{"id":76658,"date":"2024-10-16T08:44:15","date_gmt":"2024-10-16T00:44:15","guid":{"rendered":"https:\/\/server.hk\/cnblog\/76658\/"},"modified":"2024-10-16T08:44:15","modified_gmt":"2024-10-16T00:44:15","slug":"mysql%e6%95%b8%e6%93%9a%e5%ba%ab%e5%84%aa%e5%8c%96%e6%94%bb%e7%95%a5%ef%bc%9a%e6%95%b4%e7%90%86%e6%8a%80%e5%b7%a7%e5%a4%a7%e6%8f%ad%e7%a7%98%ef%bc%81-mysql%e6%95%b8%e6%93%9a%e5%ba%ab%e6%95%b4","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/76658\/","title":{"rendered":"MySQL\u6578\u64da\u5eab\u512a\u5316\u653b\u7565\uff1a\u6574\u7406\u6280\u5de7\u5927\u63ed\u79d8\uff01 (MySQL\u6578\u64da\u5eab\u6574\u7406)"},"content":{"rendered":"<h1 id=\"mysql%e6%95%b8%e6%93%9a%e5%ba%ab%e5%84%aa%e5%8c%96%e6%94%bb%e7%95%a5%ef%bc%9a%e6%95%b4%e7%90%86%e6%8a%80%e5%b7%a7%e5%a4%a7%e6%8f%ad%e7%a7%98%ef%bc%81-ASxOcWaVKc\">MySQL\u6578\u64da\u5eab\u512a\u5316\u653b\u7565\uff1a\u6574\u7406\u6280\u5de7\u5927\u63ed\u79d8\uff01<\/h1>\n<p>\u5728\u7576\u4eca\u6578\u64da\u9a45\u52d5\u7684\u4e16\u754c\u4e2d\uff0cMySQL\u4f5c\u70ba\u4e00\u500b\u6d41\u884c\u7684\u958b\u6e90\u6578\u64da\u5eab\u7ba1\u7406\u7cfb\u7d71\uff0c\u5ee3\u6cdb\u61c9\u7528\u65bc\u5404\u7a2e\u61c9\u7528\u7a0b\u5e8f\u4e2d\u3002\u96a8\u8457\u6578\u64da\u91cf\u7684\u589e\u9577\uff0c\u6578\u64da\u5eab\u7684\u6027\u80fd\u512a\u5316\u8b8a\u5f97\u5c24\u70ba\u91cd\u8981\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u4e00\u4e9b\u6709\u6548\u7684MySQL\u6578\u64da\u5eab\u6574\u7406\u6280\u5de7\uff0c\u5e6b\u52a9\u7528\u6236\u63d0\u5347\u6578\u64da\u5eab\u7684\u6027\u80fd\u548c\u6548\u7387\u3002<\/p>\n<h2 id=\"1-%e5%ae%9a%e6%9c%9f%e9%80%b2%e8%a1%8c%e6%95%b8%e6%93%9a%e5%ba%ab%e7%b6%ad%e8%ad%b7-ASxOcWaVKc\">1. \u5b9a\u671f\u9032\u884c\u6578\u64da\u5eab\u7dad\u8b77<\/h2>\n<p>\u5b9a\u671f\u7dad\u8b77\u662f\u78ba\u4fddMySQL\u6578\u64da\u5eab\u9ad8\u6548\u904b\u884c\u7684\u95dc\u9375\u3002\u9019\u5305\u62ec\uff1a<\/p>\n<ul>\n<li><strong>\u6e05\u7406\u4e0d\u5fc5\u8981\u7684\u6578\u64da\uff1a<\/strong>\u5b9a\u671f\u522a\u9664\u904e\u671f\u6216\u4e0d\u518d\u4f7f\u7528\u7684\u6578\u64da\uff0c\u6e1b\u5c11\u6578\u64da\u5eab\u7684\u8ca0\u64d4\u3002<\/li>\n<li><strong>\u91cd\u5efa\u7d22\u5f15\uff1a<\/strong>\u96a8\u8457\u6578\u64da\u7684\u589e\u9577\uff0c\u7d22\u5f15\u53ef\u80fd\u6703\u8b8a\u5f97\u4e0d\u5920\u9ad8\u6548\u3002\u4f7f\u7528 <code>OPTIMIZE TABLE<\/code> \u547d\u4ee4\u4f86\u91cd\u5efa\u7d22\u5f15\uff0c\u63d0\u5347\u67e5\u8a62\u6027\u80fd\u3002<\/li>\n<li><strong>\u66f4\u65b0\u7d71\u8a08\u4fe1\u606f\uff1a<\/strong>\u4f7f\u7528 <code>ANALYZE TABLE<\/code> \u547d\u4ee4\u66f4\u65b0\u8868\u7684\u7d71\u8a08\u4fe1\u606f\uff0c\u5e6b\u52a9\u67e5\u8a62\u512a\u5316\u5668\u505a\u51fa\u66f4\u597d\u7684\u6c7a\u7b56\u3002<\/li>\n<\/ul>\n<h2 id=\"2-%e4%bd%bf%e7%94%a8%e5%90%88%e9%81%a9%e7%9a%84%e6%95%b8%e6%93%9a%e9%a1%9e%e5%9e%8b-ASxOcWaVKc\">2. \u4f7f\u7528\u5408\u9069\u7684\u6578\u64da\u985e\u578b<\/h2>\n<p>\u9078\u64c7\u5408\u9069\u7684\u6578\u64da\u985e\u578b\u53ef\u4ee5\u986f\u8457\u63d0\u9ad8\u6578\u64da\u5eab\u7684\u6027\u80fd\u3002\u4f8b\u5982\uff1a<\/p>\n<ul>\n<li>\u5c0d\u65bc\u6574\u6578\u985e\u578b\uff0c\u4f7f\u7528 <code>TINYINT<\/code>\u3001<code>SMALLINT<\/code> \u6216 <code>MEDIUMINT<\/code> \u800c\u4e0d\u662f <code>INT<\/code>\uff0c\u4ee5\u7bc0\u7701\u5b58\u5132\u7a7a\u9593\u3002<\/li>\n<li>\u5c0d\u65bc\u5b57\u7b26\u4e32\uff0c\u4f7f\u7528 <code>VARCHAR<\/code> \u800c\u4e0d\u662f <code>CHAR<\/code>\uff0c\u56e0\u70ba <code>VARCHAR<\/code> \u53ea\u4f54\u7528\u5be6\u969b\u5b58\u5132\u7684\u7a7a\u9593\u3002<\/li>\n<\/ul>\n<h2 id=\"3-%e5%84%aa%e5%8c%96%e6%9f%a5%e8%a9%a2%e8%aa%9e%e5%8f%a5-ASxOcWaVKc\">3. \u512a\u5316\u67e5\u8a62\u8a9e\u53e5<\/h2>\n<p>\u67e5\u8a62\u8a9e\u53e5\u7684\u512a\u5316\u5c0d\u65bc\u63d0\u5347\u6578\u64da\u5eab\u6027\u80fd\u81f3\u95dc\u91cd\u8981\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u512a\u5316\u5efa\u8b70\uff1a<\/p>\n<ul>\n<li><strong>\u907f\u514d\u4f7f\u7528 SELECT *\uff1a<\/strong>\u660e\u78ba\u6307\u5b9a\u9700\u8981\u7684\u5217\uff0c\u6e1b\u5c11\u4e0d\u5fc5\u8981\u7684\u6578\u64da\u50b3\u8f38\u3002<\/li>\n<li><strong>\u4f7f\u7528\u7d22\u5f15\uff1a<\/strong>\u78ba\u4fdd\u67e5\u8a62\u4e2d\u4f7f\u7528\u7684\u5217\u6709\u9069\u7576\u7684\u7d22\u5f15\uff0c\u4ee5\u52a0\u5feb\u67e5\u8a62\u901f\u5ea6\u3002<\/li>\n<li><strong>\u907f\u514d\u5b50\u67e5\u8a62\uff1a<\/strong>\u5728\u53ef\u80fd\u7684\u60c5\u6cc1\u4e0b\uff0c\u4f7f\u7528\u806f\u63a5\uff08JOIN\uff09\u4ee3\u66ff\u5b50\u67e5\u8a62\uff0c\u901a\u5e38\u80fd\u7372\u5f97\u66f4\u597d\u7684\u6027\u80fd\u3002<\/li>\n<\/ul>\n<h2 id=\"4-%e9%85%8d%e7%bd%aemysql%e5%8f%83%e6%95%b8-ASxOcWaVKc\">4. \u914d\u7f6eMySQL\u53c3\u6578<\/h2>\n<p>\u6839\u64da\u61c9\u7528\u9700\u6c42\u8abf\u6574MySQL\u7684\u914d\u7f6e\u53c3\u6578\uff0c\u53ef\u4ee5\u986f\u8457\u63d0\u9ad8\u6027\u80fd\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u898b\u7684\u53c3\u6578\uff1a<\/p>\n<ul>\n<li><strong>innodb_buffer_pool_size\uff1a<\/strong>\u9019\u500b\u53c3\u6578\u6c7a\u5b9a\u4e86InnoDB\u5b58\u5132\u5f15\u64ce\u7528\u65bc\u7de9\u5b58\u6578\u64da\u548c\u7d22\u5f15\u7684\u5167\u5b58\u5927\u5c0f\u3002\u901a\u5e38\u5efa\u8b70\u8a2d\u7f6e\u70ba\u53ef\u7528\u5167\u5b58\u768470%-80%\u3002<\/li>\n<li><strong>query_cache_size\uff1a<\/strong>\u67e5\u8a62\u7de9\u5b58\u53ef\u4ee5\u52a0\u901f\u91cd\u8907\u67e5\u8a62\u7684\u901f\u5ea6\uff0c\u4f46\u5728\u9ad8\u5beb\u5165\u8ca0\u8f09\u7684\u60c5\u6cc1\u4e0b\uff0c\u53ef\u80fd\u6703\u5c0e\u81f4\u6027\u80fd\u4e0b\u964d\u3002\u6839\u64da\u5be6\u969b\u60c5\u6cc1\u8abf\u6574\u3002<\/li>\n<\/ul>\n<h2 id=\"5-%e7%9b%a3%e6%8e%a7%e5%92%8c%e5%88%86%e6%9e%90%e6%80%a7%e8%83%bd-ASxOcWaVKc\">5. \u76e3\u63a7\u548c\u5206\u6790\u6027\u80fd<\/h2>\n<p>\u4f7f\u7528\u6027\u80fd\u76e3\u63a7\u5de5\u5177\u4f86\u5206\u6790\u6578\u64da\u5eab\u7684\u904b\u884c\u72c0\u6cc1\uff0c\u53ca\u6642\u767c\u73fe\u74f6\u9838\u3002\u4f8b\u5982\uff1a<\/p>\n<ul>\n<li><strong>MySQL\u6162\u67e5\u8a62\u65e5\u8a8c\uff1a<\/strong>\u555f\u7528\u6162\u67e5\u8a62\u65e5\u8a8c\uff0c\u8a18\u9304\u57f7\u884c\u6642\u9593\u8d85\u904e\u6307\u5b9a\u6642\u9593\u7684\u67e5\u8a62\uff0c\u5e6b\u52a9\u8b58\u5225\u6027\u80fd\u554f\u984c\u3002<\/li>\n<li><strong>\u4f7f\u7528EXPLAIN\u547d\u4ee4\uff1a<\/strong>\u5728\u67e5\u8a62\u524d\u52a0\u4e0a <code>EXPLAIN<\/code>\uff0c\u53ef\u4ee5\u67e5\u770b\u67e5\u8a62\u7684\u57f7\u884c\u8a08\u5283\uff0c\u5e6b\u52a9\u512a\u5316\u67e5\u8a62\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-ASxOcWaVKc\">\u7e3d\u7d50<\/h2>\n<p>\u901a\u904e\u5b9a\u671f\u7dad\u8b77\u3001\u9078\u64c7\u5408\u9069\u7684\u6578\u64da\u985e\u578b\u3001\u512a\u5316\u67e5\u8a62\u8a9e\u53e5\u3001\u8abf\u6574MySQL\u914d\u7f6e\u53c3\u6578\u4ee5\u53ca\u76e3\u63a7\u6027\u80fd\uff0c\u60a8\u53ef\u4ee5\u986f\u8457\u63d0\u5347MySQL\u6578\u64da\u5eab\u7684\u6027\u80fd\u3002\u9019\u4e9b\u6280\u5de7\u4e0d\u50c5\u80fd\u5e6b\u52a9\u60a8\u66f4\u6709\u6548\u5730\u7ba1\u7406\u6578\u64da\uff0c\u9084\u80fd\u63d0\u9ad8\u61c9\u7528\u7a0b\u5e8f\u7684\u6574\u9ad4\u6548\u7387\u3002\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u9ad8\u6548\u7684 <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u89e3\u6c7a\u65b9\u6848\uff0cServer.HK \u63d0\u4f9b\u591a\u7a2e\u9078\u64c7\uff0c\u6eff\u8db3\u60a8\u7684\u9700\u6c42\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22MySQL\u6578\u64da\u5eab\u512a\u5316\u7684\u6280\u5de7\u8207\u7b56\u7565\uff0c\u63d0\u5347\u6027\u80fd\u8207\u6548\u7387\uff0c\u8b93\u6578\u64da\u7ba1\u7406\u66f4\u8f15\u9b06\uff01<\/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-76658","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/76658","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=76658"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/76658\/revisions"}],"predecessor-version":[{"id":76659,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/76658\/revisions\/76659"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=76658"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=76658"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=76658"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}