{"id":174517,"date":"2024-11-07T22:32:26","date_gmt":"2024-11-07T14:32:26","guid":{"rendered":"https:\/\/server.hk\/cnblog\/174517\/"},"modified":"2024-11-07T22:32:27","modified_gmt":"2024-11-07T14:32:27","slug":"%e5%a6%82%e4%bd%95%e5%bf%ab%e9%80%9f%e6%9f%a5%e6%89%be%e9%87%8d%e8%a4%87%e6%95%b8%e6%93%9a%ef%bc%9f-%e6%80%8e%e9%ba%bc%e6%9f%a5%e4%b8%80%e5%88%97%e9%87%8d%e8%a4%87%e6%95%b8%e6%93%9a%e5%ba%ab","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/174517\/","title":{"rendered":"\u5982\u4f55\u5feb\u901f\u67e5\u627e\u91cd\u8907\u6578\u64da\uff1f (\u600e\u9ebc\u67e5\u4e00\u5217\u91cd\u8907\u6578\u64da\u5eab)"},"content":{"rendered":"<h1 id=\"%e5%a6%82%e4%bd%95%e5%bf%ab%e9%80%9f%e6%9f%a5%e6%89%be%e9%87%8d%e8%a4%87%e6%95%b8%e6%93%9a%ef%bc%9f-%e6%80%8e%e9%ba%bc%e6%9f%a5%e4%b8%80%e5%88%97%e9%87%8d%e8%a4%87%e6%95%b8%e6%93%9a%e5%ba%ab-SzbpeAQIEs\">\u5982\u4f55\u5feb\u901f\u67e5\u627e\u91cd\u8907\u6578\u64da\uff1f (\u600e\u9ebc\u67e5\u4e00\u5217\u91cd\u8907\u6578\u64da\u5eab)<\/h1>\n<p>\u5728\u6578\u64da\u7ba1\u7406\u4e2d\uff0c\u91cd\u8907\u6578\u64da\u662f\u4e00\u500b\u5e38\u898b\u7684\u554f\u984c\uff0c\u5c24\u5176\u662f\u5728\u5927\u578b\u6578\u64da\u5eab\u4e2d\u3002\u91cd\u8907\u6578\u64da\u4e0d\u50c5\u6703\u6d6a\u8cbb\u5b58\u5132\u7a7a\u9593\uff0c\u9084\u53ef\u80fd\u5c0e\u81f4\u6578\u64da\u5206\u6790\u7684\u932f\u8aa4\u3002\u56e0\u6b64\uff0c\u5feb\u901f\u67e5\u627e\u548c\u8655\u7406\u91cd\u8907\u6578\u64da\u662f\u6578\u64da\u7ba1\u7406\u7684\u91cd\u8981\u4efb\u52d9\u4e4b\u4e00\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5e7e\u7a2e\u6709\u6548\u7684\u65b9\u6cd5\u4f86\u67e5\u627e\u91cd\u8907\u6578\u64da\uff0c\u4e26\u63d0\u4f9b\u76f8\u61c9\u7684\u793a\u4f8b\u548c\u4ee3\u78bc\u7247\u6bb5\u3002<\/p>\n<h2 id=\"%e7%82%ba%e4%bb%80%e9%ba%bc%e9%9c%80%e8%a6%81%e6%9f%a5%e6%89%be%e9%87%8d%e8%a4%87%e6%95%b8%e6%93%9a%ef%bc%9f-SzbpeAQIEs\">\u70ba\u4ec0\u9ebc\u9700\u8981\u67e5\u627e\u91cd\u8907\u6578\u64da\uff1f<\/h2>\n<p>\u91cd\u8907\u6578\u64da\u53ef\u80fd\u6703\u5f71\u97ff\u6578\u64da\u7684\u5b8c\u6574\u6027\u548c\u6e96\u78ba\u6027\u3002\u4ee5\u4e0b\u662f\u67e5\u627e\u91cd\u8907\u6578\u64da\u7684\u4e00\u4e9b\u539f\u56e0\uff1a<\/p>\n<ul>\n<li><strong>\u6578\u64da\u6e96\u78ba\u6027\uff1a<\/strong>\u91cd\u8907\u6578\u64da\u53ef\u80fd\u5c0e\u81f4\u932f\u8aa4\u7684\u5206\u6790\u7d50\u679c\uff0c\u5f71\u97ff\u6c7a\u7b56\u3002<\/li>\n<li><strong>\u5b58\u5132\u6548\u7387\uff1a<\/strong>\u91cd\u8907\u6578\u64da\u6703\u4f54\u7528\u984d\u5916\u7684\u5b58\u5132\u7a7a\u9593\uff0c\u589e\u52a0\u7ba1\u7406\u6210\u672c\u3002<\/li>\n<li><strong>\u7528\u6236\u9ad4\u9a57\uff1a<\/strong>\u5728\u5ba2\u6236\u8cc7\u6599\u4e2d\u51fa\u73fe\u91cd\u8907\u8a18\u9304\u53ef\u80fd\u6703\u5f71\u97ff\u7528\u6236\u7684\u9ad4\u9a57\u548c\u4fe1\u4efb\u5ea6\u3002<\/li>\n<\/ul>\n<h2 id=\"%e6%9f%a5%e6%89%be%e9%87%8d%e8%a4%87%e6%95%b8%e6%93%9a%e7%9a%84%e6%96%b9%e6%b3%95-SzbpeAQIEs\">\u67e5\u627e\u91cd\u8907\u6578\u64da\u7684\u65b9\u6cd5<\/h2>\n<h3 id=\"1-%e4%bd%bf%e7%94%a8-sql-%e6%9f%a5%e8%a9%a2-SzbpeAQIEs\">1. \u4f7f\u7528 SQL \u67e5\u8a62<\/h3>\n<p>\u5728\u95dc\u4fc2\u578b\u6578\u64da\u5eab\u4e2d\uff0c\u4f7f\u7528 SQL \u67e5\u8a62\u662f\u4e00\u7a2e\u5e38\u898b\u7684\u65b9\u6cd5\u4f86\u67e5\u627e\u91cd\u8907\u6578\u64da\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u793a\u4f8b\uff0c\u5047\u8a2d\u6211\u5011\u6709\u4e00\u500b\u540d\u70ba <code>customers<\/code> \u7684\u8868\uff0c\u4e26\u5e0c\u671b\u67e5\u627e\u91cd\u8907\u7684\u96fb\u5b50\u90f5\u4ef6\u5730\u5740\uff1a<\/p>\n<pre><code>SELECT email, COUNT(*) as count\nFROM customers\nGROUP BY email\nHAVING COUNT(*) &gt; 1;<\/code><\/pre>\n<p>\u9019\u6bb5 SQL \u67e5\u8a62\u5c07\u8fd4\u56de\u6240\u6709\u91cd\u8907\u7684\u96fb\u5b50\u90f5\u4ef6\u5730\u5740\u53ca\u5176\u51fa\u73fe\u7684\u6b21\u6578\u3002<\/p>\n<h3 id=\"2-%e4%bd%bf%e7%94%a8-excel-SzbpeAQIEs\">2. \u4f7f\u7528 Excel<\/h3>\n<p>\u5982\u679c\u6578\u64da\u91cf\u4e0d\u5927\uff0cExcel \u4e5f\u662f\u4e00\u500b\u65b9\u4fbf\u7684\u5de5\u5177\u4f86\u67e5\u627e\u91cd\u8907\u6578\u64da\u3002\u4ee5\u4e0b\u662f\u4f7f\u7528 Excel \u67e5\u627e\u91cd\u8907\u6578\u64da\u7684\u6b65\u9a5f\uff1a<\/p>\n<ol>\n<li>\u9078\u64c7\u8981\u6aa2\u67e5\u7684\u6578\u64da\u7bc4\u570d\u3002<\/li>\n<li>\u5728\u529f\u80fd\u5340\u4e2d\uff0c\u9ede\u64ca\u201c\u6578\u64da\u201d\u9078\u9805\u5361\u3002<\/li>\n<li>\u9078\u64c7\u201c\u689d\u4ef6\u683c\u5f0f\u201d &gt; \u201c\u7a81\u51fa\u986f\u793a\u55ae\u5143\u683c\u898f\u5247\u201d &gt; \u201c\u91cd\u8907\u503c\u201d\u3002<\/li>\n<li>\u9078\u64c7\u683c\u5f0f\uff0c\u7136\u5f8c\u9ede\u64ca\u201c\u78ba\u5b9a\u201d\u3002<\/li>\n<\/ol>\n<p>\u9019\u6a23\uff0c\u6240\u6709\u91cd\u8907\u7684\u6578\u64da\u5c07\u6703\u88ab\u9ad8\u4eae\u986f\u793a\uff0c\u65b9\u4fbf\u7528\u6236\u9032\u884c\u5f8c\u7e8c\u8655\u7406\u3002<\/p>\n<h3 id=\"3-%e4%bd%bf%e7%94%a8-python-SzbpeAQIEs\">3. \u4f7f\u7528 Python<\/h3>\n<p>\u5c0d\u65bc\u9700\u8981\u8655\u7406\u5927\u91cf\u6578\u64da\u7684\u60c5\u6cc1\uff0c\u4f7f\u7528 Python \u7684 <code>pandas<\/code> \u5eab\u662f\u4e00\u500b\u9ad8\u6548\u7684\u9078\u64c7\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u793a\u4f8b\u4ee3\u78bc\uff1a<\/p>\n<pre><code>import pandas as pd\n\n# \u8b80\u53d6\u6578\u64da\ndata = pd.read_csv('customers.csv')\n\n# \u67e5\u627e\u91cd\u8907\u7684\u96fb\u5b50\u90f5\u4ef6\nduplicates = data[data.duplicated(['email'], keep=False)]\n\nprint(duplicates)<\/code><\/pre>\n<p>\u9019\u6bb5\u4ee3\u78bc\u5c07\u8b80\u53d6\u4e00\u500b CSV \u6587\u4ef6\uff0c\u4e26\u67e5\u627e\u6240\u6709\u91cd\u8907\u7684\u96fb\u5b50\u90f5\u4ef6\u5730\u5740\uff0c\u7136\u5f8c\u5c07\u5176\u6253\u5370\u51fa\u4f86\u3002<\/p>\n<h2 id=\"%e5%a6%82%e4%bd%95%e8%99%95%e7%90%86%e9%87%8d%e8%a4%87%e6%95%b8%e6%93%9a-SzbpeAQIEs\">\u5982\u4f55\u8655\u7406\u91cd\u8907\u6578\u64da<\/h2>\n<p>\u67e5\u627e\u91cd\u8907\u6578\u64da\u5f8c\uff0c\u63a5\u4e0b\u4f86\u7684\u6b65\u9a5f\u662f\u5982\u4f55\u8655\u7406\u9019\u4e9b\u91cd\u8907\u9805\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u898b\u7684\u65b9\u6cd5\uff1a<\/p>\n<ul>\n<li><strong>\u522a\u9664\u91cd\u8907\u9805\uff1a<\/strong>\u6839\u64da\u696d\u52d9\u9700\u6c42\uff0c\u9078\u64c7\u522a\u9664\u591a\u9918\u7684\u91cd\u8907\u9805\u3002<\/li>\n<li><strong>\u5408\u4f75\u6578\u64da\uff1a<\/strong>\u5982\u679c\u91cd\u8907\u9805\u4e2d\u6709\u4e0d\u540c\u7684\u4fe1\u606f\uff0c\u53ef\u4ee5\u8003\u616e\u5408\u4f75\u9019\u4e9b\u6578\u64da\u3002<\/li>\n<li><strong>\u6a19\u8a18\u91cd\u8907\u9805\uff1a<\/strong>\u5728\u6578\u64da\u4e2d\u6a19\u8a18\u91cd\u8907\u9805\uff0c\u4ee5\u4fbf\u5f8c\u7e8c\u9032\u884c\u5be9\u6838\u6216\u8655\u7406\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-SzbpeAQIEs\">\u7e3d\u7d50<\/h2>\n<p>\u67e5\u627e\u548c\u8655\u7406\u91cd\u8907\u6578\u64da\u662f\u6578\u64da\u7ba1\u7406\u4e2d\u7684\u4e00\u500b\u91cd\u8981\u4efb\u52d9\u3002\u7121\u8ad6\u662f\u4f7f\u7528 SQL \u67e5\u8a62\u3001Excel \u9084\u662f Python\uff0c\u9078\u64c7\u5408\u9069\u7684\u65b9\u6cd5\u53ef\u4ee5\u6709\u6548\u63d0\u9ad8\u6578\u64da\u7684\u6e96\u78ba\u6027\u548c\u5b8c\u6574\u6027\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u6548\u6578\u64da\u8655\u7406\u7684\u7528\u6236\uff0c\u9078\u64c7\u5408\u9069\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u6216 <a href=\"https:\/\/server.hk\">\u9999\u6e2f\u4f3a\u670d\u5668<\/a> \u4f86\u904b\u884c\u6578\u64da\u5206\u6790\u5de5\u5177\u4e5f\u662f\u4e00\u500b\u4e0d\u932f\u7684\u9078\u64c7\u3002\u5e0c\u671b\u672c\u6587\u80fd\u5e6b\u52a9\u60a8\u66f4\u597d\u5730\u7406\u89e3\u5982\u4f55\u5feb\u901f\u67e5\u627e\u548c\u8655\u7406\u91cd\u8907\u6578\u64da\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5b78\u7fd2\u5982\u4f55\u5feb\u901f\u67e5\u627e\u91cd\u8907\u6578\u64da\uff0c\u638c\u63e1\u6709\u6548\u7684\u65b9\u6cd5\u548c\u5de5\u5177\uff0c\u8f15\u9b06\u7ba1\u7406\u6578\u64da\u5eab\u4e2d\u7684\u91cd\u8907\u9805\u76ee\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-174517","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/174517","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=174517"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/174517\/revisions"}],"predecessor-version":[{"id":174518,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/174517\/revisions\/174518"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=174517"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=174517"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=174517"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}