{"id":178448,"date":"2024-11-08T18:03:19","date_gmt":"2024-11-08T10:03:19","guid":{"rendered":"https:\/\/server.hk\/cnblog\/178448\/"},"modified":"2024-11-08T18:03:20","modified_gmt":"2024-11-08T10:03:20","slug":"%e5%a6%82%e4%bd%95%e4%bf%ae%e5%be%a9mysql%e9%8c%af%e8%aa%a41328-sqlstate-02000-er_sp_fetch_no_data-%e6%b2%92%e6%9c%89%e8%a6%81fetch%e7%9a%84%e6%95%b8%e6%93%9a","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/178448\/","title":{"rendered":"\u5982\u4f55\u4fee\u5fa9MySQL\u932f\u8aa41328 &#8211; SQLSTATE: 02000 (ER_SP_FETCH_NO_DATA) \u6c92\u6709\u8981FETCH\u7684\u6578\u64da"},"content":{"rendered":"<h1 id=\"%e5%a6%82%e4%bd%95%e4%bf%ae%e5%be%a9mysql%e9%8c%af%e8%aa%a41328-sqlstate-02000-er_sp_fetch_no_data-%e6%b2%92%e6%9c%89%e8%a6%81fetch%e7%9a%84%e6%95%b8%e6%93%9a-nGDaDQMXsM\">\u5982\u4f55\u4fee\u5fa9MySQL\u932f\u8aa41328 &#8211; SQLSTATE: 02000 (ER_SP_FETCH_NO_DATA) \u6c92\u6709\u8981FETCH\u7684\u6578\u64da<\/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\u8aa41328\uff0c\u8a72\u932f\u8aa4\u7684\u4ee3\u78bc\u70baSQLSTATE: 02000\uff0c\u8868\u793a\u201c\u6c92\u6709\u8981FETCH\u7684\u6578\u64da\u201d\u3002\u9019\u500b\u932f\u8aa4\u901a\u5e38\u767c\u751f\u5728\u5b58\u5132\u904e\u7a0b\u4e2d\uff0c\u7576\u4f60\u5617\u8a66\u5f9e\u4e00\u500b\u7d50\u679c\u96c6\u4e2d\u63d0\u53d6\u6578\u64da\uff0c\u4f46\u8a72\u7d50\u679c\u96c6\u5df2\u7d93\u6c92\u6709\u66f4\u591a\u7684\u6578\u64da\u53ef\u4f9b\u63d0\u53d6\u6642\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0e\u9019\u500b\u932f\u8aa4\u7684\u539f\u56e0\u53ca\u5176\u89e3\u6c7a\u65b9\u6848\u3002<\/p>\n<h2 id=\"%e9%8c%af%e8%aa%a41328%e7%9a%84%e5%8e%9f%e5%9b%a0-nGDaDQMXsM\">\u932f\u8aa41328\u7684\u539f\u56e0<\/h2>\n<p>\u932f\u8aa41328\u901a\u5e38\u51fa\u73fe\u5728\u4ee5\u4e0b\u5e7e\u7a2e\u60c5\u6cc1\u4e0b\uff1a<\/p>\n<ul>\n<li><strong>\u7d50\u679c\u96c6\u5df2\u7d93\u7d50\u675f\uff1a<\/strong>\u7576\u4f60\u5728\u5b58\u5132\u904e\u7a0b\u4e2d\u4f7f\u7528FETCH\u8a9e\u53e5\u63d0\u53d6\u6578\u64da\u6642\uff0c\u5982\u679c\u7d50\u679c\u96c6\u5df2\u7d93\u6c92\u6709\u66f4\u591a\u7684\u884c\u53ef\u4f9b\u63d0\u53d6\uff0c\u5247\u6703\u5f15\u767c\u6b64\u932f\u8aa4\u3002<\/li>\n<li><strong>\u67e5\u8a62\u672a\u8fd4\u56de\u4efb\u4f55\u7d50\u679c\uff1a<\/strong>\u5982\u679c\u4f60\u7684\u67e5\u8a62\u689d\u4ef6\u904e\u65bc\u56b4\u683c\uff0c\u5c0e\u81f4\u67e5\u8a62\u7d50\u679c\u70ba\u7a7a\uff0c\u5247\u5728\u5617\u8a66FETCH\u6642\u4e5f\u6703\u51fa\u73fe\u6b64\u932f\u8aa4\u3002<\/li>\n<li><strong>\u6e38\u6a19\u672a\u6b63\u78ba\u6253\u958b\uff1a<\/strong>\u5728\u4f7f\u7528\u6e38\u6a19\u4e4b\u524d\uff0c\u5fc5\u9808\u78ba\u4fdd\u6e38\u6a19\u5df2\u7d93\u6b63\u78ba\u6253\u958b\u3002\u5982\u679c\u6e38\u6a19\u672a\u6b63\u78ba\u6253\u958b\uff0c\u5247\u5728FETCH\u6642\u6703\u51fa\u73fe\u932f\u8aa4\u3002<\/li>\n<\/ul>\n<h2 id=\"%e5%a6%82%e4%bd%95%e4%bf%ae%e5%be%a9%e9%8c%af%e8%aa%a41328-nGDaDQMXsM\">\u5982\u4f55\u4fee\u5fa9\u932f\u8aa41328<\/h2>\n<p>\u4fee\u5fa9\u932f\u8aa41328\u7684\u65b9\u6cd5\u53d6\u6c7a\u65bc\u5177\u9ad4\u7684\u60c5\u6cc1\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u898b\u7684\u89e3\u6c7a\u65b9\u6848\uff1a<\/p>\n<h3 id=\"1-%e6%aa%a2%e6%9f%a5%e6%9f%a5%e8%a9%a2%e6%a2%9d%e4%bb%b6-nGDaDQMXsM\">1. \u6aa2\u67e5\u67e5\u8a62\u689d\u4ef6<\/h3>\n<p>\u9996\u5148\uff0c\u6aa2\u67e5\u4f60\u7684SQL\u67e5\u8a62\u689d\u4ef6\uff0c\u78ba\u4fdd\u5b83\u5011\u4e0d\u6703\u5c0e\u81f4\u67e5\u8a62\u7d50\u679c\u70ba\u7a7a\u3002\u4f60\u53ef\u4ee5\u5728MySQL\u547d\u4ee4\u884c\u6216\u5176\u4ed6\u6578\u64da\u5eab\u7ba1\u7406\u5de5\u5177\u4e2d\u55ae\u7368\u57f7\u884c\u67e5\u8a62\uff0c\u4ee5\u78ba\u8a8d\u662f\u5426\u6709\u6578\u64da\u8fd4\u56de\u3002<\/p>\n<pre><code>SELECT * FROM your_table WHERE your_condition;<\/code><\/pre>\n<h3 id=\"2-%e7%a2%ba%e4%bf%9d%e6%b8%b8%e6%a8%99%e6%ad%a3%e7%a2%ba%e4%bd%bf%e7%94%a8-nGDaDQMXsM\">2. \u78ba\u4fdd\u6e38\u6a19\u6b63\u78ba\u4f7f\u7528<\/h3>\n<p>\u5728\u4f7f\u7528\u6e38\u6a19\u4e4b\u524d\uff0c\u5fc5\u9808\u78ba\u4fdd\u6e38\u6a19\u5df2\u7d93\u6b63\u78ba\u6253\u958b\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u6b63\u78ba\u4f7f\u7528\u6e38\u6a19\u7684\u7bc4\u4f8b\uff1a<\/p>\n<pre><code>\nDECLARE your_cursor CURSOR FOR SELECT * FROM your_table WHERE your_condition;\nOPEN your_cursor;\nFETCH your_cursor INTO your_variable;\n<\/code><\/pre>\n<p>\u5728FETCH\u4e4b\u524d\uff0c\u8acb\u78ba\u4fdd\u6e38\u6a19\u5df2\u7d93\u6210\u529f\u6253\u958b\uff0c\u4e26\u4e14\u67e5\u8a62\u80fd\u5920\u8fd4\u56de\u6578\u64da\u3002<\/p>\n<h3 id=\"3-%e4%bd%bf%e7%94%a8%e6%a2%9d%e4%bb%b6%e6%aa%a2%e6%9f%a5-nGDaDQMXsM\">3. \u4f7f\u7528\u689d\u4ef6\u6aa2\u67e5<\/h3>\n<p>\u5728\u57f7\u884cFETCH\u4e4b\u524d\uff0c\u53ef\u4ee5\u4f7f\u7528\u689d\u4ef6\u6aa2\u67e5\u4f86\u78ba\u4fdd\u7d50\u679c\u96c6\u4e2d\u6709\u6578\u64da\u3002\u4f8b\u5982\uff0c\u53ef\u4ee5\u4f7f\u7528GET DIAGNOSTICS\u8a9e\u53e5\u4f86\u6aa2\u67e5\u5f71\u97ff\u7684\u884c\u6578\uff1a<\/p>\n<pre><code>\nDECLARE CONTINUE HANDLER FOR NOT FOUND SET done = TRUE;\nOPEN your_cursor;\nFETCH your_cursor INTO your_variable;\nIF done THEN\n    -- \u8655\u7406\u6c92\u6709\u6578\u64da\u7684\u60c5\u6cc1\nEND IF;\n<\/code><\/pre>\n<h2 id=\"%e7%b8%bd%e7%b5%90-nGDaDQMXsM\">\u7e3d\u7d50<\/h2>\n<p>MySQL\u932f\u8aa41328\uff08SQLSTATE: 02000\uff09\u901a\u5e38\u662f\u7531\u65bc\u7d50\u679c\u96c6\u5df2\u7d93\u7d50\u675f\u6216\u67e5\u8a62\u672a\u8fd4\u56de\u4efb\u4f55\u7d50\u679c\u6240\u5f15\u8d77\u7684\u3002\u901a\u904e\u6aa2\u67e5\u67e5\u8a62\u689d\u4ef6\u3001\u78ba\u4fdd\u6e38\u6a19\u6b63\u78ba\u4f7f\u7528\u4ee5\u53ca\u5728FETCH\u4e4b\u524d\u9032\u884c\u689d\u4ef6\u6aa2\u67e5\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u4fee\u5fa9\u6b64\u932f\u8aa4\u3002\u5c0d\u65bc\u9700\u8981\u7a69\u5b9a\u548c\u9ad8\u6548\u6578\u64da\u5eab\u64cd\u4f5c\u7684\u61c9\u7528\uff0c\u9078\u64c7\u5408\u9069\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u65b9\u6848\u662f\u81f3\u95dc\u91cd\u8981\u7684\uff0c\u9019\u6a23\u53ef\u4ee5\u78ba\u4fdd\u4f60\u7684\u6578\u64da\u5eab\u74b0\u5883\u7a69\u5b9a\u904b\u884c\uff0c\u4e26\u80fd\u5920\u5feb\u901f\u97ff\u61c9\u5404\u7a2e\u8acb\u6c42\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4fee\u5fa9MySQL\u932f\u8aa41328 (SQLSTATE: 02000) \u7684\u65b9\u6cd5\uff0c\u89e3\u6c7a\u5b58\u5132\u904e\u7a0b\u4e2dFETCH\u7121\u6578\u64da\u7684\u554f\u984c\uff0c\u63d0\u5347\u6578\u64da\u5eab\u64cd\u4f5c\u6548\u7387\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-178448","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/178448","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=178448"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/178448\/revisions"}],"predecessor-version":[{"id":178449,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/178448\/revisions\/178449"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=178448"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=178448"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=178448"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}