{"id":15849,"date":"2023-12-04T23:28:52","date_gmt":"2023-12-04T15:28:52","guid":{"rendered":"https:\/\/wx.kaifamiao.info\/?p=15849"},"modified":"2023-12-04T23:32:25","modified_gmt":"2023-12-04T15:32:25","slug":"oracle-zhong-0ra01555-de-ying-dui-fang-fa-3","status":"publish","type":"post","link":"http:\/\/wx.kaifamiao.info\/index.php\/2023\/12\/04\/oracle-zhong-0ra01555-de-ying-dui-fang-fa-3\/","title":{"rendered":"Oracle \u4e2d 0RA-01555 \u7684\u5e94\u5bf9\u65b9\u6cd5\uff1f"},"content":{"rendered":"<p>ORA-01555 \u9519\u8bef\u662f Oracle \u6570\u636e\u5e93\u4e2d\u7684\u4e00\u79cd\u5feb\u7167\u592a\u65e7\uff08Snapshot too old\uff09\u9519\u8bef\uff0c\u901a\u5e38\u5728\u957f\u65f6\u95f4\u8fd0\u884c\u7684\u4e8b\u52a1\u6216\u67e5\u8be2\u4e2d\u51fa\u73b0\u3002\u5b83\u8868\u793a\u5728\u67e5\u8be2\u671f\u95f4\uff0c\u9700\u8981\u7684\u6570\u636e\u5df2\u7ecf\u88ab\u5176\u4ed6\u4e8b\u52a1\u4fee\u6539\uff0c\u5bfc\u81f4\u67e5\u8be2\u65e0\u6cd5\u8bfb\u53d6\u4e00\u81f4\u7684\u6570\u636e\u5feb\u7167\u3002\u4ee5\u4e0b\u662f\u5904\u7406 ORA-01555 \u9519\u8bef\u7684\u4e00\u4e9b\u5efa\u8bae\u65b9\u6cd5\uff1a<\/p>\n<ol>\n<li><strong>\u589e\u5927 UNDO \u8868\u7a7a\u95f4\uff1a<\/strong>\n<ul>\n<li>\u589e\u5927 UNDO \u8868\u7a7a\u95f4\u7684\u5927\u5c0f\uff0c\u53ef\u4ee5\u5ef6\u957f\u4e8b\u52a1\u7684\u56de\u6eda\u6bb5\u7684\u4fdd\u7559\u65f6\u95f4\uff0c\u51cf\u5c11 ORA-01555 \u9519\u8bef\u7684\u53d1\u751f\u673a\u4f1a\u3002<\/li>\n<\/ul>\n<\/li>\n<li><strong>\u589e\u52a0 UNDO_RETENTION \u53c2\u6570\uff1a<\/strong>\n<ul>\n<li>\u589e\u52a0 <code>UNDO_RETENTION<\/code> \u53c2\u6570\u7684\u503c\uff0c\u8be5\u53c2\u6570\u63a7\u5236 UNDO \u4fdd\u7559\u7684\u79d2\u6570\u3002\u589e\u5927\u8fd9\u4e2a\u503c\u53ef\u4ee5\u589e\u52a0 UNDO \u6570\u636e\u7684\u751f\u5b58\u5468\u671f\uff0c\u51cf\u5c11 ORA-01555 \u9519\u8bef\u7684\u53ef\u80fd\u6027\u3002<\/li>\n<\/ul>\n<pre><code class=\"language-sql  line-numbers\">ALTER SYSTEM SET UNDO_RETENTION = &lt;new_value&gt; SCOPE=BOTH;\n<\/code><\/pre>\n<\/li>\n<li><strong>\u4f7f\u7528\u5408\u9002\u7684\u4e8b\u52a1\u9694\u79bb\u7ea7\u522b\uff1a<\/strong>\n<ul>\n<li>\u5728\u5f00\u53d1\u5e94\u7528\u7a0b\u5e8f\u65f6\uff0c\u4f7f\u7528\u5408\u9002\u7684\u4e8b\u52a1\u9694\u79bb\u7ea7\u522b\uff08\u4f8b\u5982 READ COMMITTED\uff09\u53ef\u4ee5\u964d\u4f4e\u51fa\u73b0 ORA-01555 \u9519\u8bef\u7684\u6982\u7387\u3002<\/li>\n<\/ul>\n<\/li>\n<li><strong>\u5206\u6279\u6b21\u5904\u7406\u6570\u636e\uff1a<\/strong>\n<ul>\n<li>\u5c06\u5927\u7684\u6570\u636e\u64cd\u4f5c\u5206\u6210\u8f83\u5c0f\u7684\u6279\u6b21\uff0c\u4ee5\u51cf\u5c11\u5355\u4e2a\u4e8b\u52a1\u7684\u6301\u7eed\u65f6\u95f4\u3002\u8fd9\u6709\u52a9\u4e8e\u964d\u4f4e ORA-01555 \u9519\u8bef\u7684\u53d1\u751f\u6982\u7387\u3002<\/li>\n<\/ul>\n<\/li>\n<li><strong>\u4f7f\u7528\u5feb\u7167\u4e00\u81f4\u6027\u8bfb\u53d6\uff1a<\/strong>\n<ul>\n<li>\u5728\u957f\u65f6\u95f4\u8fd0\u884c\u7684\u67e5\u8be2\u4e2d\uff0c\u4f7f\u7528 <code>AS OF SCN<\/code> \u6216 <code>AS OF TIMESTAMP<\/code> \u8bed\u53e5\u6765\u5b9e\u73b0\u5feb\u7167\u4e00\u81f4\u6027\u8bfb\u53d6\uff0c\u53ef\u4ee5\u964d\u4f4e ORA-01555 \u9519\u8bef\u7684\u98ce\u9669\u3002<\/li>\n<\/ul>\n<pre><code class=\"language-sql  line-numbers\">SELECT * FROM your_table AS OF TIMESTAMP (SYSTIMESTAMP - INTERVAL '10' MINUTE);\n<\/code><\/pre>\n<\/li>\n<li><strong>\u8c03\u6574\u67e5\u8be2\u903b\u8f91\uff1a<\/strong>\n<ul>\n<li>\u8003\u8651\u662f\u5426\u53ef\u4ee5\u901a\u8fc7\u8c03\u6574\u67e5\u8be2\u903b\u8f91\u6765\u907f\u514d ORA-01555 \u9519\u8bef\uff0c\u4f8b\u5982\u4f7f\u7528\u66f4\u77ed\u7684\u4e8b\u52a1\u6216\u66f4\u9891\u7e41\u5730\u63d0\u4ea4\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<p>\u8bf7\u6ce8\u610f\uff0c\u5177\u4f53\u7684\u5904\u7406\u65b9\u6cd5\u53ef\u80fd\u56e0\u6570\u636e\u5e93\u7248\u672c\u3001\u914d\u7f6e\u548c\u5e94\u7528\u7a0b\u5e8f\u7684\u7279\u5b9a\u60c5\u51b5\u800c\u6709\u6240\u4e0d\u540c\u3002\u5728\u91c7\u53d6\u4efb\u4f55\u63aa\u65bd\u4e4b\u524d\uff0c\u5efa\u8bae\u4ed4\u7ec6\u5206\u6790\u5e94\u7528\u7a0b\u5e8f\u7684\u8bbe\u8ba1\u548c\u67e5\u8be2\u7684\u5b9e\u73b0\u65b9\u5f0f\uff0c\u5e76\u8fdb\u884c\u6d4b\u8bd5\u4ee5\u786e\u4fdd\u6240\u505a\u7684\u66f4\u6539\u4e0d\u4f1a\u5f15\u5165\u5176\u4ed6\u95ee\u9898\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>ORA-01555 \u9519\u8bef\u662f Oracle \u6570\u636e\u5e93\u4e2d\u7684\u4e00\u79cd\u5feb\u7167\u592a\u65e7\uff08Snapshot too old\uff09\u9519\u8bef\uff0c\u901a\u5e38 [&hellip;]<\/p>\n","protected":false},"author":11,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[120],"tags":[],"class_list":["post-15849","post","type-post","status-publish","format-standard","hentry","category-oracel"],"_links":{"self":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/15849","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/users\/11"}],"replies":[{"embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/comments?post=15849"}],"version-history":[{"count":1,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/15849\/revisions"}],"predecessor-version":[{"id":15850,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/15849\/revisions\/15850"}],"wp:attachment":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/media?parent=15849"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/categories?post=15849"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/tags?post=15849"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}