{"id":188122,"date":"2024-11-11T19:58:20","date_gmt":"2024-11-11T11:58:20","guid":{"rendered":"https:\/\/server.hk\/cnblog\/188122\/"},"modified":"2024-11-11T19:58:21","modified_gmt":"2024-11-11T11:58:21","slug":"%e8%aa%aa%e4%b8%80%e8%aa%aaoracle-flashback-table%e7%9a%84%e4%b8%80%e5%80%8b%e6%9c%89%e8%b6%a3%e5%95%8f%e9%a1%8c","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/188122\/","title":{"rendered":"\u8aaa\u4e00\u8aaaORACLE FLASHBACK TABLE\u7684\u4e00\u500b\u6709\u8da3\u554f\u984c"},"content":{"rendered":"<h1 id=\"%e8%aa%aa%e4%b8%80%e8%aa%aaoracle-flashback-table%e7%9a%84%e4%b8%80%e5%80%8b%e6%9c%89%e8%b6%a3%e5%95%8f%e9%a1%8c-dTOTIKisLZ\">\u8aaa\u4e00\u8aaaORACLE FLASHBACK TABLE\u7684\u4e00\u500b\u6709\u8da3\u554f\u984c<\/h1>\n<p>\u5728\u8cc7\u6599\u5eab\u7ba1\u7406\u4e2d\uff0c\u6578\u64da\u7684\u5b8c\u6574\u6027\u548c\u53ef\u7528\u6027\u662f\u81f3\u95dc\u91cd\u8981\u7684\u3002Oracle\u8cc7\u6599\u5eab\u63d0\u4f9b\u4e86\u591a\u7a2e\u529f\u80fd\u4f86\u4fdd\u8b77\u548c\u6062\u5fa9\u6578\u64da\uff0c\u5176\u4e2d\u4e4b\u4e00\u5c31\u662fFlashback\u6280\u8853\u3002Flashback\u6280\u8853\u5141\u8a31\u7528\u6236\u5728\u4e0d\u9700\u8981\u9032\u884c\u5b8c\u6574\u6062\u5fa9\u7684\u60c5\u6cc1\u4e0b\uff0c\u5feb\u901f\u6062\u5fa9\u5230\u5148\u524d\u7684\u6578\u64da\u72c0\u614b\u3002\u672c\u6587\u5c07\u63a2\u8a0eOracle Flashback Table\u7684\u4e00\u500b\u6709\u8da3\u554f\u984c\uff0c\u4e26\u63d0\u4f9b\u76f8\u95dc\u7684\u6280\u8853\u7d30\u7bc0\u548c\u793a\u4f8b\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%aforacle-flashback-table%ef%bc%9f-dTOTIKisLZ\">\u4ec0\u9ebc\u662fOracle Flashback Table\uff1f<\/h2>\n<p>Oracle Flashback Table\u662f\u4e00\u7a2e\u529f\u80fd\uff0c\u5141\u8a31\u7528\u6236\u5c07\u8868\u6062\u5fa9\u5230\u67d0\u500b\u7279\u5b9a\u7684\u6642\u9593\u9ede\u6216\u7248\u672c\u3002\u9019\u5c0d\u65bc\u8aa4\u522a\u9664\u6216\u8aa4\u66f4\u65b0\u6578\u64da\u7684\u60c5\u6cc1\u7279\u5225\u6709\u7528\u3002\u4f7f\u7528Flashback Table\uff0c\u6578\u64da\u5eab\u7ba1\u7406\u54e1\u53ef\u4ee5\u8f15\u9b06\u5730\u64a4\u92b7\u4e0d\u7576\u7684\u64cd\u4f5c\uff0c\u800c\u7121\u9700\u5f9e\u5099\u4efd\u4e2d\u6062\u5fa9\u6574\u500b\u6578\u64da\u5eab\u3002<\/p>\n<h2 id=\"flashback-table%e7%9a%84%e5%9f%ba%e6%9c%ac%e8%aa%9e%e6%b3%95-dTOTIKisLZ\">Flashback Table\u7684\u57fa\u672c\u8a9e\u6cd5<\/h2>\n<p>\u4f7f\u7528Flashback Table\u7684\u57fa\u672c\u8a9e\u6cd5\u5982\u4e0b\uff1a<\/p>\n<pre><code>FLASHBACK TABLE table_name TO TIMESTAMP (timestamp_value);<\/code><\/pre>\n<p>\u6216\u8005\uff0c\u60a8\u4e5f\u53ef\u4ee5\u4f7f\u7528SCN\uff08\u7cfb\u7d71\u8b8a\u66f4\u865f\uff09\u4f86\u6307\u5b9a\u6062\u5fa9\u7684\u7248\u672c\uff1a<\/p>\n<pre><code>FLASHBACK TABLE table_name TO SCN (scn_value);<\/code><\/pre>\n<h2 id=\"%e6%9c%89%e8%b6%a3%e7%9a%84%e5%95%8f%e9%a1%8c%ef%bc%9aflashback-table%e7%9a%84%e9%99%90%e5%88%b6-dTOTIKisLZ\">\u6709\u8da3\u7684\u554f\u984c\uff1aFlashback Table\u7684\u9650\u5236<\/h2>\n<p>\u96d6\u7136Flashback Table\u662f\u4e00\u500b\u5f37\u5927\u7684\u5de5\u5177\uff0c\u4f46\u5b83\u4e5f\u6709\u4e00\u4e9b\u9650\u5236\u3002\u9019\u4e9b\u9650\u5236\u53ef\u80fd\u6703\u5f71\u97ff\u7528\u6236\u5728\u4f7f\u7528\u6b64\u529f\u80fd\u6642\u7684\u6c7a\u7b56\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u4e3b\u8981\u7684\u9650\u5236\uff1a<\/p>\n<ul>\n<li><strong>\u884c\u7d1a\u9396\u5b9a\uff1a<\/strong>\u5728\u57f7\u884cFlashback\u64cd\u4f5c\u6642\uff0cOracle\u6703\u5c0d\u8868\u9032\u884c\u884c\u7d1a\u9396\u5b9a\uff0c\u9019\u53ef\u80fd\u6703\u5f71\u97ff\u5176\u4ed6\u7528\u6236\u7684\u64cd\u4f5c\u3002<\/li>\n<li><strong>\u4f9d\u8cf4\u65bcUndo\u6578\u64da\uff1a<\/strong>Flashback Table\u4f9d\u8cf4\u65bcUndo\u6578\u64da\u3002\u5982\u679cUndo\u6578\u64da\u5df2\u7d93\u88ab\u6e05\u9664\uff0c\u5247\u7121\u6cd5\u9032\u884cFlashback\u64cd\u4f5c\u3002<\/li>\n<li><strong>\u4e0d\u652f\u6301\u67d0\u4e9bDDL\u64cd\u4f5c\uff1a<\/strong>\u67d0\u4e9bDDL\uff08\u6578\u64da\u5b9a\u7fa9\u8a9e\u8a00\uff09\u64cd\u4f5c\uff0c\u5982\u6dfb\u52a0\u6216\u522a\u9664\u5217\uff0c\u53ef\u80fd\u6703\u5f71\u97ffFlashback\u7684\u53ef\u7528\u6027\u3002<\/li>\n<li><strong>\u6027\u80fd\u5f71\u97ff\uff1a<\/strong>\u5728\u5927\u578b\u8868\u4e0a\u57f7\u884cFlashback\u64cd\u4f5c\u53ef\u80fd\u6703\u5c0e\u81f4\u6027\u80fd\u4e0b\u964d\uff0c\u7279\u5225\u662f\u5728\u9ad8\u8ca0\u8f09\u7684\u74b0\u5883\u4e2d\u3002<\/li>\n<\/ul>\n<h2 id=\"%e5%af%a6%e9%9a%9b%e7%a4%ba%e4%be%8b-dTOTIKisLZ\">\u5be6\u969b\u793a\u4f8b<\/h2>\n<p>\u5047\u8a2d\u6211\u5011\u6709\u4e00\u500b\u540d\u70ba\u201cemployees\u201d\u7684\u8868\uff0c\u4e26\u4e14\u6211\u5011\u5728\u67d0\u500b\u6642\u9593\u9ede\u4e0d\u5c0f\u5fc3\u522a\u9664\u4e86\u5e7e\u689d\u8a18\u9304\u3002\u6211\u5011\u53ef\u4ee5\u4f7f\u7528Flashback Table\u4f86\u6062\u5fa9\u9019\u4e9b\u8a18\u9304\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u5177\u9ad4\u7684\u793a\u4f8b\uff1a<\/p>\n<pre><code>-- \u5047\u8a2d\u6211\u5011\u8981\u5c07employees\u8868\u6062\u5fa9\u52302023\u5e7410\u67081\u65e5\u7684\u72c0\u614b\nFLASHBACK TABLE employees TO TIMESTAMP TO_TIMESTAMP('2023-10-01 10:00:00', 'YYYY-MM-DD HH24:MI:SS');<\/code><\/pre>\n<p>\u9019\u6a23\uff0c\u6211\u5011\u5c31\u80fd\u5920\u5c07\u201cemployees\u201d\u8868\u6062\u5fa9\u5230\u6307\u5b9a\u7684\u6642\u9593\u9ede\uff0c\u5f9e\u800c\u633d\u56de\u8aa4\u522a\u9664\u7684\u6578\u64da\u3002<\/p>\n<h2 id=\"%e7%b5%90%e8%ab%96-dTOTIKisLZ\">\u7d50\u8ad6<\/h2>\n<p>Oracle Flashback Table\u662f\u4e00\u500b\u5f37\u5927\u7684\u529f\u80fd\uff0c\u80fd\u5920\u5e6b\u52a9\u7528\u6236\u5feb\u901f\u6062\u5fa9\u6578\u64da\u3002\u7136\u800c\uff0c\u4f7f\u7528\u6b64\u529f\u80fd\u6642\u9700\u8981\u6ce8\u610f\u5176\u9650\u5236\u548c\u6f5b\u5728\u7684\u6027\u80fd\u5f71\u97ff\u3002\u5728\u5be6\u969b\u61c9\u7528\u4e2d\uff0c\u4e86\u89e3\u9019\u4e9b\u9650\u5236\u5c07\u6709\u52a9\u65bc\u7528\u6236\u66f4\u6709\u6548\u5730\u7ba1\u7406\u6578\u64da\u5eab\uff0c\u4e26\u5728\u9700\u8981\u6642\u505a\u51fa\u660e\u667a\u7684\u6c7a\u7b56\u3002<\/p>\n<p>\u5982\u679c\u60a8\u5c0d\u65bc\u5982\u4f55\u5728\u60a8\u7684\u74b0\u5883\u4e2d\u5be6\u65bd\u9019\u4e9b\u6280\u8853\u6709\u8208\u8da3\uff0c\u6216\u8005\u9700\u8981\u66f4\u9ad8\u6548\u7684\u6578\u64da\u7ba1\u7406\u89e3\u6c7a\u65b9\u6848\uff0c\u8acb\u8003\u616e\u6211\u5011\u7684<a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a>\u670d\u52d9\uff0c\u9019\u5c07\u70ba\u60a8\u7684\u6578\u64da\u5eab\u63d0\u4f9b\u7a69\u5b9a\u548c\u53ef\u9760\u7684\u652f\u6301\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22ORACLE FLASHBACK TABLE\u7684\u6709\u8da3\u554f\u984c\uff0c\u4e86\u89e3\u5982\u4f55\u8f15\u9b06\u6062\u5fa9\u6578\u64da\uff0c\u63d0\u5347\u6578\u64da\u7ba1\u7406\u7684\u9748\u6d3b\u6027\u8207\u6548\u7387\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-188122","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/188122","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=188122"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/188122\/revisions"}],"predecessor-version":[{"id":188123,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/188122\/revisions\/188123"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=188122"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=188122"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=188122"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}