{"id":178434,"date":"2024-11-08T17:56:35","date_gmt":"2024-11-08T09:56:35","guid":{"rendered":"https:\/\/server.hk\/cnblog\/178434\/"},"modified":"2024-11-08T17:56:36","modified_gmt":"2024-11-08T09:56:36","slug":"%e5%a6%82%e4%bd%95%e4%bf%ae%e5%be%a9mysql%e9%8c%af%e8%aa%a41320-sqlstate-2f005er_sp_noreturnend-%e5%87%bd%e6%95%b8s%e5%9c%a8%e6%b2%92%e6%9c%89return%e7%9a%84%e6%83%85%e6%b3%81%e4%b8%8b%e7%b5%90","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/178434\/","title":{"rendered":"\u5982\u4f55\u4fee\u5fa9MySQL\u932f\u8aa41320 &#8211; SQLSTATE: 2F005(ER_SP_NORETURNEND) \u51fd\u6578%s\u5728\u6c92\u6709RETURN\u7684\u60c5\u6cc1\u4e0b\u7d50\u675f"},"content":{"rendered":"<h1 id=\"%e5%a6%82%e4%bd%95%e4%bf%ae%e5%be%a9mysql%e9%8c%af%e8%aa%a41320-sqlstate-2f005er_sp_noreturnend-%e5%87%bd%e6%95%b8s%e5%9c%a8%e6%b2%92%e6%9c%89return%e7%9a%84%e6%83%85%e6%b3%81%e4%b8%8b%e7%b5%90-xSSnopwwCH\">\u5982\u4f55\u4fee\u5fa9MySQL\u932f\u8aa41320 &#8211; SQLSTATE: 2F005(ER_SP_NORETURNEND) \u51fd\u6578%s\u5728\u6c92\u6709RETURN\u7684\u60c5\u6cc1\u4e0b\u7d50\u675f<\/h1>\n<p>\u5728\u4f7f\u7528MySQL\u9032\u884c\u6578\u64da\u5eab\u7ba1\u7406\u6642\uff0c\u958b\u767c\u8005\u53ef\u80fd\u6703\u9047\u5230\u5404\u7a2e\u932f\u8aa4\uff0c\u5176\u4e2d\u4e4b\u4e00\u5c31\u662f\u932f\u8aa41320\uff0c\u8a72\u932f\u8aa4\u7684SQLSTATE\u4ee3\u78bc\u70ba2F005\uff0c\u4e26\u4e14\u986f\u793a\u4fe1\u606f\u70ba\u201c\u51fd\u6578%s\u5728\u6c92\u6709RETURN\u7684\u60c5\u6cc1\u4e0b\u7d50\u675f\u201d\u3002\u9019\u500b\u932f\u8aa4\u901a\u5e38\u767c\u751f\u5728\u5b58\u5132\u904e\u7a0b\u6216\u51fd\u6578\u4e2d\uff0c\u7576\u9019\u4e9b\u7a0b\u5e8f\u5728\u57f7\u884c\u7d50\u675f\u6642\u672a\u6b63\u78ba\u8fd4\u56de\u503c\u6642\uff0c\u5c31\u6703\u5f15\u767c\u6b64\u932f\u8aa4\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u8a72\u932f\u8aa4\u7684\u539f\u56e0\u53ca\u5176\u4fee\u5fa9\u65b9\u6cd5\u3002<\/p>\n<h2 id=\"%e9%8c%af%e8%aa%a4%e5%8e%9f%e5%9b%a0%e5%88%86%e6%9e%90-xSSnopwwCH\">\u932f\u8aa4\u539f\u56e0\u5206\u6790<\/h2>\n<p>MySQL\u4e2d\u7684\u5b58\u5132\u904e\u7a0b\u548c\u51fd\u6578\u662f\u7528\u4f86\u57f7\u884c\u4e00\u7cfb\u5217SQL\u8a9e\u53e5\u7684\u7a0b\u5e8f\u3002\u7576\u4f60\u5275\u5efa\u4e00\u500b\u51fd\u6578\u6642\uff0c\u5fc5\u9808\u78ba\u4fdd\u5b83\u5728\u57f7\u884c\u7d50\u675f\u6642\u8fd4\u56de\u4e00\u500b\u503c\u3002\u5982\u679c\u51fd\u6578\u5728\u57f7\u884c\u904e\u7a0b\u4e2d\u6c92\u6709\u9047\u5230RETURN\u8a9e\u53e5\uff0c\u6216\u8005\u5728\u67d0\u4e9b\u689d\u4ef6\u4e0b\u672a\u80fd\u8fd4\u56de\u503c\uff0c\u5c31\u6703\u5c0e\u81f4\u932f\u8aa41320\u7684\u767c\u751f\u3002<\/p>\n<p>\u4ee5\u4e0b\u662f\u4e00\u4e9b\u53ef\u80fd\u5c0e\u81f4\u6b64\u932f\u8aa4\u7684\u60c5\u6cc1\uff1a<\/p>\n<ul>\n<li>\u51fd\u6578\u5167\u90e8\u7684\u908f\u8f2f\u932f\u8aa4\uff0c\u5c0e\u81f4\u67d0\u4e9b\u8def\u5f91\u672a\u8fd4\u56de\u503c\u3002<\/li>\n<li>\u4f7f\u7528\u4e86\u4e0d\u6b63\u78ba\u7684\u689d\u4ef6\u8a9e\u53e5\uff0c\u5c0e\u81f4\u51fd\u6578\u5728\u67d0\u4e9b\u60c5\u6cc1\u4e0b\u672a\u80fd\u57f7\u884cRETURN\u8a9e\u53e5\u3002<\/li>\n<li>\u51fd\u6578\u7684\u7d50\u69cb\u4e0d\u7b26\u5408MySQL\u7684\u8981\u6c42\uff0c\u4f8b\u5982\u672a\u6b63\u78ba\u5b9a\u7fa9\u8fd4\u56de\u985e\u578b\u3002<\/li>\n<\/ul>\n<h2 id=\"%e4%bf%ae%e5%be%a9%e6%96%b9%e6%b3%95-xSSnopwwCH\">\u4fee\u5fa9\u65b9\u6cd5<\/h2>\n<p>\u8981\u4fee\u5fa9MySQL\u932f\u8aa41320\uff0c\u958b\u767c\u8005\u9700\u8981\u6aa2\u67e5\u51fd\u6578\u7684\u4ee3\u78bc\uff0c\u78ba\u4fdd\u6bcf\u4e00\u689d\u53ef\u80fd\u7684\u57f7\u884c\u8def\u5f91\u90fd\u80fd\u8fd4\u56de\u4e00\u500b\u503c\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5177\u9ad4\u7684\u4fee\u5fa9\u6b65\u9a5f\uff1a<\/p>\n<h3 id=\"1-%e6%aa%a2%e6%9f%a5%e5%87%bd%e6%95%b8%e7%9a%84%e8%bf%94%e5%9b%9e%e9%a1%9e%e5%9e%8b-xSSnopwwCH\">1. \u6aa2\u67e5\u51fd\u6578\u7684\u8fd4\u56de\u985e\u578b<\/h3>\n<p>\u9996\u5148\uff0c\u78ba\u4fdd\u51fd\u6578\u7684\u8fd4\u56de\u985e\u578b\u5df2\u6b63\u78ba\u5b9a\u7fa9\u3002\u4f8b\u5982\uff0c\u5982\u679c\u51fd\u6578\u61c9\u8a72\u8fd4\u56de\u4e00\u500b\u6574\u6578\uff0c\u5247\u61c9\u5728\u51fd\u6578\u5b9a\u7fa9\u4e2d\u660e\u78ba\u6307\u5b9a\uff1a<\/p>\n<pre><code>CREATE FUNCTION my_function() RETURNS INT\nBEGIN\n    -- \u51fd\u6578\u908f\u8f2f\nEND;<\/code><\/pre>\n<h3 id=\"2-%e7%a2%ba%e4%bf%9d%e6%af%8f%e5%80%8b%e5%9f%b7%e8%a1%8c%e8%b7%af%e5%be%91%e9%83%bd%e6%9c%89return%e8%aa%9e%e5%8f%a5-xSSnopwwCH\">2. \u78ba\u4fdd\u6bcf\u500b\u57f7\u884c\u8def\u5f91\u90fd\u6709RETURN\u8a9e\u53e5<\/h3>\n<p>\u6aa2\u67e5\u51fd\u6578\u5167\u90e8\u7684\u908f\u8f2f\uff0c\u78ba\u4fdd\u6bcf\u500b\u53ef\u80fd\u7684\u57f7\u884c\u8def\u5f91\u90fd\u80fd\u5230\u9054RETURN\u8a9e\u53e5\u3002\u4f8b\u5982\uff1a<\/p>\n<pre><code>CREATE FUNCTION my_function(param INT) RETURNS INT\nBEGIN\n    IF param &gt; 0 THEN\n        RETURN param;\n    ELSE\n        RETURN 0;  -- \u78ba\u4fdd\u5728\u6240\u6709\u60c5\u6cc1\u4e0b\u90fd\u6709\u8fd4\u56de\u503c\n    END IF;\nEND;<\/code><\/pre>\n<h3 id=\"3-%e4%bd%bf%e7%94%a8else%e8%aa%9e%e5%8f%a5%e8%99%95%e7%90%86%e6%89%80%e6%9c%89%e6%83%85%e6%b3%81-xSSnopwwCH\">3. \u4f7f\u7528ELSE\u8a9e\u53e5\u8655\u7406\u6240\u6709\u60c5\u6cc1<\/h3>\n<p>\u5728\u51fd\u6578\u4e2d\u4f7f\u7528ELSE\u8a9e\u53e5\u4f86\u8655\u7406\u6240\u6709\u53ef\u80fd\u7684\u60c5\u6cc1\uff0c\u9019\u6a23\u53ef\u4ee5\u78ba\u4fdd\u5373\u4f7f\u5728\u4e0d\u7b26\u5408\u9810\u671f\u7684\u60c5\u6cc1\u4e0b\u4e5f\u80fd\u8fd4\u56de\u4e00\u500b\u503c\uff1a<\/p>\n<pre><code>CREATE FUNCTION my_function(param INT) RETURNS INT\nBEGIN\n    IF param &gt; 0 THEN\n        RETURN param;\n    ELSEIF param = 0 THEN\n        RETURN 1;\n    ELSE\n        RETURN -1;  -- \u78ba\u4fdd\u6240\u6709\u60c5\u6cc1\u90fd\u6709\u8fd4\u56de\u503c\n    END IF;\nEND;<\/code><\/pre>\n<h2 id=\"%e6%b8%ac%e8%a9%a6%e5%92%8c%e9%a9%97%e8%ad%89-xSSnopwwCH\">\u6e2c\u8a66\u548c\u9a57\u8b49<\/h2>\n<p>\u5728\u4fee\u5fa9\u4e86\u51fd\u6578\u5f8c\uff0c\u52d9\u5fc5\u9032\u884c\u6e2c\u8a66\u4ee5\u78ba\u4fdd\u932f\u8aa4\u5df2\u88ab\u4fee\u5fa9\u3002\u53ef\u4ee5\u901a\u904e\u57f7\u884c\u51fd\u6578\u4e26\u6aa2\u67e5\u8fd4\u56de\u503c\u4f86\u9a57\u8b49\u5176\u6b63\u78ba\u6027\uff1a<\/p>\n<pre><code>SELECT my_function(5);  -- \u61c9\u8fd4\u56de5\nSELECT my_function(0);   -- \u61c9\u8fd4\u56de1\nSELECT my_function(-1);  -- \u61c9\u8fd4\u56de-1\n<\/code><\/pre>\n<h2 id=\"%e7%b8%bd%e7%b5%90-xSSnopwwCH\">\u7e3d\u7d50<\/h2>\n<p>MySQL\u932f\u8aa41320\u901a\u5e38\u662f\u7531\u65bc\u51fd\u6578\u672a\u6b63\u78ba\u8fd4\u56de\u503c\u6240\u5f15\u8d77\u7684\u3002\u901a\u904e\u6aa2\u67e5\u51fd\u6578\u7684\u8fd4\u56de\u985e\u578b\u3001\u78ba\u4fdd\u6bcf\u500b\u57f7\u884c\u8def\u5f91\u90fd\u6709RETURN\u8a9e\u53e5\u4ee5\u53ca\u4f7f\u7528ELSE\u8a9e\u53e5\u4f86\u8655\u7406\u6240\u6709\u60c5\u6cc1\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u4fee\u5fa9\u6b64\u932f\u8aa4\u3002\u5c0d\u65bc\u9700\u8981\u7a69\u5b9a\u548c\u9ad8\u6548\u6578\u64da\u5eab\u7ba1\u7406\u7684\u7528\u6236\uff0c\u9078\u64c7\u5408\u9069\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u89e3\u6c7a\u65b9\u6848\u662f\u81f3\u95dc\u91cd\u8981\u7684\uff0c\u9019\u6a23\u53ef\u4ee5\u78ba\u4fdd\u60a8\u7684\u61c9\u7528\u7a0b\u5e8f\u5728\u904b\u884c\u6642\u4e0d\u6703\u53d7\u5230\u6b64\u985e\u932f\u8aa4\u7684\u5f71\u97ff\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4fee\u5fa9MySQL\u932f\u8aa41320 (ER_SP_NORETURNEND) \u7684\u65b9\u6cd5\uff0c\u78ba\u4fdd\u51fd\u6578\u5728\u7d50\u675f\u6642\u6b63\u78ba\u8fd4\u56de\u503c\uff0c\u907f\u514d\u672a\u8fd4\u56de\u7684\u60c5\u6cc1\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-178434","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/178434","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=178434"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/178434\/revisions"}],"predecessor-version":[{"id":178435,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/178434\/revisions\/178435"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=178434"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=178434"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=178434"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}