%a8%8b","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/162247\/","title":{"rendered":"\u6aa2\u67e5\u8207\u7dad\u8b77 MySQL \u6578\u64da\u5eab\u8868\u7684\u64cd\u4f5c\u6d41\u7a0b"},"content":{"rendered":"<h1 id=\"%e6%aa%a2%e6%9f%a5%e8%88%87%e7%b6%ad%e8%ad%b7-mysql-%e6%95%b8%e6%93%9a%e5%ba%ab%e8%a1%a8%e7%9a%84%e6%93%8d%e4%bd%9c%e6%b5%81%e7%a8%8b-sneIWgLNxF\">\u6aa2\u67e5\u8207\u7dad\u8b77 MySQL \u6578\u64da\u5eab\u8868\u7684\u64cd\u4f5c\u6d41\u7a0b<\/h1>\n<p>MySQL \u662f\u4e00\u7a2e\u6d41\u884c\u7684\u958b\u6e90\u95dc\u806f\u6578\u64da\u5eab\u7ba1\u7406\u7cfb\u7d71\uff0c\u5ee3\u6cdb\u61c9\u7528\u65bc\u5404\u7a2e\u7db2\u7ad9\u548c\u61c9\u7528\u7a0b\u5e8f\u4e2d\u3002\u96a8\u8457\u6578\u64da\u91cf\u7684\u589e\u9577\uff0c\u5b9a\u671f\u6aa2\u67e5\u8207\u7dad\u8b77\u6578\u64da\u5eab\u8868\u8b8a\u5f97\u81f3\u95dc\u91cd\u8981\uff0c\u4ee5\u78ba\u4fdd\u6578\u64da\u7684\u5b8c\u6574\u6027\u548c\u6027\u80fd\u3002\u672c\u6587\u5c07\u4ecb\u7d39\u6aa2\u67e5\u8207\u7dad\u8b77 MySQL \u6578\u64da\u5eab\u8868\u7684\u64cd\u4f5c\u6d41\u7a0b\uff0c\u5305\u62ec\u5e38\u898b\u7684\u6aa2\u67e5\u5de5\u5177\u548c\u7dad\u8b77\u65b9\u6cd5\u3002<\/p>\n<h2 id=\"%e4%b8%80%e3%80%81%e6%aa%a2%e6%9f%a5%e6%95%b8%e6%93%9a%e5%ba%ab%e8%a1%a8%e7%9a%84%e5%ae%8c%e6%95%b4%e6%80%a7-sneIWgLNxF\">\u4e00\u3001\u6aa2\u67e5\u6578\u64da\u5eab\u8868\u7684\u5b8c\u6574\u6027<\/h2>\n<p>\u5728 MySQL \u4e2d\uff0c\u6aa2\u67e5\u6578\u64da\u5eab\u8868\u7684\u5b8c\u6574\u6027\u53ef\u4ee5\u901a\u904e\u4ee5\u4e0b\u5e7e\u7a2e\u65b9\u6cd5\u9032\u884c\uff1a<\/p>\n<ul>\n<li><strong>\u4f7f\u7528 CHECK TABLE \u547d\u4ee4\uff1a<\/strong>\u9019\u662f\u4e00\u500b\u5167\u5efa\u7684\u547d\u4ee4\uff0c\u53ef\u4ee5\u6aa2\u67e5\u8868\u7684\u5b8c\u6574\u6027\u548c\u72c0\u614b\u3002<\/li>\n<\/ul>\n<pre><code>CHECK TABLE your_table_name;<\/code><\/pre>\n<p>\u9019\u500b\u547d\u4ee4\u6703\u8fd4\u56de\u8868\u7684\u72c0\u614b\u4fe1\u606f\uff0c\u5305\u62ec\u662f\u5426\u5b58\u5728\u932f\u8aa4\u3002<\/p>\n<ul>\n<li><strong>\u4f7f\u7528 REPAIR TABLE \u547d\u4ee4\uff1a<\/strong>\u5982\u679c CHECK TABLE \u767c\u73fe\u932f\u8aa4\uff0c\u53ef\u4ee5\u4f7f\u7528 REPAIR TABLE \u5617\u8a66\u4fee\u5fa9\u3002<\/li>\n<\/ul>\n<pre><code>REPAIR TABLE your_table_name;<\/code><\/pre>\n<p>\u9019\u500b\u547d\u4ee4\u6703\u5617\u8a66\u4fee\u5fa9\u8868\u4e2d\u7684\u932f\u8aa4\uff0c\u4e26\u8fd4\u56de\u4fee\u5fa9\u7d50\u679c\u3002<\/p>\n<h2 id=\"%e4%ba%8c%e3%80%81%e5%84%aa%e5%8c%96%e6%95%b8%e6%93%9a%e5%ba%ab%e8%a1%a8-sneIWgLNxF\">\u4e8c\u3001\u512a\u5316\u6578\u64da\u5eab\u8868<\/h2>\n<p>\u96a8\u8457\u6578\u64da\u7684\u589e\u9577\uff0c\u6578\u64da\u5eab\u8868\u53ef\u80fd\u6703\u8b8a\u5f97\u81c3\u816b\uff0c\u5f71\u97ff\u67e5\u8a62\u6027\u80fd\u3002\u512a\u5316\u8868\u53ef\u4ee5\u91cb\u653e\u672a\u4f7f\u7528\u7684\u7a7a\u9593\u4e26\u63d0\u9ad8\u6027\u80fd\u3002\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u9032\u884c\u512a\u5316\uff1a<\/p>\n<pre><code>OPTIMIZE TABLE your_table_name;<\/code><\/pre>\n<p>\u9019\u500b\u547d\u4ee4\u6703\u91cd\u5efa\u8868\u4e26\u66f4\u65b0\u7d71\u8a08\u4fe1\u606f\uff0c\u5f9e\u800c\u63d0\u9ad8\u67e5\u8a62\u6548\u7387\u3002<\/p>\n<h2 id=\"%e4%b8%89%e3%80%81%e5%ae%9a%e6%9c%9f%e5%82%99%e4%bb%bd%e6%95%b8%e6%93%9a-sneIWgLNxF\">\u4e09\u3001\u5b9a\u671f\u5099\u4efd\u6578\u64da<\/h2>\n<p>\u6578\u64da\u7684\u5b89\u5168\u6027\u662f\u6578\u64da\u5eab\u7ba1\u7406\u4e2d\u6700\u91cd\u8981\u7684\u4e00\u74b0\u3002\u5b9a\u671f\u5099\u4efd\u6578\u64da\u53ef\u4ee5\u9632\u6b62\u6578\u64da\u4e1f\u5931\u3002\u53ef\u4ee5\u4f7f\u7528 mysqldump \u5de5\u5177\u9032\u884c\u5099\u4efd\uff1a<\/p>\n<pre><code>mysqldump -u username -p database_name &gt; backup_file.sql<\/code><\/pre>\n<p>\u9019\u500b\u547d\u4ee4\u6703\u5c07\u6307\u5b9a\u6578\u64da\u5eab\u7684\u6240\u6709\u6578\u64da\u5c0e\u51fa\u5230\u4e00\u500b SQL \u6587\u4ef6\u4e2d\uff0c\u65b9\u4fbf\u65e5\u5f8c\u6062\u5fa9\u3002<\/p>\n<h2 id=\"%e5%9b%9b%e3%80%81%e7%9b%a3%e6%8e%a7%e6%95%b8%e6%93%9a%e5%ba%ab%e6%80%a7%e8%83%bd-sneIWgLNxF\">\u56db\u3001\u76e3\u63a7\u6578\u64da\u5eab\u6027\u80fd<\/h2>\n<p>\u76e3\u63a7\u6578\u64da\u5eab\u6027\u80fd\u53ef\u4ee5\u5e6b\u52a9\u53ca\u6642\u767c\u73fe\u554f\u984c\u3002\u53ef\u4ee5\u4f7f\u7528 MySQL \u7684\u6027\u80fd\u6a21\u5f0f\uff08Performance Schema\uff09\u4f86\u6536\u96c6\u6027\u80fd\u6578\u64da\u3002\u555f\u7528\u6027\u80fd\u6a21\u5f0f\u5f8c\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u67e5\u8a62\u4f86\u6aa2\u67e5\u6162\u67e5\u8a62\uff1a<\/p>\n<pre><code>SELECT * FROM performance_schema.events_statements_summary_by_digest WHERE COUNT_STAR &gt; 100;<\/code><\/pre>\n<p>\u9019\u500b\u67e5\u8a62\u6703\u8fd4\u56de\u57f7\u884c\u6b21\u6578\u8d85\u904e 100 \u6b21\u7684\u6162\u67e5\u8a62\uff0c\u5e6b\u52a9\u7ba1\u7406\u54e1\u9032\u884c\u512a\u5316\u3002<\/p>\n<h2 id=\"%e4%ba%94%e3%80%81%e6%b8%85%e7%90%86%e4%b8%8d%e5%bf%85%e8%a6%81%e7%9a%84%e6%95%b8%e6%93%9a-sneIWgLNxF\">\u4e94\u3001\u6e05\u7406\u4e0d\u5fc5\u8981\u7684\u6578\u64da<\/h2>\n<p>\u96a8\u8457\u6642\u9593\u7684\u63a8\u79fb\uff0c\u6578\u64da\u5eab\u4e2d\u53ef\u80fd\u6703\u7a4d\u7d2f\u5927\u91cf\u4e0d\u5fc5\u8981\u7684\u6578\u64da\uff0c\u4f8b\u5982\u904e\u671f\u7684\u8a18\u9304\u6216\u81e8\u6642\u6578\u64da\u3002\u5b9a\u671f\u6e05\u7406\u9019\u4e9b\u6578\u64da\u53ef\u4ee5\u63d0\u9ad8\u6578\u64da\u5eab\u7684\u6027\u80fd\u3002\u53ef\u4ee5\u4f7f\u7528 DELETE \u547d\u4ee4\u4f86\u522a\u9664\u4e0d\u5fc5\u8981\u7684\u6578\u64da\uff1a<\/p>\n<pre><code>DELETE FROM your_table_name WHERE condition;<\/code><\/pre>\n<p>\u5728\u57f7\u884c\u522a\u9664\u64cd\u4f5c\u4e4b\u524d\uff0c\u5efa\u8b70\u5148\u9032\u884c\u5099\u4efd\uff0c\u4ee5\u9632\u6b62\u610f\u5916\u522a\u9664\u91cd\u8981\u6578\u64da\u3002<\/p>\n<h2 id=\"%e7%b8%bd%e7%b5%90-sneIWgLNxF\">\u7e3d\u7d50<\/h2>\n<p>\u5b9a\u671f\u6aa2\u67e5\u8207\u7dad\u8b77 MySQL \u6578\u64da\u5eab\u8868\u662f\u78ba\u4fdd\u6578\u64da\u5b8c\u6574\u6027\u548c\u6027\u80fd\u7684\u95dc\u9375\u6b65\u9a5f\u3002\u901a\u904e\u4f7f\u7528 CHECK TABLE\u3001OPTIMIZE TABLE\u3001\u5b9a\u671f\u5099\u4efd\u3001\u76e3\u63a7\u6027\u80fd\u548c\u6e05\u7406\u4e0d\u5fc5\u8981\u7684\u6578\u64da\u7b49\u65b9\u6cd5\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u7ba1\u7406\u6578\u64da\u5eab\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u6548\u80fd\u548c\u7a69\u5b9a\u6027\u7684\u61c9\u7528\uff0c\u9078\u64c7\u5408\u9069\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u89e3\u6c7a\u65b9\u6848\u4e5f\u662f\u81f3\u95dc\u91cd\u8981\u7684\u3002\u4e86\u89e3\u66f4\u591a\u95dc\u65bc <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u7684\u4fe1\u606f\uff0c\u8acb\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e86\u89e3\u6aa2\u67e5\u8207\u7dad\u8b77 MySQL \u6578\u64da\u5eab\u8868\u7684\u64cd\u4f5c\u6d41\u7a0b\uff0c\u78ba\u4fdd\u6578\u64da\u5b8c\u6574\u6027\u8207\u6027\u80fd\u512a\u5316\uff0c\u63d0\u5347\u7cfb\u7d71\u7a69\u5b9a\u6027\u3002<\/p>\n","protected":false},"author":0,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-162247","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/162247","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=162247"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/162247\/revisions"}],"predecessor-version":[{"id":162248,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/162247\/revisions\/162248"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=162247"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=162247"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=162247"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}