{"id":887,"date":"2016-09-29T09:54:34","date_gmt":"2016-09-29T01:54:34","guid":{"rendered":"http:\/\/www.oracle.name\/?p=887"},"modified":"2016-09-29T09:57:15","modified_gmt":"2016-09-29T01:57:15","slug":"oracle-ora-01555%e5%bf%ab%e7%85%a7%e8%bf%87%e6%97%a7%e7%9a%84%e9%94%99%e8%af%af%ef%bc%88%e8%bd%ac%e8%bd%bd%ef%bc%89","status":"publish","type":"post","link":"https:\/\/www.llku.com\/?p=887","title":{"rendered":"Oracle ORA-01555\u5feb\u7167\u8fc7\u65e7\u7684\u9519\u8bef\uff08\u8f6c\u8f7d\uff09"},"content":{"rendered":"<p>\n\t<span style=\"text-align: left; widows: 1; text-transform: none; background-color: rgb(255,255,255); text-indent: 0px; display: inline !important; font: 14px\/26px Arial; white-space: normal; float: none; letter-spacing: normal; color: rgb(51,51,51); word-spacing: 0px; -webkit-text-stroke-width: 0px\">\u8f6c\u8f7d\u5730\u5740\uff1a<\/span><font face=\"Arial\"><a href=\"http:\/\/blog.csdn.net\/liaoyuanzi\/article\/details\/7712682\">http:\/\/blog.csdn.net\/liaoyuanzi\/article\/details\/7712682<\/a><\/font>\n<\/p>\n<p>\n\t<span style=\"text-align: left; widows: 1; text-transform: none; background-color: rgb(255,255,255); text-indent: 0px; display: inline !important; font: 14px\/26px Arial; white-space: normal; float: none; letter-spacing: normal; color: rgb(51,51,51); word-spacing: 0px; -webkit-text-stroke-width: 0px\">\u5173\u4e8eOracle ORA-01555\u5feb\u7167\u8fc7\u65e7\u7684\u9519\u8bef<\/span><br style=\"text-align: left; widows: 1; text-transform: none; background-color: rgb(255,255,255); text-indent: 0px; font: 14px\/26px Arial; white-space: normal; letter-spacing: normal; color: rgb(51,51,51); word-spacing: 0px; -webkit-text-stroke-width: 0px\" \/><br \/>\n\t<br \/>\n\t<span style=\"text-align: left; widows: 1; text-transform: none; background-color: rgb(255,255,255); text-indent: 0px; display: inline !important; font: 14px\/26px Arial; white-space: normal; float: none; letter-spacing: normal; color: rgb(51,51,51); word-spacing: 0px; -webkit-text-stroke-width: 0px\">\u9996\u5148\u4e86\u89e3Oracle\u5728\u4ec0\u4e48\u60c5\u51b5\u4e0b\u4f1a\u4ea7\u751fORA-01555\u9519\u8bef:<\/span><span style=\"text-align: left; widows: 1; text-transform: none; background-color: rgb(255,255,255); text-indent: 0px; display: inline !important; font: 14px\/26px Arial; white-space: normal; float: none; letter-spacing: normal; color: rgb(51,51,51); word-spacing: 0px; -webkit-text-stroke-width: 0px\">&nbsp;<\/span><br style=\"text-align: left; widows: 1; text-transform: none; background-color: rgb(255,255,255); text-indent: 0px; font: 14px\/26px Arial; white-space: normal; letter-spacing: normal; color: rgb(51,51,51); word-spacing: 0px; -webkit-text-stroke-width: 0px\" \/><br \/>\n\t<br \/>\n\t<span style=\"text-align: left; widows: 1; text-transform: none; background-color: rgb(255,255,255); text-indent: 0px; display: inline !important; font: 14px\/26px Arial; white-space: normal; float: none; letter-spacing: normal; color: rgb(51,51,51); word-spacing: 0px; -webkit-text-stroke-width: 0px\">\u5047\u8bbe\u6709\u4e00\u5f206000\u4e07\u884c\u6570\u636e\u7684testdb\u8868\uff0c\u9884\u8ba1testdb\u5168\u8868\u626b\u63cf1\u6b21\u9700\u89812\u4e2a\u5c0f\u65f6\uff0c\u53c2\u8003\u8fc7\u7a0b\u5982\u4e0b\uff1a<span class=\"Apple-converted-space\">&nbsp;<\/span><\/span><br style=\"text-align: left; widows: 1; text-transform: none; background-color: rgb(255,255,255); text-indent: 0px; font: 14px\/26px Arial; white-space: normal; letter-spacing: normal; color: rgb(51,51,51); word-spacing: 0px; -webkit-text-stroke-width: 0px\" \/><br \/>\n\t<br \/>\n\t<span style=\"text-align: left; widows: 1; text-transform: none; background-color: rgb(255,255,255); text-indent: 0px; display: inline !important; font: 14px\/26px Arial; white-space: normal; float: none; letter-spacing: normal; color: rgb(51,51,51); word-spacing: 0px; -webkit-text-stroke-width: 0px\">1\u3001\u57281\u70b9\u949f\uff0c\u7528\u6237A\u53d1\u51fa\u4e86select * from testdb;\u6b64\u65f6\u4e0d\u7ba1\u5c06\u6765testdb\u600e\u4e48\u53d8\u5316\uff0c\u6b63\u786e\u7684\u7ed3\u679c\u5e94\u8be5\u662f\u7528\u6237A\u4f1a\u770b\u5230\u57281\u70b9\u949f\u8fd9\u4e2a\u65f6\u523b\u7684\u5185\u5bb9\u3002<\/span><br style=\"text-align: left; widows: 1; text-transform: none; background-color: rgb(255,255,255); text-indent: 0px; font: 14px\/26px Arial; white-space: normal; letter-spacing: normal; color: rgb(51,51,51); word-spacing: 0px; -webkit-text-stroke-width: 0px\" \/><br \/>\n\t<br \/>\n\t<span style=\"text-align: left; widows: 1; text-transform: none; background-color: rgb(255,255,255); text-indent: 0px; display: inline !important; font: 14px\/26px Arial; white-space: normal; float: none; letter-spacing: normal; color: rgb(51,51,51); word-spacing: 0px; -webkit-text-stroke-width: 0px\">2\u3001\u57281\u70b930\u5206\uff0c\u7528\u6237B\u6267\u884c\u4e86update\u547d\u4ee4\uff0c\u66f4\u65b0\u4e86testdb\u8868\u4e2d\u7684\u7b2c4100\u4e07\u884c\u7684\u8fd9\u6761\u8bb0\u5f55\uff0c\u8fd9\u65f6\uff0c\u7528\u6237A\u7684\u5168\u8868\u626b\u63cf\u8fd8\u6ca1\u6709\u5230\u8fbe\u7b2c4100\u4e07\u6761\u3002\u6beb\u65e0\u7591\u95ee\uff0c\u8fd9\u4e2a\u65f6\u5019\uff0c\u7b2c4100\u4e07\u884c\u7684\u8fd9\u6761\u8bb0\u5f55\u662f\u88ab\u5199\u5165\u4e86\u56de\u6eda\u6bb5\uff0c\u5047\u8bbe\u662f\u56de\u6eda\u6bb5UNDOTS1\uff0c\u5982\u679c\u7528\u6237A\u7684\u5168\u8868\u626b\u63cf\u5230\u8fbe\u4e86\u7b2c4100\u4e07\u884c\uff0c\u662f\u5e94\u8be5\u4f1a\u6b63\u786e\u7684\u4ece\u56de\u6eda\u6bb5UNDOTS1\u4e2d\u8bfb\u53d6\u51fa1\u70b9\u949f\u65f6\u523b\u7684\u5185\u5bb9\u7684\u3002<span class=\"Apple-converted-space\">&nbsp;<\/span><\/span><br style=\"text-align: left; widows: 1; text-transform: none; background-color: rgb(255,255,255); text-indent: 0px; font: 14px\/26px Arial; white-space: normal; letter-spacing: normal; color: rgb(51,51,51); word-spacing: 0px; -webkit-text-stroke-width: 0px\" \/><br \/>\n\t<br \/>\n\t<span style=\"text-align: left; widows: 1; text-transform: none; background-color: rgb(255,255,255); text-indent: 0px; display: inline !important; font: 14px\/26px Arial; white-space: normal; float: none; letter-spacing: normal; color: rgb(51,51,51); word-spacing: 0px; -webkit-text-stroke-width: 0px\">3\u3001\u8fd9\u65f6\uff0c\u7528\u6237B\u5c06\u4ed6\u521a\u624d\u505a\u7684\u64cd\u4f5c\u63d0\u4ea4\u4e86\uff0c\u4f46\u662f\u8fd9\u65f6\uff0c\u7cfb\u7edf\u4ecd\u7136\u53ef\u4ee5\u7ed9\u7528\u6237A\u63d0\u4f9b\u6b63\u786e\u7684\u6570\u636e\uff0c<\/span><a name=\"baidusnap0\" style=\"text-align: left; widows: 1; text-transform: none; background-color: rgb(255,255,255); text-indent: 0px; font: 14px\/26px Arial; white-space: normal; letter-spacing: normal; color: rgb(51,102,153); word-spacing: 0px; text-decoration: none; -webkit-text-stroke-width: 0px\"><\/a><strong style=\"text-align: left; line-height: 26px; widows: 1; text-transform: none; background-color: rgb(255,255,102); font-variant: normal; font-style: normal; text-indent: 0px; font-family: Arial; white-space: normal; letter-spacing: normal; color: black; font-size: 14px; word-spacing: 0px; -webkit-text-stroke-width: 0px\">\u56e0<\/strong><span style=\"text-align: left; widows: 1; text-transform: none; background-color: rgb(255,255,255); text-indent: 0px; display: inline !important; font: 14px\/26px Arial; white-space: normal; float: none; letter-spacing: normal; color: rgb(51,51,51); word-spacing: 0px; -webkit-text-stroke-width: 0px\">\u4e3a\u90a3\u7b2c4100\u4e07\u884c\u8bb0\u5f55\u7684\u5185\u5bb9\u4ecd\u7136\u8fd8\u5728\u56de\u6eda\u6bb5UNDOTS1\u91cc\uff0c\u7cfb\u7edf\u53ef\u4ee5\u6839\u636eSCN\u5230\u56de\u6eda\u6bb5\u91cc\u627e\u5230\u6b63\u786e\u7684\u6570\u636e\uff0c\u4f46\u8981\u6ce8\u610f\u5230\uff0c\u8fd9\u65f6\u8bb0\u5f55\u5728UNDOTS1\u91cc\u7684\u7b2c4100\u4e07\u884c\u8bb0\u5f55\u5df2\u7ecf\u53d1\u751f\u4e86\u91cd\u5927\u7684\u6539\u53d8\uff1a\u5c31\u662f\u7b2c4100\u4e07\u884c\u5728\u56de\u6eda\u6bb5UNDOTS1\u91cc\u7684\u6570\u636e\u6709\u53ef\u80fd\u968f\u65f6\u88ab\u8986\u76d6\u6389\uff0c<\/span><strong style=\"text-align: left; line-height: 26px; widows: 1; text-transform: none; background-color: rgb(255,255,102); font-variant: normal; font-style: normal; text-indent: 0px; font-family: Arial; white-space: normal; letter-spacing: normal; color: black; font-size: 14px; word-spacing: 0px; -webkit-text-stroke-width: 0px\">\u56e0<\/strong><span style=\"text-align: left; widows: 1; text-transform: none; background-color: rgb(255,255,255); text-indent: 0px; display: inline !important; font: 14px\/26px Arial; white-space: normal; float: none; letter-spacing: normal; color: rgb(51,51,51); word-spacing: 0px; -webkit-text-stroke-width: 0px\">\u4e3a\u8fd9\u6761\u8bb0\u5f55\u5df2\u7ecf\u88ab\u63d0\u4ea4\u4e86\uff01<span class=\"Apple-converted-space\">&nbsp;<\/span><\/span><br style=\"text-align: left; widows: 1; text-transform: none; background-color: rgb(255,255,255); text-indent: 0px; font: 14px\/26px Arial; white-space: normal; letter-spacing: normal; color: rgb(51,51,51); word-spacing: 0px; -webkit-text-stroke-width: 0px\" \/><br \/>\n\t<br \/>\n\t<span style=\"text-align: left; widows: 1; text-transform: none; background-color: rgb(255,255,255); text-indent: 0px; display: inline !important; font: 14px\/26px Arial; white-space: normal; float: none; letter-spacing: normal; color: rgb(51,51,51); word-spacing: 0px; -webkit-text-stroke-width: 0px\">4\u3001\u7531\u4e8e\u7528\u6237A\u7684\u67e5\u8be2\u65f6\u95f4\u6f2b\u957f\uff0c\u800c\u4e1a\u52a1\u5728\u4e00\u76f4\u4e0d\u65ad\u7684\u8fdb\u884c\uff0cUNDOTS1\u56de\u6eda\u6bb5\u5728\u88ab\u591a\u4e2a\u4e0d\u540c\u7684transaction\u4f7f\u7528\u7740\uff0c\u8fd9\u4e2a\u56de\u6eda\u6bb5\u91cc\u7684extent\u5faa\u73af\u5230\u4e86\u7b2c4100\u4e07\u884c\u6570\u636e\u6240\u5728\u7684extent\uff0c\u7531\u4e8e\u8fd9\u6761\u8bb0\u5f55\u5df2\u7ecf\u88ab\u6807\u8bb0\u63d0\u4ea4\u4e86\uff0c\u6240\u4ee5\u8fd9\u4e2aextent\u662f\u53ef\u4ee5\u88ab\u5176\u4ed6transaction\u8986\u76d6\u6389\u7684\uff01<span class=\"Apple-converted-space\">&nbsp;<\/span><\/span><br style=\"text-align: left; widows: 1; text-transform: none; background-color: rgb(255,255,255); text-indent: 0px; font: 14px\/26px Arial; white-space: normal; letter-spacing: normal; color: rgb(51,51,51); word-spacing: 0px; -webkit-text-stroke-width: 0px\" \/><br \/>\n\t<br \/>\n\t<span style=\"text-align: left; widows: 1; text-transform: none; background-color: rgb(255,255,255); text-indent: 0px; display: inline !important; font: 14px\/26px Arial; white-space: normal; float: none; letter-spacing: normal; color: rgb(51,51,51); word-spacing: 0px; -webkit-text-stroke-width: 0px\">5\u3001\u5230\u4e861\u70b945\u5206\uff0c\u7528\u6237A\u7684\u67e5\u8be2\u7ec8\u4e8e\u5230\u4e86\u7b2c4100\u4e07\u884c\uff0c\u800c\u8fd9\u65f6\u5df2\u7ecf\u51fa\u73b0\u4e86\u7b2c4\u6761\u8bf4\u7684\u60c5\u51b5\uff0c\u9700\u8981\u5230\u56de\u6eda\u6bb5UNDOTS1\u53bb\u627e\u6570\u636e\uff0c\u4f46\u662f\u5df2\u7ecf\u88ab\u8986\u76d6\u6389\u4e86\uff0c\u8fd9\u65f6\u5c31\u51fa\u73b0\u4e86ORA-01555\u9519\u8bef\u3002<\/span><span style=\"text-align: left; widows: 1; text-transform: none; background-color: rgb(255,255,255); text-indent: 0px; display: inline !important; font: 14px\/26px Arial; white-space: normal; float: none; letter-spacing: normal; color: rgb(51,51,51); word-spacing: 0px; -webkit-text-stroke-width: 0px\"> \u4ee5\u4e0a\u6b64\u6bb5\u975e\u672c\u4eba\u539f\u521b<\/span><span style=\"text-align: left; widows: 1; text-transform: none; background-color: rgb(255,255,255); text-indent: 0px; display: inline !important; font: 14px\/26px Arial; white-space: normal; float: none; letter-spacing: normal; color: rgb(51,51,51); word-spacing: 0px; -webkit-text-stroke-width: 0px\">&nbsp;<\/span><br style=\"text-align: left; widows: 1; text-transform: none; background-color: rgb(255,255,255); text-indent: 0px; font: 14px\/26px Arial; white-space: normal; letter-spacing: normal; color: rgb(51,51,51); word-spacing: 0px; -webkit-text-stroke-width: 0px\" \/><br \/>\n\t<br \/>\n\t<img alt=\"\" border=\"0\" src=\"http:\/\/img1.51cto.com\/attachment\/201001\/201001181263781607176.png\" style=\"border-bottom: medium none; text-align: left; border-left: medium none; widows: 1; text-transform: none; background-color: rgb(255,255,255); text-indent: 0px; font: 14px\/26px Arial; max-width: 100%; white-space: normal; letter-spacing: normal; color: rgb(51,51,51); border-top: medium none; border-right: medium none; word-spacing: 0px; -webkit-text-stroke-width: 0px\" title=\"Oracle ORA-01555\u5feb\u7167\u8fc7\u65e7\u7684\u9519\u8bef - \u6c89\u9ed8\u7684\u7f94\u7f8a - zhangyafeng0917\u7684\u535a\u5ba2\" \/><span style=\"text-align: left; widows: 1; text-transform: none; background-color: rgb(255,255,255); text-indent: 0px; display: inline !important; font: 14px\/26px Arial; white-space: normal; float: none; letter-spacing: normal; color: rgb(51,51,51); word-spacing: 0px; -webkit-text-stroke-width: 0px\">&nbsp;<\/span><br style=\"text-align: left; widows: 1; text-transform: none; background-color: rgb(255,255,255); text-indent: 0px; font: 14px\/26px Arial; white-space: normal; letter-spacing: normal; color: rgb(51,51,51); word-spacing: 0px; -webkit-text-stroke-width: 0px\" \/><br \/>\n\t<br \/>\n\t<span style=\"text-align: left; widows: 1; text-transform: none; background-color: rgb(255,255,255); text-indent: 0px; display: inline !important; font: 14px\/26px Arial; white-space: normal; float: none; letter-spacing: normal; color: rgb(51,51,51); word-spacing: 0px; -webkit-text-stroke-width: 0px\">\u539f<\/span><strong style=\"text-align: left; line-height: 26px; widows: 1; text-transform: none; background-color: rgb(255,255,102); font-variant: normal; font-style: normal; text-indent: 0px; font-family: Arial; white-space: normal; letter-spacing: normal; color: black; font-size: 14px; word-spacing: 0px; -webkit-text-stroke-width: 0px\">\u56e0<\/strong><span style=\"text-align: left; widows: 1; text-transform: none; background-color: rgb(255,255,255); text-indent: 0px; display: inline !important; font: 14px\/26px Arial; white-space: normal; float: none; letter-spacing: normal; color: rgb(51,51,51); word-spacing: 0px; -webkit-text-stroke-width: 0px\">\u5206\u6790\uff1a&quot;\u62a5\u8868&quot;\u7a0b\u5e8f\u6267\u884c\u65f6\u95f4\u6f2b\u957f\uff0c\u5728\u7a0b\u5e8f\u67e5\u8be2\u7684\u8fc7\u7a0b\u4e2d\u5176\u4ed6\u7528\u6237\u5bf9&quot;\u62a5\u8868&quot;\u8fdb\u884c\u4e86\u66f4\u65b0\uff0c\u88ab\u66f4\u65b0\u7684\u6570\u636e\u5199\u5165\u4e86\u56de\u6eda\u6bb5\uff0c\u5f53\u7a0b\u5e8f\u5230\u56de\u6eda\u6bb5\u627e\u6570\u636e\u65f6\uff0c\u53d1\u73b0\u6570\u636e\u5df2\u7ecf\u88ab\u8986\u76d6\u6389\uff0c\u4e8e\u662f\u5c31\u51fa\u73b0\u4e86ORA-01555\u9519\u8bef\u3002\u53e6\u5916&quot;\u62a5\u8868&quot;\u7a0b\u5e8f\u6267\u884c\u6548\u7387\u4e0d\u9ad8\u4e5f\u4f1a\u9020\u6210ORA-01555\u9519\u8bef\u3002<\/span><br \/>\n\t<span style=\"text-align: left; widows: 1; text-transform: none; background-color: rgb(255,255,255); text-indent: 0px; display: inline !important; font: 14px\/26px Arial; white-space: normal; float: none; letter-spacing: normal; color: rgb(51,51,51); word-spacing: 0px; -webkit-text-stroke-width: 0px\">\u89e3\u51b3\u529e\u6cd5\uff1a<\/span><br \/>\n\t<span style=\"text-align: left; widows: 1; text-transform: none; background-color: rgb(255,255,255); text-indent: 0px; display: inline !important; font: 14px\/26px Arial; white-space: normal; float: none; letter-spacing: normal; color: rgb(51,51,51); word-spacing: 0px; -webkit-text-stroke-width: 0px\">1\u3001\u6269\u5927\u56de\u6eda\u6bb5\uff0c<\/span><strong style=\"text-align: left; line-height: 26px; widows: 1; text-transform: none; background-color: rgb(255,255,102); font-variant: normal; font-style: normal; text-indent: 0px; font-family: Arial; white-space: normal; letter-spacing: normal; color: black; font-size: 14px; word-spacing: 0px; -webkit-text-stroke-width: 0px\">\u56e0<\/strong><span style=\"text-align: left; widows: 1; text-transform: none; background-color: rgb(255,255,255); text-indent: 0px; display: inline !important; font: 14px\/26px Arial; white-space: normal; float: none; letter-spacing: normal; color: rgb(51,51,51); word-spacing: 0px; -webkit-text-stroke-width: 0px\">\u4e3a\u56de\u6eda\u6bb5\u662f\u5faa\u73af\u4f7f\u7528\u7684\uff0c\u5982\u679c\u56de\u6eda\u6bb5\u8db3\u591f\u5927\uff0c\u90a3\u4e48\u90a3\u4e9b\u88ab\u63d0\u4ea4\u7684\u6570\u636e\u5c31\u80fd\u4fdd\u5b58\u8db3\u591f\u957f\u7684\u65f6\u95f4\uff0c\u4f7f\u90a3\u4e9b\u5927\u4e8b\u52a1\u5b8c\u6210\u4e00\u81f4\u6027\u8bfb\u53d6\u3002\u4e4b\u524dEBS\u7cfb\u7edfUNDO<\/span><a name=\"baidusnap1\" style=\"text-align: left; widows: 1; text-transform: none; background-color: rgb(255,255,255); text-indent: 0px; font: 14px\/26px Arial; white-space: normal; letter-spacing: normal; color: rgb(51,102,153); word-spacing: 0px; text-decoration: none; -webkit-text-stroke-width: 0px\"><\/a><strong style=\"text-align: left; line-height: 26px; widows: 1; text-transform: none; background-color: rgb(160,255,255); font-variant: normal; font-style: normal; text-indent: 0px; font-family: Arial; white-space: normal; letter-spacing: normal; color: black; font-size: 14px; word-spacing: 0px; -webkit-text-stroke-width: 0px\">\u8868\u7a7a\u95f4<\/strong><span style=\"text-align: left; widows: 1; text-transform: none; background-color: rgb(255,255,255); text-indent: 0px; display: inline !important; font: 14px\/26px Arial; white-space: normal; float: none; letter-spacing: normal; color: rgb(51,51,51); word-spacing: 0px; -webkit-text-stroke-width: 0px\">\u4e3a9GB\uff0c\u76ee\u524d\u4e3a10GB\u3002\u89c1\u4e0b\u56fe:<\/span><br style=\"text-align: left; widows: 1; text-transform: none; background-color: rgb(255,255,255); text-indent: 0px; font: 14px\/26px Arial; white-space: normal; letter-spacing: normal; color: rgb(51,51,51); word-spacing: 0px; -webkit-text-stroke-width: 0px\" \/><br \/>\n\t<br \/>\n\t<img alt=\"\" border=\"0\" src=\"http:\/\/img1.51cto.com\/attachment\/201001\/201001181263781049307.png\" style=\"border-bottom: medium none; text-align: left; border-left: medium none; widows: 1; text-transform: none; background-color: rgb(255,255,255); text-indent: 0px; font: 14px\/26px Arial; max-width: 100%; white-space: normal; letter-spacing: normal; color: rgb(51,51,51); border-top: medium none; border-right: medium none; word-spacing: 0px; -webkit-text-stroke-width: 0px\" title=\"Oracle ORA-01555\u5feb\u7167\u8fc7\u65e7\u7684\u9519\u8bef - \u6c89\u9ed8\u7684\u7f94\u7f8a - zhangyafeng0917\u7684\u535a\u5ba2\" \/><br \/>\n\t<span style=\"text-align: left; widows: 1; text-transform: none; background-color: rgb(255,255,255); text-indent: 0px; display: inline !important; font: 14px\/26px Arial; white-space: normal; float: none; letter-spacing: normal; color: rgb(51,51,51); word-spacing: 0px; -webkit-text-stroke-width: 0px\">2\u3001\u589e\u52a0undo_retention\u65f6\u95f4\uff0c<\/span><strong style=\"text-align: left; line-height: 26px; widows: 1; text-transform: none; background-color: rgb(255,255,102); font-variant: normal; font-style: normal; text-indent: 0px; font-family: Arial; white-space: normal; letter-spacing: normal; color: black; font-size: 14px; word-spacing: 0px; -webkit-text-stroke-width: 0px\">\u56e0<\/strong><span style=\"text-align: left; widows: 1; text-transform: none; background-color: rgb(255,255,255); text-indent: 0px; display: inline !important; font: 14px\/26px Arial; white-space: normal; float: none; letter-spacing: normal; color: rgb(51,51,51); word-spacing: 0px; -webkit-text-stroke-width: 0px\">\u4e3aUNDO\u56de\u6eda\u6bb5\u662f\u5faa\u73af\u4f7f\u7528\uff0c\u91cc\u9762\u7684\u6570\u636e\u53ef\u80fd\u968f\u65f6\u88ab\u5faa\u73af\u8986\u76d6\u6389\uff0c\u5982\u679c\u8bbe\u7f6eundo_retention\u65f6\u95f4\u66f4\u957f\uff0c\u90a3\u4e48\u5728retention\u89c4\u5b9a\u7684\u65f6\u95f4\u5185\uff0c\u4efb\u4f55\u5176\u4ed6\u4e8b\u52a1\u90fd\u4e0d\u80fd\u8986\u76d6\u8fd9\u4e9b\u6570\u636e\u3002\u76ee\u524dEBS\u7cfb\u7edfundo_retention\u4e3a10800\u79d2(3\u4e2a\u5c0f\u65f6)\u3002\u89c1\u4e0b\u56fe\uff1a<\/span><br \/>\n\t<span style=\"text-align: left; widows: 1; text-transform: none; background-color: rgb(255,255,255); text-indent: 0px; display: inline !important; font: 14px\/26px Arial; white-space: normal; float: none; letter-spacing: normal; color: rgb(51,51,51); word-spacing: 0px; -webkit-text-stroke-width: 0px\">&nbsp;<\/span><img alt=\"\" border=\"0\" src=\"http:\/\/img1.51cto.com\/attachment\/201001\/201001181263781091875.png\" style=\"border-bottom: medium none; text-align: left; border-left: medium none; widows: 1; text-transform: none; background-color: rgb(255,255,255); text-indent: 0px; font: 14px\/26px Arial; max-width: 100%; white-space: normal; letter-spacing: normal; color: rgb(51,51,51); border-top: medium none; border-right: medium none; word-spacing: 0px; -webkit-text-stroke-width: 0px\" title=\"Oracle ORA-01555\u5feb\u7167\u8fc7\u65e7\u7684\u9519\u8bef - \u6c89\u9ed8\u7684\u7f94\u7f8a - zhangyafeng0917\u7684\u535a\u5ba2\" \/><br style=\"text-align: left; widows: 1; text-transform: none; background-color: rgb(255,255,255); text-indent: 0px; font: 14px\/26px Arial; white-space: normal; letter-spacing: normal; color: rgb(51,51,51); word-spacing: 0px; -webkit-text-stroke-width: 0px\" \/><br \/>\n\t<br \/>\n\t<span style=\"text-align: left; widows: 1; text-transform: none; background-color: rgb(255,255,255); text-indent: 0px; display: inline !important; font: 14px\/26px Arial; white-space: normal; float: none; letter-spacing: normal; color: rgb(51,51,51); word-spacing: 0px; -webkit-text-stroke-width: 0px\">3\u3001\u6700\u91cd\u8981\u7684\u4e00\u70b9\u5c31\u662f\u4f18\u5316\u7a0b\u5e8f\u76f8\u5173\u67e5\u8be2\u8bed\u53e5\uff0c\u51cf\u5c11\u67e5\u8be2\u8bed\u53e5\u7684\u4e00\u81f4\u6027\u8bfb\uff0c\u964d\u4f4e\u8bfb\u53d6\u4e0d\u5230\u56de\u6eda\u6bb5\u6570\u636e\u7684\u98ce\u9669\u3002\u6240\u6709\u7684\u51fa\u9519\u4fe1\u606f\u90fd\u4f1a\u7eaa\u5f55\u5230\u6570\u636e\u5e93\u65e5\u5fd7alert_PROD.log\u6587\u4ef6\u4e2d\uff0c\u4e0b\u56fe\u7ea2\u7ebf\u90e8\u5206\u662f\u4e00\u6761SQL\u67e5\u8be2\u8bcd\u53e5\uff0cORA-01555\u5f88\u6709\u53ef\u80fd\u662f\u8fd9\u6761\u8bed\u53e5\u9020\u6210\uff0c\u628a\u8fd9\u6761\u8bed\u53e5\u63d0\u4f9b\u7ed9\u5f00\u53d1\u4eba\u5458\u6765\u5206\u6790\u548c\u4f18\u5316\u7a0b\u5e8f\u4ee3\u7801\u3002<\/span><br style=\"text-align: left; widows: 1; text-transform: none; background-color: rgb(255,255,255); text-indent: 0px; font: 14px\/26px Arial; white-space: normal; letter-spacing: normal; color: rgb(51,51,51); word-spacing: 0px; -webkit-text-stroke-width: 0px\" \/><br \/>\n\t<br \/>\n\t<img alt=\"\" border=\"0\" src=\"http:\/\/img1.51cto.com\/attachment\/201001\/201001181263781467145.png\" style=\"border-bottom: medium none; text-align: left; border-left: medium none; widows: 1; text-transform: none; background-color: rgb(255,255,255); text-indent: 0px; font: 14px\/26px Arial; max-width: 100%; white-space: normal; letter-spacing: normal; color: rgb(51,51,51); border-top: medium none; border-right: medium none; word-spacing: 0px; -webkit-text-stroke-width: 0px\" title=\"Oracle ORA-01555\u5feb\u7167\u8fc7\u65e7\u7684\u9519\u8bef - \u6c89\u9ed8\u7684\u7f94\u7f8a - zhangyafeng0917\u7684\u535a\u5ba2\" \/>\n<\/p>\n<p style=\"text-align: left; widows: 1; text-transform: none; background-color: rgb(255,255,255); text-indent: 0px; font: 14px\/26px Arial; white-space: normal; letter-spacing: normal; color: rgb(51,51,51); word-spacing: 0px; -webkit-text-stroke-width: 0px\">\n\t&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8211;\n<\/p>\n<p style=\"text-align: left; widows: 1; text-transform: none; background-color: rgb(255,255,255); text-indent: 0px; font: 14px\/26px Arial; white-space: normal; letter-spacing: normal; color: rgb(51,51,51); word-spacing: 0px; -webkit-text-stroke-width: 0px\">\n\tORA-01555 \u539f<strong style=\"background-color: rgb(255,255,102); color: black\">\u56e0<\/strong>\u4e0e\u89e3\u51b3\uff1a\n<\/p>\n<p style=\"text-align: left; widows: 1; text-transform: none; background-color: rgb(255,255,255); text-indent: 2em; font: 14px\/26px Arial; white-space: normal; letter-spacing: normal; color: rgb(51,51,51); word-spacing: 0px; -webkit-text-stroke-width: 0px\">\n\t\u524d\u9762\u63d0\u5230\u4e86ORA-01555\u9519\u8bef\uff0c\u90a3\u4e48\u73b0\u5728\u6765\u770b\u4e00\u4e0bORA-01555\u9519\u8bef\u662f\u600e\u6837\u4ea7\u751f\u7684\u3002\u7531\u4e8e\u56de\u6eda\u6bb5\u662f\u5faa\u73af\u4f7f\u7528\u7684\uff0c\u5f53\u4e8b\u52a1\u63d0\u4ea4\u4ee5\u540e\uff0c\u8be5\u4e8b\u52a1\u5360\u7528\u7684\u56de\u6eda\u6bb5\u4e8b\u52a1\u4f1a\u88ab\u6807\u8bb0\u4e3a\u975e\u6d3b\u52a8\uff0c\u56de\u6eda\u6bb5\u7a7a\u95f4\u53ef\u4ee5\u88ab\u8986\u76d6\u91cd\u7528\u3002\u90a3\u4e48\u4e00\u4e2a\u95ee\u9898\u5c31\u51fa\u73b0\u4e86\uff0c\u5982\u679c\u4e00\u4e2a\u67e5\u8be2\u9700\u8981\u4f7f\u7528\u88ab\u8986\u76d6\u7684\u56de\u6eda\u6bb5\u6784\u9020\u524d\u955c\u50cf\u5b9e\u73b0\u4e00\u81f4\u6027\u8bfb\uff0c\u90a3\u4e48\u6b64\u65f6\u5c31\u4f1a\u51fa\u73b0<a class=\"replace_word\" href=\"http:\/\/lib.csdn.net\/base\/oracle\" style=\"color: rgb(223,52,52); font-weight: bold; text-decoration: none\" target=\"_blank\" title=\"Oracle\u77e5\u8bc6\u5e93\">Oracle<\/a>\u8457\u540d\u7684ORA-01555\u9519\u8bef\u3002\n<\/p>\n<p style=\"text-align: left; widows: 1; text-transform: none; background-color: rgb(255,255,255); text-indent: 2em; font: 14px\/26px Arial; white-space: normal; letter-spacing: normal; color: rgb(51,51,51); word-spacing: 0px; -webkit-text-stroke-width: 0px\">\n\tORA-01555\u9519\u8bef\u7684\u53e6\u5916\u4e00\u4e2a\u539f<strong style=\"background-color: rgb(255,255,102); color: black\">\u56e0<\/strong>\u662f<strong style=\"background-color: rgb(255,255,102); color: black\">\u56e0<\/strong>\u4e3a\u5ef6\u8fdf\u5757\u6e05\u9664\uff08Delayed Block Cleanout\uff09\u3002\u5f53\u4e00\u4e2a\u67e5\u8be2\u89e6\u53d1\u5ef6\u8fdf\u5757\u6e05\u9664\u65f6\uff0cOracle\u9700\u8981\u53bb\u67e5\u8be2\u56de\u6eda\u6bb5\u83b7\u5f97\u8be5\u4e8b\u52a1\u7684\u63d0\u4ea4SCN\uff0c\u5982\u679c\u4e8b\u52a1\u7684\u524d\u955c\u50cf\u4fe1\u606f\u5df2\u7ecf\u88ab\u8986\u76d6\uff0c\u5e76\u4e14\u67e5\u8be2SCN\u4e5f\u5c0f\u4e8e\u56de\u6eda\u6bb5\u4e2d\u8bb0\u5f55\u7684\u6700\u5c0f\u63d0\u4ea4SCN\uff0c\u90a3\u4e48Oracle\u5c06\u65e0\u4ece\u5224\u65ad\u67e5\u8be2SCN\u548c\u4e8b\u52a1\u63d0\u4ea4SCN\u7684\u5927\u5c0f\uff0c\u6b64\u65f6\u51fa\u73b0\u5ef6\u8fdf\u5757\u6e05\u9664\u5bfc\u81f4\u7684ORA-01555\u9519\u8bef\u3002\n<\/p>\n<p style=\"text-align: left; widows: 1; text-transform: none; background-color: rgb(255,255,255); text-indent: 2em; font: 14px\/26px Arial; white-space: normal; letter-spacing: normal; color: rgb(51,51,51); word-spacing: 0px; -webkit-text-stroke-width: 0px\">\n\t\u53e6\u5916\u4e00\u79cd\u5bfc\u81f4ORA-01555\u9519\u8bef\u7684\u60c5\u51b5\u51fa\u73b0\u5728\u4f7f\u7528sqlldr\u76f4\u63a5\u65b9\u5f0f\u52a0\u8f7d\uff08direct=true\uff09\u6570\u636e\u65f6\u3002\u5f53\u901a\u8fc7sqlldr direct=true \u65b9\u5f0f\u52a0\u8f7d\u6570\u636e\u65f6\uff0c\u7531\u4e8e\u4e0d\u4ea7\u751f\u91cd\u505a\u548c\u56de\u6eda\u4fe1\u606f\uff0cOracle\u76f4\u63a5\u6307\u5b9aCached Commit SCN \u7ed9\u52a0\u8f7d\u6570\u636e\uff0c\u5728\u8bbf\u95ee\u8fd9\u4e9b\u6570\u636e\u65f6\uff0c\u6709\u65f6\u4f1a\u4ea7\u751fORA-01555\u9519\u8bef\u3002\n<\/p>\n<p style=\"text-align: left; widows: 1; text-transform: none; background-color: rgb(255,255,255); text-indent: 2em; font: 14px\/26px Arial; white-space: normal; letter-spacing: normal; color: rgb(51,51,51); word-spacing: 0px; -webkit-text-stroke-width: 0px\">\n\t\u770b\u4e0b\u56fe\u7684\u63cf\u8ff0\uff1a\u5047\u5b9a\u5728\u65f6\u95f4T\u7528\u6237A\u53d1\u51fa\u4e00\u6761\u66f4\u65b0\u8bed\u53e5\uff0c\u66f4\u65b0SCOTT\u7528\u6237\u7684SAL\uff1b\u7528\u6237B\u5728Ty\u65f6\u95f4\u53d1\u51fa\u67e5\u8be2\u8bed\u53e5\uff0c\u67e5\u8be2SCOTT\u7528\u6237\u7684SAL\uff1b\u7528\u6237A\u7684\u66f4\u65b0\u5728Tx\u65f6\u95f4\u63d0\u4ea4\uff0c\u63d0\u4ea4\u53ef\u80fd\u4e3a\u5feb\u901f\u63d0\u4ea4\u5757\u6e05\u9664\uff0c\u4e5f\u53ef\u80fd\u662f\u5ef6\u8fdf\u5757\u6e05\u9664\uff1b\u7528\u6237B\u7684\u67e5\u8be2\u5728Tz\u65f6\u95f4\u8f93\u51fa\u3002\n<\/p>\n<p style=\"text-align: left; widows: 1; text-transform: none; background-color: rgb(255,255,255); text-indent: 2em; font: 14px\/26px Arial; white-space: normal; letter-spacing: normal; color: rgb(51,51,51); word-spacing: 0px; -webkit-text-stroke-width: 0px\">\n\t\u6765\u770b\u4e00\u4e0b<a class=\"replace_word\" href=\"http:\/\/lib.csdn.net\/base\/mysql\" style=\"color: rgb(223,52,52); font-weight: bold; text-decoration: none\" target=\"_blank\" title=\"MySQL\u77e5\u8bc6\u5e93\">\u6570\u636e\u5e93<\/a>\u5728\u4e0d\u540c\u60c5\u51b5\u4e0b\u7684\u5185\u90e8\u5904\u7406\uff1a\n<\/p>\n<p style=\"text-align: left; widows: 1; text-transform: none; background-color: rgb(255,255,255); text-indent: 2em; font: 14px\/26px Arial; white-space: normal; letter-spacing: normal; color: rgb(51,51,51); word-spacing: 0px; -webkit-text-stroke-width: 0px\">\n\t\u5982\u679c Ty &lt; T &lt; Tz &lt; Tx \uff0c\u90a3\u4e48\u67e5\u8be2\u9700\u8981\u6784\u9020\u4e00\u81f4\u6027\u8bfb\uff0c\u7531\u4e8e\u4e8b\u52a1\u5c1a\u672a\u63d0\u4ea4\uff0c\u53ef\u4ee5\u901a\u8fc7\u56de\u6eda\u6bb5\u6784\u9020\u524d\u955c\u50cf\uff0c\u5b8c\u6210\u4e00\u81f4\u6027\u8bfb\u53d6\u3002<br \/>\n\t&middot;\u5982\u679c Ty &lt; T &lt; Tx &lt; Tz \uff0c\u7531\u4e8eTy\u67e5\u8be2\u65f6\u95f4\u5c0f\u4e8eT\u4e8b\u52a1\u66f4\u65b0\u65f6\u95f4\uff0c\u90a3\u4e48\u6570\u636e\u5e93\u9700\u8981\u6784\u9020\u4e00\u81f4\u6027\u8bfb\u53d6\uff0c\u800cTz\u67e5\u8be2\u5b8c\u6210\u65f6\u95f4\u5927\u4e8eTx\u63d0\u4ea4\u65f6\u95f4\uff0c\u90a3\u4e48\u524d\u955c\u50cf\u5c31\u6709\u53ef\u80fd\u88ab\u8986\u76d6\uff0c\u4e0d\u53ef\u83b7\u53d6\u3002\n<\/p>\n<p style=\"text-align: left; widows: 1; text-transform: none; background-color: rgb(255,255,255); text-indent: 2em; font: 14px\/26px Arial; white-space: normal; letter-spacing: normal; color: rgb(51,51,51); word-spacing: 0px; -webkit-text-stroke-width: 0px\">\n\t\u5982\u679cTx\u7684\u63d0\u4ea4\u65b9\u5f0f\u4e3aFast Block Cleanout\uff0c\u90a3\u4e48\u56de\u6eda\u6bb5\u4fe1\u606f\u4e0d\u53ef\u7528\u65f6\u5c31\u4f1a\u51fa\u73b0\u4e00\u81f4\u6027\u8bfbORA-01555\u9519\u8bef\u3002\n<\/p>\n<p style=\"text-align: left; widows: 1; text-transform: none; background-color: rgb(255,255,255); text-indent: 2em; font: 14px\/26px Arial; white-space: normal; letter-spacing: normal; color: rgb(51,51,51); word-spacing: 0px; -webkit-text-stroke-width: 0px\">\n\t\u5982\u679cTx\u7684\u63d0\u4ea4\u65b9\u5f0f\u4e3aDelayed Block Cleanout\uff0c\u90a3\u4e48\u56de\u6eda\u6bb5\u4fe1\u606f\u4e0d\u53ef\u7528\u65f6Oracle\u5c06\u65e0\u6cd5\u5224\u65adTy\u548cTx\u7684\u65f6\u95f4\u5148\u540e\u5173\u7cfb\u3002\u5982\u679c Ty &gt; Tx \uff0c\u90a3\u4e48Oracle\u53ef\u4ee5\u6b63\u5e38\u8fdb\u884c\u5757\u6e05\u9664\uff0c\u5e76\u5c06\u5757\u6e05\u9664\u540e\u7684\u6570\u636e\u8fd4\u56de\u7ed9\u7528\u6237B\uff1b\u5982\u679c Ty &lt; T \uff0c\u90a3\u4e48Oracle\u9700\u8981\u7ee7\u7eed\u6784\u9020\u4e00\u81f4\u6027\u8bfb\u8fd4\u56de\u7ed9\u7528\u6237B\uff1bOracle\u65e0\u6cd5\u5224\u65ad\u8fd9\u4e24\u79cd\u60c5\u51b5\uff0c\u5c31\u4f1a\u51fa\u73b0\u5ef6\u8fdf\u5757\u6e05\u9664ORA-01555\u9519\u8bef\u3002\n<\/p>\n<p style=\"text-align: left; widows: 1; text-transform: none; background-color: rgb(255,255,255); text-indent: 2em; font: 14px\/26px Arial; white-space: normal; letter-spacing: normal; color: rgb(51,51,51); word-spacing: 0px; -webkit-text-stroke-width: 0px\">\n\tORA-01555\u7684\u76f4\u89c2\u89e3\u91ca\u662f&ldquo;snapshot too old&rdquo;\uff0c\u4e5f\u5c31\u662f<a name=\"baidusnap4\" style=\"color: rgb(51,102,153); text-decoration: none\"><\/a><strong style=\"background-color: rgb(255,102,255); color: black\">\u5feb\u7167\u592a\u65e7<\/strong>\uff0c\u5176\u6839\u672c\u542b\u4e49\u5c31\u662f\u67e5\u8be2\u9700\u8981\u7684\u524d\u955c\u50cf\u8fc7\u4e8e&ldquo;\u4e45\u8fdc&rdquo;\uff0c\u5df2\u7ecf\u65e0\u6cd5\u627e\u5230\u4e86\u3002\u53ef\u4ee5\u60f3\u8c61\uff0c\u5982\u679c\u4e00\u4e2a\u5386\u65f6\u6570\u4e2a\u5c0f\u65f6\u6216\u5341\u51e0\u4e2a\u5c0f\u65f6\u7684\u67e5\u8be2\uff0c\u5982\u679c\u6700\u540e\u906d\u9047ORA-01555\u9519\u8bef\u800c\u5931\u8d25\uff0c\u4f1a\u662f\u591a\u4e48\u4ee4\u4eba\u6cae\u4e27\u7684\u4e00\u4ef6\u4e8b\u3002\u4e00\u76f4\u4ee5\u6765\uff0cORA-01555\u90fd\u662fORACLE\u6700\u4e3a\u5934\u75db\u7684\u95ee\u9898\u4e4b\u4e00\u3002\n<\/p>\n<p style=\"text-align: left; widows: 1; text-transform: none; background-color: rgb(255,255,255); text-indent: 2em; font: 14px\/26px Arial; white-space: normal; letter-spacing: normal; color: rgb(51,51,51); word-spacing: 0px; -webkit-text-stroke-width: 0px\">\n\t\u5728Oracle 9i\u7684\u6587\u6863\u4e2d\u8fd9\u6837\u63cf\u8ff0ORA-01555\u9519\u8bef\uff1a\n<\/p>\n<p style=\"text-align: left; widows: 1; text-transform: none; background-color: rgb(255,255,255); text-indent: 2em; font: 14px\/26px Arial; white-space: normal; letter-spacing: normal; color: rgb(51,51,51); word-spacing: 0px; -webkit-text-stroke-width: 0px\">\n\t01555, 00000, &quot;snapshot too old: rollback segment number %s with name \\&quot;%s\\&quot; too small&quot;<br \/>\n\t\/\/ *Cause: rollback records needed by a reader for consistent read are<br \/>\n\t\/\/&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; overwritten by other writers<br \/>\n\t\/\/ *Action: If in Automatic Undo Management mode, increase undo_retention<br \/>\n\t\/\/&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; setting. Otherwise, use larger rollback segments\n<\/p>\n<p style=\"text-align: left; widows: 1; text-transform: none; background-color: rgb(255,255,255); text-indent: 2em; font: 14px\/26px Arial; white-space: normal; letter-spacing: normal; color: rgb(51,51,51); word-spacing: 0px; -webkit-text-stroke-width: 0px\">\n\t\u53ef\u4ee5\u770b\u5230\uff0c\u5728Oracle 9i\u81ea\u52a8\u7ba1\u7406UNDO<strong style=\"background-color: rgb(160,255,255); color: black\">\u8868\u7a7a\u95f4<\/strong>\u6a21\u5f0f\u4e0b\uff0cUNDO_RETENTION\u53c2\u6570\u7684\u5f15\u5165\u6b63\u662f\u4e3a\u4e86\u51cf\u5c11ORA-01555\u9519\u8bef\u7684\u51fa\u73b0\u3002\u8fd9\u4e2a\u53c2\u6570\u8bbe\u7f6e\u5f53\u4e8b\u52a1\u63d0\u4ea4\u4e4b\u540e\uff08\u56de\u6eda\u6bb5\u53d8\u5f97\u975e\u6d3b\u8dc3\uff09\uff0c\u56de\u6eda\u6bb5\u4e2d\u7684\u524d\u955c\u50cf\u6570\u636e\u5728\u88ab\u8986\u76d6\u524d\u4fdd\u7559\u7684\u65f6\u95f4\uff0c\u8be5\u53c2\u6570\u4ee5\u79d2\u4e3a\u5355\u4f4d\uff0c9iR1\u521d\u59cb\u503c\u4e3a900\u79d2\uff0c\u5728Oracle 9iR2\u589e\u52a0\u4e3a10800\u79d2\u3002\n<\/p>\n<p style=\"text-align: left; widows: 1; text-transform: none; background-color: rgb(255,255,255); text-indent: 2em; font: 14px\/26px Arial; white-space: normal; letter-spacing: normal; color: rgb(51,51,51); word-spacing: 0px; -webkit-text-stroke-width: 0px\">\n\t\u663e\u7136\u8be5\u53c2\u6570\u8bbe\u7f6e\u7684\u8d8a\u9ad8\u5c31\u8d8a\u80fd\u51cf\u5c11ORA-01555\u9519\u8bef\u7684\u51fa\u73b0\uff0c\u4f46\u662f\u4fdd\u7559\u65f6\u95f4\u548c\u5b58\u50a8\u7a7a\u95f4\u662f\u7d27\u5bc6\u76f8\u5173\u7684\uff0c\u5982\u679cUNDO<strong style=\"background-color: rgb(160,255,255); color: black\">\u8868\u7a7a\u95f4<\/strong>\u7684\u5b58\u50a8\u7a7a\u95f4\u6709\u9650\uff0c\u90a3\u4e48Oracle\u5c31\u4f1a\u9009\u62e9\u56de\u6536\u5df2\u63d0\u4ea4\u4e8b\u52a1\u5360\u7528\u7684\u7a7a\u95f4\uff0c\u7f6eUNDO_RETENTION\u53c2\u6570\u4e8e\u4e0d\u987e\u3002\n<\/p>\n<p style=\"text-align: left; widows: 1; text-transform: none; background-color: rgb(255,255,255); text-indent: 2em; font: 14px\/26px Arial; white-space: normal; letter-spacing: normal; color: rgb(51,51,51); word-spacing: 0px; -webkit-text-stroke-width: 0px\">\n\t\u5728Oracle 9i\u7684AUM\u6a21\u5f0f\u4e0b\uff0cUNDO_RETENTION\u5b9e\u9645\u4e0a\u662f\u4e00\u4e2a\u975e\u62c5\u4fdd\uff08NO Guaranteed\uff09<a name=\"baidusnap3\" style=\"color: rgb(51,102,153); text-decoration: none\"><\/a><strong style=\"background-color: rgb(255,153,153); color: black\">\u9650\u5236<\/strong>\u3002\u4e5f\u5c31\u662f\u8bf4\uff0c\u5982\u679c\u6709\u5176\u4ed6\u4e8b\u52a1\u9700\u8981\u56de\u6eda\u7a7a\u95f4\uff0c\u800c\u7a7a\u95f4\u51fa\u73b0\u4e0d\u8db3\u65f6\uff0c\u8fd9\u4e9b\u4fe1\u606f\u4ecd\u7136\u4f1a\u88ab\u8986\u76d6\uff1b\u4eceOracle 10g\u5f00\u59cb\uff0cOracle\u5bf9\u4e8eUNDO\u589e\u52a0\u4e86Guarantee\u63a7\u5236\uff0c\u4e5f\u5c31\u662f\u8bf4\uff0c\u53ef\u4ee5\u6307\u5b9aUNDO<strong style=\"background-color: rgb(160,255,255); color: black\">\u8868\u7a7a\u95f4<\/strong>\u5fc5\u987b\u6ee1\u8db3UNDO_RETENTION\u7684<strong style=\"background-color: rgb(255,153,153); color: black\">\u9650\u5236<\/strong>\u3002\u5f53UNDO<strong style=\"background-color: rgb(160,255,255); color: black\">\u8868\u7a7a\u95f4<\/strong>\u8bbe\u7f6e\u4e3aGuarantee\uff0c\u90a3\u4e48\u63d0\u4ea4\u4e8b\u52a1\u7684\u56de\u6eda\u7a7a\u95f4\u5fc5\u987b\u88ab\u4fdd\u7559\u8db3\u591f\u7684\u65f6\u95f4\uff0c\u5982\u679cUNDO<strong style=\"background-color: rgb(160,255,255); color: black\">\u8868\u7a7a\u95f4<\/strong>\u7684\u7a7a\u95f4\u4e0d\u8db3\uff0c\u90a3\u4e48\u65b0\u7684\u4e8b\u52a1\u4f1a<strong style=\"background-color: rgb(255,255,102); color: black\">\u56e0<\/strong>\u7a7a\u95f4\u4e0d\u8db3\u800c\u5931\u8d25\uff0c\u800c\u4e0d\u662f\u9009\u62e9\u4e4b\u524d\u7684\u8986\u76d6\u3002\n<\/p>\n<p style=\"text-align: left; widows: 1; text-transform: none; background-color: rgb(255,255,255); text-indent: 2em; font: 14px\/26px Arial; white-space: normal; letter-spacing: normal; color: rgb(51,51,51); word-spacing: 0px; -webkit-text-stroke-width: 0px\">\n\t\u4ece\u5404\u4e2a\u4e0d\u540c\u7248\u672c\u56de\u6eda\u6bb5\u7684\u7ba1\u7406\u53d8\u8fc1\uff0c\u6211\u4eec\u53ef\u4ee5\u770b\u51faOracle\u4e00\u76f4\u5728\u8fdb\u6b65\u3002\n<\/p>\n<p style=\"text-align: left; widows: 1; text-transform: none; background-color: rgb(255,255,255); text-indent: 2em; font: 14px\/26px Arial; white-space: normal; letter-spacing: normal; color: rgb(51,51,51); word-spacing: 0px; -webkit-text-stroke-width: 0px\">\n\tOracle\u63d0\u4f9b\u4e86\u4e00\u4e2a\u5185\u90e8\u4e8b\u4ef6\uff0810203\u4e8b\u4ef6\uff09\u53ef\u4ee5\u7528\u6765\u8ddf\u8e2a\u6570\u636e\u5e93\u7684\u5757\u6e05\u9664\u64cd\u4f5c\uff0c10203\u4e8b\u4ef6\u53ef\u4ee5\u901a\u8fc7\u4ee5\u4e0b\u547d\u4ee4\u8bbe\u7f6e\uff0c\u8bbe\u7f6e\u540e\u9700\u8981\u91cd\u65b0\u542f\u52a8\u6570\u636e\u5e93\u8be5\u53c2\u6570\u65b9\u80fd\u751f\u6548\uff1a\n<\/p>\n<p style=\"text-align: left; widows: 1; text-transform: none; background-color: rgb(255,255,255); text-indent: 0px; font: 14px\/26px Arial; white-space: normal; letter-spacing: normal; color: rgb(51,51,51); word-spacing: 0px; -webkit-text-stroke-width: 0px\">\n\t<br \/>\n\t&nbsp;\n<\/p>\n<p style=\"text-align: left; widows: 1; text-transform: none; background-color: rgb(255,255,255); text-indent: 2em; font: 14px\/26px Arial; white-space: normal; letter-spacing: normal; color: rgb(51,51,51); word-spacing: 0px; -webkit-text-stroke-width: 0px\">\n\talter system set event=&quot;10203 trace name context forever&quot; scope=spfile;\n<\/p>\n<p style=\"text-align: left; widows: 1; text-transform: none; background-color: rgb(255,255,255); text-indent: 0px; font: 14px\/26px Arial; white-space: normal; letter-spacing: normal; color: rgb(51,51,51); word-spacing: 0px; -webkit-text-stroke-width: 0px\">\n\t<br \/>\n\t&nbsp;\n<\/p>\n<p style=\"text-align: left; widows: 1; text-transform: none; background-color: rgb(255,255,255); text-indent: 2em; font: 14px\/26px Arial; white-space: normal; letter-spacing: normal; color: rgb(51,51,51); word-spacing: 0px; -webkit-text-stroke-width: 0px\">\n\t\u9700\u8981\u6ce8\u610f\u7684\u662f\uff0c\u53ef\u80fd\u5b58\u5728\u53e6\u5916\u4e00\u79cd\u60c5\u51b5\uff0c\u5c31\u662f\u5f53\u6267\u884c\u5ef6\u8fdf\u5757\u6e05\u9664\u65f6\uff0c\u56de\u6eda\u6bb5\u6216\u539f\u56de\u6eda<strong style=\"background-color: rgb(160,255,255); color: black\">\u8868\u7a7a\u95f4<\/strong>\u5df2\u7ecf\u88ab\u5220\u9664\uff0c\u6b64\u65f6Oracle\u4ecd\u7136\u53ef\u4ee5\u901a\u8fc7\u5b57\u5178\u8868UNDO$\u6765\u83b7\u5f97SCN\u4fe1\u606f\uff0c\u6267\u884c\u5757\u6e05\u9664\u3002\n<\/p>\n<p style=\"text-align: left; widows: 1; text-transform: none; background-color: rgb(255,255,255); text-indent: 2em; font: 14px\/26px Arial; white-space: normal; letter-spacing: normal; color: rgb(51,51,51); word-spacing: 0px; -webkit-text-stroke-width: 0px\">\n\t\u5173\u4e8eOracle\u7684\u63d0\u4ea4\u5904\u7406\u53ca\u5757\u6e05\u9664\u673a\u5236\u662f\u4e00\u4e2a\u6781\u5176\u590d\u6742\u7684\u8fc7\u7a0b\uff0c\u672c\u6587\u5bf9\u8fd9\u90e8\u5206\u5185\u5bb9\u8fdb\u884c\u4e86\u9002\u5f53\u7b80\u5316\u8bf4\u660e\uff0c\u65e8\u5728\u4f7f\u5927\u5bb6\u80fd\u591f\u5bf9Oracle\u7684\u56de\u6eda\u673a\u5236\u3001\u5757\u6e05\u9664\u673a\u5236\u6709\u6240\u4e86\u89e3\u3002\n<\/p>\n<p style=\"text-align: left; widows: 1; text-transform: none; background-color: rgb(255,255,255); text-indent: 2em; font: 14px\/26px Arial; white-space: normal; letter-spacing: normal; color: rgb(51,51,51); word-spacing: 0px; -webkit-text-stroke-width: 0px\">\n\t&#8211; The End &#8211;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u8f6c\u8f7d\u5730\u5740\uff1ahttp:\/\/blog.csdn.net\/liaoyuanzi\/article\/details\/77 &hellip; <a href=\"https:\/\/www.llku.com\/?p=887\" class=\"more-link\">\u7ee7\u7eed\u9605\u8bfb<span class=\"screen-reader-text\">Oracle ORA-01555\u5feb\u7167\u8fc7\u65e7\u7684\u9519\u8bef\uff08\u8f6c\u8f7d\uff09<\/span> <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[68],"tags":[133],"_links":{"self":[{"href":"https:\/\/www.llku.com\/index.php?rest_route=\/wp\/v2\/posts\/887"}],"collection":[{"href":"https:\/\/www.llku.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.llku.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.llku.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.llku.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=887"}],"version-history":[{"count":2,"href":"https:\/\/www.llku.com\/index.php?rest_route=\/wp\/v2\/posts\/887\/revisions"}],"predecessor-version":[{"id":889,"href":"https:\/\/www.llku.com\/index.php?rest_route=\/wp\/v2\/posts\/887\/revisions\/889"}],"wp:attachment":[{"href":"https:\/\/www.llku.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=887"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.llku.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=887"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.llku.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=887"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}