{"id":172971,"date":"2024-11-07T15:36:20","date_gmt":"2024-11-07T07:36:20","guid":{"rendered":"https:\/\/server.hk\/cnblog\/172971\/"},"modified":"2024-11-07T15:36:20","modified_gmt":"2024-11-07T07:36:20","slug":"%e5%a6%82%e4%bd%95%e6%9f%a5%e6%89%be%e5%b7%b2%e7%b6%93%e8%a2%ab%e5%88%aa%e9%99%a4%e7%9a%84%e6%95%b8%e6%93%9a%e5%ba%ab-%e6%9f%a5%e8%a9%a2%e8%a2%abdelete%e7%9a%84%e6%95%b8%e6%93%9a%e5%ba%ab","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/172971\/","title":{"rendered":"\u5982\u4f55\u67e5\u627e\u5df2\u7d93\u88ab\u522a\u9664\u7684\u6578\u64da\u5eab (\u67e5\u8a62\u88abdelete\u7684\u6578\u64da\u5eab)"},"content":{"rendered":"<h1 id=\"%e5%a6%82%e4%bd%95%e6%9f%a5%e6%89%be%e5%b7%b2%e7%b6%93%e8%a2%ab%e5%88%aa%e9%99%a4%e7%9a%84%e6%95%b8%e6%93%9a%e5%ba%ab-%e6%9f%a5%e8%a9%a2%e8%a2%abdelete%e7%9a%84%e6%95%b8%e6%93%9a%e5%ba%ab-sLHddtuPuN\">\u5982\u4f55\u67e5\u627e\u5df2\u7d93\u88ab\u522a\u9664\u7684\u6578\u64da\u5eab (\u67e5\u8a62\u88abdelete\u7684\u6578\u64da\u5eab)<\/h1>\n<p>\u5728\u6578\u64da\u7ba1\u7406\u4e2d\uff0c\u6578\u64da\u7684\u522a\u9664\u662f\u4e00\u500b\u5e38\u898b\u7684\u64cd\u4f5c\uff0c\u7121\u8ad6\u662f\u56e0\u70ba\u932f\u8aa4\u64cd\u4f5c\u9084\u662f\u6578\u64da\u6e05\u7406\u3002\u7136\u800c\uff0c\u7576\u6578\u64da\u88ab\u522a\u9664\u5f8c\uff0c\u5982\u4f55\u6709\u6548\u5730\u67e5\u627e\u548c\u6062\u5fa9\u9019\u4e9b\u6578\u64da\u6210\u70ba\u4e86\u4e00\u500b\u91cd\u8981\u7684\u8ab2\u984c\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u4e00\u4e9b\u67e5\u627e\u5df2\u7d93\u88ab\u522a\u9664\u7684\u6578\u64da\u5eab\u7684\u65b9\u6cd5\u548c\u6280\u5de7\u3002<\/p>\n<h2 id=\"1-%e7%90%86%e8%a7%a3%e6%95%b8%e6%93%9a%e5%88%aa%e9%99%a4%e7%9a%84%e9%81%8e%e7%a8%8b-sLHddtuPuN\">1. \u7406\u89e3\u6578\u64da\u522a\u9664\u7684\u904e\u7a0b<\/h2>\n<p>\u5728\u6578\u64da\u5eab\u4e2d\uff0c\u522a\u9664\u64cd\u4f5c\u901a\u5e38\u662f\u901a\u904e SQL \u8a9e\u53e5\u57f7\u884c\u7684\uff0c\u4f8b\u5982\uff1a<\/p>\n<pre><code>DELETE FROM \u8868\u540d WHERE \u689d\u4ef6;<\/code><\/pre>\n<p>\u9019\u500b\u64cd\u4f5c\u6703\u5c07\u7b26\u5408\u689d\u4ef6\u7684\u6578\u64da\u5f9e\u6578\u64da\u5eab\u4e2d\u79fb\u9664\u3002\u9700\u8981\u6ce8\u610f\u7684\u662f\uff0c\u9019\u4e9b\u6578\u64da\u5728\u7269\u7406\u4e0a\u53ef\u80fd\u4ecd\u7136\u5b58\u5728\u65bc\u6578\u64da\u5eab\u4e2d\uff0c\u76f4\u5230\u6578\u64da\u5eab\u9032\u884c\u4e86\u7a7a\u9593\u56de\u6536\u6216\u91cd\u7d44\u3002<\/p>\n<h2 id=\"2-%e4%bd%bf%e7%94%a8%e4%ba%8b%e5%8b%99%e6%97%a5%e8%aa%8c%e6%81%a2%e5%be%a9%e6%95%b8%e6%93%9a-sLHddtuPuN\">2. \u4f7f\u7528\u4e8b\u52d9\u65e5\u8a8c\u6062\u5fa9\u6578\u64da<\/h2>\n<p>\u8a31\u591a\u6578\u64da\u5eab\u7cfb\u7d71\uff08\u5982 MySQL\u3001PostgreSQL\uff09\u90fd\u6703\u8a18\u9304\u4e8b\u52d9\u65e5\u8a8c\u3002\u9019\u4e9b\u65e5\u8a8c\u53ef\u4ee5\u7528\u4f86\u8ffd\u8e64\u6578\u64da\u7684\u8b8a\u66f4\uff0c\u5305\u62ec\u522a\u9664\u64cd\u4f5c\u3002\u901a\u904e\u5206\u6790\u4e8b\u52d9\u65e5\u8a8c\uff0c\u53ef\u4ee5\u627e\u5230\u88ab\u522a\u9664\u7684\u6578\u64da\u4e26\u9032\u884c\u6062\u5fa9\u3002<\/p>\n<h3 id=\"2-1-mysql-%e7%9a%84%e4%ba%8c%e9%80%b2%e5%88%b6%e6%97%a5%e8%aa%8c-sLHddtuPuN\">2.1 MySQL \u7684\u4e8c\u9032\u5236\u65e5\u8a8c<\/h3>\n<p>\u5728 MySQL \u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528\u4e8c\u9032\u5236\u65e5\u8a8c\u4f86\u6062\u5fa9\u522a\u9664\u7684\u6578\u64da\u3002\u9996\u5148\uff0c\u78ba\u4fdd\u4e8c\u9032\u5236\u65e5\u8a8c\u529f\u80fd\u5df2\u555f\u7528\u3002\u7136\u5f8c\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u67e5\u770b\u65e5\u8a8c\uff1a<\/p>\n<pre><code>SHOW BINARY LOGS;<\/code><\/pre>\n<p>\u63a5\u4e0b\u4f86\uff0c\u53ef\u4ee5\u4f7f\u7528 <code>mysqlbinlog<\/code> \u5de5\u5177\u4f86\u67e5\u770b\u5177\u9ad4\u7684\u65e5\u8a8c\u5167\u5bb9\uff1a<\/p>\n<pre><code>mysqlbinlog binlog.000001<\/code><\/pre>\n<p>\u901a\u904e\u5206\u6790\u65e5\u8a8c\uff0c\u53ef\u4ee5\u627e\u5230\u522a\u9664\u64cd\u4f5c\u4e4b\u524d\u7684\u6578\u64da\u72c0\u614b\uff0c\u4e26\u624b\u52d5\u6062\u5fa9\u3002<\/p>\n<h3 id=\"2-2-postgresql-%e7%9a%84%e4%ba%8b%e5%8b%99%e6%97%a5%e8%aa%8c-sLHddtuPuN\">2.2 PostgreSQL \u7684\u4e8b\u52d9\u65e5\u8a8c<\/h3>\n<p>\u5728 PostgreSQL \u4e2d\uff0c\u4e8b\u52d9\u65e5\u8a8c\uff08WAL\uff09\u4e5f\u53ef\u4ee5\u7528\u4f86\u6062\u5fa9\u6578\u64da\u3002\u4f7f\u7528 <code>pg_waldump<\/code> \u547d\u4ee4\u53ef\u4ee5\u67e5\u770b WAL \u65e5\u8a8c\uff1a<\/p>\n<pre><code>pg_waldump \/path\/to\/wal<\/code><\/pre>\n<p>\u9019\u6a23\u53ef\u4ee5\u627e\u5230\u522a\u9664\u64cd\u4f5c\u7684\u5177\u9ad4\u4fe1\u606f\uff0c\u4e26\u6839\u64da\u9700\u8981\u9032\u884c\u6062\u5fa9\u3002<\/p>\n<h2 id=\"3-%e4%bd%bf%e7%94%a8%e5%82%99%e4%bb%bd%e6%81%a2%e5%be%a9%e6%95%b8%e6%93%9a-sLHddtuPuN\">3. \u4f7f\u7528\u5099\u4efd\u6062\u5fa9\u6578\u64da<\/h2>\n<p>\u5b9a\u671f\u5099\u4efd\u662f\u6578\u64da\u7ba1\u7406\u4e2d\u7684\u6700\u4f73\u5be6\u8e10\u4e4b\u4e00\u3002\u5982\u679c\u5728\u522a\u9664\u6578\u64da\u5f8c\u767c\u73fe\u9700\u8981\u6062\u5fa9\uff0c\u53ef\u4ee5\u901a\u904e\u5099\u4efd\u4f86\u627e\u56de\u9019\u4e9b\u6578\u64da\u3002\u6839\u64da\u5099\u4efd\u7684\u985e\u578b\uff08\u5168\u5099\u4efd\u3001\u589e\u91cf\u5099\u4efd\uff09\uff0c\u53ef\u4ee5\u9078\u64c7\u5408\u9069\u7684\u6062\u5fa9\u7b56\u7565\u3002<\/p>\n<h3 id=\"3-1-%e5%85%a8%e5%82%99%e4%bb%bd%e6%81%a2%e5%be%a9-sLHddtuPuN\">3.1 \u5168\u5099\u4efd\u6062\u5fa9<\/h3>\n<p>\u5982\u679c\u6709\u5168\u5099\u4efd\uff0c\u53ef\u4ee5\u76f4\u63a5\u5c07\u6578\u64da\u5eab\u6062\u5fa9\u5230\u5099\u4efd\u6642\u7684\u72c0\u614b\u3002\u9019\u901a\u5e38\u662f\u6700\u7c21\u55ae\u548c\u6700\u6709\u6548\u7684\u65b9\u6cd5\u3002<\/p>\n<h3 id=\"3-2-%e5%a2%9e%e9%87%8f%e5%82%99%e4%bb%bd%e6%81%a2%e5%be%a9-sLHddtuPuN\">3.2 \u589e\u91cf\u5099\u4efd\u6062\u5fa9<\/h3>\n<p>\u5982\u679c\u4f7f\u7528\u589e\u91cf\u5099\u4efd\uff0c\u5247\u9700\u8981\u5148\u6062\u5fa9\u6700\u8fd1\u7684\u5168\u5099\u4efd\uff0c\u7136\u5f8c\u4f9d\u6b21\u61c9\u7528\u589e\u91cf\u5099\u4efd\uff0c\u4ee5\u6062\u5fa9\u5230\u6700\u65b0\u72c0\u614b\u3002<\/p>\n<h2 id=\"4-%e4%bd%bf%e7%94%a8%e6%95%b8%e6%93%9a%e6%81%a2%e5%be%a9%e5%b7%a5%e5%85%b7-sLHddtuPuN\">4. \u4f7f\u7528\u6578\u64da\u6062\u5fa9\u5de5\u5177<\/h2>\n<p>\u5e02\u5834\u4e0a\u6709\u8a31\u591a\u6578\u64da\u6062\u5fa9\u5de5\u5177\u53ef\u4ee5\u5e6b\u52a9\u627e\u56de\u88ab\u522a\u9664\u7684\u6578\u64da\u3002\u4f8b\u5982\uff0c<strong>Stellar Phoenix<\/strong> \u548c <strong>EaseUS Data Recovery Wizard<\/strong> \u7b49\u5de5\u5177\u53ef\u4ee5\u6383\u63cf\u6578\u64da\u5eab\u6587\u4ef6\uff0c\u4e26\u5617\u8a66\u6062\u5fa9\u522a\u9664\u7684\u6578\u64da\u3002<\/p>\n<h2 id=\"5-%e9%a0%90%e9%98%b2%e6%8e%aa%e6%96%bd-sLHddtuPuN\">5. \u9810\u9632\u63aa\u65bd<\/h2>\n<p>\u70ba\u4e86\u907f\u514d\u672a\u4f86\u6578\u64da\u4e1f\u5931\u7684\u60c5\u6cc1\uff0c\u5efa\u8b70\u63a1\u53d6\u4ee5\u4e0b\u9810\u9632\u63aa\u65bd\uff1a<\/p>\n<ul>\n<li>\u5b9a\u671f\u5099\u4efd\u6578\u64da\u5eab\u3002<\/li>\n<li>\u4f7f\u7528\u4e8b\u52d9\u4f86\u5305\u88f9\u6578\u64da\u64cd\u4f5c\uff0c\u78ba\u4fdd\u6578\u64da\u7684\u4e00\u81f4\u6027\u3002<\/li>\n<li>\u8a2d\u7f6e\u9069\u7576\u7684\u6b0a\u9650\uff0c\u9650\u5236\u522a\u9664\u64cd\u4f5c\u7684\u6b0a\u9650\u3002<\/li>\n<\/ul>\n<h1 id=\"%e7%b8%bd%e7%b5%90-sLHddtuPuN\">\u7e3d\u7d50<\/h1>\n<p>\u67e5\u627e\u5df2\u7d93\u88ab\u522a\u9664\u7684\u6578\u64da\u5eab\u662f\u4e00\u500b\u8907\u96dc\u7684\u904e\u7a0b\uff0c\u4f46\u901a\u904e\u7406\u89e3\u6578\u64da\u522a\u9664\u7684\u904e\u7a0b\u3001\u5229\u7528\u4e8b\u52d9\u65e5\u8a8c\u3001\u5099\u4efd\u548c\u6578\u64da\u6062\u5fa9\u5de5\u5177\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u6062\u5fa9\u4e1f\u5931\u7684\u6578\u64da\u3002\u70ba\u4e86\u4fdd\u8b77\u6578\u64da\uff0c\u5b9a\u671f\u5099\u4efd\u548c\u8a2d\u7f6e\u9069\u7576\u7684\u6b0a\u9650\u662f\u81f3\u95dc\u91cd\u8981\u7684\u3002\u5982\u679c\u60a8\u9700\u8981\u66f4\u591a\u6709\u95dc <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u548c\u6578\u64da\u7ba1\u7406\u7684\u8cc7\u8a0a\uff0c\u8acb\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5b78\u7fd2\u5982\u4f55\u67e5\u627e\u5df2\u88ab\u522a\u9664\u7684\u6578\u64da\u5eab\uff0c\u638c\u63e1\u6709\u6548\u7684\u67e5\u8a62\u6280\u5de7\u548c\u6062\u5fa9\u65b9\u6cd5\uff0c\u4fdd\u969c\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-172971","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/172971","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=172971"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/172971\/revisions"}],"predecessor-version":[{"id":172972,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/172971\/revisions\/172972"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=172971"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=172971"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=172971"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}