{"id":178454,"date":"2024-11-08T18:06:24","date_gmt":"2024-11-08T10:06:24","guid":{"rendered":"https:\/\/server.hk\/cnblog\/178454\/"},"modified":"2024-11-08T18:06:25","modified_gmt":"2024-11-08T10:06:25","slug":"%e5%a6%82%e4%bd%95%e4%bf%ae%e5%be%a9mysql%e9%8c%af%e8%aa%a41331-sqlstate-42000-er_sp_dup_cond-%e9%87%8d%e8%a4%87%e7%9a%84%e6%a2%9d%e4%bb%b6%ef%bc%9as","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/178454\/","title":{"rendered":"\u5982\u4f55\u4fee\u5fa9MySQL\u932f\u8aa41331 &#8211; SQLSTATE: 42000 (ER_SP_DUP_COND) \u91cd\u8907\u7684\u689d\u4ef6\uff1a%s"},"content":{"rendered":"<h1 id=\"%e5%a6%82%e4%bd%95%e4%bf%ae%e5%be%a9mysql%e9%8c%af%e8%aa%a41331-sqlstate-42000-er_sp_dup_cond-%e9%87%8d%e8%a4%87%e7%9a%84%e6%a2%9d%e4%bb%b6%ef%bc%9as-jaLQxUuIVS\">\u5982\u4f55\u4fee\u5fa9MySQL\u932f\u8aa41331 &#8211; SQLSTATE: 42000 (ER_SP_DUP_COND) \u91cd\u8907\u7684\u689d\u4ef6\uff1a%s<\/h1>\n<p>\u5728\u4f7f\u7528MySQL\u6578\u64da\u5eab\u6642\uff0c\u958b\u767c\u8005\u53ef\u80fd\u6703\u9047\u5230\u5404\u7a2e\u932f\u8aa4\uff0c\u5176\u4e2d\u4e4b\u4e00\u5c31\u662f\u932f\u8aa41331\uff0c\u8a72\u932f\u8aa4\u7684SQLSTATE\u4ee3\u78bc\u70ba42000\uff0c\u8868\u793a\u5b58\u5728\u91cd\u8907\u7684\u689d\u4ef6\u3002\u9019\u901a\u5e38\u767c\u751f\u5728\u5b58\u5132\u904e\u7a0b\u4e2d\uff0c\u7576\u958b\u767c\u8005\u5617\u8a66\u5b9a\u7fa9\u4e00\u500b\u689d\u4ef6\u6642\uff0c\u537b\u4e0d\u5c0f\u5fc3\u91cd\u8907\u4e86\u76f8\u540c\u7684\u689d\u4ef6\uff0c\u5c0e\u81f4MySQL\u7121\u6cd5\u6b63\u78ba\u89e3\u6790\u8a72\u5b58\u5132\u904e\u7a0b\u3002<\/p>\n<h2 id=\"%e9%8c%af%e8%aa%a4%e5%8e%9f%e5%9b%a0%e5%88%86%e6%9e%90-jaLQxUuIVS\">\u932f\u8aa4\u539f\u56e0\u5206\u6790<\/h2>\n<p>\u932f\u8aa41331\u7684\u4e3b\u8981\u539f\u56e0\u662f\u5b58\u5132\u904e\u7a0b\u4e2d\u7684\u689d\u4ef6\u91cd\u8907\u3002\u9019\u53ef\u80fd\u662f\u7531\u65bc\u4ee5\u4e0b\u5e7e\u500b\u539f\u56e0\u9020\u6210\u7684\uff1a<\/p>\n<ul>\n<li><strong>\u908f\u8f2f\u932f\u8aa4\uff1a<\/strong>\u5728\u7de8\u5beb\u5b58\u5132\u904e\u7a0b\u6642\uff0c\u958b\u767c\u8005\u53ef\u80fd\u4e0d\u5c0f\u5fc3\u91cd\u8907\u4e86\u67d0\u4e9b\u689d\u4ef6\uff0c\u5c0e\u81f4MySQL\u7121\u6cd5\u6b63\u78ba\u57f7\u884c\u3002<\/li>\n<li><strong>\u8907\u88fd\u7c98\u8cbc\u932f\u8aa4\uff1a<\/strong>\u5728\u7de8\u5beb\u4ee3\u78bc\u6642\uff0c\u958b\u767c\u8005\u53ef\u80fd\u6703\u4e0d\u5c0f\u5fc3\u8907\u88fd\u4e86\u67d0\u4e9b\u884c\uff0c\u5c0e\u81f4\u91cd\u8907\u7684\u689d\u4ef6\u51fa\u73fe\u3002<\/li>\n<li><strong>\u4e0d\u7576\u7684\u689d\u4ef6\u7d50\u69cb\uff1a<\/strong>\u5728\u4f7f\u7528IF\u3001CASE\u7b49\u8a9e\u53e5\u6642\uff0c\u689d\u4ef6\u7684\u7d50\u69cb\u4e0d\u7576\u4e5f\u53ef\u80fd\u5c0e\u81f4\u91cd\u8907\u3002<\/li>\n<\/ul>\n<h2 id=\"%e5%a6%82%e4%bd%95%e4%bf%ae%e5%be%a9%e9%8c%af%e8%aa%a41331-jaLQxUuIVS\">\u5982\u4f55\u4fee\u5fa9\u932f\u8aa41331<\/h2>\n<p>\u4fee\u5fa9MySQL\u932f\u8aa41331\u7684\u904e\u7a0b\u901a\u5e38\u6d89\u53ca\u4ee5\u4e0b\u5e7e\u500b\u6b65\u9a5f\uff1a<\/p>\n<h3 id=\"1-%e6%aa%a2%e6%9f%a5%e5%ad%98%e5%84%b2%e9%81%8e%e7%a8%8b%e4%bb%a3%e7%a2%bc-jaLQxUuIVS\">1. \u6aa2\u67e5\u5b58\u5132\u904e\u7a0b\u4ee3\u78bc<\/h3>\n<p>\u9996\u5148\uff0c\u60a8\u9700\u8981\u4ed4\u7d30\u6aa2\u67e5\u5b58\u5132\u904e\u7a0b\u7684\u4ee3\u78bc\uff0c\u7279\u5225\u662f\u689d\u4ef6\u8a9e\u53e5\u90e8\u5206\u3002\u78ba\u4fdd\u6c92\u6709\u91cd\u8907\u7684\u689d\u4ef6\u3002\u4f8b\u5982\uff0c\u4ee5\u4e0b\u662f\u4e00\u500b\u53ef\u80fd\u5c0e\u81f4\u932f\u8aa4\u7684\u5b58\u5132\u904e\u7a0b\u793a\u4f8b\uff1a<\/p>\n<pre><code>\nDELIMITER \/\/\nCREATE PROCEDURE example_procedure(IN param1 INT)\nBEGIN\n    IF param1 = 1 THEN\n        -- \u57f7\u884c\u67d0\u4e9b\u64cd\u4f5c\n    ELSEIF param1 = 1 THEN  -- \u91cd\u8907\u7684\u689d\u4ef6\n        -- \u57f7\u884c\u5176\u4ed6\u64cd\u4f5c\n    END IF;\nEND \/\/\nDELIMITER ;\n<\/code><\/pre>\n<p>\u5728\u9019\u500b\u4f8b\u5b50\u4e2d\uff0c\u7b2c\u4e8c\u500bIF\u689d\u4ef6\u8207\u7b2c\u4e00\u500bIF\u689d\u4ef6\u91cd\u8907\uff0c\u9019\u5c07\u5c0e\u81f4\u932f\u8aa41331\u3002\u60a8\u9700\u8981\u522a\u9664\u6216\u4fee\u6539\u91cd\u8907\u7684\u689d\u4ef6\u3002<\/p>\n<h3 id=\"2-%e6%b8%ac%e8%a9%a6%e5%ad%98%e5%84%b2%e9%81%8e%e7%a8%8b-jaLQxUuIVS\">2. \u6e2c\u8a66\u5b58\u5132\u904e\u7a0b<\/h3>\n<p>\u5728\u4fee\u5fa9\u4e86\u4ee3\u78bc\u5f8c\uff0c\u60a8\u61c9\u8a72\u6e2c\u8a66\u5b58\u5132\u904e\u7a0b\u4ee5\u78ba\u4fdd\u5176\u6b63\u5e38\u904b\u884c\u3002\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u4f86\u8abf\u7528\u5b58\u5132\u904e\u7a0b\uff1a<\/p>\n<pre><code>\nCALL example_procedure(1);\n<\/code><\/pre>\n<p>\u5982\u679c\u5b58\u5132\u904e\u7a0b\u80fd\u5920\u6b63\u78ba\u57f7\u884c\u800c\u4e0d\u5831\u932f\uff0c\u5247\u8868\u793a\u554f\u984c\u5df2\u7d93\u89e3\u6c7a\u3002<\/p>\n<h3 id=\"3-%e4%bd%bf%e7%94%a8%e8%aa%bf%e8%a9%a6%e5%b7%a5%e5%85%b7-jaLQxUuIVS\">3. \u4f7f\u7528\u8abf\u8a66\u5de5\u5177<\/h3>\n<p>\u5982\u679c\u60a8\u4ecd\u7136\u7121\u6cd5\u627e\u5230\u554f\u984c\u6240\u5728\uff0c\u53ef\u4ee5\u8003\u616e\u4f7f\u7528MySQL\u7684\u8abf\u8a66\u5de5\u5177\uff0c\u4f8b\u5982MySQL Workbench\uff0c\u4f86\u5e6b\u52a9\u60a8\u5206\u6790\u5b58\u5132\u904e\u7a0b\u7684\u57f7\u884c\u904e\u7a0b\u3002\u9019\u4e9b\u5de5\u5177\u53ef\u4ee5\u63d0\u4f9b\u66f4\u8a73\u7d30\u7684\u932f\u8aa4\u4fe1\u606f\uff0c\u5e6b\u52a9\u60a8\u5b9a\u4f4d\u554f\u984c\u3002<\/p>\n<h2 id=\"%e9%a0%90%e9%98%b2%e6%8e%aa%e6%96%bd-jaLQxUuIVS\">\u9810\u9632\u63aa\u65bd<\/h2>\n<p>\u70ba\u4e86\u907f\u514d\u672a\u4f86\u518d\u6b21\u51fa\u73fe\u932f\u8aa41331\uff0c\u60a8\u53ef\u4ee5\u63a1\u53d6\u4ee5\u4e0b\u9810\u9632\u63aa\u65bd\uff1a<\/p>\n<ul>\n<li><strong>\u4ee3\u78bc\u5be9\u67e5\uff1a<\/strong>\u5728\u63d0\u4ea4\u4ee3\u78bc\u4e4b\u524d\uff0c\u9032\u884c\u4ee3\u78bc\u5be9\u67e5\uff0c\u4ee5\u78ba\u4fdd\u6c92\u6709\u91cd\u8907\u7684\u689d\u4ef6\u3002<\/li>\n<li><strong>\u4f7f\u7528\u7248\u672c\u63a7\u5236\u7cfb\u7d71\uff1a<\/strong>\u4f7f\u7528Git\u7b49\u7248\u672c\u63a7\u5236\u7cfb\u7d71\u4f86\u8ddf\u8e2a\u4ee3\u78bc\u8b8a\u66f4\uff0c\u9019\u6a23\u53ef\u4ee5\u66f4\u5bb9\u6613\u5730\u767c\u73fe\u548c\u4fee\u5fa9\u932f\u8aa4\u3002<\/li>\n<li><strong>\u7de8\u5beb\u55ae\u5143\u6e2c\u8a66\uff1a<\/strong>\u70ba\u5b58\u5132\u904e\u7a0b\u7de8\u5beb\u55ae\u5143\u6e2c\u8a66\uff0c\u4ee5\u78ba\u4fdd\u5176\u5728\u4e0d\u540c\u60c5\u6cc1\u4e0b\u7684\u6b63\u78ba\u6027\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-jaLQxUuIVS\">\u7e3d\u7d50<\/h2>\n<p>MySQL\u932f\u8aa41331 &#8211; SQLSTATE: 42000 (ER_SP_DUP_COND) \u662f\u4e00\u500b\u5e38\u898b\u7684\u932f\u8aa4\uff0c\u901a\u5e38\u7531\u65bc\u5b58\u5132\u904e\u7a0b\u4e2d\u7684\u689d\u4ef6\u91cd\u8907\u6240\u5f15\u8d77\u3002\u901a\u904e\u4ed4\u7d30\u6aa2\u67e5\u4ee3\u78bc\u3001\u6e2c\u8a66\u5b58\u5132\u904e\u7a0b\u4ee5\u53ca\u4f7f\u7528\u8abf\u8a66\u5de5\u5177\uff0c\u60a8\u53ef\u4ee5\u6709\u6548\u5730\u4fee\u5fa9\u6b64\u932f\u8aa4\u3002\u6b64\u5916\uff0c\u63a1\u53d6\u9069\u7576\u7684\u9810\u9632\u63aa\u65bd\u53ef\u4ee5\u5e6b\u52a9\u60a8\u907f\u514d\u672a\u4f86\u518d\u6b21\u9047\u5230\u985e\u4f3c\u554f\u984c\u3002\u5982\u679c\u60a8\u9700\u8981\u7a69\u5b9a\u7684\u6578\u64da\u5eab\u74b0\u5883\uff0c\u8003\u616e\u4f7f\u7528\u6211\u5011\u7684<a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a>\u89e3\u6c7a\u65b9\u6848\uff0c\u4ee5\u78ba\u4fdd\u60a8\u7684\u61c9\u7528\u7a0b\u5e8f\u904b\u884c\u9806\u5229\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5b78\u7fd2\u5982\u4f55\u4fee\u5fa9MySQL\u932f\u8aa41331 (ER_SP_DUP_COND)\uff0c\u89e3\u6c7a\u91cd\u8907\u689d\u4ef6\u554f\u984c\uff0c\u63d0\u5347\u6578\u64da\u5eab\u6027\u80fd\u8207\u7a69\u5b9a\u6027\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-178454","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/178454","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=178454"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/178454\/revisions"}],"predecessor-version":[{"id":178455,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/178454\/revisions\/178455"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=178454"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=178454"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=178454"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}