{"id":166061,"date":"2024-11-05T15:32:17","date_gmt":"2024-11-05T07:32:17","guid":{"rendered":"https:\/\/server.hk\/cnblog\/166061\/"},"modified":"2024-11-05T15:32:18","modified_gmt":"2024-11-05T07:32:18","slug":"%e5%bf%ab%e9%80%9f%e4%ba%86%e8%a7%a3%e6%95%b8%e6%93%9a%e5%ba%ab%e4%bd%bf%e7%94%a8%e6%83%85%e6%b3%81%ef%bc%9asql%e6%9f%a5%e7%9c%8b%e6%96%b9%e6%b3%95-sql-%e6%9f%a5%e7%9c%8b%e6%89%80%e6%9c%89%e6%95%b8","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/166061\/","title":{"rendered":"\u5feb\u901f\u4e86\u89e3\u6578\u64da\u5eab\u4f7f\u7528\u60c5\u6cc1\uff1aSQL\u67e5\u770b\u65b9\u6cd5 (sql \u67e5\u770b\u6240\u6709\u6578\u64da\u5eab\u4f7f\u7528\u60c5\u6cc1)"},"content":{"rendered":"<h1 id=\"%e5%bf%ab%e9%80%9f%e4%ba%86%e8%a7%a3%e6%95%b8%e6%93%9a%e5%ba%ab%e4%bd%bf%e7%94%a8%e6%83%85%e6%b3%81%ef%bc%9asql%e6%9f%a5%e7%9c%8b%e6%96%b9%e6%b3%95-KQbpMrcMWh\">\u5feb\u901f\u4e86\u89e3\u6578\u64da\u5eab\u4f7f\u7528\u60c5\u6cc1\uff1aSQL\u67e5\u770b\u65b9\u6cd5<\/h1>\n<p>\u5728\u73fe\u4eca\u7684\u6578\u64da\u9a45\u52d5\u6642\u4ee3\uff0c\u6578\u64da\u5eab\u7684\u7ba1\u7406\u548c\u76e3\u63a7\u8b8a\u5f97\u8d8a\u4f86\u8d8a\u91cd\u8981\u3002\u7121\u8ad6\u662f\u4f01\u696d\u9084\u662f\u500b\u4eba\u958b\u767c\u8005\uff0c\u4e86\u89e3\u6578\u64da\u5eab\u7684\u4f7f\u7528\u60c5\u6cc1\u90fd\u662f\u78ba\u4fdd\u7cfb\u7d71\u7a69\u5b9a\u6027\u548c\u6027\u80fd\u7684\u95dc\u9375\u3002\u672c\u6587\u5c07\u4ecb\u7d39\u5982\u4f55\u4f7f\u7528SQL\u67e5\u8a62\u4f86\u67e5\u770b\u6240\u6709\u6578\u64da\u5eab\u7684\u4f7f\u7528\u60c5\u6cc1\uff0c\u5e6b\u52a9\u60a8\u66f4\u597d\u5730\u7ba1\u7406\u60a8\u7684\u6578\u64da\u5eab\u3002<\/p>\n<h2 id=\"%e7%82%ba%e4%bb%80%e9%ba%bc%e9%9c%80%e8%a6%81%e7%9b%a3%e6%8e%a7%e6%95%b8%e6%93%9a%e5%ba%ab%e4%bd%bf%e7%94%a8%e6%83%85%e6%b3%81%ef%bc%9f-KQbpMrcMWh\">\u70ba\u4ec0\u9ebc\u9700\u8981\u76e3\u63a7\u6578\u64da\u5eab\u4f7f\u7528\u60c5\u6cc1\uff1f<\/h2>\n<p>\u76e3\u63a7\u6578\u64da\u5eab\u7684\u4f7f\u7528\u60c5\u6cc1\u53ef\u4ee5\u5e6b\u52a9\u60a8\u8b58\u5225\u6027\u80fd\u74f6\u9838\u3001\u8cc7\u6e90\u6d6a\u8cbb\u548c\u6f5b\u5728\u7684\u5b89\u5168\u554f\u984c\u3002\u901a\u904e\u5b9a\u671f\u6aa2\u67e5\u6578\u64da\u5eab\u7684\u4f7f\u7528\u60c5\u6cc1\uff0c\u60a8\u53ef\u4ee5\uff1a<\/p>\n<ul>\n<li>\u512a\u5316\u67e5\u8a62\u6027\u80fd\uff0c\u6e1b\u5c11\u97ff\u61c9\u6642\u9593\u3002<\/li>\n<li>\u78ba\u4fdd\u8cc7\u6e90\u7684\u6709\u6548\u5229\u7528\uff0c\u907f\u514d\u4e0d\u5fc5\u8981\u7684\u958b\u652f\u3002<\/li>\n<li>\u53ca\u6642\u767c\u73fe\u7570\u5e38\u884c\u70ba\uff0c\u589e\u5f37\u6578\u64da\u5b89\u5168\u6027\u3002<\/li>\n<\/ul>\n<h2 id=\"%e4%bd%bf%e7%94%a8sql%e6%9f%a5%e7%9c%8b%e6%95%b8%e6%93%9a%e5%ba%ab%e4%bd%bf%e7%94%a8%e6%83%85%e6%b3%81-KQbpMrcMWh\">\u4f7f\u7528SQL\u67e5\u770b\u6578\u64da\u5eab\u4f7f\u7528\u60c5\u6cc1<\/h2>\n<p>\u5728\u5927\u591a\u6578\u95dc\u4fc2\u578b\u6578\u64da\u5eab\u7ba1\u7406\u7cfb\u7d71\uff08RDBMS\uff09\u4e2d\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528SQL\u67e5\u8a62\u4f86\u7372\u53d6\u6578\u64da\u5eab\u7684\u4f7f\u7528\u60c5\u6cc1\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u898b\u7684SQL\u67e5\u8a62\u793a\u4f8b\uff0c\u9019\u4e9b\u67e5\u8a62\u53ef\u4ee5\u5e6b\u52a9\u60a8\u7372\u53d6\u6709\u95dc\u6578\u64da\u5eab\u7684\u8a73\u7d30\u4fe1\u606f\u3002<\/p>\n<h3 id=\"1-%e6%9f%a5%e7%9c%8b%e6%89%80%e6%9c%89%e6%95%b8%e6%93%9a%e5%ba%ab%e7%9a%84%e5%88%97%e8%a1%a8-KQbpMrcMWh\">1. \u67e5\u770b\u6240\u6709\u6578\u64da\u5eab\u7684\u5217\u8868<\/h3>\n<pre><code>SHOW DATABASES;<\/code><\/pre>\n<p>\u9019\u689d\u547d\u4ee4\u5c07\u5217\u51fa\u6240\u6709\u53ef\u7528\u7684\u6578\u64da\u5eab\u3002\u60a8\u53ef\u4ee5\u6839\u64da\u9700\u8981\u9078\u64c7\u7279\u5b9a\u7684\u6578\u64da\u5eab\u9032\u884c\u9032\u4e00\u6b65\u7684\u67e5\u8a62\u3002<\/p>\n<h3 id=\"2-%e6%9f%a5%e7%9c%8b%e7%89%b9%e5%ae%9a%e6%95%b8%e6%93%9a%e5%ba%ab%e7%9a%84%e8%a1%a8-KQbpMrcMWh\">2. \u67e5\u770b\u7279\u5b9a\u6578\u64da\u5eab\u7684\u8868<\/h3>\n<pre><code>USE your_database_name;\nSHOW TABLES;<\/code><\/pre>\n<p>\u66ff\u63db <code>your_database_name<\/code> \u70ba\u60a8\u60f3\u8981\u67e5\u770b\u7684\u6578\u64da\u5eab\u540d\u7a31\uff0c\u9019\u689d\u547d\u4ee4\u5c07\u986f\u793a\u8a72\u6578\u64da\u5eab\u4e2d\u7684\u6240\u6709\u8868\u3002<\/p>\n<h3 id=\"3-%e6%9f%a5%e7%9c%8b%e8%a1%a8%e7%9a%84%e4%bd%bf%e7%94%a8%e6%83%85%e6%b3%81-KQbpMrcMWh\">3. \u67e5\u770b\u8868\u7684\u4f7f\u7528\u60c5\u6cc1<\/h3>\n<pre><code>SHOW TABLE STATUS FROM your_database_name;<\/code><\/pre>\n<p>\u9019\u689d\u547d\u4ee4\u5c07\u986f\u793a\u6307\u5b9a\u6578\u64da\u5eab\u4e2d\u6240\u6709\u8868\u7684\u72c0\u614b\uff0c\u5305\u62ec\u884c\u6578\u3001\u6578\u64da\u5927\u5c0f\u548c\u7d22\u5f15\u5927\u5c0f\u7b49\u4fe1\u606f\u3002<\/p>\n<h3 id=\"4-%e6%9f%a5%e7%9c%8b%e6%95%b8%e6%93%9a%e5%ba%ab%e7%9a%84%e5%a4%a7%e5%b0%8f-KQbpMrcMWh\">4. \u67e5\u770b\u6578\u64da\u5eab\u7684\u5927\u5c0f<\/h3>\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\u689d\u67e5\u8a62\u5c07\u8fd4\u56de\u6240\u6709\u6578\u64da\u5eab\u7684\u5927\u5c0f\uff0c\u4ee5MB\u70ba\u55ae\u4f4d\uff0c\u5e6b\u52a9\u60a8\u4e86\u89e3\u6bcf\u500b\u6578\u64da\u5eab\u7684\u8cc7\u6e90\u4f7f\u7528\u60c5\u6cc1\u3002<\/p>\n<h3 id=\"5-%e7%9b%a3%e6%8e%a7%e6%9f%a5%e8%a9%a2%e6%80%a7%e8%83%bd-KQbpMrcMWh\">5. \u76e3\u63a7\u67e5\u8a62\u6027\u80fd<\/h3>\n<pre><code>SHOW PROCESSLIST;<\/code><\/pre>\n<p>\u9019\u689d\u547d\u4ee4\u5c07\u986f\u793a\u7576\u524d\u6b63\u5728\u57f7\u884c\u7684\u67e5\u8a62\uff0c\u5e6b\u52a9\u60a8\u8b58\u5225\u9577\u6642\u9593\u904b\u884c\u7684\u67e5\u8a62\u548c\u6f5b\u5728\u7684\u6027\u80fd\u554f\u984c\u3002<\/p>\n<h2 id=\"%e7%b5%90%e8%ab%96-KQbpMrcMWh\">\u7d50\u8ad6<\/h2>\n<p>\u901a\u904e\u4f7f\u7528\u4e0a\u8ff0SQL\u67e5\u8a62\uff0c\u60a8\u53ef\u4ee5\u5feb\u901f\u4e86\u89e3\u6578\u64da\u5eab\u7684\u4f7f\u7528\u60c5\u6cc1\uff0c\u5f9e\u800c\u9032\u884c\u6709\u6548\u7684\u7ba1\u7406\u548c\u512a\u5316\u3002\u5b9a\u671f\u76e3\u63a7\u6578\u64da\u5eab\u7684\u6027\u80fd\u4e0d\u50c5\u80fd\u63d0\u9ad8\u7cfb\u7d71\u7684\u7a69\u5b9a\u6027\uff0c\u9084\u80fd\u5e6b\u52a9\u60a8\u505a\u51fa\u66f4\u660e\u667a\u7684\u8cc7\u6e90\u5206\u914d\u6c7a\u7b56\u3002<\/p>\n<p>\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u53ef\u9760\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u89e3\u6c7a\u65b9\u6848\u4f86\u6258\u7ba1\u60a8\u7684\u6578\u64da\u5eab\uff0cServer.HK \u63d0\u4f9b\u591a\u7a2e\u9078\u64c7\uff0c\u6eff\u8db3\u4e0d\u540c\u9700\u6c42\u7684\u5ba2\u6236\u3002\u7121\u8ad6\u662f <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u9084\u662f\u5176\u4ed6\u985e\u578b\u7684 <a href=\"https:\/\/server.hk\">\u4f3a\u670d\u5668<\/a>\uff0c\u6211\u5011\u90fd\u80fd\u70ba\u60a8\u63d0\u4f9b\u7a69\u5b9a\u548c\u9ad8\u6548\u7684\u670d\u52d9\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5feb\u901f\u4e86\u89e3\u6578\u64da\u5eab\u4f7f\u7528\u60c5\u6cc1\uff0c\u638c\u63e1SQL\u67e5\u770b\u65b9\u6cd5\uff0c\u8f15\u9b06\u67e5\u8a62\u6240\u6709\u6578\u64da\u5eab\u7684\u4f7f\u7528\u72c0\u614b\u8207\u6027\u80fd\u6307\u6a19\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-166061","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/166061","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=166061"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/166061\/revisions"}],"predecessor-version":[{"id":166062,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/166061\/revisions\/166062"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=166061"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=166061"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=166061"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}