{"id":200085,"date":"2025-05-06T11:08:25","date_gmt":"2025-05-06T03:08:25","guid":{"rendered":"https:\/\/server.hk\/cnblog\/200085\/"},"modified":"2025-05-06T11:08:25","modified_gmt":"2025-05-06T03:08:25","slug":"mysql%e4%b8%8d%e5%90%8c%e7%89%88%e6%9c%ac%e7%9a%84%e6%af%94%e8%be%83","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/200085\/","title":{"rendered":"MySQL\u4e0d\u540c\u7248\u672c\u7684\u6bd4\u8f83"},"content":{"rendered":"<p><b><\/b> <\/p>\n<h1>MySQL\u4e0d\u540c\u7248\u672c\u7684\u6bd4\u8f83<\/h1>\n<p>MySQL\u662f\u4e00\u79cd\u5e7f\u6cdb\u5e94\u7528\u4e8e\u6570\u636e\u7ba1\u7406\u7684\u5f00\u6e90\u5173\u7cfb\u578b\u6570\u636e\u5e93\u7ba1\u7406\u7cfb\u7edf\u3002\u968f\u7740\u65f6\u95f4\u7684\u63a8\u79fb\uff0cMySQL\u63a8\u51fa\u4e86\u591a\u4e2a\u7248\u672c\uff0c\u6bcf\u4e2a\u7248\u672c\u90fd\u5f15\u5165\u4e86\u65b0\u7684\u7279\u6027\u548c\u6027\u80fd\u4f18\u5316\u3002\u672c\u6587\u5c06\u6df1\u5165\u6bd4\u8f83\u4e0d\u540c\u7248\u672c\u7684MySQL\uff0c\u5305\u62ecMySQL 5.7\u548cMySQL 8.0\uff0c\u91cd\u70b9\u4ecb\u7ecd\u5176JSON\u6570\u636e\u7c7b\u578b\u652f\u6301\u3001\u7a97\u53e3\u51fd\u6570\u3001\u5168\u5c40\u4e8b\u52a1ID\u548c\u6267\u884c\u8ba1\u5212\u751f\u6210\u65b9\u9762\u7684\u5dee\u5f02\u3002\u901a\u8fc7\u4ee3\u7801\u793a\u4f8b\uff0c\u8bfb\u8005\u5c06\u6df1\u5165\u4e86\u89e3\u6bcf\u4e2a\u7248\u672c\u7684\u7279\u6027\u548c\u7528\u6cd5\uff0c\u4ece\u800c\u66f4\u597d\u5730\u5229\u7528MySQL\u8fdb\u884c\u6570\u636e\u5904\u7406\u548c\u5e94\u7528\u7a0b\u5e8f\u5f00\u53d1\u3002<\/p>\n<p>MySQL\u662f\u4e00\u79cd\u6d41\u884c\u7684\u5f00\u6e90\u5173\u7cfb\u578b\u6570\u636e\u5e93\u7ba1\u7406\u7cfb\u7edf\uff0c\u88ab\u5e7f\u6cdb\u5e94\u7528\u4e8e\u7f51\u7ad9\u5f00\u53d1\u3001\u6570\u636e\u5206\u6790\u548c\u5176\u4ed6\u6570\u636e\u5904\u7406\u4efb\u52a1\u4e2d\u3002MySQL\u6709\u591a\u4e2a\u7248\u672c\uff0c\u6bcf\u4e2a\u7248\u672c\u90fd\u6709\u5176\u7279\u70b9\u548c\u4f18\u70b9\u3002\u672c\u6587\u5c06\u4ecb\u7ecdMySQL\u7684\u4e0d\u540c\u7248\u672c\uff0c\u5e76\u7ed9\u51fa\u5177\u4f53\u7684\u4ee3\u7801\u793a\u4f8b\uff0c\u5e2e\u52a9\u8bfb\u8005\u66f4\u597d\u5730\u4e86\u89e3MySQL\u7684\u7279\u6027\u548c\u7528\u6cd5\u3002<\/p>\n<p>\u4e00\u3001MySQL 5.7\u7248\u672c<\/p>\n<p>MySQL 5.7\u662fMySQL\u8fd9\u4e2a\u6570\u636e\u5e93\u7ba1\u7406\u7cfb\u7edf\u7684\u4e00\u4e2a\u91cc\u7a0b\u7891\u7248\u672c\uff0c\u5f15\u5165\u4e86\u8bb8\u591a\u91cd\u8981\u7684\u6539\u8fdb\u548c\u65b0\u7279\u6027\u3002\u5176\u4e2d\u6700\u7a81\u51fa\u7684\u7279\u70b9\u662f\u652f\u6301JSON\u6570\u636e\u7c7b\u578b\u548c\u65b0\u7684\u5b89\u5168\u7279\u6027\u3002\u4ee5\u4e0b\u662f\u4e00\u4e2a\u7b80\u5355\u7684\u4ee3\u7801\u793a\u4f8b\uff0c\u6f14\u793a\u5982\u4f55\u5728MySQL 5.7\u4e2d\u521b\u5efa\u4e00\u4e2a\u5305\u542bJSON\u5b57\u6bb5\u7684\u8868\u683c\uff0c\u5e76\u8fdb\u884c\u76f8\u5e94\u64cd\u4f5c\uff1a<\/p>\n<pre>-- \u521b\u5efa\u4e00\u4e2a\u5305\u542bJSON\u5b57\u6bb5\u7684\u8868\u683c\nCREATE TABLE users (\n    id INT PRIMARY KEY,\n    name VARCHAR(50),\n    data JSON\n);\n\n-- \u63d2\u5165\u4e00\u6761\u5305\u542bJSON\u6570\u636e\u7684\u8bb0\u5f55\nINSERT INTO users (id, name, data) VALUES (1, 'Alice', '{\"age\": 25, \"city\": \"Shanghai\"}');\n\n-- \u67e5\u8be2JSON\u5b57\u6bb5\u6570\u636e\nSELECT data-&gt;\"$.age\" AS age, data-&gt;\"$.city\" AS city FROM users WHERE id = 1;<\/pre>\n<p>\u4e0a\u9762\u7684\u793a\u4f8b\u4ee3\u7801\u6f14\u793a\u4e86\u5982\u4f55\u5229\u7528MySQL 5.7\u7684JSON\u6570\u636e\u7c7b\u578b\u6765\u5b58\u50a8\u548c\u64cd\u4f5cJSON\u6570\u636e\u3002\u8fd9\u5bf9\u4e8e\u5b58\u50a8\u534a\u7ed3\u6784\u5316\u6570\u636e\u975e\u5e38\u6709\u7528\uff0c\u4f7f\u5f97\u6570\u636e\u5e93\u80fd\u591f\u66f4\u597d\u5730\u652f\u6301\u5404\u79cd\u6570\u636e\u683c\u5f0f\u3002<\/p>\n<p>\u4e8c\u3001MySQL 8.0\u7248\u672c<\/p>\n<p>MySQL 8.0\u662fMySQL\u7684\u6700\u65b0\u7248\u672c\uff0c\u5e26\u6765\u4e86\u8bb8\u591a\u521b\u65b0\u7684\u7279\u6027\u548c\u6027\u80fd\u4f18\u5316\u3002\u5176\u4e2d\u6700\u503c\u5f97\u5173\u6ce8\u7684\u662f\u539f\u751f\u7684\u7a97\u53e3\u51fd\u6570\u652f\u6301\u3001\u5168\u5c40\u4e8b\u52a1ID\u548c\u66f4\u5feb\u7684\u6267\u884c\u8ba1\u5212\u751f\u6210\u3002\u4ee5\u4e0b\u662f\u4e00\u4e2a\u4f7f\u7528\u7a97\u53e3\u51fd\u6570\u7684\u793a\u4f8b\u4ee3\u7801\uff1a<\/p>\n<pre>-- \u521b\u5efa\u4e00\u4e2a\u5305\u542b\u5458\u5de5\u53ca\u5176\u9500\u552e\u989d\u7684\u8868\u683c\nCREATE TABLE employees_sales (\n    employee_id INT,\n    sales_amount DECIMAL(10, 2)\n);\n\n-- \u4f7f\u7528\u7a97\u53e3\u51fd\u6570\u8ba1\u7b97\u6bcf\u4f4d\u5458\u5de5\u7684\u9500\u552e\u989d\u6392\u540d\nSELECT employee_id, sales_amount,\n       RANK() OVER (ORDER BY sales_amount DESC) AS sales_rank\nFROM employees_sales;<\/pre>\n<p>\u4e0a\u9762\u7684\u4ee3\u7801\u5c55\u793a\u4e86\u5982\u4f55\u4f7f\u7528MySQL 8.0\u7684\u7a97\u53e3\u51fd\u6570\u6765\u8ba1\u7b97\u5458\u5de5\u7684\u9500\u552e\u989d\u6392\u540d\uff0c\u8fd9\u662fMySQL 8.0\u5f15\u5165\u7684\u91cd\u8981\u529f\u80fd\u4e4b\u4e00\uff0c\u65b9\u4fbf\u5f00\u53d1\u4eba\u5458\u8fdb\u884c\u590d\u6742\u7684\u6570\u636e\u5206\u6790\u548c\u5904\u7406\u3002<\/p>\n<p>\u901a\u8fc7\u4ee5\u4e0a\u793a\u4f8b\u4ee3\u7801\uff0c\u6211\u4eec\u53ef\u4ee5\u770b\u5230\u4e0d\u540c\u7248\u672c\u7684MySQL\u5728\u529f\u80fd\u548c\u6027\u80fd\u65b9\u9762\u7684\u5dee\u5f02\uff0c\u6bcf\u4e2a\u7248\u672c\u90fd\u6709\u81ea\u5df1\u72ec\u7279\u7684\u7279\u70b9\u548c\u4f18\u52bf\u3002\u6df1\u5165\u4e86\u89e3MySQL\u7684\u4e0d\u540c\u7248\u672c\uff0c\u638c\u63e1\u5176\u7279\u6027\u548c\u7528\u6cd5\uff0c\u5c06\u6709\u52a9\u4e8e\u5f00\u53d1\u4eba\u5458\u66f4\u597d\u5730\u5229\u7528MySQL\u6765\u6784\u5efa\u5e94\u7528\u7a0b\u5e8f\u548c\u8fdb\u884c\u6570\u636e\u5904\u7406\u3002MySQL\u7684\u53d1\u5c55\u4e00\u76f4\u5728\u4e0d\u65ad\u63a8\u8fdb\uff0c\u672a\u6765\u8fd8\u4f1a\u6709\u66f4\u591a\u65b0\u7684\u7279\u6027\u548c\u6539\u8fdb\uff0c\u6211\u4eec\u53ef\u4ee5\u6301\u7eed\u5173\u6ce8\u5e76\u5b66\u4e60\u6700\u65b0\u7248\u672c\u7684MySQL\uff0c\u4ee5\u66f4\u597d\u5730\u5e94\u7528\u4e8e\u5b9e\u9645\u5de5\u4f5c\u4e2d\u3002<\/p>\n<p>\u5230\u8fd9\u91cc\uff0c\u6211\u4eec\u4e5f\u5c31\u8bb2\u5b8c\u4e86\u300aMySQL\u4e0d\u540c\u7248\u672c\u7684\u6bd4\u8f83\u300b\u7684\u5185\u5bb9\u4e86\u3002\u4e2a\u4eba\u8ba4\u4e3a\uff0c\u57fa\u7840\u77e5\u8bc6\u7684\u5b66\u4e60\u548c\u5de9\u56fa\uff0c\u662f\u4e3a\u4e86\u66f4\u597d\u7684\u5c06\u5176\u8fd0\u7528\u5230\u9879\u76ee\u4e2d\uff0c\u6b22\u8fce\u5173\u6ce8\u4e3b\u673a\u5b9d\u8d1d\u516c\u4f17\u53f7\uff0c\u5e26\u4f60\u4e86\u89e3\u66f4\u591a\u5173\u4e8eMySql\u7248\u672c,\u7248\u672c\u6bd4\u8f83,\u7248\u672c\u7279\u6027\u7684\u77e5\u8bc6\u70b9\uff01<\/p>\n<dl>\n<dt>\n <\/dt>\n<\/dl>\n","protected":false},"excerpt":{"rendered":"<p>MySQL\u4e0d\u540c\u7248\u672c\u7684\u6bd4\u8f83 MyS&#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-200085","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/200085","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=200085"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/200085\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=200085"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=200085"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=200085"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}