{"id":95498,"date":"2024-10-20T01:33:16","date_gmt":"2024-10-19T17:33:16","guid":{"rendered":"https:\/\/server.hk\/cnblog\/95498\/"},"modified":"2024-10-20T01:33:16","modified_gmt":"2024-10-19T17:33:16","slug":"oracle%e6%95%b8%e6%93%9a%e5%ba%abrman%e4%b8%8d%e5%ae%8c%e5%85%a8%e6%81%a2%e5%be%a9%e4%b9%8b%e5%9f%ba%e6%96%bcscn%e6%81%a2%e5%be%a9","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/95498\/","title":{"rendered":"Oracle\u6578\u64da\u5eabRMAN\u4e0d\u5b8c\u5168\u6062\u5fa9\u4e4b\u57fa\u65bcSCN\u6062\u5fa9"},"content":{"rendered":"<h1 id=\"oracle%e6%95%b8%e6%93%9a%e5%ba%abrman%e4%b8%8d%e5%ae%8c%e5%85%a8%e6%81%a2%e5%be%a9%e4%b9%8b%e5%9f%ba%e6%96%bcscn%e6%81%a2%e5%be%a9-IyDkSawVsR\">Oracle\u6578\u64da\u5eabRMAN\u4e0d\u5b8c\u5168\u6062\u5fa9\u4e4b\u57fa\u65bcSCN\u6062\u5fa9<\/h1>\n<p>\u5728\u6578\u64da\u5eab\u7ba1\u7406\u4e2d\uff0c\u6578\u64da\u7684\u5b8c\u6574\u6027\u548c\u53ef\u7528\u6027\u662f\u81f3\u95dc\u91cd\u8981\u7684\u3002Oracle\u6578\u64da\u5eab\u63d0\u4f9b\u4e86\u591a\u7a2e\u6062\u5fa9\u9078\u9805\uff0c\u5176\u4e2dRMAN\uff08Recovery Manager\uff09\u662f\u4e00\u500b\u5f37\u5927\u7684\u5de5\u5177\uff0c\u80fd\u5920\u5e6b\u52a9\u7ba1\u7406\u54e1\u9032\u884c\u6578\u64da\u7684\u5099\u4efd\u548c\u6062\u5fa9\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5982\u4f55\u4f7f\u7528RMAN\u9032\u884c\u4e0d\u5b8c\u5168\u6062\u5fa9\uff0c\u7279\u5225\u662f\u57fa\u65bcSCN\uff08System Change Number\uff09\u7684\u6062\u5fa9\u65b9\u6cd5\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%afscn%ef%bc%9f-IyDkSawVsR\">\u4ec0\u9ebc\u662fSCN\uff1f<\/h2>\n<p>SCN\u662fOracle\u6578\u64da\u5eab\u4e2d\u7528\u4f86\u6a19\u8b58\u6578\u64da\u5eab\u72c0\u614b\u7684\u4e00\u500b\u91cd\u8981\u6982\u5ff5\u3002\u6bcf\u7576\u6578\u64da\u5eab\u4e2d\u7684\u6578\u64da\u767c\u751f\u8b8a\u66f4\u6642\uff0cOracle\u6703\u70ba\u8a72\u8b8a\u66f4\u5206\u914d\u4e00\u500b\u552f\u4e00\u7684SCN\u3002\u9019\u4f7f\u5f97\u6578\u64da\u5eab\u80fd\u5920\u8ffd\u8e64\u6bcf\u4e00\u6b21\u7684\u8b8a\u66f4\uff0c\u4e26\u5728\u9700\u8981\u6642\u9032\u884c\u6062\u5fa9\u3002<\/p>\n<h2 id=\"rman%e7%9a%84%e5%9f%ba%e6%9c%ac%e6%a6%82%e5%bf%b5-IyDkSawVsR\">RMAN\u7684\u57fa\u672c\u6982\u5ff5<\/h2>\n<p>RMAN\u662f\u4e00\u500b\u5c08\u9580\u7528\u65bcOracle\u6578\u64da\u5eab\u7684\u5099\u4efd\u548c\u6062\u5fa9\u5de5\u5177\u3002\u5b83\u63d0\u4f9b\u4e86\u547d\u4ee4\u884c\u754c\u9762\uff0c\u5141\u8a31\u7528\u6236\u57f7\u884c\u5404\u7a2e\u5099\u4efd\u548c\u6062\u5fa9\u64cd\u4f5c\u3002RMAN\u652f\u6301\u5168\u5099\u4efd\u3001\u589e\u91cf\u5099\u4efd\u4ee5\u53ca\u4e0d\u5b8c\u5168\u6062\u5fa9\u7b49\u591a\u7a2e\u529f\u80fd\u3002<\/p>\n<h2 id=\"%e4%b8%8d%e5%ae%8c%e5%85%a8%e6%81%a2%e5%be%a9%e7%9a%84%e6%a6%82%e5%bf%b5-IyDkSawVsR\">\u4e0d\u5b8c\u5168\u6062\u5fa9\u7684\u6982\u5ff5<\/h2>\n<p>\u4e0d\u5b8c\u5168\u6062\u5fa9\u662f\u6307\u5c07\u6578\u64da\u5eab\u6062\u5fa9\u5230\u67d0\u4e00\u7279\u5b9a\u7684\u6642\u9593\u9ede\u6216SCN\uff0c\u800c\u4e0d\u662f\u6062\u5fa9\u5230\u6700\u8fd1\u7684\u5099\u4efd\u72c0\u614b\u3002\u9019\u5728\u6578\u64da\u640d\u58de\u6216\u8aa4\u522a\u9664\u7684\u60c5\u6cc1\u4e0b\u7279\u5225\u6709\u7528\uff0c\u56e0\u70ba\u5b83\u5141\u8a31\u7528\u6236\u6062\u5fa9\u5230\u4e00\u500b\u66f4\u65e9\u7684\u72c0\u614b\u3002<\/p>\n<h2 id=\"%e5%9f%ba%e6%96%bcscn%e7%9a%84%e6%81%a2%e5%be%a9%e6%ad%a5%e9%a9%9f-IyDkSawVsR\">\u57fa\u65bcSCN\u7684\u6062\u5fa9\u6b65\u9a5f<\/h2>\n<p>\u4ee5\u4e0b\u662f\u4f7f\u7528RMAN\u9032\u884c\u57fa\u65bcSCN\u7684\u4e0d\u5b8c\u5168\u6062\u5fa9\u7684\u57fa\u672c\u6b65\u9a5f\uff1a<\/p>\n<h3 id=\"1-%e7%a2%ba%e8%aa%8d%e5%82%99%e4%bb%bd-IyDkSawVsR\">1. \u78ba\u8a8d\u5099\u4efd<\/h3>\n<p>\u5728\u9032\u884c\u6062\u5fa9\u4e4b\u524d\uff0c\u9996\u5148\u9700\u8981\u78ba\u8a8d\u662f\u5426\u6709\u53ef\u7528\u7684\u5099\u4efd\u3002\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u4f86\u67e5\u770b\u53ef\u7528\u7684\u5099\u4efd\uff1a<\/p>\n<pre><code>RMAN&gt; LIST BACKUP;<\/code><\/pre>\n<h3 id=\"2-%e7%a2%ba%e5%ae%9a%e7%9b%ae%e6%a8%99scn-IyDkSawVsR\">2. \u78ba\u5b9a\u76ee\u6a19SCN<\/h3>\n<p>\u63a5\u4e0b\u4f86\uff0c\u9700\u8981\u78ba\u5b9a\u8981\u6062\u5fa9\u5230\u7684SCN\u3002\u53ef\u4ee5\u901a\u904e\u67e5\u8a62\u6578\u64da\u5b57\u5178\u8996\u5716\u4f86\u7372\u53d6\u7576\u524dSCN\uff1a<\/p>\n<pre><code>SELECT CURRENT_SCN FROM V$DATABASE;<\/code><\/pre>\n<h3 id=\"3-%e5%9f%b7%e8%a1%8c%e4%b8%8d%e5%ae%8c%e5%85%a8%e6%81%a2%e5%be%a9-IyDkSawVsR\">3. \u57f7\u884c\u4e0d\u5b8c\u5168\u6062\u5fa9<\/h3>\n<p>\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u57f7\u884c\u57fa\u65bcSCN\u7684\u6062\u5fa9\uff1a<\/p>\n<pre><code>RMAN&gt; RUN {\n    SET UNTIL SCN ;\n    RESTORE DATABASE;\n    RECOVER DATABASE;\n}<\/code><\/pre>\n<p>\u5728\u9019\u88e1\uff0c\u61c9\u66ff\u63db\u70ba\u60a8\u5e0c\u671b\u6062\u5fa9\u5230\u7684\u5177\u9ad4SCN\u503c\u3002<\/p>\n<h3 id=\"4-%e9%96%8b%e5%95%9f%e6%95%b8%e6%93%9a%e5%ba%ab-IyDkSawVsR\">4. \u958b\u555f\u6578\u64da\u5eab<\/h3>\n<p>\u5b8c\u6210\u6062\u5fa9\u5f8c\uff0c\u60a8\u9700\u8981\u958b\u555f\u6578\u64da\u5eab\u4ee5\u4f7f\u66f4\u6539\u751f\u6548\uff1a<\/p>\n<pre><code>ALTER DATABASE OPEN;<\/code><\/pre>\n<h2 id=\"%e6%b3%a8%e6%84%8f%e4%ba%8b%e9%a0%85-IyDkSawVsR\">\u6ce8\u610f\u4e8b\u9805<\/h2>\n<ul>\n<li>\u5728\u9032\u884c\u4e0d\u5b8c\u5168\u6062\u5fa9\u4e4b\u524d\uff0c\u52d9\u5fc5\u78ba\u4fdd\u5df2\u7d93\u505a\u597d\u5145\u5206\u7684\u5099\u4efd\u3002<\/li>\n<li>\u4e0d\u5b8c\u5168\u6062\u5fa9\u53ef\u80fd\u6703\u5c0e\u81f4\u6578\u64da\u4e1f\u5931\uff0c\u56e0\u6b64\u5728\u57f7\u884c\u6b64\u64cd\u4f5c\u6642\u9700\u8b39\u614e\u3002<\/li>\n<li>\u5efa\u8b70\u5728\u6e2c\u8a66\u74b0\u5883\u4e2d\u5148\u9032\u884c\u6f14\u7df4\uff0c\u4ee5\u78ba\u4fdd\u5c0d\u64cd\u4f5c\u6d41\u7a0b\u7684\u719f\u6089\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-IyDkSawVsR\">\u7e3d\u7d50<\/h2>\n<p>\u57fa\u65bcSCN\u7684RMAN\u4e0d\u5b8c\u5168\u6062\u5fa9\u662f\u4e00\u500b\u5f37\u5927\u7684\u529f\u80fd\uff0c\u80fd\u5920\u5e6b\u52a9\u6578\u64da\u5eab\u7ba1\u7406\u54e1\u5728\u9762\u5c0d\u6578\u64da\u640d\u58de\u6216\u8aa4\u522a\u9664\u6642\u8fc5\u901f\u6062\u5fa9\u6578\u64da\u3002\u901a\u904e\u6b63\u78ba\u7684\u6b65\u9a5f\u548c\u8b39\u614e\u7684\u64cd\u4f5c\uff0c\u60a8\u53ef\u4ee5\u6709\u6548\u5730\u4fdd\u8b77\u60a8\u7684\u6578\u64da\u5eab\u3002\u82e5\u60a8\u9700\u8981\u9032\u4e00\u6b65\u7684\u652f\u6301\u6216\u5c0b\u627e\u5408\u9069\u7684\u89e3\u6c7a\u65b9\u6848\uff0c\u8acb\u8003\u616e\u6211\u5011\u7684<a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a>\u548c<a href=\"https:\/\/server.hk\">\u96f2\u4f3a\u670d\u5668<\/a>\u670d\u52d9\uff0c\u4ee5\u78ba\u4fdd\u60a8\u7684\u6578\u64da\u5b89\u5168\u548c\u53ef\u7528\u6027\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e86\u89e3\u5982\u4f55\u4f7f\u7528Oracle\u6578\u64da\u5eabRMAN\u9032\u884c\u57fa\u65bcSCN\u7684\u6062\u5fa9\uff0c\u5be6\u73fe\u4e0d\u5b8c\u5168\u6062\u5fa9\uff0c\u78ba\u4fdd\u6578\u64da\u5b89\u5168\u8207\u5b8c\u6574\u6027\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-95498","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/95498","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=95498"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/95498\/revisions"}],"predecessor-version":[{"id":95499,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/95498\/revisions\/95499"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=95498"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=95498"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=95498"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}