{"id":190872,"date":"2024-11-12T15:43:21","date_gmt":"2024-11-12T07:43:21","guid":{"rendered":"https:\/\/server.hk\/cnblog\/190872\/"},"modified":"2024-11-12T15:43:23","modified_gmt":"2024-11-12T07:43:23","slug":"%e9%96%92%e8%81%8aoracle%e6%b8%9b%e5%b0%91%e5%9b%9e%e6%bb%be%e6%ae%b5","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/190872\/","title":{"rendered":"\u9592\u804aOracle\u6e1b\u5c11\u56de\u6efe\u6bb5"},"content":{"rendered":"<h1 id=\"%e9%96%92%e8%81%8aoracle%e6%b8%9b%e5%b0%91%e5%9b%9e%e6%bb%be%e6%ae%b5-dZRSbTyWUS\">\u9592\u804aOracle\u6e1b\u5c11\u56de\u6efe\u6bb5<\/h1>\n<p>\u5728\u6578\u64da\u5eab\u7ba1\u7406\u4e2d\uff0c\u56de\u6efe\u6bb5\uff08Rollback Segment\uff09\u662f\u7528\u4f86\u5b58\u5132\u672a\u63d0\u4ea4\u4e8b\u52d9\u7684\u6578\u64da\uff0c\u7576\u4e8b\u52d9\u5931\u6557\u6216\u9700\u8981\u64a4\u92b7\u6642\uff0c\u9019\u4e9b\u6578\u64da\u53ef\u4ee5\u7528\u4f86\u6062\u5fa9\u5230\u4e4b\u524d\u7684\u72c0\u614b\u3002Oracle\u6578\u64da\u5eab\u5728\u5176\u67b6\u69cb\u4e2d\u4f7f\u7528\u56de\u6efe\u6bb5\u4f86\u78ba\u4fdd\u6578\u64da\u7684\u4e00\u81f4\u6027\u548c\u5b8c\u6574\u6027\u3002\u7136\u800c\uff0c\u96a8\u8457\u6578\u64da\u5eab\u7684\u589e\u9577\u548c\u4e8b\u52d9\u7684\u589e\u52a0\uff0c\u56de\u6efe\u6bb5\u7684\u7ba1\u7406\u8b8a\u5f97\u8d8a\u4f86\u8d8a\u91cd\u8981\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5982\u4f55\u6e1b\u5c11Oracle\u4e2d\u7684\u56de\u6efe\u6bb5\uff0c\u4e26\u63d0\u4f9b\u4e00\u4e9b\u5be6\u7528\u7684\u5efa\u8b70\u548c\u6280\u5de7\u3002<\/p>\n<h2 id=\"%e5%9b%9e%e6%bb%be%e6%ae%b5%e7%9a%84%e5%9f%ba%e6%9c%ac%e6%a6%82%e5%bf%b5-dZRSbTyWUS\">\u56de\u6efe\u6bb5\u7684\u57fa\u672c\u6982\u5ff5<\/h2>\n<p>\u56de\u6efe\u6bb5\u662fOracle\u6578\u64da\u5eab\u7684\u4e00\u500b\u91cd\u8981\u7d44\u4ef6\uff0c\u4e3b\u8981\u7528\u65bc\u652f\u6301\u4e8b\u52d9\u7684\u539f\u5b50\u6027\u3002\u7576\u4e00\u500b\u4e8b\u52d9\u958b\u59cb\u6642\uff0c\u6240\u6709\u7684\u8b8a\u66f4\u90fd\u6703\u88ab\u5beb\u5165\u5230\u56de\u6efe\u6bb5\u4e2d\uff0c\u76f4\u5230\u4e8b\u52d9\u63d0\u4ea4\u3002\u82e5\u4e8b\u52d9\u672a\u80fd\u6210\u529f\u63d0\u4ea4\uff0cOracle\u6703\u4f7f\u7528\u56de\u6efe\u6bb5\u4e2d\u7684\u6578\u64da\u4f86\u6062\u5fa9\u5230\u4e8b\u52d9\u958b\u59cb\u4e4b\u524d\u7684\u72c0\u614b\u3002<\/p>\n<h2 id=\"%e6%b8%9b%e5%b0%91%e5%9b%9e%e6%bb%be%e6%ae%b5%e7%9a%84%e5%bf%85%e8%a6%81%e6%80%a7-dZRSbTyWUS\">\u6e1b\u5c11\u56de\u6efe\u6bb5\u7684\u5fc5\u8981\u6027<\/h2>\n<p>\u96a8\u8457\u6578\u64da\u5eab\u7684\u4f7f\u7528\uff0c\u56de\u6efe\u6bb5\u7684\u6578\u91cf\u548c\u5927\u5c0f\u53ef\u80fd\u6703\u589e\u52a0\uff0c\u9019\u6703\u5c0e\u81f4\u6027\u80fd\u4e0b\u964d\u548c\u8cc7\u6e90\u6d6a\u8cbb\u3002\u904e\u591a\u7684\u56de\u6efe\u6bb5\u6703\u4f54\u7528\u5927\u91cf\u7684\u78c1\u789f\u7a7a\u9593\uff0c\u4e26\u53ef\u80fd\u5f71\u97ff\u6578\u64da\u5eab\u7684\u6574\u9ad4\u6027\u80fd\u3002\u56e0\u6b64\uff0c\u6e1b\u5c11\u56de\u6efe\u6bb5\u7684\u6578\u91cf\u548c\u5927\u5c0f\u662f\u975e\u5e38\u5fc5\u8981\u7684\u3002<\/p>\n<h2 id=\"%e6%b8%9b%e5%b0%91%e5%9b%9e%e6%bb%be%e6%ae%b5%e7%9a%84%e7%ad%96%e7%95%a5-dZRSbTyWUS\">\u6e1b\u5c11\u56de\u6efe\u6bb5\u7684\u7b56\u7565<\/h2>\n<h3 id=\"1-%e5%84%aa%e5%8c%96%e4%ba%8b%e5%8b%99%e7%ae%a1%e7%90%86-dZRSbTyWUS\">1. \u512a\u5316\u4e8b\u52d9\u7ba1\u7406<\/h3>\n<p>\u4e8b\u52d9\u7684\u7ba1\u7406\u662f\u6e1b\u5c11\u56de\u6efe\u6bb5\u7684\u95dc\u9375\u3002\u958b\u767c\u8005\u61c9\u8a72\u76e1\u91cf\u6e1b\u5c11\u4e8b\u52d9\u7684\u6301\u7e8c\u6642\u9593\uff0c\u907f\u514d\u9577\u6642\u9593\u9396\u5b9a\u8cc7\u6e90\u3002\u53ef\u4ee5\u901a\u904e\u4ee5\u4e0b\u65b9\u5f0f\u4f86\u512a\u5316\u4e8b\u52d9\uff1a<\/p>\n<ul>\n<li>\u5c07\u4e8b\u52d9\u5283\u5206\u70ba\u66f4\u5c0f\u7684\u55ae\u4f4d\uff0c\u78ba\u4fdd\u6bcf\u500b\u4e8b\u52d9\u53ea\u57f7\u884c\u5fc5\u8981\u7684\u64cd\u4f5c\u3002<\/li>\n<li>\u907f\u514d\u5728\u4e8b\u52d9\u4e2d\u57f7\u884c\u4e0d\u5fc5\u8981\u7684\u67e5\u8a62\u6216\u66f4\u65b0\u64cd\u4f5c\u3002<\/li>\n<li>\u4f7f\u7528\u9069\u7576\u7684\u9694\u96e2\u7d1a\u5225\uff0c\u4ee5\u6e1b\u5c11\u9396\u7684\u7af6\u722d\u3002<\/li>\n<\/ul>\n<h3 id=\"2-%e5%ae%9a%e6%9c%9f%e6%b8%85%e7%90%86%e5%9b%9e%e6%bb%be%e6%ae%b5-dZRSbTyWUS\">2. \u5b9a\u671f\u6e05\u7406\u56de\u6efe\u6bb5<\/h3>\n<p>\u5b9a\u671f\u6e05\u7406\u4e0d\u518d\u4f7f\u7528\u7684\u56de\u6efe\u6bb5\u53ef\u4ee5\u6709\u6548\u6e1b\u5c11\u5176\u6578\u91cf\u3002\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0bSQL\u547d\u4ee4\u4f86\u67e5\u8a62\u548c\u522a\u9664\u4e0d\u518d\u9700\u8981\u7684\u56de\u6efe\u6bb5\uff1a<\/p>\n<pre><code>SELECT * FROM dba_rollback_segs WHERE status = 'INVALID';<\/code><\/pre>\n<pre><code>DROP ROLLBACK SEGMENT segment_name;<\/code><\/pre>\n<h3 id=\"3-%e8%aa%bf%e6%95%b4%e5%9b%9e%e6%bb%be%e6%ae%b5%e7%9a%84%e5%a4%a7%e5%b0%8f-dZRSbTyWUS\">3. \u8abf\u6574\u56de\u6efe\u6bb5\u7684\u5927\u5c0f<\/h3>\n<p>\u6839\u64da\u5be6\u969b\u9700\u6c42\u8abf\u6574\u56de\u6efe\u6bb5\u7684\u5927\u5c0f\u4e5f\u662f\u4e00\u500b\u6709\u6548\u7684\u7b56\u7565\u3002\u53ef\u4ee5\u901a\u904e\u4ee5\u4e0b\u547d\u4ee4\u4f86\u4fee\u6539\u56de\u6efe\u6bb5\u7684\u5927\u5c0f\uff1a<\/p>\n<pre><code>ALTER ROLLBACK SEGMENT segment_name STORAGE (INITIAL size NEXT size);<\/code><\/pre>\n<h3 id=\"4-%e4%bd%bf%e7%94%a8%e8%87%aa%e5%8b%95%e5%9b%9e%e6%bb%be%e6%ae%b5%e7%ae%a1%e7%90%86-dZRSbTyWUS\">4. \u4f7f\u7528\u81ea\u52d5\u56de\u6efe\u6bb5\u7ba1\u7406<\/h3>\n<p>Oracle\u63d0\u4f9b\u4e86\u81ea\u52d5\u56de\u6efe\u6bb5\u7ba1\u7406\uff08Automatic Undo Management, AUM\uff09\uff0c\u9019\u662f\u4e00\u7a2e\u66f4\u70ba\u9ad8\u6548\u7684\u7ba1\u7406\u65b9\u5f0f\u3002\u555f\u7528AUM\u5f8c\uff0cOracle\u6703\u81ea\u52d5\u7ba1\u7406\u56de\u6efe\u6bb5\u7684\u5927\u5c0f\u548c\u6578\u91cf\uff0c\u5f9e\u800c\u6e1b\u5c11\u624b\u52d5\u7ba1\u7406\u7684\u8ca0\u64d4\u3002<\/p>\n<h2 id=\"%e7%b5%90%e8%ab%96-dZRSbTyWUS\">\u7d50\u8ad6<\/h2>\n<p>\u6e1b\u5c11Oracle\u4e2d\u7684\u56de\u6efe\u6bb5\u4e0d\u50c5\u53ef\u4ee5\u63d0\u9ad8\u6578\u64da\u5eab\u7684\u6027\u80fd\uff0c\u9084\u80fd\u6709\u6548\u5730\u5229\u7528\u8cc7\u6e90\u3002\u901a\u904e\u512a\u5316\u4e8b\u52d9\u7ba1\u7406\u3001\u5b9a\u671f\u6e05\u7406\u56de\u6efe\u6bb5\u3001\u8abf\u6574\u56de\u6efe\u6bb5\u7684\u5927\u5c0f\u4ee5\u53ca\u4f7f\u7528\u81ea\u52d5\u56de\u6efe\u6bb5\u7ba1\u7406\uff0c\u6578\u64da\u5eab\u7ba1\u7406\u54e1\u53ef\u4ee5\u66f4\u597d\u5730\u63a7\u5236\u56de\u6efe\u6bb5\u7684\u4f7f\u7528\u60c5\u6cc1\u3002\u9019\u4e9b\u7b56\u7565\u4e0d\u50c5\u80fd\u5920\u63d0\u5347\u6578\u64da\u5eab\u7684\u904b\u884c\u6548\u7387\uff0c\u9084\u80fd\u78ba\u4fdd\u6578\u64da\u7684\u4e00\u81f4\u6027\u548c\u5b8c\u6574\u6027\u3002<\/p>\n<p>\u5982\u9700\u4e86\u89e3\u66f4\u591a\u6709\u95dc\u65bc<code><a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a><\/code>\u548c<code><a href=\"https:\/\/server.hk\">\u4f3a\u670d\u5668<\/a><\/code>\u7684\u8cc7\u8a0a\uff0c\u8acb\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e86\u89e3\u5982\u4f55\u900f\u904e\u9592\u804aOracle\u6e1b\u5c11\u56de\u6efe\u6bb5\uff0c\u63d0\u9ad8\u6578\u64da\u5eab\u6027\u80fd\uff0c\u512a\u5316\u67e5\u8a62\u6548\u7387\uff0c\u78ba\u4fdd\u7cfb\u7d71\u7a69\u5b9a\u904b\u884c\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-190872","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/190872","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=190872"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/190872\/revisions"}],"predecessor-version":[{"id":190873,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/190872\/revisions\/190873"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=190872"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=190872"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=190872"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}