{"id":81486,"date":"2024-10-16T16:12:16","date_gmt":"2024-10-16T08:12:16","guid":{"rendered":"https:\/\/server.hk\/cnblog\/81486\/"},"modified":"2024-10-16T16:12:16","modified_gmt":"2024-10-16T08:12:16","slug":"ora-00021-session-attached-to-some-other-process-cannot-switch-session-oracle%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\/81486\/","title":{"rendered":"ORA-00021: session attached to some other process; cannot switch session ORACLE\u5831\u932f\u6545\u969c\u4fee\u5fa9\u9060\u7a0b\u8655\u7406"},"content":{"rendered":"<h1 id=\"ora-00021-session-attached-to-some-other-process-cannot-switch-session-oracle%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-NylCEvDLys\">ORA-00021: session attached to some other process; cannot switch session ORACLE\u5831\u932f\u6545\u969c\u4fee\u5fa9\u9060\u7a0b\u8655\u7406<\/h1>\n<p>\u5728\u4f7f\u7528Oracle\u6578\u64da\u5eab\u7684\u904e\u7a0b\u4e2d\uff0c\u958b\u767c\u8005\u548c\u6578\u64da\u5eab\u7ba1\u7406\u54e1\u53ef\u80fd\u6703\u9047\u5230\u5404\u7a2e\u932f\u8aa4\u4ee3\u78bc\uff0c\u5176\u4e2d\u4e4b\u4e00\u4fbf\u662fORA-00021\u3002\u9019\u500b\u932f\u8aa4\u901a\u5e38\u8868\u793a\u7576\u524d\u7684\u6703\u8a71\u5df2\u7d93\u9644\u52a0\u5230\u53e6\u4e00\u500b\u9032\u7a0b\uff0c\u5c0e\u81f4\u7121\u6cd5\u5207\u63db\u6703\u8a71\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0eORA-00021\u7684\u539f\u56e0\u3001\u5f71\u97ff\u4ee5\u53ca\u89e3\u6c7a\u65b9\u6848\uff0c\u5e6b\u52a9\u7528\u6236\u66f4\u6709\u6548\u5730\u8655\u7406\u6b64\u554f\u984c\u3002<\/p>\n<h2 id=\"ora-00021%e7%9a%84%e5%8e%9f%e5%9b%a0-NylCEvDLys\">ORA-00021\u7684\u539f\u56e0<\/h2>\n<p>ORA-00021\u932f\u8aa4\u901a\u5e38\u51fa\u73fe\u5728\u4ee5\u4e0b\u5e7e\u7a2e\u60c5\u6cc1\u4e0b\uff1a<\/p>\n<ul>\n<li><strong>\u591a\u91cd\u9023\u63a5\uff1a<\/strong>\u7576\u4e00\u500b\u7528\u6236\u5617\u8a66\u5728\u540c\u4e00\u500bOracle\u6578\u64da\u5eab\u4e2d\u4f7f\u7528\u591a\u500b\u9023\u63a5\u6642\uff0c\u53ef\u80fd\u6703\u5c0e\u81f4\u6b64\u932f\u8aa4\u3002\u9019\u901a\u5e38\u767c\u751f\u5728\u4f7f\u7528\u9023\u63a5\u6c60\u7684\u60c5\u6cc1\u4e0b\u3002<\/li>\n<li><strong>\u6703\u8a71\u672a\u6b63\u78ba\u95dc\u9589\uff1a<\/strong>\u5982\u679c\u4e00\u500b\u6703\u8a71\u5728\u672a\u6b63\u78ba\u95dc\u9589\u7684\u60c5\u6cc1\u4e0b\u88ab\u5f37\u5236\u7d42\u6b62\uff0c\u53ef\u80fd\u6703\u5c0e\u81f4\u8a72\u6703\u8a71\u4ecd\u7136\u88ab\u8996\u70ba\u6d3b\u8e8d\u3002<\/li>\n<li><strong>\u8cc7\u6e90\u9650\u5236\uff1a<\/strong>\u5728\u67d0\u4e9b\u60c5\u6cc1\u4e0b\uff0c\u6578\u64da\u5eab\u7684\u8cc7\u6e90\u9650\u5236\uff08\u5982\u6700\u5927\u6703\u8a71\u6578\uff09\u53ef\u80fd\u6703\u5c0e\u81f4\u6b64\u932f\u8aa4\u3002<\/li>\n<\/ul>\n<h2 id=\"%e5%bd%b1%e9%9f%bf-NylCEvDLys\">\u5f71\u97ff<\/h2>\n<p>ORA-00021\u932f\u8aa4\u6703\u5f71\u97ff\u6578\u64da\u5eab\u7684\u6b63\u5e38\u904b\u884c\uff0c\u5c0e\u81f4\u7528\u6236\u7121\u6cd5\u57f7\u884c\u67e5\u8a62\u6216\u5176\u4ed6\u64cd\u4f5c\u3002\u9019\u4e0d\u50c5\u5f71\u97ff\u4e86\u7528\u6236\u7684\u5de5\u4f5c\u6548\u7387\uff0c\u9084\u53ef\u80fd\u5c0e\u81f4\u6578\u64da\u5eab\u7684\u6027\u80fd\u4e0b\u964d\u3002\u56e0\u6b64\uff0c\u53ca\u6642\u89e3\u6c7a\u6b64\u554f\u984c\u81f3\u95dc\u91cd\u8981\u3002<\/p>\n<h2 id=\"%e8%a7%a3%e6%b1%ba%e6%96%b9%e6%a1%88-NylCEvDLys\">\u89e3\u6c7a\u65b9\u6848<\/h2>\n<p>\u70ba\u4e86\u89e3\u6c7aORA-00021\u932f\u8aa4\uff0c\u53ef\u4ee5\u63a1\u53d6\u4ee5\u4e0b\u5e7e\u7a2e\u65b9\u6cd5\uff1a<\/p>\n<h3 id=\"1-%e6%aa%a2%e6%9f%a5%e7%95%b6%e5%89%8d%e6%9c%83%e8%a9%b1-NylCEvDLys\">1. \u6aa2\u67e5\u7576\u524d\u6703\u8a71<\/h3>\n<p>\u9996\u5148\uff0c\u4f7f\u7528\u4ee5\u4e0bSQL\u67e5\u8a62\u4f86\u6aa2\u67e5\u7576\u524d\u7684\u6703\u8a71\uff1a<\/p>\n<pre><code>SELECT * FROM v$session WHERE username = 'YOUR_USERNAME';<\/code><\/pre>\n<p>\u9019\u5c07\u986f\u793a\u6240\u6709\u8207\u8a72\u7528\u6236\u76f8\u95dc\u7684\u6703\u8a71\u3002\u5982\u679c\u767c\u73fe\u6709\u591a\u500b\u6703\u8a71\uff0c\u5247\u9700\u8981\u95dc\u9589\u4e0d\u5fc5\u8981\u7684\u6703\u8a71\u3002<\/p>\n<h3 id=\"2-%e9%97%9c%e9%96%89%e4%b8%8d%e5%bf%85%e8%a6%81%e7%9a%84%e6%9c%83%e8%a9%b1-NylCEvDLys\">2. \u95dc\u9589\u4e0d\u5fc5\u8981\u7684\u6703\u8a71<\/h3>\n<p>\u5982\u679c\u767c\u73fe\u6709\u591a\u9918\u7684\u6703\u8a71\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u95dc\u9589\u5b83\u5011\uff1a<\/p>\n<pre><code>ALTER SYSTEM KILL SESSION 'sid,serial#';<\/code><\/pre>\n<p>\u8acb\u5c07&#8217;sid&#8217;\u548c&#8217;serial#&#8217;\u66ff\u63db\u70ba\u76f8\u61c9\u7684\u6703\u8a71ID\u548c\u5e8f\u5217\u865f\u3002<\/p>\n<h3 id=\"3-%e6%aa%a2%e6%9f%a5%e9%80%a3%e6%8e%a5%e6%b1%a0%e9%85%8d%e7%bd%ae-NylCEvDLys\">3. \u6aa2\u67e5\u9023\u63a5\u6c60\u914d\u7f6e<\/h3>\n<p>\u5982\u679c\u4f7f\u7528\u9023\u63a5\u6c60\uff0c\u8acb\u6aa2\u67e5\u5176\u914d\u7f6e\uff0c\u78ba\u4fdd\u4e0d\u6703\u5275\u5efa\u904e\u591a\u7684\u9023\u63a5\u3002\u53ef\u4ee5\u901a\u904e\u8abf\u6574\u9023\u63a5\u6c60\u7684\u6700\u5927\u9023\u63a5\u6578\u4f86\u89e3\u6c7a\u6b64\u554f\u984c\u3002<\/p>\n<h3 id=\"4-%e5%a2%9e%e5%8a%a0%e8%b3%87%e6%ba%90%e9%99%90%e5%88%b6-NylCEvDLys\">4. \u589e\u52a0\u8cc7\u6e90\u9650\u5236<\/h3>\n<p>\u5982\u679c\u6578\u64da\u5eab\u7684\u8cc7\u6e90\u9650\u5236\u5c0e\u81f4\u6b64\u932f\u8aa4\uff0c\u53ef\u4ee5\u8003\u616e\u589e\u52a0\u6700\u5927\u6703\u8a71\u6578\u3002\u9019\u53ef\u4ee5\u901a\u904e\u4ee5\u4e0b\u547d\u4ee4\u5be6\u73fe\uff1a<\/p>\n<pre><code>ALTER SYSTEM SET processes = new_value SCOPE = SPFILE;<\/code><\/pre>\n<p>\u8acb\u5c07&#8217;new_value&#8217;\u66ff\u63db\u70ba\u6240\u9700\u7684\u6700\u5927\u6703\u8a71\u6578\uff0c\u7136\u5f8c\u91cd\u555f\u6578\u64da\u5eab\u4ee5\u4f7f\u66f4\u6539\u751f\u6548\u3002<\/p>\n<h2 id=\"%e7%b8%bd%e7%b5%90-NylCEvDLys\">\u7e3d\u7d50<\/h2>\n<p>ORA-00021\u932f\u8aa4\u662fOracle\u6578\u64da\u5eab\u4e2d\u5e38\u898b\u7684\u554f\u984c\u4e4b\u4e00\uff0c\u4e86\u89e3\u5176\u539f\u56e0\u548c\u89e3\u6c7a\u65b9\u6848\u5c0d\u65bc\u7dad\u8b77\u6578\u64da\u5eab\u7684\u7a69\u5b9a\u6027\u81f3\u95dc\u91cd\u8981\u3002\u901a\u904e\u6aa2\u67e5\u7576\u524d\u6703\u8a71\u3001\u95dc\u9589\u4e0d\u5fc5\u8981\u7684\u6703\u8a71\u3001\u8abf\u6574\u9023\u63a5\u6c60\u914d\u7f6e\u4ee5\u53ca\u589e\u52a0\u8cc7\u6e90\u9650\u5236\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u89e3\u6c7a\u6b64\u554f\u984c\u3002\u5c0d\u65bc\u9700\u8981\u7a69\u5b9a\u548c\u9ad8\u6548\u904b\u884c\u7684\u74b0\u5883\uff0c\u9078\u64c7\u5408\u9069\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u6216 <a href=\"https:\/\/server.hk\">\u9999\u6e2f\u4f3a\u670d\u5668<\/a> \u65b9\u6848\u5c07\u6709\u52a9\u65bc\u63d0\u5347\u6574\u9ad4\u6027\u80fd\u548c\u53ef\u9760\u6027\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Learn how to troubleshoot and resolve the ORA-00021 error in Oracle, indicating a session is attached to another process. Remote handling solutions included.<\/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-81486","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/81486","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=81486"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/81486\/revisions"}],"predecessor-version":[{"id":81487,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/81486\/revisions\/81487"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=81486"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=81486"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=81486"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}