{"id":185636,"date":"2024-11-10T23:14:18","date_gmt":"2024-11-10T15:14:18","guid":{"rendered":"https:\/\/server.hk\/cnblog\/185636\/"},"modified":"2024-11-10T23:14:18","modified_gmt":"2024-11-10T15:14:18","slug":"%e6%89%8b%e6%8a%8a%e6%89%8b%e6%95%99%e4%bd%a0%e5%a4%a7%e5%9e%8b%e8%a1%a8%e6%a0%bc%e7%9a%84%e6%9b%b4%e6%96%b0%e3%80%81%e5%88%aa%e9%99%a4%e5%92%8c%e5%84%aa%e5%8c%96","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/185636\/","title":{"rendered":"\u624b\u628a\u624b\u6559\u4f60\u5927\u578b\u8868\u683c\u7684\u66f4\u65b0\u3001\u522a\u9664\u548c\u512a\u5316"},"content":{"rendered":"<h1 id=\"%e6%89%8b%e6%8a%8a%e6%89%8b%e6%95%99%e4%bd%a0%e5%a4%a7%e5%9e%8b%e8%a1%a8%e6%a0%bc%e7%9a%84%e6%9b%b4%e6%96%b0%e3%80%81%e5%88%aa%e9%99%a4%e5%92%8c%e5%84%aa%e5%8c%96-UiulOzuPWy\">\u624b\u628a\u624b\u6559\u4f60\u5927\u578b\u8868\u683c\u7684\u66f4\u65b0\u3001\u522a\u9664\u548c\u512a\u5316<\/h1>\n<p>\u5728\u6578\u64da\u7ba1\u7406\u4e2d\uff0c\u5927\u578b\u8868\u683c\u7684\u8655\u7406\u662f\u4e00\u9805\u91cd\u8981\u7684\u4efb\u52d9\u3002\u7121\u8ad6\u662f\u5728\u6578\u64da\u5eab\u4e2d\u9084\u662f\u96fb\u5b50\u8868\u683c\u4e2d\uff0c\u66f4\u65b0\u3001\u522a\u9664\u548c\u512a\u5316\u5927\u578b\u8868\u683c\u90fd\u9700\u8981\u8b39\u614e\u7684\u8a08\u5283\u548c\u57f7\u884c\u3002\u672c\u6587\u5c07\u8a73\u7d30\u4ecb\u7d39\u5982\u4f55\u6709\u6548\u5730\u9032\u884c\u9019\u4e9b\u64cd\u4f5c\uff0c\u5e6b\u52a9\u4f60\u63d0\u9ad8\u6578\u64da\u8655\u7406\u7684\u6548\u7387\u3002<\/p>\n<h2 id=\"%e4%b8%80%e3%80%81%e5%a4%a7%e5%9e%8b%e8%a1%a8%e6%a0%bc%e7%9a%84%e6%9b%b4%e6%96%b0-UiulOzuPWy\">\u4e00\u3001\u5927\u578b\u8868\u683c\u7684\u66f4\u65b0<\/h2>\n<p>\u66f4\u65b0\u5927\u578b\u8868\u683c\u7684\u6578\u64da\u901a\u5e38\u6d89\u53ca\u5230\u591a\u500b\u6b65\u9a5f\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u898b\u7684\u65b9\u6cd5\u548c\u6280\u5de7\uff1a<\/p>\n<ul>\n<li><strong>\u4f7f\u7528SQL\u8a9e\u53e5\u66f4\u65b0\u6578\u64da\uff1a<\/strong>\u5982\u679c\u4f60\u7684\u6578\u64da\u5b58\u5132\u5728\u6578\u64da\u5eab\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528SQL\u8a9e\u53e5\u9032\u884c\u66f4\u65b0\u3002\u4f8b\u5982\uff0c\u5047\u8a2d\u4f60\u6709\u4e00\u500b\u540d\u70ba\u201cemployees\u201d\u7684\u8868\u683c\uff0c\u60f3\u8981\u66f4\u65b0\u67d0\u4f4d\u54e1\u5de5\u7684\u85aa\u6c34\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u8a9e\u53e5\uff1a<\/li>\n<\/ul>\n<pre><code>UPDATE employees SET salary = 60000 WHERE employee_id = 123;<\/code><\/pre>\n<ul>\n<li><strong>\u6279\u91cf\u66f4\u65b0\uff1a<\/strong>\u5c0d\u65bc\u5927\u578b\u8868\u683c\uff0c\u6279\u91cf\u66f4\u65b0\u53ef\u4ee5\u986f\u8457\u63d0\u9ad8\u6548\u7387\u3002\u53ef\u4ee5\u4f7f\u7528CSV\u6587\u4ef6\u5c0e\u5165\u6578\u64da\uff0c\u7136\u5f8c\u4f7f\u7528\u6578\u64da\u5eab\u7684\u5c0e\u5165\u529f\u80fd\u9032\u884c\u6279\u91cf\u66f4\u65b0\u3002<\/li>\n<li><strong>\u4f7f\u7528\u8173\u672c\u81ea\u52d5\u5316\u66f4\u65b0\uff1a<\/strong>\u5982\u679c\u9700\u8981\u5b9a\u671f\u66f4\u65b0\u6578\u64da\uff0c\u53ef\u4ee5\u8003\u616e\u7de8\u5beb\u8173\u672c\u81ea\u52d5\u5316\u9019\u4e00\u904e\u7a0b\u3002\u4f8b\u5982\uff0c\u4f7f\u7528Python\u7684Pandas\u5eab\u4f86\u8b80\u53d6\u548c\u66f4\u65b0\u6578\u64da\uff1a<\/li>\n<\/ul>\n<pre><code>import pandas as pd\n\n# \u8b80\u53d6\u6578\u64da\ndf = pd.read_csv('employees.csv')\n\n# \u66f4\u65b0\u85aa\u6c34\ndf.loc[df['employee_id'] == 123, 'salary'] = 60000\n\n# \u4fdd\u5b58\u66f4\u65b0\u5f8c\u7684\u6578\u64da\ndf.to_csv('employees_updated.csv', index=False)<\/code><\/pre>\n<h2 id=\"%e4%ba%8c%e3%80%81%e5%a4%a7%e5%9e%8b%e8%a1%a8%e6%a0%bc%e7%9a%84%e5%88%aa%e9%99%a4-UiulOzuPWy\">\u4e8c\u3001\u5927\u578b\u8868\u683c\u7684\u522a\u9664<\/h2>\n<p>\u522a\u9664\u5927\u578b\u8868\u683c\u4e2d\u7684\u6578\u64da\u540c\u6a23\u9700\u8981\u8b39\u614e\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5efa\u8b70\uff1a<\/p>\n<ul>\n<li><strong>\u4f7f\u7528SQL\u8a9e\u53e5\u522a\u9664\u6578\u64da\uff1a<\/strong>\u53ef\u4ee5\u4f7f\u7528DELETE\u8a9e\u53e5\u522a\u9664\u7279\u5b9a\u689d\u76ee\u3002\u4f8b\u5982\uff0c\u522a\u9664\u67d0\u4f4d\u54e1\u5de5\u7684\u8a18\u9304\uff1a<\/li>\n<\/ul>\n<pre><code>DELETE FROM employees WHERE employee_id = 123;<\/code><\/pre>\n<ul>\n<li><strong>\u689d\u4ef6\u522a\u9664\uff1a<\/strong>\u5728\u522a\u9664\u6578\u64da\u6642\uff0c\u52d9\u5fc5\u4f7f\u7528\u689d\u4ef6\uff0c\u4ee5\u907f\u514d\u610f\u5916\u522a\u9664\u6574\u500b\u8868\u683c\u7684\u6578\u64da\u3002<\/li>\n<li><strong>\u5099\u4efd\u6578\u64da\uff1a<\/strong>\u5728\u9032\u884c\u522a\u9664\u64cd\u4f5c\u4e4b\u524d\uff0c\u5efa\u8b70\u5148\u5099\u4efd\u6578\u64da\uff0c\u4ee5\u9632\u6b62\u6578\u64da\u4e1f\u5931\u3002<\/li>\n<\/ul>\n<h2 id=\"%e4%b8%89%e3%80%81%e5%a4%a7%e5%9e%8b%e8%a1%a8%e6%a0%bc%e7%9a%84%e5%84%aa%e5%8c%96-UiulOzuPWy\">\u4e09\u3001\u5927\u578b\u8868\u683c\u7684\u512a\u5316<\/h2>\n<p>\u512a\u5316\u5927\u578b\u8868\u683c\u53ef\u4ee5\u63d0\u9ad8\u6578\u64da\u8655\u7406\u7684\u6548\u7387\uff0c\u4ee5\u4e0b\u662f\u4e00\u4e9b\u512a\u5316\u7684\u6280\u5de7\uff1a<\/p>\n<ul>\n<li><strong>\u7d22\u5f15\uff1a<\/strong>\u70ba\u8868\u683c\u4e2d\u7684\u95dc\u9375\u5b57\u6bb5\u5275\u5efa\u7d22\u5f15\uff0c\u53ef\u4ee5\u986f\u8457\u63d0\u9ad8\u67e5\u8a62\u901f\u5ea6\u3002\u4f8b\u5982\uff0c\u5c0d\u201cemployee_id\u201d\u5b57\u6bb5\u5275\u5efa\u7d22\u5f15\uff1a<\/li>\n<\/ul>\n<pre><code>CREATE INDEX idx_employee_id ON employees(employee_id);<\/code><\/pre>\n<ul>\n<li><strong>\u6578\u64da\u6b63\u898f\u5316\uff1a<\/strong>\u901a\u904e\u5c07\u6578\u64da\u5206\u89e3\u70ba\u591a\u500b\u76f8\u95dc\u8868\u683c\uff0c\u53ef\u4ee5\u6e1b\u5c11\u5197\u9918\uff0c\u63d0\u9ad8\u6578\u64da\u7684\u4e00\u81f4\u6027\u3002<\/li>\n<li><strong>\u5b9a\u671f\u6e05\u7406\u6578\u64da\uff1a<\/strong>\u5b9a\u671f\u6aa2\u67e5\u548c\u6e05\u7406\u4e0d\u518d\u9700\u8981\u7684\u6578\u64da\uff0c\u53ef\u4ee5\u4fdd\u6301\u8868\u683c\u7684\u6574\u6f54\u548c\u9ad8\u6548\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-UiulOzuPWy\">\u7e3d\u7d50<\/h2>\n<p>\u5728\u8655\u7406\u5927\u578b\u8868\u683c\u6642\uff0c\u66f4\u65b0\u3001\u522a\u9664\u548c\u512a\u5316\u662f\u4e09\u500b\u95dc\u9375\u6b65\u9a5f\u3002\u901a\u904e\u4f7f\u7528\u5408\u9069\u7684\u5de5\u5177\u548c\u6280\u8853\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u7ba1\u7406\u6578\u64da\uff0c\u63d0\u9ad8\u5de5\u4f5c\u6548\u7387\u3002\u7121\u8ad6\u662f\u4f7f\u7528SQL\u8a9e\u53e5\u3001\u7de8\u5beb\u81ea\u52d5\u5316\u8173\u672c\uff0c\u9084\u662f\u9032\u884c\u6578\u64da\u6b63\u898f\u5316\uff0c\u9019\u4e9b\u65b9\u6cd5\u90fd\u80fd\u5e6b\u52a9\u4f60\u66f4\u597d\u5730\u8655\u7406\u5927\u578b\u8868\u683c\u7684\u6311\u6230\u3002<\/p>\n<p>\u5982\u679c\u4f60\u9700\u8981\u66f4\u9ad8\u6548\u7684\u6578\u64da\u7ba1\u7406\u89e3\u6c7a\u65b9\u6848\uff0c\u8003\u616e\u4f7f\u7528<a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a>\u6216<a href=\"https:\/\/server.hk\">\u4e91\u670d\u52a1\u5668<\/a>\uff0c\u9019\u4e9b\u670d\u52d9\u80fd\u5920\u63d0\u4f9b\u7a69\u5b9a\u7684\u6027\u80fd\u548c\u9748\u6d3b\u7684\u8cc7\u6e90\u914d\u7f6e\uff0c\u52a9\u4f60\u8f15\u9b06\u61c9\u5c0d\u5404\u7a2e\u6578\u64da\u8655\u7406\u9700\u6c42\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5b78\u7fd2\u5982\u4f55\u624b\u628a\u624b\u66f4\u65b0\u3001\u522a\u9664\u548c\u512a\u5316\u5927\u578b\u8868\u683c\uff0c\u63d0\u5347\u6578\u64da\u7ba1\u7406\u6548\u7387\uff0c\u8b93\u4f60\u7684\u5de5\u4f5c\u66f4\u8f15\u9b06\uff01<\/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-185636","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/185636","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=185636"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/185636\/revisions"}],"predecessor-version":[{"id":185637,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/185636\/revisions\/185637"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=185636"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=185636"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=185636"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}