{"id":178442,"date":"2024-11-08T18:00:22","date_gmt":"2024-11-08T10:00:22","guid":{"rendered":"https:\/\/server.hk\/cnblog\/178442\/"},"modified":"2024-11-08T18:00:22","modified_gmt":"2024-11-08T10:00:22","slug":"%e5%a6%82%e4%bd%95%e4%bf%ae%e5%be%a9mysql%e9%8c%af%e8%aa%a41325-sqlstate-24000-er_sp_cursor_not_open-%e6%b8%b8%e6%a8%99%e6%9c%aa%e6%89%93%e9%96%8b","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/178442\/","title":{"rendered":"\u5982\u4f55\u4fee\u5fa9MySQL\u932f\u8aa41325 &#8211; SQLSTATE: 24000 (ER_SP_CURSOR_NOT_OPEN) \u6e38\u6a19\u672a\u6253\u958b"},"content":{"rendered":"<h1 id=\"%e5%a6%82%e4%bd%95%e4%bf%ae%e5%be%a9mysql%e9%8c%af%e8%aa%a41325-sqlstate-24000-er_sp_cursor_not_open-%e6%b8%b8%e6%a8%99%e6%9c%aa%e6%89%93%e9%96%8b-XhdbzBDmdt\">\u5982\u4f55\u4fee\u5fa9MySQL\u932f\u8aa41325 &#8211; SQLSTATE: 24000 (ER_SP_CURSOR_NOT_OPEN) \u6e38\u6a19\u672a\u6253\u958b<\/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\u8aa41325\uff0c\u8a72\u932f\u8aa4\u7684SQLSTATE\u4ee3\u78bc\u70ba24000\uff0c\u8868\u793a\u201c\u6e38\u6a19\u672a\u6253\u958b\u201d\u3002\u9019\u500b\u932f\u8aa4\u901a\u5e38\u767c\u751f\u5728\u5b58\u5132\u904e\u7a0b\u4e2d\uff0c\u7576\u958b\u767c\u8005\u5617\u8a66\u4f7f\u7528\u6e38\u6a19\u9032\u884c\u6578\u64da\u64cd\u4f5c\u6642\uff0c\u537b\u672a\u6b63\u78ba\u6253\u958b\u6e38\u6a19\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u8a72\u932f\u8aa4\u7684\u539f\u56e0\u53ca\u5176\u89e3\u6c7a\u65b9\u6848\u3002<\/p>\n<h2 id=\"%e9%8c%af%e8%aa%a4%e5%8e%9f%e5%9b%a0-XhdbzBDmdt\">\u932f\u8aa4\u539f\u56e0<\/h2>\n<p>MySQL\u4e2d\u7684\u6e38\u6a19\u662f\u4e00\u7a2e\u7528\u65bc\u904d\u6b77\u67e5\u8a62\u7d50\u679c\u96c6\u7684\u6578\u64da\u7d50\u69cb\u3002\u7576\u958b\u767c\u8005\u5728\u5b58\u5132\u904e\u7a0b\u4e2d\u4f7f\u7528\u6e38\u6a19\u6642\uff0c\u5fc5\u9808\u9075\u5faa\u7279\u5b9a\u7684\u6b65\u9a5f\u4f86\u6b63\u78ba\u5730\u6253\u958b\u548c\u4f7f\u7528\u6e38\u6a19\u3002\u932f\u8aa41325\u901a\u5e38\u7531\u4ee5\u4e0b\u5e7e\u500b\u539f\u56e0\u5f15\u8d77\uff1a<\/p>\n<ul>\n<li><strong>\u6e38\u6a19\u672a\u6b63\u78ba\u6253\u958b\uff1a<\/strong>\u5728\u4f7f\u7528\u6e38\u6a19\u4e4b\u524d\uff0c\u5fc5\u9808\u5148\u57f7\u884cOPEN\u8a9e\u53e5\u4f86\u6253\u958b\u6e38\u6a19\u3002\u5982\u679c\u5728\u4f7f\u7528FETCH\u8a9e\u53e5\u4e4b\u524d\u672a\u57f7\u884cOPEN\u8a9e\u53e5\uff0c\u5c31\u6703\u5c0e\u81f4\u6b64\u932f\u8aa4\u3002<\/li>\n<li><strong>\u6e38\u6a19\u5df2\u7d93\u95dc\u9589\uff1a<\/strong>\u5982\u679c\u6e38\u6a19\u5728\u4f7f\u7528\u4e4b\u524d\u5df2\u7d93\u88ab\u95dc\u9589\uff0c\u5247\u518d\u6b21\u5617\u8a66\u4f7f\u7528\u8a72\u6e38\u6a19\u4e5f\u6703\u5f15\u767c\u6b64\u932f\u8aa4\u3002<\/li>\n<li><strong>\u6e38\u6a19\u7bc4\u570d\u932f\u8aa4\uff1a<\/strong>\u5982\u679c\u6e38\u6a19\u7684\u67e5\u8a62\u7bc4\u570d\u4e0d\u6b63\u78ba\uff0c\u53ef\u80fd\u6703\u5c0e\u81f4\u6e38\u6a19\u7121\u6cd5\u6b63\u78ba\u6253\u958b\u3002<\/li>\n<\/ul>\n<h2 id=\"%e8%a7%a3%e6%b1%ba%e6%96%b9%e6%a1%88-XhdbzBDmdt\">\u89e3\u6c7a\u65b9\u6848<\/h2>\n<p>\u8981\u4fee\u5fa9MySQL\u932f\u8aa41325\uff0c\u958b\u767c\u8005\u9700\u8981\u6aa2\u67e5\u548c\u4fee\u6539\u5b58\u5132\u904e\u7a0b\u4e2d\u7684\u6e38\u6a19\u4f7f\u7528\u908f\u8f2f\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5177\u9ad4\u7684\u6b65\u9a5f\u548c\u793a\u4f8b\uff1a<\/p>\n<h3 id=\"1-%e7%a2%ba%e4%bf%9d%e6%b8%b8%e6%a8%99%e6%ad%a3%e7%a2%ba%e6%89%93%e9%96%8b-XhdbzBDmdt\">1. \u78ba\u4fdd\u6e38\u6a19\u6b63\u78ba\u6253\u958b<\/h3>\n<pre><code>DECLARE my_cursor CURSOR FOR SELECT column1 FROM my_table;\nOPEN my_cursor;<\/code><\/pre>\n<p>\u5728\u4f7f\u7528\u6e38\u6a19\u4e4b\u524d\uff0c\u5fc5\u9808\u5148\u8072\u660e\u6e38\u6a19\u4e26\u57f7\u884cOPEN\u8a9e\u53e5\u3002\u78ba\u4fdd\u9019\u4e9b\u8a9e\u53e5\u7684\u9806\u5e8f\u6b63\u78ba\u3002<\/p>\n<h3 id=\"2-%e6%aa%a2%e6%9f%a5%e6%b8%b8%e6%a8%99%e7%9a%84%e4%bd%bf%e7%94%a8%e7%af%84%e5%9c%8d-XhdbzBDmdt\">2. \u6aa2\u67e5\u6e38\u6a19\u7684\u4f7f\u7528\u7bc4\u570d<\/h3>\n<p>\u78ba\u4fdd\u6e38\u6a19\u67e5\u8a62\u7684SQL\u8a9e\u53e5\u662f\u6b63\u78ba\u7684\uff0c\u4e26\u4e14\u80fd\u5920\u8fd4\u56de\u7d50\u679c\u96c6\u3002\u4f8b\u5982\uff1a<\/p>\n<pre><code>DECLARE my_cursor CURSOR FOR SELECT column1 FROM my_table WHERE condition;<\/code><\/pre>\n<p>\u5982\u679c\u67e5\u8a62\u689d\u4ef6\u4e0d\u6b63\u78ba\uff0c\u6e38\u6a19\u53ef\u80fd\u7121\u6cd5\u6253\u958b\u3002<\/p>\n<h3 id=\"3-%e7%a2%ba%e4%bf%9d%e6%b8%b8%e6%a8%99%e6%9c%aa%e8%a2%ab%e9%97%9c%e9%96%89-XhdbzBDmdt\">3. \u78ba\u4fdd\u6e38\u6a19\u672a\u88ab\u95dc\u9589<\/h3>\n<p>\u5728\u4f7f\u7528\u6e38\u6a19\u4e4b\u524d\uff0c\u6aa2\u67e5\u6e38\u6a19\u662f\u5426\u5df2\u7d93\u88ab\u95dc\u9589\u3002\u5982\u679c\u6e38\u6a19\u5df2\u7d93\u95dc\u9589\uff0c\u5247\u9700\u8981\u91cd\u65b0\u6253\u958b\u5b83\uff1a<\/p>\n<pre><code>CLOSE my_cursor;\nOPEN my_cursor;<\/code><\/pre>\n<h3 id=\"4-%e4%bd%bf%e7%94%a8%e4%be%8b%e5%a4%96%e8%99%95%e7%90%86-XhdbzBDmdt\">4. \u4f7f\u7528\u4f8b\u5916\u8655\u7406<\/h3>\n<p>\u5728\u5b58\u5132\u904e\u7a0b\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528\u4f8b\u5916\u8655\u7406\u4f86\u6355\u7372\u548c\u8655\u7406\u932f\u8aa4\uff0c\u9019\u6a23\u53ef\u4ee5\u907f\u514d\u7a0b\u5e8f\u5d29\u6f70\u4e26\u63d0\u4f9b\u66f4\u597d\u7684\u932f\u8aa4\u4fe1\u606f\uff1a<\/p>\n<pre><code>BEGIN\n    DECLARE CONTINUE HANDLER FOR SQLEXCEPTION\n    BEGIN\n        -- \u932f\u8aa4\u8655\u7406\u908f\u8f2f\n    END;\n\n    OPEN my_cursor;\n    FETCH my_cursor INTO variable;\n    CLOSE my_cursor;\nEND;<\/code><\/pre>\n<h2 id=\"%e7%b8%bd%e7%b5%90-XhdbzBDmdt\">\u7e3d\u7d50<\/h2>\n<p>MySQL\u932f\u8aa41325\uff08SQLSTATE: 24000\uff09\u901a\u5e38\u662f\u7531\u65bc\u6e38\u6a19\u672a\u6b63\u78ba\u6253\u958b\u6216\u4f7f\u7528\u4e0d\u7576\u5f15\u8d77\u7684\u3002\u901a\u904e\u9075\u5faa\u6b63\u78ba\u7684\u6e38\u6a19\u64cd\u4f5c\u6b65\u9a5f\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u6709\u6548\u5730\u907f\u514d\u6b64\u932f\u8aa4\u3002\u78ba\u4fdd\u5728\u4f7f\u7528\u6e38\u6a19\u4e4b\u524d\u6b63\u78ba\u8072\u660e\u548c\u6253\u958b\u5b83\uff0c\u4e26\u6aa2\u67e5\u67e5\u8a62\u7684\u6b63\u78ba\u6027\uff0c\u9019\u6a23\u53ef\u4ee5\u63d0\u9ad8\u6578\u64da\u5eab\u64cd\u4f5c\u7684\u7a69\u5b9a\u6027\u548c\u53ef\u9760\u6027\u3002<\/p>\n<p>\u5982\u679c\u60a8\u9700\u8981\u66f4\u591a\u6709\u95dc<em><a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a><\/em>\u548c\u6578\u64da\u5eab\u7ba1\u7406\u7684\u8cc7\u8a0a\uff0c\u8acb\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u4ee5\u7372\u53d6\u66f4\u591a\u8cc7\u6e90\u548c\u652f\u6301\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5b78\u7fd2\u5982\u4f55\u4fee\u5fa9MySQL\u932f\u8aa41325 (ER_SP_CURSOR_NOT_OPEN)\uff0c\u89e3\u6c7a\u6e38\u6a19\u672a\u6253\u958b\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-178442","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/178442","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=178442"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/178442\/revisions"}],"predecessor-version":[{"id":178443,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/178442\/revisions\/178443"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=178442"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=178442"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=178442"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}