{"id":158195,"date":"2024-11-03T00:48:24","date_gmt":"2024-11-02T16:48:24","guid":{"rendered":"https:\/\/server.hk\/cnblog\/158195\/"},"modified":"2024-11-03T00:48:25","modified_gmt":"2024-11-02T16:48:25","slug":"%e9%ab%98%e6%95%88%e5%af%a6%e7%8f%be%e6%95%b8%e6%93%9a%e5%85%b1%e4%ba%ab%ef%bc%9a%e5%90%8c%e4%b8%80%e8%a1%a8%e4%b8%ad%e7%9a%84%e6%95%b8%e6%93%9a%e5%ba%ab%e6%87%89%e7%94%a8%e6%8a%80%e5%b7%a7%ef%bc%88","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/158195\/","title":{"rendered":"\u9ad8\u6548\u5be6\u73fe\u6578\u64da\u5171\u4eab\uff1a\u540c\u4e00\u8868\u4e2d\u7684\u6578\u64da\u5eab\u61c9\u7528\u6280\u5de7\uff08\u5982\u4f55\u61c9\u7528\u540c\u4e00\u8868\u4e2d\u7684\u6578\u64da\u5eab\uff09"},"content":{"rendered":"<h1 id=\"%e9%ab%98%e6%95%88%e5%af%a6%e7%8f%be%e6%95%b8%e6%93%9a%e5%85%b1%e4%ba%ab%ef%bc%9a%e5%90%8c%e4%b8%80%e8%a1%a8%e4%b8%ad%e7%9a%84%e6%95%b8%e6%93%9a%e5%ba%ab%e6%87%89%e7%94%a8%e6%8a%80%e5%b7%a7-sWrEHyFBqY\">\u9ad8\u6548\u5be6\u73fe\u6578\u64da\u5171\u4eab\uff1a\u540c\u4e00\u8868\u4e2d\u7684\u6578\u64da\u5eab\u61c9\u7528\u6280\u5de7<\/h1>\n<p>\u5728\u7576\u4eca\u6578\u64da\u9a45\u52d5\u7684\u4e16\u754c\u4e2d\uff0c\u6578\u64da\u5171\u4eab\u5df2\u6210\u70ba\u4f01\u696d\u904b\u71df\u4e2d\u4e0d\u53ef\u6216\u7f3a\u7684\u4e00\u90e8\u5206\u3002\u5c24\u5176\u662f\u5728\u6578\u64da\u5eab\u7ba1\u7406\u4e2d\uff0c\u5982\u4f55\u9ad8\u6548\u5730\u5be6\u73fe\u6578\u64da\u5171\u4eab\uff0c\u7279\u5225\u662f\u5728\u540c\u4e00\u8868\u4e2d\uff0c\u5c0d\u65bc\u63d0\u5347\u696d\u52d9\u6548\u7387\u548c\u6578\u64da\u4e00\u81f4\u6027\u81f3\u95dc\u91cd\u8981\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u4e00\u4e9b\u5728\u540c\u4e00\u8868\u4e2d\u9032\u884c\u6578\u64da\u5eab\u61c9\u7528\u7684\u6280\u5de7\uff0c\u5e6b\u52a9\u8b80\u8005\u66f4\u597d\u5730\u7406\u89e3\u5982\u4f55\u5229\u7528\u9019\u4e9b\u6280\u5de7\u4f86\u512a\u5316\u6578\u64da\u5171\u4eab\u3002<\/p>\n<h2 id=\"1-%e7%90%86%e8%a7%a3%e6%95%b8%e6%93%9a%e5%ba%ab%e8%a1%a8%e7%9a%84%e7%b5%90%e6%a7%8b-sWrEHyFBqY\">1. \u7406\u89e3\u6578\u64da\u5eab\u8868\u7684\u7d50\u69cb<\/h2>\n<p>\u5728\u958b\u59cb\u4e4b\u524d\uff0c\u9996\u5148\u9700\u8981\u4e86\u89e3\u6578\u64da\u5eab\u8868\u7684\u57fa\u672c\u7d50\u69cb\u3002\u6578\u64da\u5eab\u8868\u7531\u884c\u548c\u5217\u7d44\u6210\uff0c\u6bcf\u4e00\u884c\u4ee3\u8868\u4e00\u689d\u8a18\u9304\uff0c\u800c\u6bcf\u4e00\u5217\u5247\u4ee3\u8868\u8a72\u8a18\u9304\u7684\u5c6c\u6027\u3002\u70ba\u4e86\u5be6\u73fe\u9ad8\u6548\u7684\u6578\u64da\u5171\u4eab\uff0c\u5fc5\u9808\u78ba\u4fdd\u8868\u7684\u8a2d\u8a08\u80fd\u5920\u652f\u6301\u591a\u7a2e\u67e5\u8a62\u548c\u64cd\u4f5c\u3002<\/p>\n<h2 id=\"2-%e4%bd%bf%e7%94%a8%e7%b4%a2%e5%bc%95%e6%8f%90%e9%ab%98%e6%9f%a5%e8%a9%a2%e6%95%88%e7%8e%87-sWrEHyFBqY\">2. \u4f7f\u7528\u7d22\u5f15\u63d0\u9ad8\u67e5\u8a62\u6548\u7387<\/h2>\n<p>\u7d22\u5f15\u662f\u6578\u64da\u5eab\u4e2d\u4e00\u7a2e\u91cd\u8981\u7684\u6578\u64da\u7d50\u69cb\uff0c\u53ef\u4ee5\u986f\u8457\u63d0\u9ad8\u67e5\u8a62\u6548\u7387\u3002\u901a\u904e\u5728\u8868\u7684\u67d0\u4e9b\u5217\u4e0a\u5275\u5efa\u7d22\u5f15\uff0c\u53ef\u4ee5\u52a0\u5feb\u67e5\u8a62\u901f\u5ea6\uff0c\u7279\u5225\u662f\u5728\u9700\u8981\u983b\u7e41\u6aa2\u7d22\u7684\u60c5\u6cc1\u4e0b\u3002\u4f8b\u5982\uff0c\u5c0d\u65bc\u4e00\u500b\u7528\u6236\u4fe1\u606f\u8868\uff0c\u5982\u679c\u7d93\u5e38\u6839\u64da\u7528\u6236ID\u67e5\u8a62\uff0c\u53ef\u4ee5\u5728\u7528\u6236ID\u5217\u4e0a\u5275\u5efa\u7d22\u5f15\uff1a<\/p>\n<pre><code>CREATE INDEX idx_user_id ON users(user_id);<\/code><\/pre>\n<p>\u9019\u6a23\uff0c\u5728\u9032\u884c\u67e5\u8a62\u6642\uff0c\u6578\u64da\u5eab\u53ef\u4ee5\u66f4\u5feb\u5730\u5b9a\u4f4d\u5230\u6240\u9700\u7684\u6578\u64da\uff0c\u5f9e\u800c\u63d0\u9ad8\u6574\u9ad4\u6027\u80fd\u3002<\/p>\n<h2 id=\"3-%e5%88%a9%e7%94%a8%e8%a6%96%e5%9c%96%e9%80%b2%e8%a1%8c%e6%95%b8%e6%93%9a%e5%85%b1%e4%ba%ab-sWrEHyFBqY\">3. \u5229\u7528\u8996\u5716\u9032\u884c\u6578\u64da\u5171\u4eab<\/h2>\n<p>\u8996\u5716\u662f\u4e00\u7a2e\u865b\u64ec\u8868\uff0c\u53ef\u4ee5\u6839\u64da\u4e00\u500b\u6216\u591a\u500b\u8868\u7684\u67e5\u8a62\u7d50\u679c\u751f\u6210\u3002\u4f7f\u7528\u8996\u5716\u53ef\u4ee5\u7c21\u5316\u6578\u64da\u5171\u4eab\u7684\u904e\u7a0b\uff0c\u56e0\u70ba\u5b83\u5011\u53ef\u4ee5\u96b1\u85cf\u5e95\u5c64\u8868\u7684\u8907\u96dc\u6027\uff0c\u4e26\u63d0\u4f9b\u4e00\u500b\u7c21\u55ae\u7684\u63a5\u53e3\u4f9b\u7528\u6236\u8a2a\u554f\u3002\u4f8b\u5982\uff0c\u5047\u8a2d\u6709\u4e00\u500b\u5305\u542b\u7528\u6236\u548c\u8a02\u55ae\u4fe1\u606f\u7684\u8868\uff0c\u60a8\u53ef\u4ee5\u5275\u5efa\u4e00\u500b\u8996\u5716\u4f86\u986f\u793a\u7528\u6236\u7684\u8a02\u55ae\u7e3d\u6578\uff1a<\/p>\n<pre><code>CREATE VIEW user_order_summary AS\nSELECT user_id, COUNT(order_id) AS total_orders\nFROM orders\nGROUP BY user_id;<\/code><\/pre>\n<p>\u9019\u6a23\uff0c\u7528\u6236\u53ea\u9700\u67e5\u8a62\u8996\u5716\uff0c\u800c\u4e0d\u5fc5\u76f4\u63a5\u64cd\u4f5c\u5e95\u5c64\u8868\uff0c\u5f9e\u800c\u63d0\u9ad8\u4e86\u6578\u64da\u5171\u4eab\u7684\u6548\u7387\u3002<\/p>\n<h2 id=\"4-%e4%bd%bf%e7%94%a8%e8%a7%b8%e7%99%bc%e5%99%a8%e8%87%aa%e5%8b%95%e5%8c%96%e6%95%b8%e6%93%9a%e6%9b%b4%e6%96%b0-sWrEHyFBqY\">4. \u4f7f\u7528\u89f8\u767c\u5668\u81ea\u52d5\u5316\u6578\u64da\u66f4\u65b0<\/h2>\n<p>\u89f8\u767c\u5668\u662f\u4e00\u7a2e\u7279\u6b8a\u7684\u5b58\u5132\u904e\u7a0b\uff0c\u53ef\u4ee5\u5728\u7279\u5b9a\u4e8b\u4ef6\u767c\u751f\u6642\u81ea\u52d5\u57f7\u884c\u3002\u901a\u904e\u4f7f\u7528\u89f8\u767c\u5668\uff0c\u53ef\u4ee5\u81ea\u52d5\u66f4\u65b0\u540c\u4e00\u8868\u4e2d\u7684\u6578\u64da\uff0c\u5f9e\u800c\u5be6\u73fe\u6578\u64da\u7684\u4e00\u81f4\u6027\u3002\u4f8b\u5982\uff0c\u7576\u4e00\u500b\u7528\u6236\u7684\u8a02\u55ae\u72c0\u614b\u66f4\u65b0\u6642\uff0c\u53ef\u4ee5\u4f7f\u7528\u89f8\u767c\u5668\u81ea\u52d5\u66f4\u65b0\u7528\u6236\u7684\u8a02\u55ae\u7e3d\u6578\uff1a<\/p>\n<pre><code>CREATE TRIGGER update_order_count\nAFTER UPDATE ON orders\nFOR EACH ROW\nBEGIN\n    UPDATE users\n    SET total_orders = (SELECT COUNT(*) FROM orders WHERE user_id = NEW.user_id)\n    WHERE user_id = NEW.user_id;\nEND;<\/code><\/pre>\n<p>\u9019\u6a23\uff0c\u7576\u8a02\u55ae\u72c0\u614b\u767c\u751f\u8b8a\u5316\u6642\uff0c\u7528\u6236\u7684\u8a02\u55ae\u7e3d\u6578\u6703\u81ea\u52d5\u66f4\u65b0\uff0c\u6e1b\u5c11\u4e86\u624b\u52d5\u64cd\u4f5c\u7684\u9700\u8981\u3002<\/p>\n<h2 id=\"5-%e6%95%b8%e6%93%9a%e5%88%86%e5%8d%80%e6%8f%90%e9%ab%98%e6%80%a7%e8%83%bd-sWrEHyFBqY\">5. \u6578\u64da\u5206\u5340\u63d0\u9ad8\u6027\u80fd<\/h2>\n<p>\u5c0d\u65bc\u5927\u578b\u6578\u64da\u8868\uff0c\u6578\u64da\u5206\u5340\u662f\u4e00\u7a2e\u6709\u6548\u7684\u6280\u8853\uff0c\u53ef\u4ee5\u5c07\u8868\u5206\u6210\u591a\u500b\u90e8\u5206\uff0c\u4ee5\u63d0\u9ad8\u67e5\u8a62\u6027\u80fd\u548c\u7ba1\u7406\u6548\u7387\u3002\u901a\u904e\u5c07\u6578\u64da\u6839\u64da\u67d0\u4e9b\u689d\u4ef6\uff08\u5982\u65e5\u671f\u6216\u5730\u7406\u4f4d\u7f6e\uff09\u9032\u884c\u5206\u5340\uff0c\u53ef\u4ee5\u52a0\u5feb\u67e5\u8a62\u901f\u5ea6\uff0c\u4e26\u6e1b\u5c11\u6578\u64da\u5eab\u7684\u8ca0\u64d4\u3002<\/p>\n<pre><code>CREATE TABLE orders (\n    order_id INT,\n    user_id INT,\n    order_date DATE\n) PARTITION BY RANGE (YEAR(order_date)) (\n    PARTITION p2021 VALUES LESS THAN (2022),\n    PARTITION p2022 VALUES LESS THAN (2023)\n);<\/code><\/pre>\n<p>\u9019\u6a23\uff0c\u67e5\u8a62\u7279\u5b9a\u5e74\u4efd\u7684\u8a02\u55ae\u6642\uff0c\u6578\u64da\u5eab\u53ea\u9700\u6383\u63cf\u76f8\u95dc\u7684\u5206\u5340\uff0c\u5f9e\u800c\u63d0\u9ad8\u4e86\u67e5\u8a62\u6548\u7387\u3002<\/p>\n<h2 id=\"%e7%b8%bd%e7%b5%90-sWrEHyFBqY\">\u7e3d\u7d50<\/h2>\n<p>\u9ad8\u6548\u5be6\u73fe\u6578\u64da\u5171\u4eab\u5728\u73fe\u4ee3\u4f01\u696d\u4e2d\u81f3\u95dc\u91cd\u8981\u3002\u901a\u904e\u7406\u89e3\u6578\u64da\u5eab\u8868\u7684\u7d50\u69cb\u3001\u4f7f\u7528\u7d22\u5f15\u3001\u5229\u7528\u8996\u5716\u3001\u89f8\u767c\u5668\u548c\u6578\u64da\u5206\u5340\u7b49\u6280\u5de7\uff0c\u53ef\u4ee5\u986f\u8457\u63d0\u9ad8\u6578\u64da\u5171\u4eab\u7684\u6548\u7387\u548c\u4e00\u81f4\u6027\u3002\u9019\u4e9b\u6280\u8853\u4e0d\u50c5\u80fd\u5920\u7c21\u5316\u6578\u64da\u7ba1\u7406\uff0c\u9084\u80fd\u63d0\u5347\u696d\u52d9\u904b\u71df\u7684\u9748\u6d3b\u6027\u548c\u53cd\u61c9\u901f\u5ea6\u3002<\/p>\n<p>\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u53ef\u9760\u7684 <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u89e3\u6c7a\u65b9\u6848\uff0cServer.HK \u63d0\u4f9b\u591a\u7a2e\u9078\u64c7\uff0c\u5e6b\u52a9\u60a8\u9ad8\u6548\u7ba1\u7406\u6578\u64da\u548c\u61c9\u7528\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22\u9ad8\u6548\u5be6\u73fe\u6578\u64da\u5171\u4eab\u7684\u6280\u5de7\uff0c\u5b78\u7fd2\u5982\u4f55\u5728\u540c\u4e00\u8868\u4e2d\u61c9\u7528\u6578\u64da\u5eab\uff0c\u63d0\u5347\u6578\u64da\u7ba1\u7406\u8207\u5354\u4f5c\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-158195","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/158195","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=158195"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/158195\/revisions"}],"predecessor-version":[{"id":158196,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/158195\/revisions\/158196"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=158195"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=158195"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=158195"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}