{"id":76546,"date":"2024-10-16T07:39:15","date_gmt":"2024-10-15T23:39:15","guid":{"rendered":"https:\/\/server.hk\/cnblog\/76546\/"},"modified":"2024-10-16T07:39:15","modified_gmt":"2024-10-15T23:39:15","slug":"mysql%e6%95%b8%e6%93%9a%e5%ba%ab%e7%a9%ba%e9%96%93%e7%ae%a1%e7%90%86%e6%8a%80%e5%b7%a7-%e5%a6%82%e4%bd%95%e7%9c%8bmysql%e6%95%b8%e6%93%9a%e5%ba%ab%e7%a9%ba%e9%96%93","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/76546\/","title":{"rendered":"MySQL\u6578\u64da\u5eab\u7a7a\u9593\u7ba1\u7406\u6280\u5de7 (\u5982\u4f55\u770bMySQL\u6578\u64da\u5eab\u7a7a\u9593)"},"content":{"rendered":"<h1 id=\"mysql%e6%95%b8%e6%93%9a%e5%ba%ab%e7%a9%ba%e9%96%93%e7%ae%a1%e7%90%86%e6%8a%80%e5%b7%a7-%e5%a6%82%e4%bd%95%e7%9c%8bmysql%e6%95%b8%e6%93%9a%e5%ba%ab%e7%a9%ba%e9%96%93-GJRZyKRZBl\">MySQL\u6578\u64da\u5eab\u7a7a\u9593\u7ba1\u7406\u6280\u5de7 (\u5982\u4f55\u770bMySQL\u6578\u64da\u5eab\u7a7a\u9593)<\/h1>\n<p>\u5728\u7576\u4eca\u6578\u64da\u9a45\u52d5\u7684\u4e16\u754c\u4e2d\uff0cMySQL\u4f5c\u70ba\u4e00\u7a2e\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\u5982\u4f55\u6709\u6548\u7ba1\u7406MySQL\u6578\u64da\u5eab\u7684\u7a7a\u9593\u6210\u70ba\u4e86\u6bcf\u4f4d\u958b\u767c\u8005\u548c\u7cfb\u7d71\u7ba1\u7406\u54e1\u5fc5\u9808\u9762\u5c0d\u7684\u6311\u6230\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u4e00\u4e9b\u6709\u6548\u7684MySQL\u6578\u64da\u5eab\u7a7a\u9593\u7ba1\u7406\u6280\u5de7\uff0c\u5e6b\u52a9\u60a8\u66f4\u597d\u5730\u7406\u89e3\u548c\u7ba1\u7406\u6578\u64da\u5eab\u7684\u7a7a\u9593\u4f7f\u7528\u60c5\u6cc1\u3002<\/p>\n<h2 id=\"1-%e6%aa%a2%e6%9f%a5%e6%95%b8%e6%93%9a%e5%ba%ab%e7%a9%ba%e9%96%93%e4%bd%bf%e7%94%a8%e6%83%85%e6%b3%81-GJRZyKRZBl\">1. \u6aa2\u67e5\u6578\u64da\u5eab\u7a7a\u9593\u4f7f\u7528\u60c5\u6cc1<\/h2>\n<p>\u9996\u5148\uff0c\u4e86\u89e3\u6578\u64da\u5eab\u7684\u7a7a\u9593\u4f7f\u7528\u60c5\u6cc1\u662f\u7ba1\u7406\u7684\u7b2c\u4e00\u6b65\u3002\u60a8\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0bSQL\u67e5\u8a62\u4f86\u6aa2\u67e5\u6bcf\u500b\u6578\u64da\u5eab\u7684\u5927\u5c0f\uff1a<\/p>\n<pre><code>SELECT table_schema AS 'Database',\n       SUM(data_length + index_length) \/ 1024 \/ 1024 AS 'Size (MB)'\nFROM information_schema.TABLES\nGROUP BY table_schema;<\/code><\/pre>\n<p>\u9019\u500b\u67e5\u8a62\u5c07\u8fd4\u56de\u6bcf\u500b\u6578\u64da\u5eab\u7684\u5927\u5c0f\uff0c\u5e6b\u52a9\u60a8\u8b58\u5225\u54ea\u4e9b\u6578\u64da\u5eab\u4f54\u7528\u4e86\u6700\u591a\u7684\u7a7a\u9593\u3002<\/p>\n<h2 id=\"2-%e5%84%aa%e5%8c%96%e6%95%b8%e6%93%9a%e8%a1%a8-GJRZyKRZBl\">2. \u512a\u5316\u6578\u64da\u8868<\/h2>\n<p>\u96a8\u8457\u6642\u9593\u7684\u63a8\u79fb\uff0c\u6578\u64da\u8868\u53ef\u80fd\u6703\u8b8a\u5f97\u81c3\u816b\uff0c\u5f71\u97ff\u6027\u80fd\u548c\u7a7a\u9593\u4f7f\u7528\u3002\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u4f86\u512a\u5316\u6578\u64da\u8868\uff1a<\/p>\n<pre><code>OPTIMIZE TABLE your_table_name;<\/code><\/pre>\n<p>\u9019\u500b\u547d\u4ee4\u5c07\u91cd\u5efa\u8868\u4e26\u56de\u6536\u672a\u4f7f\u7528\u7684\u7a7a\u9593\uff0c\u5f9e\u800c\u63d0\u9ad8\u6027\u80fd\u3002<\/p>\n<h2 id=\"3-%e5%88%aa%e9%99%a4%e4%b8%8d%e5%bf%85%e8%a6%81%e7%9a%84%e6%95%b8%e6%93%9a-GJRZyKRZBl\">3. \u522a\u9664\u4e0d\u5fc5\u8981\u7684\u6578\u64da<\/h2>\n<p>\u5b9a\u671f\u6aa2\u67e5\u4e26\u522a\u9664\u4e0d\u518d\u9700\u8981\u7684\u6578\u64da\u662f\u7ba1\u7406\u6578\u64da\u5eab\u7a7a\u9593\u7684\u91cd\u8981\u6b65\u9a5f\u3002\u60a8\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0bSQL\u67e5\u8a62\u4f86\u522a\u9664\u904e\u671f\u7684\u6578\u64da\uff1a<\/p>\n<pre><code>DELETE FROM your_table_name WHERE your_condition;<\/code><\/pre>\n<p>\u78ba\u4fdd\u5728\u522a\u9664\u6578\u64da\u4e4b\u524d\u5099\u4efd\u6578\u64da\u5eab\uff0c\u4ee5\u9632\u6b62\u610f\u5916\u4e1f\u5931\u91cd\u8981\u4fe1\u606f\u3002<\/p>\n<h2 id=\"4-%e4%bd%bf%e7%94%a8%e5%88%86%e5%8d%80%e6%8a%80%e8%a1%93-GJRZyKRZBl\">4. \u4f7f\u7528\u5206\u5340\u6280\u8853<\/h2>\n<p>\u5c0d\u65bc\u5927\u578b\u6578\u64da\u8868\uff0c\u8003\u616e\u4f7f\u7528\u5206\u5340\u6280\u8853\u3002\u5206\u5340\u53ef\u4ee5\u5c07\u6578\u64da\u8868\u5206\u6210\u66f4\u5c0f\u7684\u90e8\u5206\uff0c\u5f9e\u800c\u63d0\u9ad8\u67e5\u8a62\u6027\u80fd\u548c\u7ba1\u7406\u6548\u7387\u3002\u4ee5\u4e0b\u662f\u5275\u5efa\u5206\u5340\u8868\u7684\u57fa\u672c\u8a9e\u6cd5\uff1a<\/p>\n<pre><code>CREATE TABLE your_table_name (\n    id INT,\n    data VARCHAR(100),\n    ...\n) PARTITION BY RANGE (YEAR(date_column)) (\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-%e5%ae%9a%e6%9c%9f%e5%82%99%e4%bb%bd%e5%92%8c%e6%b8%85%e7%90%86-GJRZyKRZBl\">5. \u5b9a\u671f\u5099\u4efd\u548c\u6e05\u7406<\/h2>\n<p>\u5b9a\u671f\u5099\u4efd\u6578\u64da\u5eab\u4e0d\u50c5\u53ef\u4ee5\u4fdd\u8b77\u6578\u64da\uff0c\u9084\u53ef\u4ee5\u5e6b\u52a9\u60a8\u8b58\u5225\u4e0d\u5fc5\u8981\u7684\u6578\u64da\u3002\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u9032\u884c\u5099\u4efd\uff1a<\/p>\n<pre><code>mysqldump -u username -p database_name &gt; backup_file.sql<\/code><\/pre>\n<p>\u5728\u5099\u4efd\u5f8c\uff0c\u60a8\u53ef\u4ee5\u6839\u64da\u9700\u8981\u6e05\u7406\u6578\u64da\u5eab\uff0c\u522a\u9664\u4e0d\u5fc5\u8981\u7684\u5099\u4efd\u6587\u4ef6\u4ee5\u91cb\u653e\u7a7a\u9593\u3002<\/p>\n<h2 id=\"6-%e7%9b%a3%e6%8e%a7%e6%95%b8%e6%93%9a%e5%ba%ab%e6%80%a7%e8%83%bd-GJRZyKRZBl\">6. \u76e3\u63a7\u6578\u64da\u5eab\u6027\u80fd<\/h2>\n<p>\u4f7f\u7528\u6027\u80fd\u76e3\u63a7\u5de5\u5177\u4f86\u8ddf\u8e2a\u6578\u64da\u5eab\u7684\u6027\u80fd\u548c\u7a7a\u9593\u4f7f\u7528\u60c5\u6cc1\u3002MySQL\u63d0\u4f9b\u4e86\u591a\u7a2e\u5de5\u5177\uff0c\u5982MySQL Workbench\u548cPerformance Schema\uff0c\u5e6b\u52a9\u60a8\u5206\u6790\u548c\u512a\u5316\u6578\u64da\u5eab\u6027\u80fd\u3002<\/p>\n<h2 id=\"%e7%b8%bd%e7%b5%90-GJRZyKRZBl\">\u7e3d\u7d50<\/h2>\n<p>\u6709\u6548\u7684MySQL\u6578\u64da\u5eab\u7a7a\u9593\u7ba1\u7406\u4e0d\u50c5\u80fd\u63d0\u9ad8\u6027\u80fd\uff0c\u9084\u80fd\u964d\u4f4e\u904b\u884c\u6210\u672c\u3002\u901a\u904e\u5b9a\u671f\u6aa2\u67e5\u6578\u64da\u5eab\u7a7a\u9593\u3001\u512a\u5316\u6578\u64da\u8868\u3001\u522a\u9664\u4e0d\u5fc5\u8981\u7684\u6578\u64da\u3001\u4f7f\u7528\u5206\u5340\u6280\u8853\u3001\u5b9a\u671f\u5099\u4efd\u548c\u6e05\u7406\u4ee5\u53ca\u76e3\u63a7\u6027\u80fd\uff0c\u60a8\u53ef\u4ee5\u78ba\u4fdd\u6578\u64da\u5eab\u7684\u9ad8\u6548\u904b\u884c\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>\u638c\u63e1MySQL\u6578\u64da\u5eab\u7a7a\u9593\u7ba1\u7406\u6280\u5de7\uff0c\u5b78\u7fd2\u5982\u4f55\u67e5\u770b\u548c\u512a\u5316\u6578\u64da\u5eab\u7a7a\u9593\u4f7f\u7528\uff0c\u63d0\u5347\u6027\u80fd\u8207\u6548\u7387\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-76546","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/76546","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=76546"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/76546\/revisions"}],"predecessor-version":[{"id":76547,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/76546\/revisions\/76547"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=76546"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=76546"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=76546"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}