{"id":179836,"date":"2024-11-09T05:12:20","date_gmt":"2024-11-08T21:12:20","guid":{"rendered":"https:\/\/server.hk\/cnblog\/179836\/"},"modified":"2024-11-09T05:12:20","modified_gmt":"2024-11-08T21:12:20","slug":"%e5%a6%82%e4%bd%95%e5%9c%a8%e6%95%b8%e6%93%9a%e5%ba%ab%e4%b8%ad%e5%ad%98%e5%84%b2%e6%95%b8%e7%b5%84%e6%95%b8%e6%93%9a%ef%bc%9f-%e6%95%b8%e7%b5%84%e5%ad%98%e5%85%a5%e6%95%b8%e6%93%9a%e5%ba%ab%e7%9a%84","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/179836\/","title":{"rendered":"\u5982\u4f55\u5728\u6578\u64da\u5eab\u4e2d\u5b58\u5132\u6578\u7d44\u6578\u64da\uff1f (\u6578\u7d44\u5b58\u5165\u6578\u64da\u5eab\u7684\u6578\u64da\u985e\u578b)"},"content":{"rendered":"<h1 id=\"%e5%a6%82%e4%bd%95%e5%9c%a8%e6%95%b8%e6%93%9a%e5%ba%ab%e4%b8%ad%e5%ad%98%e5%84%b2%e6%95%b8%e7%b5%84%e6%95%b8%e6%93%9a%ef%bc%9f-%e6%95%b8%e7%b5%84%e5%ad%98%e5%85%a5%e6%95%b8%e6%93%9a%e5%ba%ab%e7%9a%84-wijznDkjQB\">\u5982\u4f55\u5728\u6578\u64da\u5eab\u4e2d\u5b58\u5132\u6578\u7d44\u6578\u64da\uff1f (\u6578\u7d44\u5b58\u5165\u6578\u64da\u5eab\u7684\u6578\u64da\u985e\u578b)<\/h1>\n<p>\u5728\u73fe\u4ee3\u61c9\u7528\u7a0b\u5e8f\u958b\u767c\u4e2d\uff0c\u6578\u64da\u5eab\u7684\u4f7f\u7528\u5df2\u7d93\u8b8a\u5f97\u7121\u8655\u4e0d\u5728\u3002\u96a8\u8457\u6578\u64da\u7d50\u69cb\u7684\u591a\u6a23\u5316\uff0c\u958b\u767c\u8005\u7d93\u5e38\u9700\u8981\u5728\u6578\u64da\u5eab\u4e2d\u5b58\u5132\u6578\u7d44\u6578\u64da\u3002\u9019\u7bc7\u6587\u7ae0\u5c07\u63a2\u8a0e\u5982\u4f55\u5728\u6578\u64da\u5eab\u4e2d\u6709\u6548\u5730\u5b58\u5132\u6578\u7d44\u6578\u64da\uff0c\u4e26\u4ecb\u7d39\u5e7e\u7a2e\u5e38\u898b\u7684\u6578\u64da\u985e\u578b\u548c\u65b9\u6cd5\u3002<\/p>\n<h2 id=\"%e6%95%b8%e7%b5%84%e6%95%b8%e6%93%9a%e7%9a%84%e5%ad%98%e5%84%b2%e9%9c%80%e6%b1%82-wijznDkjQB\">\u6578\u7d44\u6578\u64da\u7684\u5b58\u5132\u9700\u6c42<\/h2>\n<p>\u6578\u7d44\u662f\u4e00\u7a2e\u53ef\u4ee5\u5b58\u5132\u591a\u500b\u503c\u7684\u6578\u64da\u7d50\u69cb\uff0c\u901a\u5e38\u7528\u65bc\u8868\u793a\u4e00\u7d44\u76f8\u95dc\u7684\u6578\u64da\u3002\u5728\u6578\u64da\u5eab\u4e2d\uff0c\u5b58\u5132\u6578\u7d44\u6578\u64da\u7684\u9700\u6c42\u4e3b\u8981\u4f86\u81ea\u65bc\u4ee5\u4e0b\u5e7e\u500b\u65b9\u9762\uff1a<\/p>\n<ul>\n<li>\u9700\u8981\u5b58\u5132\u591a\u500b\u76f8\u95dc\u7684\u6578\u64da\u9805\uff0c\u4f8b\u5982\u7528\u6236\u7684\u8208\u8da3\u611b\u597d\u3001\u7522\u54c1\u7684\u6a19\u7c64\u7b49\u3002<\/li>\n<li>\u9700\u8981\u63d0\u9ad8\u67e5\u8a62\u6548\u7387\uff0c\u907f\u514d\u591a\u6b21\u67e5\u8a62\u540c\u4e00\u6578\u64da\u3002<\/li>\n<li>\u9700\u8981\u7c21\u5316\u6578\u64da\u7d50\u69cb\uff0c\u6e1b\u5c11\u8868\u7684\u6578\u91cf\u3002<\/li>\n<\/ul>\n<h2 id=\"%e6%95%b8%e6%93%9a%e5%ba%ab%e4%b8%ad%e5%ad%98%e5%84%b2%e6%95%b8%e7%b5%84%e7%9a%84%e5%b8%b8%e8%a6%8b%e6%96%b9%e6%b3%95-wijznDkjQB\">\u6578\u64da\u5eab\u4e2d\u5b58\u5132\u6578\u7d44\u7684\u5e38\u898b\u65b9\u6cd5<\/h2>\n<h3 id=\"1-%e4%bd%bf%e7%94%a8json%e6%95%b8%e6%93%9a%e9%a1%9e%e5%9e%8b-wijznDkjQB\">1. \u4f7f\u7528JSON\u6578\u64da\u985e\u578b<\/h3>\n<p>\u8a31\u591a\u73fe\u4ee3\u6578\u64da\u5eab\uff08\u5982PostgreSQL\u548cMySQL\uff09\u652f\u6301JSON\u6578\u64da\u985e\u578b\uff0c\u9019\u4f7f\u5f97\u5b58\u5132\u6578\u7d44\u8b8a\u5f97\u66f4\u52a0\u65b9\u4fbf\u3002\u958b\u767c\u8005\u53ef\u4ee5\u5c07\u6578\u7d44\u8f49\u63db\u70baJSON\u683c\u5f0f\uff0c\u7136\u5f8c\u5c07\u5176\u5b58\u5132\u5728\u6578\u64da\u5eab\u4e2d\u3002<\/p>\n<pre><code>INSERT INTO users (name, interests) VALUES ('Alice', '[\"reading\", \"traveling\", \"cooking\"]');\n<\/code><\/pre>\n<p>\u5728\u67e5\u8a62\u6642\uff0c\u53ef\u4ee5\u4f7f\u7528JSON\u51fd\u6578\u4f86\u63d0\u53d6\u6578\u7d44\u4e2d\u7684\u5143\u7d20\u3002\u4f8b\u5982\uff0c\u5728PostgreSQL\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u67e5\u8a62\u4f86\u7372\u53d6\u7528\u6236\u7684\u8208\u8da3\uff1a<\/p>\n<pre><code>SELECT jsonb_array_elements_text(interests) FROM users WHERE name = 'Alice';\n<\/code><\/pre>\n<h3 id=\"2-%e4%bd%bf%e7%94%a8%e9%97%9c%e8%81%af%e8%a1%a8-wijznDkjQB\">2. \u4f7f\u7528\u95dc\u806f\u8868<\/h3>\n<p>\u53e6\u4e00\u7a2e\u5e38\u898b\u7684\u65b9\u6cd5\u662f\u4f7f\u7528\u95dc\u806f\u8868\u4f86\u5b58\u5132\u6578\u7d44\u6578\u64da\u3002\u9019\u7a2e\u65b9\u6cd5\u6d89\u53ca\u5230\u5275\u5efa\u4e00\u500b\u65b0\u7684\u8868\u4f86\u5b58\u5132\u6578\u7d44\u7684\u6bcf\u500b\u5143\u7d20\uff0c\u4e26\u901a\u904e\u5916\u9375\u8207\u4e3b\u8868\u95dc\u806f\u3002<\/p>\n<pre><code>CREATE TABLE users (\n    id SERIAL PRIMARY KEY,\n    name VARCHAR(100)\n);\n\nCREATE TABLE user_interests (\n    user_id INT REFERENCES users(id),\n    interest VARCHAR(100)\n);\n<\/code><\/pre>\n<p>\u7136\u5f8c\uff0c\u53ef\u4ee5\u63d2\u5165\u7528\u6236\u7684\u8208\u8da3\uff1a<\/p>\n<pre><code>INSERT INTO users (name) VALUES ('Alice');\nINSERT INTO user_interests (user_id, interest) VALUES (1, 'reading'), (1, 'traveling'), (1, 'cooking');\n<\/code><\/pre>\n<h3 id=\"3-%e4%bd%bf%e7%94%a8%e6%95%b8%e7%b5%84%e6%95%b8%e6%93%9a%e9%a1%9e%e5%9e%8b-wijznDkjQB\">3. \u4f7f\u7528\u6578\u7d44\u6578\u64da\u985e\u578b<\/h3>\n<p>\u67d0\u4e9b\u6578\u64da\u5eab\uff08\u5982PostgreSQL\uff09\u652f\u6301\u539f\u751f\u7684\u6578\u7d44\u6578\u64da\u985e\u578b\u3002\u9019\u4f7f\u5f97\u958b\u767c\u8005\u53ef\u4ee5\u76f4\u63a5\u5728\u8868\u4e2d\u5b9a\u7fa9\u6578\u7d44\u985e\u578b\u7684\u5217\u3002<\/p>\n<pre><code>CREATE TABLE users (\n    id SERIAL PRIMARY KEY,\n    name VARCHAR(100),\n    interests TEXT[]\n);\n<\/code><\/pre>\n<p>\u63d2\u5165\u6578\u64da\u6642\uff0c\u53ef\u4ee5\u76f4\u63a5\u4f7f\u7528\u6578\u7d44\u8a9e\u6cd5\uff1a<\/p>\n<pre><code>INSERT INTO users (name, interests) VALUES ('Alice', '{\"reading\", \"traveling\", \"cooking\"}');\n<\/code><\/pre>\n<h2 id=\"%e9%81%b8%e6%93%87%e5%90%88%e9%81%a9%e7%9a%84%e6%96%b9%e6%b3%95-wijznDkjQB\">\u9078\u64c7\u5408\u9069\u7684\u65b9\u6cd5<\/h2>\n<p>\u9078\u64c7\u54ea\u7a2e\u65b9\u6cd5\u4f86\u5b58\u5132\u6578\u7d44\u6578\u64da\u53d6\u6c7a\u65bc\u5177\u9ad4\u7684\u61c9\u7528\u5834\u666f\u548c\u9700\u6c42\u3002\u5982\u679c\u9700\u8981\u9748\u6d3b\u6027\u548c\u53ef\u64f4\u5c55\u6027\uff0c\u4f7f\u7528JSON\u6578\u64da\u985e\u578b\u53ef\u80fd\u662f\u6700\u4f73\u9078\u64c7\u3002\u5982\u679c\u6578\u64da\u7d50\u69cb\u76f8\u5c0d\u56fa\u5b9a\uff0c\u4f7f\u7528\u95dc\u806f\u8868\u53ef\u80fd\u66f4\u70ba\u5408\u9069\u3002\u800c\u5982\u679c\u4f7f\u7528\u7684\u662f\u652f\u6301\u6578\u7d44\u6578\u64da\u985e\u578b\u7684\u6578\u64da\u5eab\uff0c\u5247\u53ef\u4ee5\u76f4\u63a5\u5229\u7528\u9019\u4e00\u7279\u6027\u4f86\u7c21\u5316\u8a2d\u8a08\u3002<\/p>\n<h2 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