{"id":178786,"date":"2024-11-08T20:53:21","date_gmt":"2024-11-08T12:53:21","guid":{"rendered":"https:\/\/server.hk\/cnblog\/178786\/"},"modified":"2024-11-08T20:53:22","modified_gmt":"2024-11-08T12:53:22","slug":"%e5%a6%82%e4%bd%95%e4%bf%ae%e5%be%a9postgresql%e9%8c%af%e8%aa%a4%e4%bb%a3%e7%a2%bc%ef%bc%9a2203b-sql_json_number_not_found%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/178786\/","title":{"rendered":"\u5982\u4f55\u4fee\u5fa9PostgreSQL\u932f\u8aa4\u4ee3\u78bc\uff1a2203B &#8211; sql_json_number_not_found\uff1f"},"content":{"rendered":"<h1 id=\"%e5%a6%82%e4%bd%95%e4%bf%ae%e5%be%a9postgresql%e9%8c%af%e8%aa%a4%e4%bb%a3%e7%a2%bc%ef%bc%9a2203b-sql_json_number_not_found-RTCSRJjKpT\">\u5982\u4f55\u4fee\u5fa9PostgreSQL\u932f\u8aa4\u4ee3\u78bc\uff1a2203B &#8211; sql_json_number_not_found<\/h1>\n<p>\u5728\u4f7f\u7528PostgreSQL\u9032\u884c\u6578\u64da\u5eab\u7ba1\u7406\u6642\uff0c\u958b\u767c\u8005\u53ef\u80fd\u6703\u9047\u5230\u5404\u7a2e\u932f\u8aa4\u4ee3\u78bc\uff0c\u5176\u4e2d\u4e4b\u4e00\u5c31\u662f\u932f\u8aa4\u4ee3\u78bc2203B\uff0c\u8a72\u932f\u8aa4\u901a\u5e38\u8207JSON\u6578\u64da\u985e\u578b\u7684\u8655\u7406\u6709\u95dc\u3002\u5177\u9ad4\u4f86\u8aaa\uff0c\u9019\u500b\u932f\u8aa4\u8868\u793a\u5728\u67e5\u8a62\u4e2d\u627e\u4e0d\u5230\u6307\u5b9a\u7684\u6578\u5b57\uff0c\u9019\u53ef\u80fd\u662f\u7531\u65bc\u6578\u64da\u683c\u5f0f\u4e0d\u6b63\u78ba\u6216\u67e5\u8a62\u8a9e\u53e5\u7684\u554f\u984c\u6240\u5f15\u8d77\u7684\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5982\u4f55\u8b58\u5225\u548c\u4fee\u5fa9\u9019\u4e00\u932f\u8aa4\u3002<\/p>\n<h2 id=\"%e7%90%86%e8%a7%a3%e9%8c%af%e8%aa%a4%e4%bb%a3%e7%a2%bc2203b-RTCSRJjKpT\">\u7406\u89e3\u932f\u8aa4\u4ee3\u78bc2203B<\/h2>\n<p>\u932f\u8aa4\u4ee3\u78bc2203B\u7684\u5177\u9ad4\u542b\u7fa9\u662f\u201csql_json_number_not_found\u201d\uff0c\u9019\u610f\u5473\u8457\u5728\u57f7\u884cSQL\u67e5\u8a62\u6642\uff0cPostgreSQL\u7121\u6cd5\u5728JSON\u6578\u64da\u4e2d\u627e\u5230\u6240\u9700\u7684\u6578\u5b57\u3002\u9019\u901a\u5e38\u767c\u751f\u5728\u4ee5\u4e0b\u60c5\u6cc1\uff1a<\/p>\n<ul>\n<li>\u67e5\u8a62\u7684JSON\u5b57\u6bb5\u4e2d\u7f3a\u5c11\u6307\u5b9a\u7684\u9375\u3002<\/li>\n<li>\u67e5\u8a62\u7684JSON\u5b57\u6bb5\u683c\u5f0f\u4e0d\u6b63\u78ba\uff0c\u5c0e\u81f4\u7121\u6cd5\u6b63\u78ba\u89e3\u6790\u3002<\/li>\n<li>\u4f7f\u7528\u4e86\u4e0d\u6b63\u78ba\u7684JSON\u51fd\u6578\u6216\u64cd\u4f5c\u7b26\u3002<\/li>\n<\/ul>\n<h2 id=\"%e5%b8%b8%e8%a6%8b%e5%8e%9f%e5%9b%a0%e5%8f%8a%e8%a7%a3%e6%b1%ba%e6%96%b9%e6%a1%88-RTCSRJjKpT\">\u5e38\u898b\u539f\u56e0\u53ca\u89e3\u6c7a\u65b9\u6848<\/h2>\n<h3 id=\"1-%e6%aa%a2%e6%9f%a5json%e6%95%b8%e6%93%9a%e6%a0%bc%e5%bc%8f-RTCSRJjKpT\">1. \u6aa2\u67e5JSON\u6578\u64da\u683c\u5f0f<\/h3>\n<p>\u9996\u5148\uff0c\u78ba\u4fdd\u4f60\u7684JSON\u6578\u64da\u683c\u5f0f\u6b63\u78ba\u3002\u53ef\u4ee5\u4f7f\u7528JSON\u9a57\u8b49\u5de5\u5177\u4f86\u6aa2\u67e5\u6578\u64da\u7684\u6709\u6548\u6027\u3002\u4f8b\u5982\uff0c\u4ee5\u4e0b\u662f\u4e00\u500b\u6b63\u78ba\u7684JSON\u683c\u5f0f\uff1a<\/p>\n<pre><code>{\n    \"name\": \"John\",\n    \"age\": 30,\n    \"city\": \"New York\"\n}<\/code><\/pre>\n<p>\u5982\u679c\u4f60\u7684\u6578\u64da\u683c\u5f0f\u4e0d\u6b63\u78ba\uff0c\u8acb\u4fee\u6b63\u5b83\uff0c\u7136\u5f8c\u91cd\u65b0\u57f7\u884c\u67e5\u8a62\u3002<\/p>\n<h3 id=\"2-%e7%a2%ba%e8%aa%8d%e6%9f%a5%e8%a9%a2%e4%b8%ad%e7%9a%84%e9%8d%b5%e5%ad%98%e5%9c%a8-RTCSRJjKpT\">2. \u78ba\u8a8d\u67e5\u8a62\u4e2d\u7684\u9375\u5b58\u5728<\/h3>\n<p>\u5728\u57f7\u884c\u67e5\u8a62\u4e4b\u524d\uff0c\u8acb\u78ba\u8a8d\u4f60\u6240\u67e5\u8a62\u7684\u9375\u5728JSON\u6578\u64da\u4e2d\u78ba\u5be6\u5b58\u5728\u3002\u4f8b\u5982\uff0c\u5982\u679c\u4f60\u4f7f\u7528\u4ee5\u4e0b\u67e5\u8a62\uff1a<\/p>\n<pre><code>SELECT data-&gt;&gt;'age' FROM users WHERE id = 1;<\/code><\/pre>\n<p>\u8acb\u78ba\u4fdd\u5728ID\u70ba1\u7684\u7528\u6236\u7684JSON\u6578\u64da\u4e2d\u5b58\u5728\u201cage\u201d\u9019\u500b\u9375\u3002\u5982\u679c\u4e0d\u5b58\u5728\uff0c\u5247\u6703\u5c0e\u81f42203B\u932f\u8aa4\u3002<\/p>\n<h3 id=\"3-%e4%bd%bf%e7%94%a8%e6%ad%a3%e7%a2%ba%e7%9a%84json%e5%87%bd%e6%95%b8-RTCSRJjKpT\">3. \u4f7f\u7528\u6b63\u78ba\u7684JSON\u51fd\u6578<\/h3>\n<p>PostgreSQL\u63d0\u4f9b\u4e86\u591a\u7a2e\u8655\u7406JSON\u6578\u64da\u7684\u51fd\u6578\uff0c\u5982`jsonb_extract_path_text`\u548c`jsonb_array_elements`\u7b49\u3002\u78ba\u4fdd\u4f60\u4f7f\u7528\u7684\u51fd\u6578\u9069\u5408\u4f60\u7684\u9700\u6c42\u3002\u4f8b\u5982\uff0c\u82e5\u8981\u63d0\u53d6\u5d4c\u5957\u7684JSON\u503c\uff0c\u53ef\u4ee5\u4f7f\u7528\uff1a<\/p>\n<pre><code>SELECT jsonb_extract_path_text(data, 'address', 'zipcode') FROM users WHERE id = 1;<\/code><\/pre>\n<p>\u9019\u6a23\u53ef\u4ee5\u907f\u514d\u56e0\u4f7f\u7528\u4e0d\u7576\u7684\u51fd\u6578\u800c\u5c0e\u81f4\u7684\u932f\u8aa4\u3002<\/p>\n<h2 id=\"%e7%a4%ba%e4%be%8b%ef%bc%9a%e4%bf%ae%e5%be%a92203b%e9%8c%af%e8%aa%a4-RTCSRJjKpT\">\u793a\u4f8b\uff1a\u4fee\u5fa92203B\u932f\u8aa4<\/h2>\n<p>\u5047\u8a2d\u4f60\u6709\u4e00\u500b\u7528\u6236\u8868\uff0c\u8868\u4e2d\u6709\u4e00\u500bJSONB\u985e\u578b\u7684\u5b57\u6bb5\u201cdata\u201d\uff0c\u5176\u5167\u5bb9\u5982\u4e0b\uff1a<\/p>\n<pre><code>{\n    \"name\": \"Alice\",\n    \"details\": {\n        \"age\": 25,\n        \"city\": \"Los Angeles\"\n    }\n}<\/code><\/pre>\n<p>\u5982\u679c\u4f60\u57f7\u884c\u4ee5\u4e0b\u67e5\u8a62\uff1a<\/p>\n<pre><code>SELECT data-&gt;&gt;'age' FROM users WHERE id = 1;<\/code><\/pre>\n<p>\u9019\u5c07\u5c0e\u81f42203B\u932f\u8aa4\uff0c\u56e0\u70ba\u201cage\u201d\u9375\u5728\u201cdetails\u201d\u5c0d\u8c61\u4e2d\uff0c\u800c\u4e0d\u662f\u5728\u6839\u7d1a\u5225\u3002\u6b63\u78ba\u7684\u67e5\u8a62\u61c9\u8a72\u662f\uff1a<\/p>\n<pre><code>SELECT data-&gt;'details'-&gt;&gt;'age' FROM users WHERE id = 1;<\/code><\/pre>\n<h2 id=\"%e7%b8%bd%e7%b5%90-RTCSRJjKpT\">\u7e3d\u7d50<\/h2>\n<p>PostgreSQL\u932f\u8aa4\u4ee3\u78bc2203B\u901a\u5e38\u8207JSON\u6578\u64da\u7684\u683c\u5f0f\u548c\u67e5\u8a62\u6709\u95dc\u3002\u901a\u904e\u6aa2\u67e5JSON\u6578\u64da\u7684\u683c\u5f0f\u3001\u78ba\u8a8d\u67e5\u8a62\u4e2d\u7684\u9375\u662f\u5426\u5b58\u5728\u4ee5\u53ca\u4f7f\u7528\u6b63\u78ba\u7684JSON\u51fd\u6578\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u4fee\u5fa9\u6b64\u932f\u8aa4\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u6548\u6578\u64da\u8655\u7406\u7684\u61c9\u7528\uff0c\u9078\u64c7\u5408\u9069\u7684\u6578\u64da\u5eab\u89e3\u6c7a\u65b9\u6848\u81f3\u95dc\u91cd\u8981\u3002\u5982\u679c\u4f60\u6b63\u5728\u5c0b\u627e\u7a69\u5b9a\u7684<a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a>\u6216<a href=\"https:\/\/server.hk\">\u96f2\u4f3a\u670d\u5668<\/a>\uff0cServer.HK\u63d0\u4f9b\u591a\u7a2e\u9078\u64c7\uff0c\u6eff\u8db3\u4e0d\u540c\u9700\u6c42\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e86\u89e3\u5982\u4f55\u4fee\u5fa9PostgreSQL\u932f\u8aa4\u4ee3\u78bc2203B\uff1asql_json_number_not_found\uff0c\u89e3\u6c7aJSON\u6578\u64da\u67e5\u8a62\u4e2d\u7684\u554f\u984c\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-178786","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/178786","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=178786"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/178786\/revisions"}],"predecessor-version":[{"id":178787,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/178786\/revisions\/178787"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=178786"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=178786"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=178786"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}