{"id":76632,"date":"2024-10-16T08:30:19","date_gmt":"2024-10-16T00:30:19","guid":{"rendered":"https:\/\/server.hk\/cnblog\/76632\/"},"modified":"2024-10-16T08:30:19","modified_gmt":"2024-10-16T00:30:19","slug":"mysql%e6%95%b8%e6%93%9a%e5%ba%ab%e6%80%a7%e8%83%bd%e5%84%aa%e5%8c%96%e7%9a%84%e5%af%a6%e9%9a%9b%e6%93%8d%e4%bd%9c%e6%96%b9%e6%a1%88","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/76632\/","title":{"rendered":"MySQL\u6578\u64da\u5eab\u6027\u80fd\u512a\u5316\u7684\u5be6\u969b\u64cd\u4f5c\u65b9\u6848"},"content":{"rendered":"<h1 id=\"mysql%e6%95%b8%e6%93%9a%e5%ba%ab%e6%80%a7%e8%83%bd%e5%84%aa%e5%8c%96%e7%9a%84%e5%af%a6%e9%9a%9b%e6%93%8d%e4%bd%9c%e6%96%b9%e6%a1%88-HJvCyLhNqV\">MySQL\u6578\u64da\u5eab\u6027\u80fd\u512a\u5316\u7684\u5be6\u969b\u64cd\u4f5c\u65b9\u6848<\/h1>\n<p>\u5728\u7576\u4eca\u6578\u64da\u9a45\u52d5\u7684\u4e16\u754c\u4e2d\uff0c\u6578\u64da\u5eab\u7684\u6027\u80fd\u5c0d\u65bc\u61c9\u7528\u7a0b\u5e8f\u7684\u6574\u9ad4\u6548\u7387\u81f3\u95dc\u91cd\u8981\u3002MySQL\u4f5c\u70ba\u4e00\u500b\u6d41\u884c\u7684\u958b\u6e90\u6578\u64da\u5eab\u7ba1\u7406\u7cfb\u7d71\uff0c\u5ee3\u6cdb\u61c9\u7528\u65bc\u5404\u7a2e\u7db2\u7ad9\u548c\u61c9\u7528\u7a0b\u5e8f\u4e2d\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u4e00\u4e9b\u5be6\u969b\u7684MySQL\u6578\u64da\u5eab\u6027\u80fd\u512a\u5316\u65b9\u6848\uff0c\u5e6b\u52a9\u958b\u767c\u8005\u548c\u7cfb\u7d71\u7ba1\u7406\u54e1\u63d0\u5347\u6578\u64da\u5eab\u7684\u904b\u884c\u6548\u7387\u3002<\/p>\n<h2 id=\"1-%e5%84%aa%e5%8c%96%e6%9f%a5%e8%a9%a2%e8%aa%9e%e5%8f%a5-HJvCyLhNqV\">1. \u512a\u5316\u67e5\u8a62\u8a9e\u53e5<\/h2>\n<p>\u67e5\u8a62\u8a9e\u53e5\u7684\u6548\u7387\u76f4\u63a5\u5f71\u97ff\u6578\u64da\u5eab\u7684\u6027\u80fd\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u512a\u5316\u67e5\u8a62\u7684\u5efa\u8b70\uff1a<\/p>\n<ul>\n<li><strong>\u4f7f\u7528\u7d22\u5f15\uff1a<\/strong>\u7d22\u5f15\u53ef\u4ee5\u986f\u8457\u63d0\u9ad8\u67e5\u8a62\u901f\u5ea6\u3002\u78ba\u4fdd\u5728\u7d93\u5e38\u7528\u65bc\u67e5\u8a62\u7684\u5217\u4e0a\u5275\u5efa\u7d22\u5f15\u3002\u4f8b\u5982\uff1a<\/li>\n<pre><code>CREATE INDEX idx_user_email ON users(email);<\/code><\/pre>\n<li><strong>\u907f\u514dSELECT *\uff1a<\/strong>\u53ea\u9078\u64c7\u9700\u8981\u7684\u5217\uff0c\u6e1b\u5c11\u6578\u64da\u50b3\u8f38\u91cf\u3002\u4f8b\u5982\uff1a<\/li>\n<pre><code>SELECT id, name FROM users WHERE email = 'example@example.com';<\/code><\/pre>\n<li><strong>\u4f7f\u7528JOIN\u800c\u975e\u5b50\u67e5\u8a62\uff1a<\/strong>\u5728\u67d0\u4e9b\u60c5\u6cc1\u4e0b\uff0cJOIN\u64cd\u4f5c\u6bd4\u5b50\u67e5\u8a62\u66f4\u9ad8\u6548\u3002<\/li>\n<\/ul>\n<h2 id=\"2-%e8%aa%bf%e6%95%b4%e6%95%b8%e6%93%9a%e5%ba%ab%e9%85%8d%e7%bd%ae-HJvCyLhNqV\">2. \u8abf\u6574\u6578\u64da\u5eab\u914d\u7f6e<\/h2>\n<p>MySQL\u7684\u914d\u7f6e\u53c3\u6578\u5c0d\u6027\u80fd\u6709\u8457\u91cd\u8981\u5f71\u97ff\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u95dc\u9375\u7684\u914d\u7f6e\u5efa\u8b70\uff1a<\/p>\n<ul>\n<li><strong>\u8abf\u6574\u7de9\u885d\u6c60\u5927\u5c0f\uff1a<\/strong>InnoDB\u7684\u7de9\u885d\u6c60\u5927\u5c0f\u61c9\u6839\u64da\u53ef\u7528\u5167\u5b58\u9032\u884c\u8abf\u6574\u3002\u53ef\u4ee5\u901a\u904e\u4ee5\u4e0b\u547d\u4ee4\u8a2d\u7f6e\uff1a<\/li>\n<pre><code>SET GLOBAL innodb_buffer_pool_size = 2 * 1024 * 1024 * 1024; -- \u8a2d\u7f6e\u70ba2GB<\/code><\/pre>\n<li><strong>\u8abf\u6574\u67e5\u8a62\u7de9\u5b58\uff1a<\/strong>\u6839\u64da\u61c9\u7528\u7684\u7279\u6027\uff0c\u9069\u7576\u8abf\u6574\u67e5\u8a62\u7de9\u5b58\u7684\u5927\u5c0f\u548c\u958b\u555f\u72c0\u614b\u3002<\/li>\n<li><strong>\u8a2d\u7f6e\u9023\u63a5\u6578\u91cf\uff1a<\/strong>\u6839\u64da\u61c9\u7528\u7684\u9700\u6c42\uff0c\u8abf\u6574\u6700\u5927\u9023\u63a5\u6578\u91cf\uff0c\u4ee5\u907f\u514d\u904e\u591a\u7684\u9023\u63a5\u5c0e\u81f4\u6027\u80fd\u4e0b\u964d\u3002<\/li>\n<\/ul>\n<h2 id=\"3-%e5%ae%9a%e6%9c%9f%e7%b6%ad%e8%ad%b7%e6%95%b8%e6%93%9a%e5%ba%ab-HJvCyLhNqV\">3. \u5b9a\u671f\u7dad\u8b77\u6578\u64da\u5eab<\/h2>\n<p>\u5b9a\u671f\u7684\u6578\u64da\u5eab\u7dad\u8b77\u53ef\u4ee5\u9632\u6b62\u6027\u80fd\u4e0b\u964d\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u7dad\u8b77\u5efa\u8b70\uff1a<\/p>\n<ul>\n<li><strong>\u57f7\u884cANALYZE TABLE\uff1a<\/strong>\u9019\u53ef\u4ee5\u5e6b\u52a9MySQL\u66f4\u65b0\u8868\u7684\u7d71\u8a08\u4fe1\u606f\uff0c\u5f9e\u800c\u512a\u5316\u67e5\u8a62\u8a08\u5283\u3002<\/li>\n<pre><code>ANALYZE TABLE users;<\/code><\/pre>\n<li><strong>\u57f7\u884cOPTIMIZE TABLE\uff1a<\/strong>\u9019\u53ef\u4ee5\u56de\u6536\u7a7a\u9593\u4e26\u63d0\u9ad8\u8868\u7684\u6027\u80fd\u3002<\/li>\n<pre><code>OPTIMIZE TABLE users;<\/code><\/pre>\n<li><strong>\u5b9a\u671f\u5099\u4efd\uff1a<\/strong>\u78ba\u4fdd\u6578\u64da\u7684\u5b89\u5168\u6027\uff0c\u4e26\u5728\u5fc5\u8981\u6642\u80fd\u5920\u5feb\u901f\u6062\u5fa9\u3002<\/li>\n<\/ul>\n<h2 id=\"4-%e4%bd%bf%e7%94%a8%e5%88%86%e5%8d%80%e6%8a%80%e8%a1%93-HJvCyLhNqV\">4. \u4f7f\u7528\u5206\u5340\u6280\u8853<\/h2>\n<p>\u5c0d\u65bc\u5927\u578b\u6578\u64da\u8868\uff0c\u4f7f\u7528\u5206\u5340\u6280\u8853\u53ef\u4ee5\u63d0\u9ad8\u67e5\u8a62\u6027\u80fd\u3002\u5206\u5340\u53ef\u4ee5\u6839\u64da\u67d0\u4e9b\u5217\u7684\u503c\u5c07\u6578\u64da\u5206\u6563\u5230\u4e0d\u540c\u7684\u7269\u7406\u5340\u57df\u3002\u4f8b\u5982\uff1a<\/p>\n<pre><code>CREATE TABLE orders (\n    id INT,\n    order_date DATE,\n    ...\n) PARTITION BY RANGE (YEAR(order_date)) (\n    PARTITION p0 VALUES LESS THAN (2020),\n    PARTITION p1 VALUES LESS THAN (2021),\n    PARTITION p2 VALUES LESS THAN (2022)\n);<\/code><\/pre>\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-HJvCyLhNqV\">5. \u76e3\u63a7\u548c\u5206\u6790\u6027\u80fd<\/h2>\n<p>\u4f7f\u7528\u6027\u80fd\u76e3\u63a7\u5de5\u5177\u53ef\u4ee5\u5e6b\u52a9\u8b58\u5225\u74f6\u9838\u3002MySQL\u63d0\u4f9b\u4e86\u591a\u7a2e\u5de5\u5177\uff0c\u5982\u6162\u67e5\u8a62\u65e5\u8a8c\u548c\u6027\u80fd\u6a21\u5f0f\uff0c\u5e6b\u52a9\u958b\u767c\u8005\u5206\u6790\u67e5\u8a62\u6027\u80fd\u3002<\/p>\n<ul>\n<li><strong>\u555f\u7528\u6162\u67e5\u8a62\u65e5\u8a8c\uff1a<\/strong>\u9019\u53ef\u4ee5\u5e6b\u52a9\u8b58\u5225\u57f7\u884c\u6642\u9593\u904e\u9577\u7684\u67e5\u8a62\u3002<\/li>\n<pre><code>SET GLOBAL slow_query_log = 'ON';<\/code><\/pre>\n<li><strong>\u4f7f\u7528EXPLAIN\u547d\u4ee4\uff1a<\/strong>\u5206\u6790\u67e5\u8a62\u7684\u57f7\u884c\u8a08\u5283\uff0c\u627e\u51fa\u6f5b\u5728\u7684\u6027\u80fd\u554f\u984c\u3002<\/li>\n<pre><code>EXPLAIN SELECT * FROM users WHERE email = 'example@example.com';<\/code><\/pre>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-HJvCyLhNqV\">\u7e3d\u7d50<\/h2>\n<p>MySQL\u6578\u64da\u5eab\u6027\u80fd\u512a\u5316\u662f\u4e00\u500b\u6301\u7e8c\u7684\u904e\u7a0b\uff0c\u6d89\u53ca\u67e5\u8a62\u512a\u5316\u3001\u914d\u7f6e\u8abf\u6574\u3001\u5b9a\u671f\u7dad\u8b77\u3001\u5206\u5340\u6280\u8853\u7684\u4f7f\u7528\u4ee5\u53ca\u6027\u80fd\u76e3\u63a7\u7b49\u591a\u65b9\u9762\u7684\u5de5\u4f5c\u3002\u901a\u904e\u5be6\u65bd\u4e0a\u8ff0\u65b9\u6848\uff0c\u958b\u767c\u8005\u548c\u7cfb\u7d71\u7ba1\u7406\u54e1\u53ef\u4ee5\u986f\u8457\u63d0\u5347\u6578\u64da\u5eab\u7684\u6027\u80fd\uff0c\u5f9e\u800c\u63d0\u9ad8\u61c9\u7528\u7a0b\u5e8f\u7684\u6574\u9ad4\u6548\u7387\u3002\u5982\u679c\u60a8\u9700\u8981\u9032\u4e00\u6b65\u7684\u652f\u6301\u6216\u89e3\u6c7a\u65b9\u6848\uff0c\u8acb\u8003\u616e\u6211\u5011\u7684<a href=\"https:\/\/server.hk\">VPS<\/a> \u670d\u52d9\uff0c\u70ba\u60a8\u7684\u6578\u64da\u5eab\u63d0\u4f9b\u7a69\u5b9a\u7684\u904b\u884c\u74b0\u5883\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22MySQL\u6578\u64da\u5eab\u6027\u80fd\u512a\u5316\u7684\u5be6\u969b\u64cd\u4f5c\u65b9\u6848\uff0c\u63d0\u5347\u67e5\u8a62\u6548\u7387\uff0c\u6e1b\u5c11\u5ef6\u9072\uff0c\u78ba\u4fdd\u7cfb\u7d71\u7a69\u5b9a\u904b\u884c\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-76632","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/76632","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=76632"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/76632\/revisions"}],"predecessor-version":[{"id":76633,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/76632\/revisions\/76633"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=76632"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=76632"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=76632"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}