{"id":91232,"date":"2024-10-18T19:30:21","date_gmt":"2024-10-18T11:30:21","guid":{"rendered":"https:\/\/server.hk\/cnblog\/91232\/"},"modified":"2024-10-18T19:30:22","modified_gmt":"2024-10-18T11:30:22","slug":"ora-30018-%e5%89%b5%e5%bb%ba%e5%9b%9e%e6%bb%be%e6%ae%b5%e5%a4%b1%e6%95%97%ef%bc%8cusn-%e5%ad%97%e7%ac%a6%e4%b8%b2%e8%b6%85%e5%87%ba%e7%af%84%e5%9c%8d-oracle-%e5%a0%b1%e9%8c%af-%e6%95%85%e9%9a%9c","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/91232\/","title":{"rendered":"ORA-30018: \u5275\u5efa\u56de\u6efe\u6bb5\u5931\u6557\uff0cUSN \u5b57\u7b26\u4e32\u8d85\u51fa\u7bc4\u570d ORACLE \u5831\u932f \u6545\u969c\u4fee\u5fa9 \u9060\u7a0b\u8655\u7406"},"content":{"rendered":"<h1 id=\"ora-30018-%e5%89%b5%e5%bb%ba%e5%9b%9e%e6%bb%be%e6%ae%b5%e5%a4%b1%e6%95%97%ef%bc%8cusn-%e5%ad%97%e7%ac%a6%e4%b8%b2%e8%b6%85%e5%87%ba%e7%af%84%e5%9c%8d-oracle-%e5%a0%b1%e9%8c%af-%e6%95%85%e9%9a%9c-wQdtLcOfhj\">ORA-30018: \u5275\u5efa\u56de\u6efe\u6bb5\u5931\u6557\uff0cUSN \u5b57\u7b26\u4e32\u8d85\u51fa\u7bc4\u570d ORACLE \u5831\u932f \u6545\u969c\u4fee\u5fa9 \u9060\u7a0b\u8655\u7406<\/h1>\n<p>\u5728\u4f7f\u7528 Oracle \u6578\u64da\u5eab\u7684\u904e\u7a0b\u4e2d\uff0c\u7ba1\u7406\u54e1\u53ef\u80fd\u6703\u9047\u5230\u5404\u7a2e\u932f\u8aa4\u4ee3\u78bc\uff0c\u5176\u4e2d\u4e4b\u4e00\u4fbf\u662f <code>ORA-30018<\/code>\u3002\u9019\u500b\u932f\u8aa4\u901a\u5e38\u8868\u793a\u5728\u5275\u5efa\u56de\u6efe\u6bb5\u6642\u5931\u6557\uff0c\u539f\u56e0\u662f USN\uff08Undo Segment Number\uff09\u5b57\u7b26\u4e32\u8d85\u51fa\u7bc4\u570d\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0e\u8a72\u932f\u8aa4\u7684\u6210\u56e0\u3001\u5f71\u97ff\u53ca\u5176\u4fee\u5fa9\u65b9\u6cd5\u3002<\/p>\n<h2 id=\"ora-30018-%e9%8c%af%e8%aa%a4%e7%9a%84%e6%88%90%e5%9b%a0-wQdtLcOfhj\">ORA-30018 \u932f\u8aa4\u7684\u6210\u56e0<\/h2>\n<p>\u7576 Oracle \u6578\u64da\u5eab\u5728\u5275\u5efa\u56de\u6efe\u6bb5\u6642\uff0c\u7cfb\u7d71\u6703\u70ba\u6bcf\u500b\u56de\u6efe\u6bb5\u5206\u914d\u4e00\u500b\u552f\u4e00\u7684 USN\u3002\u9019\u500b USN \u662f\u7528\u4f86\u6a19\u8b58\u56de\u6efe\u6bb5\u7684\uff0c\u4e26\u4e14\u5728\u6578\u64da\u5eab\u7684\u904b\u884c\u904e\u7a0b\u4e2d\uff0cUSN \u7684\u6578\u91cf\u662f\u6709\u9650\u7684\u3002\u5982\u679c\u7cfb\u7d71\u4e2d\u5b58\u5728\u904e\u591a\u7684\u56de\u6efe\u6bb5\uff0c\u6216\u8005\u56de\u6efe\u6bb5\u7684\u6578\u91cf\u8d85\u904e\u4e86 Oracle \u7684\u9650\u5236\uff0c\u5c31\u6703\u5c0e\u81f4 <code>ORA-30018<\/code> \u932f\u8aa4\u7684\u767c\u751f\u3002<\/p>\n<h2 id=\"%e9%8c%af%e8%aa%a4%e7%9a%84%e5%bd%b1%e9%9f%bf-wQdtLcOfhj\">\u932f\u8aa4\u7684\u5f71\u97ff<\/h2>\n<p>\u7576\u51fa\u73fe <code>ORA-30018<\/code> \u932f\u8aa4\u6642\uff0c\u6578\u64da\u5eab\u5c07\u7121\u6cd5\u6b63\u5e38\u904b\u884c\uff0c\u9019\u53ef\u80fd\u6703\u5c0e\u81f4\u4ee5\u4e0b\u5e7e\u500b\u554f\u984c\uff1a<\/p>\n<ul>\n<li>\u7121\u6cd5\u57f7\u884c\u4e8b\u52d9\uff0c\u5f71\u97ff\u696d\u52d9\u904b\u4f5c\u3002<\/li>\n<li>\u6578\u64da\u5eab\u6027\u80fd\u4e0b\u964d\uff0c\u56e0\u70ba\u7cfb\u7d71\u9700\u8981\u8655\u7406\u932f\u8aa4\u3002<\/li>\n<li>\u53ef\u80fd\u5c0e\u81f4\u6578\u64da\u640d\u58de\u6216\u4e1f\u5931\uff0c\u7279\u5225\u662f\u5728\u4e8b\u52d9\u672a\u5b8c\u6210\u7684\u60c5\u6cc1\u4e0b\u3002<\/li>\n<\/ul>\n<h2 id=\"%e6%95%85%e9%9a%9c%e4%bf%ae%e5%be%a9%e6%ad%a5%e9%a9%9f-wQdtLcOfhj\">\u6545\u969c\u4fee\u5fa9\u6b65\u9a5f<\/h2>\n<p>\u4fee\u5fa9 <code>ORA-30018<\/code> \u932f\u8aa4\u7684\u904e\u7a0b\u53ef\u4ee5\u5206\u70ba\u5e7e\u500b\u6b65\u9a5f\uff1a<\/p>\n<h3 id=\"1-%e6%aa%a2%e6%9f%a5%e5%9b%9e%e6%bb%be%e6%ae%b5%e7%9a%84%e4%bd%bf%e7%94%a8%e6%83%85%e6%b3%81-wQdtLcOfhj\">1. \u6aa2\u67e5\u56de\u6efe\u6bb5\u7684\u4f7f\u7528\u60c5\u6cc1<\/h3>\n<p>\u9996\u5148\uff0c\u7ba1\u7406\u54e1\u9700\u8981\u6aa2\u67e5\u7576\u524d\u7684\u56de\u6efe\u6bb5\u4f7f\u7528\u60c5\u6cc1\u3002\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b SQL \u67e5\u8a62\u4f86\u7372\u53d6\u56de\u6efe\u6bb5\u7684\u8a73\u7d30\u4fe1\u606f\uff1a<\/p>\n<pre><code>SELECT * FROM dba_rollback_segs;<\/code><\/pre>\n<h3 id=\"2-%e5%88%aa%e9%99%a4%e4%b8%8d%e5%bf%85%e8%a6%81%e7%9a%84%e5%9b%9e%e6%bb%be%e6%ae%b5-wQdtLcOfhj\">2. \u522a\u9664\u4e0d\u5fc5\u8981\u7684\u56de\u6efe\u6bb5<\/h3>\n<p>\u5982\u679c\u767c\u73fe\u6709\u4e0d\u518d\u4f7f\u7528\u7684\u56de\u6efe\u6bb5\uff0c\u53ef\u4ee5\u8003\u616e\u522a\u9664\u5b83\u5011\u3002\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u4f86\u522a\u9664\u4e0d\u5fc5\u8981\u7684\u56de\u6efe\u6bb5\uff1a<\/p>\n<pre><code>DROP ROLLBACK SEGMENT rollback_segment_name;<\/code><\/pre>\n<h3 id=\"3-%e5%a2%9e%e5%8a%a0%e5%9b%9e%e6%bb%be%e6%ae%b5%e7%9a%84%e6%95%b8%e9%87%8f-wQdtLcOfhj\">3. \u589e\u52a0\u56de\u6efe\u6bb5\u7684\u6578\u91cf<\/h3>\n<p>\u5982\u679c\u7cfb\u7d71\u9700\u8981\u66f4\u591a\u7684\u56de\u6efe\u6bb5\uff0c\u53ef\u4ee5\u901a\u904e\u4ee5\u4e0b\u547d\u4ee4\u4f86\u589e\u52a0\u56de\u6efe\u6bb5\u7684\u6578\u91cf\uff1a<\/p>\n<pre><code>CREATE ROLLBACK SEGMENT rollback_segment_name STORAGE (initial_size next_size max_size);<\/code><\/pre>\n<h3 id=\"4-%e7%9b%a3%e6%8e%a7-usn-%e7%9a%84%e4%bd%bf%e7%94%a8%e6%83%85%e6%b3%81-wQdtLcOfhj\">4. \u76e3\u63a7 USN \u7684\u4f7f\u7528\u60c5\u6cc1<\/h3>\n<p>\u5b9a\u671f\u76e3\u63a7 USN \u7684\u4f7f\u7528\u60c5\u6cc1\uff0c\u4ee5\u78ba\u4fdd\u4e0d\u6703\u518d\u6b21\u51fa\u73fe\u8d85\u51fa\u7bc4\u570d\u7684\u60c5\u6cc1\u3002\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u67e5\u8a62\u4f86\u6aa2\u67e5 USN \u7684\u4f7f\u7528\u60c5\u6cc1\uff1a<\/p>\n<pre><code>SELECT MAX(USN) FROM v$transaction;<\/code><\/pre>\n<h2 id=\"%e9%81%a0%e7%a8%8b%e8%99%95%e7%90%86%e5%bb%ba%e8%ad%b0-wQdtLcOfhj\">\u9060\u7a0b\u8655\u7406\u5efa\u8b70<\/h2>\n<p>\u5728\u67d0\u4e9b\u60c5\u6cc1\u4e0b\uff0c\u7ba1\u7406\u54e1\u53ef\u80fd\u7121\u6cd5\u76f4\u63a5\u8a2a\u554f\u6578\u64da\u5eab\u9032\u884c\u6545\u969c\u6392\u9664\u3002\u6b64\u6642\uff0c\u53ef\u4ee5\u8003\u616e\u4f7f\u7528\u9060\u7a0b\u8655\u7406\u5de5\u5177\u4f86\u5354\u52a9\u89e3\u6c7a\u554f\u984c\u3002\u78ba\u4fdd\u4f7f\u7528\u7684\u5de5\u5177\u80fd\u5920\u5b89\u5168\u5730\u9023\u63a5\u5230\u6578\u64da\u5eab\uff0c\u4e26\u63d0\u4f9b\u5fc5\u8981\u7684\u6b0a\u9650\u4f86\u57f7\u884c\u4fee\u5fa9\u64cd\u4f5c\u3002<\/p>\n<h2 id=\"%e7%b8%bd%e7%b5%90-wQdtLcOfhj\">\u7e3d\u7d50<\/h2>\n<p>\u5728 Oracle \u6578\u64da\u5eab\u4e2d\uff0c<code>ORA-30018<\/code> \u932f\u8aa4\u662f\u4e00\u500b\u5e38\u898b\u7684\u554f\u984c\uff0c\u901a\u5e38\u7531\u65bc\u56de\u6efe\u6bb5\u7684 USN \u5b57\u7b26\u4e32\u8d85\u51fa\u7bc4\u570d\u6240\u5f15\u8d77\u3002\u901a\u904e\u6aa2\u67e5\u56de\u6efe\u6bb5\u7684\u4f7f\u7528\u60c5\u6cc1\u3001\u522a\u9664\u4e0d\u5fc5\u8981\u7684\u56de\u6efe\u6bb5\u3001\u589e\u52a0\u56de\u6efe\u6bb5\u7684\u6578\u91cf\u4ee5\u53ca\u76e3\u63a7 USN \u7684\u4f7f\u7528\u60c5\u6cc1\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u4fee\u5fa9\u6b64\u932f\u8aa4\u3002\u5c0d\u65bc\u9700\u8981\u9032\u884c\u9060\u7a0b\u8655\u7406\u7684\u60c5\u6cc1\uff0c\u9078\u64c7\u5408\u9069\u7684\u5de5\u5177\u548c\u65b9\u6cd5\u4e5f\u81f3\u95dc\u91cd\u8981\u3002\u82e5\u60a8\u9700\u8981\u66f4\u591a\u6709\u95dc <a href=\"https:\/\/server.hk\">\u9999\u6e2f VPS<\/a> \u53ca\u6578\u64da\u5eab\u7ba1\u7406\u7684\u8cc7\u8a0a\uff0c\u8acb\u96a8\u6642\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u89e3\u6c7a ORA-30018 \u932f\u8aa4\uff0c\u4fee\u5fa9\u5275\u5efa\u56de\u6efe\u6bb5\u5931\u6557\u554f\u984c\uff0cUSN \u5b57\u7b26\u4e32\u8d85\u51fa\u7bc4\u570d\uff0c\u63d0\u4f9b\u9060\u7a0b\u8655\u7406\u65b9\u6848\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-91232","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/91232","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=91232"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/91232\/revisions"}],"predecessor-version":[{"id":91233,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/91232\/revisions\/91233"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=91232"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=91232"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=91232"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}