{"id":199649,"date":"2025-05-06T10:14:43","date_gmt":"2025-05-06T02:14:43","guid":{"rendered":"https:\/\/server.hk\/cnblog\/199649\/"},"modified":"2025-05-06T10:14:43","modified_gmt":"2025-05-06T02:14:43","slug":"%e4%b8%8d%e5%90%8c%e7%b1%bb%e5%9e%8b%e7%9a%84mysql%e7%b4%a2%e5%bc%95%e4%bb%8b%e7%bb%8d","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/199649\/","title":{"rendered":"\u4e0d\u540c\u7c7b\u578b\u7684MySQL\u7d22\u5f15\u4ecb\u7ecd"},"content":{"rendered":"<p><b><\/b> <\/p>\n<h1>\u4e0d\u540c\u7c7b\u578b\u7684MySQL\u7d22\u5f15\u4ecb\u7ecd<\/h1>\n<p>\u6b22\u8fce\u5404\u4f4d\u5c0f\u4f19\u4f34\u6765\u5230\u4e3b\u673a\u5b9d\u8d1d\uff0c\u76f8\u805a\u4e8e\u6b64\u90fd\u662f\u7f18\u54c8\u54c8\u54c8\uff01\u4eca\u5929\u6211\u7ed9\u5927\u5bb6\u5e26\u6765\uff0c\u8fd9\u7bc7\u6587\u7ae0\u4e3b\u8981\u8bb2\u5230\u7b49\u7b49\u77e5\u8bc6\uff0c\u5982\u679c\u4f60\u5bf9\u76f8\u5173\u7684\u77e5\u8bc6\u975e\u5e38\u611f\u5174\u8da3\u6216\u8005\u6b63\u5728\u81ea\u5b66\uff0c\u90fd\u53ef\u4ee5\u5173\u6ce8\u6211\uff0c\u6211\u4f1a\u6301\u7eed\u66f4\u65b0\u76f8\u5173\u6587\u7ae0\uff01\u5f53\u7136\uff0c\u6709\u4ec0\u4e48\u5efa\u8bae\u4e5f\u6b22\u8fce\u5728\u8bc4\u8bba\u7559\u8a00\u63d0\u51fa\uff01\u4e00\u8d77\u5b66\u4e60\uff01<\/p>\n<p>MySQL\u7d22\u5f15\u662f\u63d0\u9ad8\u67e5\u8be2\u6548\u7387\u7684\u91cd\u8981\u5de5\u5177\uff0c\u5b83\u53ef\u4ee5\u52a0\u5feb\u6570\u636e\u68c0\u7d22\u901f\u5ea6\u3002\u4e0b\u9762\u8be6\u7ec6\u4ecb\u7ecd\u4e86MySQL\u4e2d\u7684\u51e0\u79cd\u5e38\u89c1\u7d22\u5f15\uff0c\u5e76\u63d0\u4f9b\u4e86\u5177\u4f53\u7684\u4ee3\u7801\u793a\u4f8b\u3002<\/p>\n<ol>\n<li>\u4e3b\u952e\u7d22\u5f15\uff08Primary Key Index\uff09\uff1a<br \/>\u4e3b\u952e\u7d22\u5f15\u662f\u4e00\u79cd\u7279\u6b8a\u7684\u552f\u4e00\u7d22\u5f15\uff0c\u7528\u4e8e\u552f\u4e00\u6807\u8bc6\u4e00\u6761\u8bb0\u5f55\u3002\u6bcf\u4e2a\u8868\u53ea\u80fd\u6709\u4e00\u4e2a\u4e3b\u952e\uff0c\u4e3b\u952e\u7d22\u5f15\u7684\u503c\u4e0d\u80fd\u4e3aNULL\u3002<\/li>\n<\/ol>\n<p>\u793a\u4f8b\u4ee3\u7801\uff1a<br \/>CREATE TABLE student (<br \/> id INT PRIMARY KEY,<br \/> name VARCHAR(50),<br \/> age INT<br \/>);<\/p>\n<ol>\n<li>\u552f\u4e00\u7d22\u5f15\uff08Unique Index\uff09\uff1a<br \/>\u552f\u4e00\u7d22\u5f15\u4fdd\u8bc1\u4e86\u7d22\u5f15\u5217\u4e2d\u7684\u503c\u662f\u552f\u4e00\u7684\uff0c\u53ef\u4ee5\u52a0\u901f\u5bf9\u8be5\u5217\u7684\u67e5\u627e\u548c\u66f4\u65b0\u64cd\u4f5c\u3002<\/li>\n<\/ol>\n<p>\u793a\u4f8b\u4ee3\u7801\uff1a<br \/>CREATE TABLE student (<br \/> id INT,<br \/> name VARCHAR(50),<br \/> age INT,<br \/> UNIQUE INDEX idx_name (name)<br \/>);<\/p>\n<ol>\n<li>\u666e\u901a\u7d22\u5f15\uff08Normal Index\uff09\uff1a<br \/>\u666e\u901a\u7d22\u5f15\u662f\u6700\u5e38\u89c1\u7684\u7d22\u5f15\u7c7b\u578b\uff0c\u7528\u4e8e\u52a0\u901f\u5bf9\u5217\u7684\u67e5\u627e\u548c\u6392\u5e8f\u64cd\u4f5c\u3002<\/li>\n<\/ol>\n<p>\u793a\u4f8b\u4ee3\u7801\uff1a<br \/>CREATE TABLE student (<br \/> id INT,<br \/> name VARCHAR(50),<br \/> age INT,<br \/> INDEX idx_age (age)<br \/>);<\/p>\n<ol>\n<li>\u5168\u6587\u7d22\u5f15\uff08Fulltext Index\uff09\uff1a<br \/>\u5168\u6587\u7d22\u5f15\u7528\u4e8e\u5728\u6587\u672c\u5b57\u6bb5\u4e0a\u6267\u884c\u5168\u6587\u641c\u7d22\uff0c\u53ef\u4ee5\u63d0\u9ad8\u6587\u672c\u641c\u7d22\u7684\u6548\u7387\u3002<\/li>\n<\/ol>\n<p>\u793a\u4f8b\u4ee3\u7801\uff1a<br \/>CREATE TABLE articles (<br \/> id INT,<br \/> title VARCHAR(100),<br \/> content TEXT,<br \/> FULLTEXT INDEX idx_content (content)<br \/>);<\/p>\n<ol>\n<li>\u7ec4\u5408\u7d22\u5f15\uff08Composite Index\uff09\uff1a<br \/>\u7ec4\u5408\u7d22\u5f15\u662f\u7531\u591a\u4e2a\u5217\u7ec4\u6210\u7684\u7d22\u5f15\uff0c\u53ef\u4ee5\u63d0\u9ad8\u591a\u4e2a\u5217\u7ec4\u5408\u6761\u4ef6\u7684\u67e5\u8be2\u6548\u7387\u3002<\/li>\n<\/ol>\n<p>\u793a\u4f8b\u4ee3\u7801\uff1a<br \/>CREATE TABLE book (<br \/> id INT,<br \/> title VARCHAR(100),<br \/> author VARCHAR(50),<br \/> price DECIMAL(8,2),<br \/> INDEX idx_title_author_price (title, author, price)<br \/>);<\/p>\n<ol>\n<li>\u7a7a\u95f4\u7d22\u5f15\uff08Spatial Index\uff09\uff1a<br \/>\u7a7a\u95f4\u7d22\u5f15\u7528\u4e8e\u52a0\u901f\u5bf9\u7a7a\u95f4\u6570\u636e\u8fdb\u884c\u67e5\u8be2\uff0c\u5982\u5730\u7406\u4f4d\u7f6e\u4fe1\u606f\u3002<\/li>\n<\/ol>\n<p>\u793a\u4f8b\u4ee3\u7801\uff1a<br \/>CREATE TABLE locations (<br \/> id INT,<br \/> name VARCHAR(100),<br \/> location POINT,<br \/> SPATIAL INDEX idx_location (location)<br \/>);<\/p>\n<ol>\n<li>\u54c8\u5e0c\u7d22\u5f15\uff08Hash Index\uff09\uff1a<br \/>\u54c8\u5e0c\u7d22\u5f15\u4f7f\u7528\u54c8\u5e0c\u7b97\u6cd5\u5c06\u7d22\u5f15\u5217\u7684\u503c\u8f6c\u6362\u4e3a\u54c8\u5e0c\u503c\uff0c\u53ef\u4ee5\u52a0\u901f\u7b49\u503c\u67e5\u8be2\uff0c\u4f46\u4e0d\u652f\u6301\u8303\u56f4\u67e5\u8be2\u3002<\/li>\n<\/ol>\n<p>\u793a\u4f8b\u4ee3\u7801\uff1a<br \/>CREATE TABLE user (<br \/> id INT,<br \/> name VARCHAR(50),<br \/> age INT,<br \/> HASH INDEX idx_age (age)<br \/>);<\/p>\n<p>\u4ee5\u4e0a\u662fMySQL\u4e2d\u5e38\u7528\u7684\u51e0\u79cd\u7d22\u5f15\u7c7b\u578b\uff0c\u4e0d\u540c\u7684\u7d22\u5f15\u7c7b\u578b\u9002\u5408\u4e0d\u540c\u7684\u67e5\u8be2\u573a\u666f\u3002\u5728\u5b9e\u9645\u5e94\u7528\u4e2d\uff0c\u6839\u636e\u5177\u4f53\u7684\u9700\u6c42\u548c\u6570\u636e\u7279\u70b9\u9009\u62e9\u5408\u9002\u7684\u7d22\u5f15\u7c7b\u578b\u53ef\u4ee5\u6709\u6548\u63d0\u9ad8\u6570\u636e\u5e93\u7684\u67e5\u8be2\u6548\u7387\u3002<\/p>\n<p>\u6587\u4e2d\u5173\u4e8e\u5168\u6587\u7d22\u5f15,\u54c8\u5e0c\u7d22\u5f15\u7684\u77e5\u8bc6\u4ecb\u7ecd\uff0c\u5e0c\u671b\u5bf9\u4f60\u7684\u5b66\u4e60\u6709\u6240\u5e2e\u52a9\uff01\u82e5\u662f\u53d7\u76ca\u532a\u6d45\uff0c\u90a3\u5c31\u52a8\u52a8\u9f20\u6807\u6536\u85cf\u8fd9\u7bc7\u300a\u4e0d\u540c\u7c7b\u578b\u7684MySQL\u7d22\u5f15\u4ecb\u7ecd\u300b\u6587\u7ae0\u5427\uff0c\u4e5f\u53ef\u5173\u6ce8\u4e3b\u673a\u5b9d\u8d1d\u516c\u4f17\u53f7\u4e86\u89e3\u76f8\u5173\u6280\u672f\u6587\u7ae0\u3002<\/p>\n<dl>\n<dt>\n <\/dt>\n<\/dl>\n","protected":false},"excerpt":{"rendered":"<p>\u4e0d\u540c\u7c7b\u578b\u7684MySQL\u7d22\u5f15\u4ecb\u7ecd \u6b22&#46;&#46;&#46;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-199649","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/199649","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"}],"author":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=199649"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/199649\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=199649"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=199649"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=199649"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}