{"id":96786,"date":"2024-10-20T12:21:18","date_gmt":"2024-10-20T04:21:18","guid":{"rendered":"https:\/\/server.hk\/cnblog\/96786\/"},"modified":"2024-10-20T12:21:19","modified_gmt":"2024-10-20T04:21:19","slug":"postgresql-25008-held_cursor_requires_same_isolation_level-%e5%a0%b1%e9%8c%af-%e6%95%85%e9%9a%9c%e4%bf%ae%e5%be%a9-%e9%81%a0%e7%a8%8b%e8%99%95%e7%90%86","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/96786\/","title":{"rendered":"PostgreSQL 25008: held_cursor_requires_same_isolation_level \u5831\u932f \u6545\u969c\u4fee\u5fa9 \u9060\u7a0b\u8655\u7406"},"content":{"rendered":"<h1 id=\"postgresql-25008-held_cursor_requires_same_isolation_level-%e5%a0%b1%e9%8c%af-%e6%95%85%e9%9a%9c%e4%bf%ae%e5%be%a9-%e9%81%a0%e7%a8%8b%e8%99%95%e7%90%86-xJqXlFmGPP\">PostgreSQL 25008: held_cursor_requires_same_isolation_level \u5831\u932f \u6545\u969c\u4fee\u5fa9 \u9060\u7a0b\u8655\u7406<\/h1>\n<p>\u5728\u4f7f\u7528 PostgreSQL \u6578\u64da\u5eab\u6642\uff0c\u958b\u767c\u8005\u53ef\u80fd\u6703\u9047\u5230\u5404\u7a2e\u932f\u8aa4\uff0c\u5176\u4e2d\u4e4b\u4e00\u662f <code>PostgreSQL 25008: held_cursor_requires_same_isolation_level<\/code>\u3002\u9019\u500b\u932f\u8aa4\u901a\u5e38\u8207\u4e8b\u52d9\u9694\u96e2\u7d1a\u5225\u6709\u95dc\uff0c\u7279\u5225\u662f\u5728\u4f7f\u7528\u6e38\u6a19\u6642\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0e\u9019\u500b\u932f\u8aa4\u7684\u539f\u56e0\u3001\u5f71\u97ff\u4ee5\u53ca\u5982\u4f55\u9032\u884c\u6545\u969c\u4fee\u5fa9\u3002<\/p>\n<h2 id=\"%e9%8c%af%e8%aa%a4%e5%8e%9f%e5%9b%a0-xJqXlFmGPP\">\u932f\u8aa4\u539f\u56e0<\/h2>\n<p>\u7576\u4f60\u5728 PostgreSQL \u4e2d\u4f7f\u7528\u6e38\u6a19\u6642\uff0c\u7cfb\u7d71\u6703\u8981\u6c42\u6240\u6709\u6301\u6709\u7684\u6e38\u6a19\u5fc5\u9808\u5728\u76f8\u540c\u7684\u4e8b\u52d9\u9694\u96e2\u7d1a\u5225\u4e0b\u904b\u884c\u3002\u9019\u662f\u56e0\u70ba\u4e0d\u540c\u7684\u9694\u96e2\u7d1a\u5225\u6703\u5f71\u97ff\u6578\u64da\u7684\u53ef\u898b\u6027\u548c\u4e00\u81f4\u6027\u3002\u5982\u679c\u5728\u4e00\u500b\u4e8b\u52d9\u4e2d\u4f7f\u7528\u4e86\u4e0d\u540c\u7684\u9694\u96e2\u7d1a\u5225\uff0cPostgreSQL \u6703\u5831\u544a\u932f\u8aa4 25008\uff0c\u4ee5\u9632\u6b62\u6578\u64da\u4e0d\u4e00\u81f4\u7684\u60c5\u6cc1\u767c\u751f\u3002<\/p>\n<h3 id=\"%e4%ba%8b%e5%8b%99%e9%9a%94%e9%9b%a2%e7%b4%9a%e5%88%a5%e6%a6%82%e8%bf%b0-xJqXlFmGPP\">\u4e8b\u52d9\u9694\u96e2\u7d1a\u5225\u6982\u8ff0<\/h3>\n<p>PostgreSQL \u652f\u6301\u56db\u7a2e\u4e8b\u52d9\u9694\u96e2\u7d1a\u5225\uff1a<\/p>\n<ul>\n<li><strong>Read Uncommitted<\/strong>\uff1a\u5141\u8a31\u8b80\u53d6\u672a\u63d0\u4ea4\u7684\u6578\u64da\u3002<\/li>\n<li><strong>Read Committed<\/strong>\uff1a\u53ea\u5141\u8a31\u8b80\u53d6\u5df2\u63d0\u4ea4\u7684\u6578\u64da\u3002<\/li>\n<li><strong>Repeatable Read<\/strong>\uff1a\u5728\u540c\u4e00\u4e8b\u52d9\u4e2d\u591a\u6b21\u8b80\u53d6\u76f8\u540c\u7684\u6578\u64da\u6642\uff0c\u7d50\u679c\u4fdd\u6301\u4e00\u81f4\u3002<\/li>\n<li><strong>Serializable<\/strong>\uff1a\u63d0\u4f9b\u6700\u9ad8\u7684\u9694\u96e2\u7d1a\u5225\uff0c\u78ba\u4fdd\u4e8b\u52d9\u7684\u5b8c\u5168\u9694\u96e2\u3002<\/li>\n<\/ul>\n<p>\u7576\u4f60\u5728\u4e00\u500b\u4e8b\u52d9\u4e2d\u4f7f\u7528\u6e38\u6a19\u6642\uff0c\u5fc5\u9808\u78ba\u4fdd\u6240\u6709\u64cd\u4f5c\u90fd\u5728\u76f8\u540c\u7684\u9694\u96e2\u7d1a\u5225\u4e0b\u9032\u884c\uff0c\u5426\u5247\u5c31\u6703\u51fa\u73fe\u4e0a\u8ff0\u932f\u8aa4\u3002<\/p>\n<h2 id=\"%e6%95%85%e9%9a%9c%e4%bf%ae%e5%be%a9%e6%ad%a5%e9%a9%9f-xJqXlFmGPP\">\u6545\u969c\u4fee\u5fa9\u6b65\u9a5f<\/h2>\n<p>\u8981\u4fee\u5fa9 <code>PostgreSQL 25008<\/code> \u932f\u8aa4\uff0c\u53ef\u4ee5\u6309\u7167\u4ee5\u4e0b\u6b65\u9a5f\u9032\u884c\uff1a<\/p>\n<h3 id=\"1-%e6%aa%a2%e6%9f%a5%e4%ba%8b%e5%8b%99%e9%9a%94%e9%9b%a2%e7%b4%9a%e5%88%a5-xJqXlFmGPP\">1. \u6aa2\u67e5\u4e8b\u52d9\u9694\u96e2\u7d1a\u5225<\/h3>\n<p>\u9996\u5148\uff0c\u6aa2\u67e5\u7576\u524d\u4e8b\u52d9\u7684\u9694\u96e2\u7d1a\u5225\u3002\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b SQL \u67e5\u8a62\u4f86\u7372\u53d6\u7576\u524d\u7684\u9694\u96e2\u7d1a\u5225\uff1a<\/p>\n<pre><code>SHOW TRANSACTION ISOLATION;<\/code><\/pre>\n<p>\u78ba\u4fdd\u6240\u6709\u6e38\u6a19\u548c\u4e8b\u52d9\u90fd\u4f7f\u7528\u76f8\u540c\u7684\u9694\u96e2\u7d1a\u5225\u3002<\/p>\n<h3 id=\"2-%e7%b5%b1%e4%b8%80%e9%9a%94%e9%9b%a2%e7%b4%9a%e5%88%a5-xJqXlFmGPP\">2. \u7d71\u4e00\u9694\u96e2\u7d1a\u5225<\/h3>\n<p>\u5982\u679c\u767c\u73fe\u4e0d\u540c\u7684\u9694\u96e2\u7d1a\u5225\uff0c\u5247\u9700\u8981\u7d71\u4e00\u5b83\u5011\u3002\u53ef\u4ee5\u5728\u958b\u59cb\u4e8b\u52d9\u6642\u660e\u78ba\u6307\u5b9a\u9694\u96e2\u7d1a\u5225\uff0c\u4f8b\u5982\uff1a<\/p>\n<pre><code>BEGIN TRANSACTION ISOLATION LEVEL READ COMMITTED;<\/code><\/pre>\n<p>\u9019\u6a23\u53ef\u4ee5\u78ba\u4fdd\u5728\u8a72\u4e8b\u52d9\u4e2d\u6240\u6709\u64cd\u4f5c\u90fd\u4f7f\u7528\u76f8\u540c\u7684\u9694\u96e2\u7d1a\u5225\u3002<\/p>\n<h3 id=\"3-%e9%87%8d%e6%96%b0%e5%9f%b7%e8%a1%8c%e6%93%8d%e4%bd%9c-xJqXlFmGPP\">3. \u91cd\u65b0\u57f7\u884c\u64cd\u4f5c<\/h3>\n<p>\u5728\u7d71\u4e00\u9694\u96e2\u7d1a\u5225\u5f8c\uff0c\u91cd\u65b0\u57f7\u884c\u4e4b\u524d\u7684\u64cd\u4f5c\uff0c\u6aa2\u67e5\u662f\u5426\u4ecd\u7136\u51fa\u73fe\u932f\u8aa4\u3002\u5982\u679c\u554f\u984c\u4ecd\u7136\u5b58\u5728\uff0c\u5247\u9700\u8981\u9032\u4e00\u6b65\u8abf\u67e5\u3002<\/p>\n<h2 id=\"%e9%81%a0%e7%a8%8b%e8%99%95%e7%90%86-xJqXlFmGPP\">\u9060\u7a0b\u8655\u7406<\/h2>\n<p>\u5728\u67d0\u4e9b\u60c5\u6cc1\u4e0b\uff0c\u932f\u8aa4\u53ef\u80fd\u662f\u7531\u65bc\u9060\u7a0b\u9023\u63a5\u5f15\u8d77\u7684\u3002\u78ba\u4fdd\u6240\u6709\u9060\u7a0b\u5ba2\u6236\u7aef\u5728\u9023\u63a5\u5230 PostgreSQL \u6578\u64da\u5eab\u6642\uff0c\u4f7f\u7528\u76f8\u540c\u7684\u9694\u96e2\u7d1a\u5225\u3002\u53ef\u4ee5\u5728\u5ba2\u6236\u7aef\u7684\u9023\u63a5\u5b57\u7b26\u4e32\u4e2d\u6307\u5b9a\u9694\u96e2\u7d1a\u5225\uff0c\u4f8b\u5982\uff1a<\/p>\n<pre><code>jdbc:postgresql:\/\/host:port\/database?currentSchema=schema&amp;transactionIsolation=TRANSACTION_READ_COMMITTED<\/code><\/pre>\n<p>\u9019\u6a23\u53ef\u4ee5\u78ba\u4fdd\u6240\u6709\u9060\u7a0b\u9023\u63a5\u90fd\u9075\u5faa\u76f8\u540c\u7684\u4e8b\u52d9\u9694\u96e2\u898f\u5247\u3002<\/p>\n<h2 id=\"%e7%b8%bd%e7%b5%90-xJqXlFmGPP\">\u7e3d\u7d50<\/h2>\n<p>PostgreSQL \u7684 <code>25008: held_cursor_requires_same_isolation_level<\/code> \u932f\u8aa4\u901a\u5e38\u662f\u7531\u65bc\u4e8b\u52d9\u9694\u96e2\u7d1a\u5225\u4e0d\u4e00\u81f4\u5f15\u8d77\u7684\u3002\u901a\u904e\u6aa2\u67e5\u548c\u7d71\u4e00\u9694\u96e2\u7d1a\u5225\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u89e3\u6c7a\u6b64\u554f\u984c\u3002\u5c0d\u65bc\u9700\u8981\u9060\u7a0b\u8655\u7406\u7684\u60c5\u6cc1\uff0c\u78ba\u4fdd\u6240\u6709\u5ba2\u6236\u7aef\u4f7f\u7528\u76f8\u540c\u7684\u9694\u96e2\u7d1a\u5225\u4e5f\u662f\u81f3\u95dc\u91cd\u8981\u7684\u3002<\/p>\n<p>\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u7a69\u5b9a\u7684 <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u89e3\u6c7a\u65b9\u6848\u4f86\u904b\u884c\u60a8\u7684 PostgreSQL \u6578\u64da\u5eab\uff0cServer.HK \u63d0\u4f9b\u9ad8\u6548\u80fd\u7684 <a href=\"https:\/\/server.hk\">\u4e91\u670d\u52a1\u5668<\/a> \u670d\u52d9\uff0c\u5e6b\u52a9\u60a8\u8f15\u9b06\u7ba1\u7406\u6578\u64da\u5eab\u548c\u61c9\u7528\u7a0b\u5e8f\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Learn how to troubleshoot PostgreSQL error 25008: held_cursor_requires_same_isolation_level with remote handling techniques for effective resolution.<\/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-96786","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/96786","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=96786"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/96786\/revisions"}],"predecessor-version":[{"id":96787,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/96786\/revisions\/96787"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=96786"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=96786"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=96786"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}