{"id":188922,"date":"2024-11-12T03:02:22","date_gmt":"2024-11-11T19:02:22","guid":{"rendered":"https:\/\/server.hk\/cnblog\/188922\/"},"modified":"2024-11-12T03:02:23","modified_gmt":"2024-11-11T19:02:23","slug":"%e5%a5%97%e9%a4%90%e6%95%b8%e6%93%9a%e5%84%aa%e5%8c%96%ef%bc%9a%e6%95%b8%e6%93%9a%e5%ba%ab%e8%a8%ad%e8%a8%88%e6%8a%80%e5%b7%a7-%e5%a5%97%e9%a4%90-%e6%95%b8%e6%93%9a%e5%ba%ab%e8%a8%ad%e8%a8%88","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/188922\/","title":{"rendered":"\u5957\u9910\u6578\u64da\u512a\u5316\uff1a\u6578\u64da\u5eab\u8a2d\u8a08\u6280\u5de7 (\u5957\u9910 \u6578\u64da\u5eab\u8a2d\u8a08)"},"content":{"rendered":"<h1 id=\"%e5%a5%97%e9%a4%90%e6%95%b8%e6%93%9a%e5%84%aa%e5%8c%96%ef%bc%9a%e6%95%b8%e6%93%9a%e5%ba%ab%e8%a8%ad%e8%a8%88%e6%8a%80%e5%b7%a7-KckbRkLxRs\">\u5957\u9910\u6578\u64da\u512a\u5316\uff1a\u6578\u64da\u5eab\u8a2d\u8a08\u6280\u5de7<\/h1>\n<p>\u5728\u7576\u4eca\u6578\u64da\u9a45\u52d5\u7684\u4e16\u754c\u4e2d\uff0c\u6578\u64da\u5eab\u8a2d\u8a08\u7684\u512a\u5316\u5c0d\u65bc\u63d0\u5347\u61c9\u7528\u7a0b\u5e8f\u6027\u80fd\u548c\u7528\u6236\u9ad4\u9a57\u81f3\u95dc\u91cd\u8981\u3002\u7121\u8ad6\u662f\u5c0f\u578b\u4f01\u696d\u9084\u662f\u5927\u578b\u4f01\u696d\uff0c\u826f\u597d\u7684\u6578\u64da\u5eab\u8a2d\u8a08\u90fd\u80fd\u986f\u8457\u63d0\u9ad8\u6578\u64da\u5b58\u53d6\u7684\u6548\u7387\uff0c\u964d\u4f4e\u8cc7\u6e90\u6d88\u8017\uff0c\u4e26\u78ba\u4fdd\u6578\u64da\u7684\u5b8c\u6574\u6027\u548c\u5b89\u5168\u6027\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u4e00\u4e9b\u95dc\u9375\u7684\u6578\u64da\u5eab\u8a2d\u8a08\u6280\u5de7\uff0c\u5e6b\u52a9\u60a8\u512a\u5316\u5957\u9910\u6578\u64da\u7684\u7ba1\u7406\u3002<\/p>\n<h2 id=\"1-%e6%ad%a3%e8%a6%8f%e5%8c%96%e8%88%87%e5%8f%8d%e6%ad%a3%e8%a6%8f%e5%8c%96-KckbRkLxRs\">1. \u6b63\u898f\u5316\u8207\u53cd\u6b63\u898f\u5316<\/h2>\n<p>\u6578\u64da\u5eab\u6b63\u898f\u5316\u662f\u6307\u5c07\u6578\u64da\u5206\u89e3\u70ba\u591a\u500b\u8868\uff0c\u4ee5\u6d88\u9664\u5197\u9918\u4e26\u63d0\u9ad8\u6578\u64da\u5b8c\u6574\u6027\u3002\u6b63\u898f\u5316\u901a\u5e38\u9075\u5faa\u5e7e\u500b\u968e\u6bb5\uff0c\u7a31\u70ba\u6b63\u898f\u5f62\u5f0f\uff08Normal Forms\uff09\u3002\u4f8b\u5982\uff0c\u7b2c\u4e00\u6b63\u898f\u5f62\u5f0f\uff081NF\uff09\u8981\u6c42\u6bcf\u500b\u8868\u7684\u6bcf\u4e00\u5217\u90fd\u5fc5\u9808\u662f\u539f\u5b50\u6027\u7684\uff0c\u9019\u610f\u5473\u8457\u6bcf\u500b\u6b04\u4f4d\u53ea\u80fd\u5305\u542b\u4e00\u500b\u503c\u3002<\/p>\n<p>\u7136\u800c\uff0c\u5728\u67d0\u4e9b\u60c5\u6cc1\u4e0b\uff0c\u904e\u5ea6\u6b63\u898f\u5316\u53ef\u80fd\u6703\u5c0e\u81f4\u6027\u80fd\u4e0b\u964d\uff0c\u56e0\u70ba\u9700\u8981\u9032\u884c\u591a\u6b21\u806f\u63a5\u64cd\u4f5c\u3002\u9019\u6642\uff0c\u53cd\u6b63\u898f\u5316\uff08Denormalization\uff09\u53ef\u4ee5\u8003\u616e\u3002\u53cd\u6b63\u898f\u5316\u662f\u5c07\u6578\u64da\u91cd\u65b0\u7d44\u5408\u5230\u8f03\u5c11\u7684\u8868\u4e2d\uff0c\u4ee5\u63d0\u9ad8\u67e5\u8a62\u6027\u80fd\u3002\u9019\u7a2e\u65b9\u6cd5\u5728\u8b80\u53d6\u64cd\u4f5c\u983b\u7e41\u7684\u61c9\u7528\u4e2d\u5c24\u70ba\u6709\u6548\u3002<\/p>\n<h3 id=\"%e7%a4%ba%e4%be%8b%ef%bc%9a-KckbRkLxRs\">\u793a\u4f8b\uff1a<\/h3>\n<pre><code>-- \u6b63\u898f\u5316\u793a\u4f8b\nCREATE TABLE \u5ba2\u6236 (\n    \u5ba2\u6236ID INT PRIMARY KEY,\n    \u59d3\u540d VARCHAR(100),\n    \u96fb\u5b50\u90f5\u4ef6 VARCHAR(100)\n);\n\nCREATE TABLE \u8a02\u55ae (\n    \u8a02\u55aeID INT PRIMARY KEY,\n    \u5ba2\u6236ID INT,\n    \u8a02\u55ae\u65e5\u671f DATE,\n    FOREIGN KEY (\u5ba2\u6236ID) REFERENCES \u5ba2\u6236(\u5ba2\u6236ID)\n);\n<\/code><\/pre>\n<h2 id=\"2-%e9%81%a9%e7%95%b6%e7%9a%84%e7%b4%a2%e5%bc%95%e8%a8%ad%e8%a8%88-KckbRkLxRs\">2. \u9069\u7576\u7684\u7d22\u5f15\u8a2d\u8a08<\/h2>\n<p>\u7d22\u5f15\u662f\u63d0\u9ad8\u6578\u64da\u5eab\u67e5\u8a62\u6027\u80fd\u7684\u95dc\u9375\u5de5\u5177\u3002\u901a\u904e\u5728\u8868\u7684\u7279\u5b9a\u5217\u4e0a\u5275\u5efa\u7d22\u5f15\uff0c\u53ef\u4ee5\u986f\u8457\u52a0\u5feb\u67e5\u8a62\u901f\u5ea6\u3002\u7136\u800c\uff0c\u904e\u591a\u7684\u7d22\u5f15\u6703\u5c0e\u81f4\u5beb\u5165\u64cd\u4f5c\u7684\u6027\u80fd\u4e0b\u964d\uff0c\u56e0\u70ba\u6bcf\u6b21\u63d2\u5165\u3001\u66f4\u65b0\u6216\u522a\u9664\u6578\u64da\u6642\uff0c\u7d22\u5f15\u4e5f\u9700\u8981\u66f4\u65b0\u3002\u56e0\u6b64\uff0c\u8a2d\u8a08\u7d22\u5f15\u6642\u61c9\u8003\u616e\u67e5\u8a62\u7684\u983b\u7387\u548c\u985e\u578b\u3002<\/p>\n<h3 id=\"%e7%a4%ba%e4%be%8b%ef%bc%9a-KckbRkLxRs\">\u793a\u4f8b\uff1a<\/h3>\n<pre><code>-- \u5275\u5efa\u7d22\u5f15\u793a\u4f8b\nCREATE INDEX idx_\u5ba2\u6236_\u96fb\u5b50\u90f5\u4ef6 ON \u5ba2\u6236(\u96fb\u5b50\u90f5\u4ef6);\n<\/code><\/pre>\n<h2 id=\"3-%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-KckbRkLxRs\">3. \u4f7f\u7528\u5408\u9069\u7684\u6578\u64da\u985e\u578b<\/h2>\n<p>\u9078\u64c7\u5408\u9069\u7684\u6578\u64da\u985e\u578b\u4e0d\u50c5\u80fd\u7bc0\u7701\u5b58\u5132\u7a7a\u9593\uff0c\u9084\u80fd\u63d0\u9ad8\u6027\u80fd\u3002\u4f8b\u5982\uff0c\u5c0d\u65bc\u5b58\u5132\u65e5\u671f\u7684\u6b04\u4f4d\uff0c\u4f7f\u7528 DATE \u985e\u578b\u800c\u4e0d\u662f VARCHAR \u985e\u578b\u53ef\u4ee5\u63d0\u9ad8\u67e5\u8a62\u6548\u7387\u3002\u6b64\u5916\uff0c\u5c0d\u65bc\u6574\u6578\u985e\u578b\uff0c\u9078\u64c7\u5408\u9069\u7684\u5927\u5c0f\uff08\u5982 TINYINT\u3001SMALLINT\u3001INT\uff09\u4e5f\u80fd\u6709\u6548\u6e1b\u5c11\u5b58\u5132\u9700\u6c42\u3002<\/p>\n<h3 id=\"%e7%a4%ba%e4%be%8b%ef%bc%9a-KckbRkLxRs\">\u793a\u4f8b\uff1a<\/h3>\n<pre><code>-- \u6578\u64da\u985e\u578b\u793a\u4f8b\nCREATE TABLE \u7522\u54c1 (\n    \u7522\u54c1ID INT PRIMARY KEY,\n    \u7522\u54c1\u540d\u7a31 VARCHAR(255),\n    \u50f9\u683c DECIMAL(10, 2),\n    \u5eab\u5b58\u91cf SMALLINT\n);\n<\/code><\/pre>\n<h2 id=\"4-%e5%af%a6%e6%96%bd%e6%95%b8%e6%93%9a%e5%88%86%e5%8d%80-KckbRkLxRs\">4. \u5be6\u65bd\u6578\u64da\u5206\u5340<\/h2>\n<p>\u6578\u64da\u5206\u5340\u662f\u5c07\u5927\u578b\u8868\u5206\u5272\u6210\u8f03\u5c0f\u7684\u3001\u53ef\u7ba1\u7406\u7684\u90e8\u5206\uff0c\u4ee5\u63d0\u9ad8\u67e5\u8a62\u6027\u80fd\u548c\u7dad\u8b77\u6548\u7387\u3002\u9019\u7a2e\u6280\u8853\u7279\u5225\u9069\u7528\u65bc\u8655\u7406\u5927\u91cf\u6578\u64da\u7684\u61c9\u7528\u7a0b\u5e8f\u3002\u901a\u904e\u5206\u5340\uff0c\u6578\u64da\u5eab\u53ef\u4ee5\u66f4\u5feb\u5730\u5b9a\u4f4d\u6240\u9700\u7684\u6578\u64da\uff0c\u5f9e\u800c\u63d0\u9ad8\u67e5\u8a62\u901f\u5ea6\u3002<\/p>\n<h3 id=\"%e7%a4%ba%e4%be%8b%ef%bc%9a-KckbRkLxRs\">\u793a\u4f8b\uff1a<\/h3>\n<pre><code>-- \u6578\u64da\u5206\u5340\u793a\u4f8b\nCREATE TABLE \u8a02\u55ae (\n    \u8a02\u55aeID INT,\n    \u5ba2\u6236ID INT,\n    \u8a02\u55ae\u65e5\u671f DATE\n) PARTITION BY RANGE (YEAR(\u8a02\u55ae\u65e5\u671f)) (\n    PARTITION p2021 VALUES LESS THAN (2022),\n    PARTITION p2022 VALUES LESS THAN (2023)\n);\n<\/code><\/pre>\n<h2 id=\"5-%e5%ae%9a%e6%9c%9f%e7%b6%ad%e8%ad%b7%e8%88%87%e7%9b%a3%e6%8e%a7-KckbRkLxRs\">5. \u5b9a\u671f\u7dad\u8b77\u8207\u76e3\u63a7<\/h2>\n<p>\u6578\u64da\u5eab\u7684\u6027\u80fd\u512a\u5316\u662f\u4e00\u500b\u6301\u7e8c\u7684\u904e\u7a0b\u3002\u5b9a\u671f\u9032\u884c\u6578\u64da\u5eab\u7dad\u8b77\uff0c\u5982\u91cd\u5efa\u7d22\u5f15\u3001\u66f4\u65b0\u7d71\u8a08\u4fe1\u606f\u548c\u6e05\u7406\u904e\u671f\u6578\u64da\uff0c\u53ef\u4ee5\u78ba\u4fdd\u6578\u64da\u5eab\u59cb\u7d42\u4fdd\u6301\u6700\u4f73\u6027\u80fd\u3002\u6b64\u5916\uff0c\u4f7f\u7528\u76e3\u63a7\u5de5\u5177\u4f86\u8ddf\u8e2a\u6578\u64da\u5eab\u7684\u6027\u80fd\u6307\u6a19\uff0c\u53ef\u4ee5\u53ca\u65e9\u767c\u73fe\u6f5b\u5728\u554f\u984c\u4e26\u9032\u884c\u8abf\u6574\u3002<\/p>\n<h2 id=\"%e7%b8%bd%e7%b5%90-KckbRkLxRs\">\u7e3d\u7d50<\/h2>\n<p>\u901a\u904e\u6b63\u898f\u5316\u8207\u53cd\u6b63\u898f\u5316\u3001\u9069\u7576\u7684\u7d22\u5f15\u8a2d\u8a08\u3001\u9078\u64c7\u5408\u9069\u7684\u6578\u64da\u985e\u578b\u3001\u5be6\u65bd\u6578\u64da\u5206\u5340\u4ee5\u53ca\u5b9a\u671f\u7dad\u8b77\u8207\u76e3\u63a7\uff0c\u60a8\u53ef\u4ee5\u986f\u8457\u512a\u5316\u5957\u9910\u6578\u64da\u7684\u7ba1\u7406\u3002\u9019\u4e9b\u6578\u64da\u5eab\u8a2d\u8a08\u6280\u5de7\u4e0d\u50c5\u80fd\u63d0\u9ad8\u6027\u80fd\uff0c\u9084\u80fd\u78ba\u4fdd\u6578\u64da\u7684\u5b8c\u6574\u6027\u548c\u5b89\u5168\u6027\u3002\u82e5\u60a8\u9700\u8981\u9032\u4e00\u6b65\u4e86\u89e3\u5982\u4f55\u5728\u9999\u6e2f\u9032\u884c\u9ad8\u6548\u7684\u6578\u64da\u5eab\u7ba1\u7406\uff0c\u8acb\u8a2a\u554f\u6211\u5011\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u670d\u52d9\uff0c\u7372\u53d6\u66f4\u591a\u8cc7\u8a0a\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22\u5957\u9910\u6578\u64da\u512a\u5316\u7684\u95dc\u9375\u6280\u5de7\uff0c\u63d0\u5347\u6578\u64da\u5eab\u8a2d\u8a08\u6548\u7387\uff0c\u5be6\u73fe\u66f4\u9ad8\u6548\u7684\u6578\u64da\u7ba1\u7406\u8207\u5b58\u53d6\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-188922","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/188922","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=188922"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/188922\/revisions"}],"predecessor-version":[{"id":188923,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/188922\/revisions\/188923"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=188922"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=188922"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=188922"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}