{"id":247318,"date":"2024-01-02T20:20:21","date_gmt":"2024-01-02T12:20:21","guid":{"rendered":"https:\/\/www.idc.net\/help\/247318\/"},"modified":"2024-01-02T20:20:21","modified_gmt":"2024-01-02T12:20:21","slug":"%e5%a6%82%e4%bd%95%e4%bf%ae%e5%a4%8dpostgresql%e9%94%99%e8%af%af%e4%bb%a3%e7%a0%81%ef%bc%9ap0002-no_data_found%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/idc.net\/help\/247318\/","title":{"rendered":"\u5982\u4f55\u4fee\u590dPostgreSQL\u9519\u8bef\u4ee3\u7801\uff1aP0002 &#8211; no_data_found\uff1f"},"content":{"rendered":"<p><title id=\"%e5%a6%82%e4%bd%95%e4%bf%ae%e5%a4%8dpostgresql%e9%94%99%e8%af%af%e4%bb%a3%e7%a0%81%ef%bc%9ap0002-no_data_found%ef%bc%9f-JhIzplTQFu\">\u5982\u4f55\u4fee\u590dPostgreSQL\u9519\u8bef\u4ee3\u7801\uff1aP0002 - no_data_found\uff1f<\/title><\/p>\n<h1 id=\"%e5%a6%82%e4%bd%95%e4%bf%ae%e5%a4%8dpostgresql%e9%94%99%e8%af%af%e4%bb%a3%e7%a0%81%ef%bc%9ap0002-no_data_found%ef%bc%9f-JhIzplTQFu\">\u5982\u4f55\u4fee\u590dPostgreSQL\u9519\u8bef\u4ee3\u7801\uff1aP0002 - no_data_found\uff1f<\/h1>\n<p>PostgreSQL\u662f\u4e00\u79cd\u529f\u80fd\u5f3a\u5927\u7684\u5f00\u6e90\u5173\u7cfb\u578b\u6570\u636e\u5e93\u7ba1\u7406\u7cfb\u7edf\uff0c\u5e7f\u6cdb\u5e94\u7528\u4e8e\u5404\u79cd\u5e94\u7528\u7a0b\u5e8f\u548c\u7f51\u7ad9\u3002\u7136\u800c\uff0c\u6709\u65f6\u5019\u5728\u4f7f\u7528PostgreSQL\u65f6\uff0c\u60a8\u53ef\u80fd\u4f1a\u9047\u5230\u9519\u8bef\u4ee3\u7801P0002 - no_data_found\u3002\u672c\u6587\u5c06\u4ecb\u7ecd\u8fd9\u4e2a\u9519\u8bef\u7684\u539f\u56e0\u4ee5\u53ca\u5982\u4f55\u4fee\u590d\u5b83\u3002<\/p>\n<h2 id=\"%e9%94%99%e8%af%af%e4%bb%a3%e7%a0%81p0002-no_data_found%e7%9a%84%e5%8e%9f%e5%9b%a0-JhIzplTQFu\">\u9519\u8bef\u4ee3\u7801P0002 - no_data_found\u7684\u539f\u56e0<\/h2>\n<p>\u9519\u8bef\u4ee3\u7801P0002\u8868\u793a\u5728\u6267\u884cSQL\u67e5\u8be2\u65f6\u672a\u627e\u5230\u4efb\u4f55\u6570\u636e\u3002\u8fd9\u53ef\u80fd\u662f\u7531\u4e8e\u4ee5\u4e0b\u51e0\u4e2a\u539f\u56e0\u5bfc\u81f4\u7684\uff1a<\/p>\n<ul>\n<li>\u67e5\u8be2\u6761\u4ef6\u4e0d\u6b63\u786e\uff1a\u8bf7\u786e\u4fdd\u60a8\u7684\u67e5\u8be2\u6761\u4ef6\u6b63\u786e\uff0c\u5e76\u4e14\u4e0e\u6570\u636e\u5e93\u4e2d\u7684\u6570\u636e\u5339\u914d\u3002<\/li>\n<li>\u6570\u636e\u4e0d\u5b58\u5728\uff1a\u5982\u679c\u60a8\u7684\u67e5\u8be2\u6761\u4ef6\u6b63\u786e\uff0c\u4f46\u6570\u636e\u5e93\u4e2d\u6ca1\u6709\u4e0e\u4e4b\u5339\u914d\u7684\u6570\u636e\uff0c\u90a3\u4e48\u5c31\u4f1a\u51fa\u73b0no_data_found\u9519\u8bef\u3002<\/li>\n<li>\u8868\u540d\u6216\u5217\u540d\u9519\u8bef\uff1a\u8bf7\u68c0\u67e5\u60a8\u7684SQL\u67e5\u8be2\u4e2d\u7684\u8868\u540d\u548c\u5217\u540d\u662f\u5426\u6b63\u786e\u3002<\/li>\n<\/ul>\n<h2 id=\"%e4%bf%ae%e5%a4%8d%e9%94%99%e8%af%af%e4%bb%a3%e7%a0%81p0002-no_data_found%e7%9a%84%e6%96%b9%e6%b3%95-JhIzplTQFu\">\u4fee\u590d\u9519\u8bef\u4ee3\u7801P0002 - no_data_found\u7684\u65b9\u6cd5<\/h2>\n<p>\u8981\u4fee\u590d\u9519\u8bef\u4ee3\u7801P0002 - no_data_found\uff0c\u60a8\u53ef\u4ee5\u91c7\u53d6\u4ee5\u4e0b\u51e0\u4e2a\u6b65\u9aa4\uff1a<\/p>\n<ol>\n<li>\u68c0\u67e5\u67e5\u8be2\u6761\u4ef6\uff1a\u8bf7\u4ed4\u7ec6\u68c0\u67e5\u60a8\u7684\u67e5\u8be2\u6761\u4ef6\uff0c\u786e\u4fdd\u5b83\u4eec\u6b63\u786e\u5e76\u4e0e\u6570\u636e\u5e93\u4e2d\u7684\u6570\u636e\u5339\u914d\u3002<\/li>\n<li>\u786e\u8ba4\u6570\u636e\u662f\u5426\u5b58\u5728\uff1a\u5982\u679c\u60a8\u7684\u67e5\u8be2\u6761\u4ef6\u6b63\u786e\uff0c\u4f46\u6570\u636e\u5e93\u4e2d\u6ca1\u6709\u4e0e\u4e4b\u5339\u914d\u7684\u6570\u636e\uff0c\u90a3\u4e48\u60a8\u9700\u8981\u786e\u8ba4\u6570\u636e\u662f\u5426\u5b58\u5728\u3002\u60a8\u53ef\u4ee5\u4f7f\u7528\u5176\u4ed6\u67e5\u8be2\u6216\u5de5\u5177\u6765\u9a8c\u8bc1\u6570\u636e\u662f\u5426\u5b58\u5728\u3002<\/li>\n<li>\u68c0\u67e5\u8868\u540d\u548c\u5217\u540d\uff1a\u8bf7\u68c0\u67e5\u60a8\u7684SQL\u67e5\u8be2\u4e2d\u7684\u8868\u540d\u548c\u5217\u540d\u662f\u5426\u6b63\u786e\u3002\u5982\u679c\u6709\u4efb\u4f55\u62fc\u5199\u9519\u8bef\u6216\u5927\u5c0f\u5199\u9519\u8bef\uff0c\u90fd\u53ef\u80fd\u5bfc\u81f4no_data_found\u9519\u8bef\u3002<\/li>\n<li>\u4f7f\u7528\u5f02\u5e38\u5904\u7406\uff1a\u5728\u60a8\u7684\u4ee3\u7801\u4e2d\u4f7f\u7528\u5f02\u5e38\u5904\u7406\u673a\u5236\u53ef\u4ee5\u66f4\u597d\u5730\u5904\u7406no_data_found\u9519\u8bef\u3002\u60a8\u53ef\u4ee5\u6355\u83b7\u8be5\u5f02\u5e38\u5e76\u91c7\u53d6\u9002\u5f53\u7684\u63aa\u65bd\uff0c\u4f8b\u5982\u8f93\u51fa\u9519\u8bef\u6d88\u606f\u6216\u6267\u884c\u5907\u7528\u64cd\u4f5c\u3002<\/li>\n<\/ol>\n<h2 id=\"%e7%a4%ba%e4%be%8b%e4%bb%a3%e7%a0%81-JhIzplTQFu\">\u793a\u4f8b\u4ee3\u7801<\/h2>\n<p>\u4ee5\u4e0b\u662f\u4e00\u4e2a\u793a\u4f8b\u4ee3\u7801\uff0c\u6f14\u793a\u4e86\u5982\u4f55\u4f7f\u7528\u5f02\u5e38\u5904\u7406\u6765\u4fee\u590d\u9519\u8bef\u4ee3\u7801P0002 - no_data_found\uff1a<\/p>\n<pre><code>\nBEGIN\n  BEGIN\n    -- Your SQL query here\n  EXCEPTION\n    WHEN no_data_found THEN\n      -- Handle the error here\n  END;\nEND;\n<\/code><\/pre>\n<p>\u901a\u8fc7\u4f7f\u7528\u5f02\u5e38\u5904\u7406\uff0c\u60a8\u53ef\u4ee5\u5728\u51fa\u73b0no_data_found\u9519\u8bef\u65f6\u6267\u884c\u81ea\u5b9a\u4e49\u7684\u9519\u8bef\u5904\u7406\u903b\u8f91\u3002<\/p>\n<h2 id=\"%e6%80%bb%e7%bb%93-JhIzplTQFu\">\u603b\u7ed3<\/h2>\n<p>\u9519\u8bef\u4ee3\u7801P0002 - no_data_found\u662f\u5728\u6267\u884cSQL\u67e5\u8be2\u65f6\u672a\u627e\u5230\u4efb\u4f55\u6570\u636e\u7684\u9519\u8bef\u3002\u8981\u4fee\u590d\u8fd9\u4e2a\u9519\u8bef\uff0c\u60a8\u53ef\u4ee5\u68c0\u67e5\u67e5\u8be2\u6761\u4ef6\u3001\u786e\u8ba4\u6570\u636e\u662f\u5426\u5b58\u5728\u3001\u68c0\u67e5\u8868\u540d\u548c\u5217\u540d\uff0c\u5e76\u4f7f\u7528\u5f02\u5e38\u5904\u7406\u673a\u5236\u6765\u5904\u7406\u9519\u8bef\u3002\u901a\u8fc7\u91c7\u53d6\u8fd9\u4e9b\u6b65\u9aa4\uff0c\u60a8\u53ef\u4ee5\u66f4\u597d\u5730\u5904\u7406no_data_found\u9519\u8bef\u5e76\u786e\u4fdd\u60a8\u7684\u6570\u636e\u5e93\u67e5\u8be2\u6b63\u5e38\u8fd0\u884c\u3002<\/p>\n<p>\u9999\u6e2f\u670d\u52a1\u5668\u9996\u9009\u540e\u6d6a\u4e91\uff0c\u63d0\u4f9b\u53ef\u9760\u7684\u4e91\u8ba1\u7b97\u670d\u52a1\u3002\u60a8\u53ef\u4ee5\u8bbf\u95ee<a href=\"https:\/\/idc.net\">https:\/\/idc.net<\/a>\u4e86\u89e3\u66f4\u591a\u4fe1\u606f\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5982\u4f55\u4fee\u590dPostgreSQL\u9519\u8bef\u4ee3\u7801\uff1aP0002 - no_data_found\uff1f \u5982\u4f55\u4fee\u590dPostgreSQ [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[7038],"tags":[],"class_list":["post-247318","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/posts\/247318","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/comments?post=247318"}],"version-history":[{"count":0,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/posts\/247318\/revisions"}],"wp:attachment":[{"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/media?parent=247318"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/categories?post=247318"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/tags?post=247318"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}