{"id":153789,"date":"2024-11-02T10:22:18","date_gmt":"2024-11-02T02:22:18","guid":{"rendered":"https:\/\/server.hk\/cnblog\/153789\/"},"modified":"2024-11-02T10:22:19","modified_gmt":"2024-11-02T02:22:19","slug":"%e5%b8%b6%e6%82%a8%e6%b7%b1%e5%85%a5%e4%ba%86%e8%a7%a3mysql%e7%b4%a2%e5%bc%95%e9%a1%9e%e5%9e%8b","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/153789\/","title":{"rendered":"\u5e36\u60a8\u6df1\u5165\u4e86\u89e3MySQL\u7d22\u5f15\u985e\u578b"},"content":{"rendered":"<h1 id=\"%e5%b8%b6%e6%82%a8%e6%b7%b1%e5%85%a5%e4%ba%86%e8%a7%a3mysql%e7%b4%a2%e5%bc%95%e9%a1%9e%e5%9e%8b-kcQeizdzWC\">\u5e36\u60a8\u6df1\u5165\u4e86\u89e3MySQL\u7d22\u5f15\u985e\u578b<\/h1>\n<p>\u5728\u6578\u64da\u5eab\u7ba1\u7406\u7cfb\u7d71\u4e2d\uff0c\u7d22\u5f15\u662f\u4e00\u7a2e\u91cd\u8981\u7684\u6578\u64da\u7d50\u69cb\uff0c\u7528\u65bc\u63d0\u9ad8\u67e5\u8a62\u6548\u7387\u3002MySQL\u4f5c\u70ba\u4e00\u500b\u6d41\u884c\u7684\u958b\u6e90\u6578\u64da\u5eab\u7ba1\u7406\u7cfb\u7d71\uff0c\u63d0\u4f9b\u4e86\u591a\u7a2e\u7d22\u5f15\u985e\u578b\uff0c\u4ee5\u6eff\u8db3\u4e0d\u540c\u7684\u61c9\u7528\u9700\u6c42\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0eMySQL\u7684\u5404\u7a2e\u7d22\u5f15\u985e\u578b\u53ca\u5176\u7279\u9ede\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%af%e7%b4%a2%e5%bc%95%ef%bc%9f-kcQeizdzWC\">\u4ec0\u9ebc\u662f\u7d22\u5f15\uff1f<\/h2>\n<p>\u7d22\u5f15\u662f\u4e00\u7a2e\u6578\u64da\u7d50\u69cb\uff0c\u80fd\u5920\u52a0\u901f\u6578\u64da\u6aa2\u7d22\u7684\u904e\u7a0b\u3002\u5b83\u985e\u4f3c\u65bc\u66f8\u7c4d\u7684\u76ee\u9304\uff0c\u5e6b\u52a9\u6578\u64da\u5eab\u5feb\u901f\u5b9a\u4f4d\u5230\u6240\u9700\u7684\u6578\u64da\u3002\u4f7f\u7528\u7d22\u5f15\u53ef\u4ee5\u986f\u8457\u63d0\u9ad8\u67e5\u8a62\u6027\u80fd\uff0c\u7279\u5225\u662f\u5728\u8655\u7406\u5927\u91cf\u6578\u64da\u6642\u3002<\/p>\n<h2 id=\"mysql%e4%b8%ad%e7%9a%84%e7%b4%a2%e5%bc%95%e9%a1%9e%e5%9e%8b-kcQeizdzWC\">MySQL\u4e2d\u7684\u7d22\u5f15\u985e\u578b<\/h2>\n<p>MySQL\u652f\u6301\u591a\u7a2e\u7d22\u5f15\u985e\u578b\uff0c\u4ee5\u4e0b\u662f\u5e7e\u7a2e\u4e3b\u8981\u7684\u7d22\u5f15\u985e\u578b\uff1a<\/p>\n<h3 id=\"1-%e4%b8%bb%e9%8d%b5%e7%b4%a2%e5%bc%95%ef%bc%88primary-key-index%ef%bc%89-kcQeizdzWC\">1. \u4e3b\u9375\u7d22\u5f15\uff08Primary Key Index\uff09<\/h3>\n<p>\u4e3b\u9375\u7d22\u5f15\u662f\u552f\u4e00\u6a19\u8b58\u8868\u4e2d\u6bcf\u4e00\u884c\u7684\u7d22\u5f15\u3002\u6bcf\u500b\u8868\u53ea\u80fd\u6709\u4e00\u500b\u4e3b\u9375\uff0c\u4e26\u4e14\u4e3b\u9375\u7684\u503c\u4e0d\u80fd\u70baNULL\u3002\u4e3b\u9375\u7d22\u5f15\u901a\u5e38\u4f7f\u7528B-tree\u7d50\u69cb\u4f86\u5be6\u73fe\uff0c\u9019\u4f7f\u5f97\u67e5\u8a62\u901f\u5ea6\u975e\u5e38\u5feb\u3002<\/p>\n<pre><code>CREATE TABLE users (\n    id INT AUTO_INCREMENT PRIMARY KEY,\n    username VARCHAR(50) NOT NULL,\n    email VARCHAR(100) NOT NULL\n);<\/code><\/pre>\n<h3 id=\"2-%e5%94%af%e4%b8%80%e7%b4%a2%e5%bc%95%ef%bc%88unique-index%ef%bc%89-kcQeizdzWC\">2. \u552f\u4e00\u7d22\u5f15\uff08Unique Index\uff09<\/h3>\n<p>\u552f\u4e00\u7d22\u5f15\u78ba\u4fdd\u7d22\u5f15\u5217\u4e2d\u7684\u6240\u6709\u503c\u90fd\u662f\u552f\u4e00\u7684\uff0c\u4f46\u5141\u8a31NULL\u503c\u3002\u9019\u610f\u5473\u8457\u5728\u552f\u4e00\u7d22\u5f15\u7684\u5217\u4e2d\uff0c\u4e0d\u80fd\u6709\u91cd\u8907\u7684\u6578\u64da\u3002<\/p>\n<pre><code>CREATE TABLE products (\n    product_id INT AUTO_INCREMENT,\n    product_name VARCHAR(100) NOT NULL,\n    UNIQUE (product_name)\n);<\/code><\/pre>\n<h3 id=\"3-%e6%99%ae%e9%80%9a%e7%b4%a2%e5%bc%95%ef%bc%88index%ef%bc%89-kcQeizdzWC\">3. \u666e\u901a\u7d22\u5f15\uff08Index\uff09<\/h3>\n<p>\u666e\u901a\u7d22\u5f15\u662f\u6700\u57fa\u672c\u7684\u7d22\u5f15\u985e\u578b\uff0c\u6c92\u6709\u552f\u4e00\u6027\u9650\u5236\u3002\u5b83\u53ef\u4ee5\u52a0\u901f\u67e5\u8a62\uff0c\u4f46\u4e0d\u4fdd\u8b49\u7d22\u5f15\u5217\u4e2d\u7684\u503c\u662f\u552f\u4e00\u7684\u3002<\/p>\n<pre><code>CREATE INDEX idx_username ON users (username);<\/code><\/pre>\n<h3 id=\"4-%e5%85%a8%e6%96%87%e7%b4%a2%e5%bc%95%ef%bc%88fulltext-index%ef%bc%89-kcQeizdzWC\">4. \u5168\u6587\u7d22\u5f15\uff08Fulltext Index\uff09<\/h3>\n<p>\u5168\u6587\u7d22\u5f15\u7528\u65bc\u5c0d\u6587\u672c\u6578\u64da\u9032\u884c\u9ad8\u6548\u7684\u641c\u7d22\uff0c\u7279\u5225\u9069\u5408\u65bc\u5927\u6587\u672c\u5b57\u6bb5\u3002\u5b83\u652f\u6301\u81ea\u7136\u8a9e\u8a00\u641c\u7d22\uff0c\u4e26\u4e14\u53ef\u4ee5\u7528\u65bc\u67e5\u8a62\u5305\u542b\u7279\u5b9a\u55ae\u8a5e\u7684\u8a18\u9304\u3002<\/p>\n<pre><code>CREATE TABLE articles (\n    id INT AUTO_INCREMENT PRIMARY KEY,\n    content TEXT,\n    FULLTEXT (content)\n);<\/code><\/pre>\n<h3 id=\"5-%e7%a9%ba%e9%96%93%e7%b4%a2%e5%bc%95%ef%bc%88spatial-index%ef%bc%89-kcQeizdzWC\">5. \u7a7a\u9593\u7d22\u5f15\uff08Spatial Index\uff09<\/h3>\n<p>\u7a7a\u9593\u7d22\u5f15\u5c08\u9580\u7528\u65bc\u5730\u7406\u6578\u64da\u985e\u578b\uff0c\u80fd\u5920\u52a0\u901f\u7a7a\u9593\u67e5\u8a62\u3002\u9019\u985e\u7d22\u5f15\u901a\u5e38\u7528\u65bc\u8655\u7406\u5730\u7406\u4fe1\u606f\u7cfb\u7d71\uff08GIS\uff09\u4e2d\u7684\u6578\u64da\u3002<\/p>\n<pre><code>CREATE SPATIAL INDEX idx_location ON locations (coordinates);<\/code><\/pre>\n<h2 id=\"%e7%b4%a2%e5%bc%95%e7%9a%84%e5%84%aa%e7%bc%ba%e9%bb%9e-kcQeizdzWC\">\u7d22\u5f15\u7684\u512a\u7f3a\u9ede<\/h2>\n<p>\u96d6\u7136\u7d22\u5f15\u80fd\u5920\u986f\u8457\u63d0\u9ad8\u67e5\u8a62\u6027\u80fd\uff0c\u4f46\u4e5f\u6709\u5176\u7f3a\u9ede\u3002\u4ee5\u4e0b\u662f\u7d22\u5f15\u7684\u4e00\u4e9b\u512a\u7f3a\u9ede\uff1a<\/p>\n<ul>\n<li><strong>\u512a\u9ede\uff1a<\/strong>\n<ul>\n<li>\u52a0\u901f\u67e5\u8a62\u901f\u5ea6\uff0c\u7279\u5225\u662f\u5728\u5927\u6578\u64da\u96c6\u4e0a\u3002<\/li>\n<li>\u63d0\u9ad8\u6578\u64da\u6aa2\u7d22\u6548\u7387\uff0c\u6e1b\u5c11\u67e5\u8a62\u6642\u9593\u3002<\/li>\n<\/ul>\n<\/li>\n<li><strong>\u7f3a\u9ede\uff1a<\/strong>\n<ul>\n<li>\u589e\u52a0\u6578\u64da\u5eab\u7684\u5b58\u5132\u9700\u6c42\uff0c\u56e0\u70ba\u7d22\u5f15\u672c\u8eab\u4e5f\u4f54\u7528\u7a7a\u9593\u3002<\/li>\n<li>\u5728\u63d2\u5165\u3001\u66f4\u65b0\u6216\u522a\u9664\u6578\u64da\u6642\uff0c\u7d22\u5f15\u9700\u8981\u88ab\u66f4\u65b0\uff0c\u9019\u53ef\u80fd\u6703\u5f71\u97ff\u6027\u80fd\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h2 id=\"%e7%b5%90%e8%ab%96-kcQeizdzWC\">\u7d50\u8ad6<\/h2>\n<p>MySQL\u63d0\u4f9b\u4e86\u591a\u7a2e\u7d22\u5f15\u985e\u578b\uff0c\u4ee5\u6eff\u8db3\u4e0d\u540c\u7684\u6578\u64da\u6aa2\u7d22\u9700\u6c42\u3002\u9078\u64c7\u5408\u9069\u7684\u7d22\u5f15\u985e\u578b\u53ef\u4ee5\u986f\u8457\u63d0\u9ad8\u6578\u64da\u5eab\u7684\u6027\u80fd\u3002\u5728\u8a2d\u8a08\u6578\u64da\u5eab\u6642\uff0c\u61c9\u6839\u64da\u5177\u9ad4\u7684\u61c9\u7528\u5834\u666f\u548c\u67e5\u8a62\u9700\u6c42\u4f86\u9078\u64c7\u5408\u9069\u7684\u7d22\u5f15\u985e\u578b\uff0c\u4ee5\u9054\u5230\u6700\u4f73\u7684\u6027\u80fd\u6548\u679c\u3002<\/p>\n<p>\u5982\u9700\u4e86\u89e3\u66f4\u591a\u95dc\u65bc\u6578\u64da\u5eab\u7ba1\u7406\u548c\u512a\u5316\u7684\u8cc7\u8a0a\uff0c\u60a8\u53ef\u4ee5\u8a2a\u554f<a href=\"https:\/\/server.hk\">Server.HK<\/a>\uff0c\u6211\u5011\u63d0\u4f9b\u5404\u7a2e<a href=\"https:\/\/server.hk\">VPS<\/a>\u548c<a href=\"https:\/\/server.hk\">\u9999\u6e2f\u4f3a\u670d\u5668<\/a>\u89e3\u6c7a\u65b9\u6848\uff0c\u5e6b\u52a9\u60a8\u63d0\u5347\u696d\u52d9\u6548\u7387\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6df1\u5165\u4e86\u89e3MySQL\u7d22\u5f15\u985e\u578b\uff0c\u63a2\u7d22\u4e0d\u540c\u7d22\u5f15\u7684\u7279\u9ede\u8207\u61c9\u7528\uff0c\u63d0\u5347\u6578\u64da\u67e5\u8a62\u6548\u7387\uff0c\u512a\u5316\u6578\u64da\u5eab\u6027\u80fd\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-153789","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/153789","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=153789"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/153789\/revisions"}],"predecessor-version":[{"id":153790,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/153789\/revisions\/153790"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=153789"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=153789"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=153789"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}