{"id":21370,"date":"2024-01-02T08:15:24","date_gmt":"2024-01-02T08:15:24","guid":{"rendered":"https:\/\/server.hk\/blog\/21370\/"},"modified":"2024-11-14T10:35:46","modified_gmt":"2024-11-14T02:35:46","slug":"how-to-fix-postgresql-error-code-2f005-function_executed_no_return_statement","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/21370\/","title":{"rendered":"\u5982\u4f55\u4fee\u5fa9 PostgreSQL \u932f\u8aa4\u4ee3\u78bc\uff1a2F005 – function_executed_no_return_statement"},"content":{"rendered":"

\u5982\u4f55\u4fee\u5fa9 PostgreSQL \u932f\u8aa4\u4ee3\u78bc\uff1a2F005 – function_executed_no_return_statement<\/h1>\n

PostgreSQL \u662f\u4e00\u500b\u5f37\u5927\u7684\u958b\u6e90\u95dc\u806f\u5f0f\u6578\u64da\u5eab\u7ba1\u7406\u7cfb\u7d71\uff0c\u5ee3\u6cdb\u61c9\u7528\u65bc\u5404\u7a2e\u4e0d\u540c\u7684\u61c9\u7528\u7a0b\u5e8f\u4e2d\u3002\u7136\u800c\uff0c\u50cf\u6240\u6709\u8edf\u4ef6\u4e00\u6a23\uff0cPostgreSQL \u4e5f\u53ef\u80fd\u9047\u5230\u4e00\u4e9b\u932f\u8aa4\uff0c\u5c0e\u81f4\u7cfb\u7d71\u7121\u6cd5\u6b63\u5e38\u904b\u884c\u3002\u5176\u4e2d\u4e00\u500b\u5e38\u898b\u7684\u932f\u8aa4\u662f PostgreSQL \u932f\u8aa4\u4ee3\u78bc\uff1a2F005 – function_executed_no_return_statement\u3002\u5728\u672c\u6587\u4e2d\uff0c\u6211\u5011\u5c07\u63a2\u8a0e\u6b64\u932f\u8aa4\u7684\u542b\u7fa9\u4ee5\u53ca\u5982\u4f55\u4fee\u5fa9\u5b83\u3002<\/p>\n

\u7576\u60a8\u9047\u5230 PostgreSQL \u932f\u8aa4\u4ee3\u78bc\uff1a2F005 – function_executed_no_return_statement \u6642\uff0c\u9019\u610f\u5473\u8457\u60a8\u57f7\u884c\u4e86\u4e00\u500b\u61c9\u8a72\u8fd4\u56de\u503c\u7684\u51fd\u6578\uff0c\u4f46\u8a72\u51fd\u6578\u6c92\u6709\u8fd4\u56de\u8a9e\u53e5\u3002\u6b64\u932f\u8aa4\u901a\u5e38\u767c\u751f\u5728\u5275\u5efa\u51fd\u6578\u6642\u672a\u6307\u5b9a\u8fd4\u56de\u985e\u578b\u6216\u5fd8\u8a18\u5728\u51fd\u6578\u9ad4\u5167\u52a0\u5165\u8fd4\u56de\u8a9e\u53e5\u7684\u60c5\u6cc1\u4e0b\u3002<\/p>\n

\u8981\u4fee\u5fa9\u6b64\u932f\u8aa4\uff0c\u60a8\u9700\u8981\u78ba\u4fdd\u60a8\u7684\u51fd\u6578\u6709\u6307\u5b9a\u7684\u8fd4\u56de\u985e\u578b\u4e26\u5305\u542b\u8fd4\u56de\u8a9e\u53e5\u3002\u4ee5\u4e0b\u662f\u5177\u9ad4\u6b65\u9a5f\uff1a<\/p>\n

    \n
  1. \u8b58\u5225\u5c0e\u81f4\u932f\u8aa4\u7684\u51fd\u6578\uff1a<\/strong>\u7b2c\u4e00\u6b65\u662f\u8b58\u5225\u5c0e\u81f4\u932f\u8aa4\u7684\u5177\u9ad4\u51fd\u6578\u3002\u60a8\u53ef\u4ee5\u901a\u904e\u67e5\u770b\u932f\u8aa4\u8a0a\u606f\u6216\u6aa2\u67e5\u4ee3\u78bc\u4f86\u627e\u5230\u6c92\u6709\u8fd4\u56de\u8a9e\u53e5\u7684\u51fd\u6578\u3002<\/li>\n
  2. \u6307\u5b9a\u8fd4\u56de\u985e\u578b\uff1a<\/strong>\u8b58\u5225\u51fa\u51fd\u6578\u5f8c\uff0c\u8acb\u78ba\u4fdd\u5df2\u70ba\u5176\u6307\u5b9a\u8fd4\u56de\u985e\u578b\u3002\u8fd4\u56de\u985e\u578b\u6c7a\u5b9a\u51fd\u6578\u61c9\u8fd4\u56de\u7684\u6578\u64da\u985e\u578b\u3002\u60a8\u53ef\u4ee5\u5728\u51fd\u6578\u5ba3\u544a\u4e2d\u6307\u5b9a\u8fd4\u56de\u985e\u578b\uff0c\u6216\u4f7f\u7528 RETURNS<\/code> \u95dc\u9375\u5b57\u5f8c\u8ddf\u6240\u9700\u7684\u6578\u64da\u985e\u578b\u4f86\u6307\u5b9a\u3002<\/li>\n
  3. \u52a0\u5165\u8fd4\u56de\u8a9e\u53e5\uff1a<\/strong>\u5728\u6307\u5b9a\u8fd4\u56de\u985e\u578b\u5f8c\uff0c\u60a8\u9700\u8981\u5728\u51fd\u6578\u9ad4\u5167\u5305\u542b\u8fd4\u56de\u8a9e\u53e5\u3002\u8fd4\u56de\u8a9e\u53e5\u61c9\u8fd4\u56de\u6307\u5b9a\u985e\u578b\u7684\u503c\u3002\u5982\u679c\u60a8\u7684\u51fd\u6578\u4e0d\u6253\u7b97\u8fd4\u56de\u4efb\u4f55\u503c\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528 “void” \u4f5c\u70ba\u8fd4\u56de\u985e\u578b\uff0c\u4e26\u7701\u7565\u8fd4\u56de\u8a9e\u53e5\u3002<\/li>\n<\/ol>\n

    \u4ee5\u4e0b\u662f\u7f3a\u5c11\u8fd4\u56de\u8a9e\u53e5\u7684\u51fd\u6578\u793a\u4f8b\uff1a<\/p>\n

    CREATE FUNCTION calculate_average(num1 INTEGER, num2 INTEGER) RETURNS INTEGER AS $$ \r\nBEGIN \r\n    DECLARE avg INTEGER; \r\n    SET avg = (num1 + num2) \/ 2; \r\n    -- \u7f3a\u5c11\u8fd4\u56de\u8a9e\u53e5 \r\nEND; \r\n$$ LANGUAGE plpgsql;\r\n<\/code><\/pre>\n
    \u8981\u4fee\u5fa9\u6b64\u51fd\u6578\uff0c\u6211\u5011\u9700\u8981\u52a0\u5165\u8fd4\u56de\u8a9e\u53e5\uff1a<\/p>\n
    CREATE FUNCTION calculate_average(num1 INTEGER, num2 INTEGER) RETURNS INTEGER AS $$ \r\nBEGIN \r\n    DECLARE avg INTEGER; \r\n    SET avg = (num1 + num2) \/ 2; \r\n    RETURN avg; -- \u5df2\u6dfb\u52a0\u8fd4\u56de\u8a9e\u53e5 \r\nEND; \r\n$$ LANGUAGE plpgsql;\r\n<\/code><\/pre>\n
    \u901a\u904e\u6dfb\u52a0\u8fd4\u56de\u8a9e\u53e5\uff0c\u8a72\u51fd\u6578\u73fe\u5728\u5c07\u8fd4\u56de\u8a08\u7b97\u51fa\u7684\u5e73\u5747\u503c\u3002<\/p>\n
    \u7e3d\u7d50<\/h2>\n
    \u7e3d\u800c\u8a00\u4e4b\uff0cPostgreSQL \u932f\u8aa4\u4ee3\u78bc\uff1a2F005 – function_executed_no_return_statement \u662f\u7531\u65bc\u51fd\u6578\u7f3a\u5c11\u8fd4\u56de\u8a9e\u53e5\u6216\u6307\u5b9a\u7684\u8fd4\u56de\u985e\u578b\u800c\u767c\u751f\u7684\u3002\u8981\u4fee\u5fa9\u6b64\u932f\u8aa4\uff0c\u60a8\u9700\u8981\u78ba\u4fdd\u51fd\u6578\u6709\u6307\u5b9a\u7684\u8fd4\u56de\u985e\u578b\uff0c\u4e26\u5305\u542b\u4e00\u500b\u8fd4\u56de\u6307\u5b9a\u985e\u578b\u503c\u7684\u8fd4\u56de\u8a9e\u53e5\u3002\u901a\u904e\u9075\u5faa\u9019\u4e9b\u6b65\u9a5f\uff0c\u60a8\u53ef\u4ee5\u89e3\u6c7a\u6b64\u932f\u8aa4\uff0c\u78ba\u4fdd\u60a8\u7684 PostgreSQL \u6578\u64da\u5eab\u6b63\u5e38\u904b\u884c\u3002<\/p>\n
    \u6458\u8981\uff1a\u5982\u679c\u60a8\u9047\u5230 PostgreSQL \u932f\u8aa4\u4ee3\u78bc\uff1a2F005 – function_executed_no_return_statement\uff0c\u9019\u610f\u5473\u8457\u60a8\u7684 PostgreSQL \u6578\u64da\u5eab\u4e2d\u7684\u67d0\u500b\u51fd\u6578\u7f3a\u5c11\u8fd4\u56de\u8a9e\u53e5\u6216\u6307\u5b9a\u7684\u8fd4\u56de\u985e\u578b\u3002\u8981\u4fee\u5fa9\u6b64\u932f\u8aa4\uff0c\u60a8\u9700\u8981\u6307\u5b9a\u8fd4\u56de\u985e\u578b\u4e26\u5728\u51fd\u6578\u9ad4\u5167\u5305\u542b\u8fd4\u56de\u8a9e\u53e5\u3002Server.HK<\/a> \u63d0\u4f9b\u53ef\u9760\u7684 VPS \u8a17\u7ba1\u89e3\u6c7a\u65b9\u6848\uff0c\u80fd\u5e6b\u52a9\u60a8\u512a\u5316 PostgreSQL \u6578\u64da\u5eab\u7684\u6027\u80fd\u3002\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u4ee5\u4e86\u89e3\u66f4\u591a\u6709\u95dc\u6211\u5011\u7684 VPS \u8a17\u7ba1\u670d\u52d9\u5982\u4f55\u4f7f\u60a8\u7684\u696d\u52d9\u53d7\u76ca\u7684\u8cc7\u8a0a\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
    \u5982\u4f55\u4fee\u5fa9 PostgreSQL ...<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4925],"tags":[],"class_list":["post-21370","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/21370","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=21370"}],"version-history":[{"count":2,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/21370\/revisions"}],"predecessor-version":[{"id":24126,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/21370\/revisions\/24126"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=21370"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=21370"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=21370"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}