{"id":196494,"date":"2024-11-14T00:04:20","date_gmt":"2024-11-13T16:04:20","guid":{"rendered":"https:\/\/server.hk\/cnblog\/196494\/"},"modified":"2024-11-14T00:04:21","modified_gmt":"2024-11-13T16:04:21","slug":"%e4%b8%ad%e7%9a%84%e6%95%b8%e6%93%9a-%e8%a1%a8%e6%a0%bc%e4%b8%ad%e5%a6%82%e4%bd%95%e5%88%aa%e9%99%a4%e4%b8%8d%e9%9c%80%e8%a6%81%e6%95%b8%e6%93%9a%e5%ba%ab","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/196494\/","title":{"rendered":"\u4e2d\u7684\u6578\u64da (\u8868\u683c\u4e2d\u5982\u4f55\u522a\u9664\u4e0d\u9700\u8981\u6578\u64da\u5eab)"},"content":{"rendered":"<h1 id=\"%e4%b8%ad%e7%9a%84%e6%95%b8%e6%93%9a-%e8%a1%a8%e6%a0%bc%e4%b8%ad%e5%a6%82%e4%bd%95%e5%88%aa%e9%99%a4%e4%b8%8d%e9%9c%80%e8%a6%81%e6%95%b8%e6%93%9a%e5%ba%ab-cqGlEiAaUB\">\u4e2d\u7684\u6578\u64da (\u8868\u683c\u4e2d\u5982\u4f55\u522a\u9664\u4e0d\u9700\u8981\u6578\u64da\u5eab)<\/h1>\n<p>\u5728\u6578\u64da\u7ba1\u7406\u7684\u904e\u7a0b\u4e2d\uff0c\u7d93\u5e38\u9700\u8981\u5c0d\u6578\u64da\u5eab\u4e2d\u7684\u6578\u64da\u9032\u884c\u6e05\u7406\uff0c\u4ee5\u78ba\u4fdd\u6578\u64da\u7684\u6e96\u78ba\u6027\u548c\u6709\u6548\u6027\u3002\u7279\u5225\u662f\u5728\u8655\u7406\u5927\u578b\u6578\u64da\u96c6\u6642\uff0c\u522a\u9664\u4e0d\u9700\u8981\u7684\u6578\u64da\u53ef\u4ee5\u986f\u8457\u63d0\u9ad8\u67e5\u8a62\u6027\u80fd\u548c\u6578\u64da\u8655\u7406\u6548\u7387\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5982\u4f55\u5728\u6578\u64da\u5eab\u7684\u8868\u683c\u4e2d\u522a\u9664\u4e0d\u9700\u8981\u7684\u6578\u64da\uff0c\u4e26\u63d0\u4f9b\u4e00\u4e9b\u5be6\u7528\u7684\u793a\u4f8b\u548c\u5efa\u8b70\u3002<\/p>\n<h2 id=\"%e7%82%ba%e4%bb%80%e9%ba%bc%e9%9c%80%e8%a6%81%e5%88%aa%e9%99%a4%e4%b8%8d%e9%9c%80%e8%a6%81%e7%9a%84%e6%95%b8%e6%93%9a-cqGlEiAaUB\">\u70ba\u4ec0\u9ebc\u9700\u8981\u522a\u9664\u4e0d\u9700\u8981\u7684\u6578\u64da<\/h2>\n<p>\u6578\u64da\u5eab\u4e2d\u7684\u4e0d\u5fc5\u8981\u6578\u64da\u53ef\u80fd\u6703\u5c0e\u81f4\u591a\u7a2e\u554f\u984c\uff0c\u5305\u62ec\uff1a<\/p>\n<ul>\n<li><strong>\u6027\u80fd\u4e0b\u964d\uff1a<\/strong>\u96a8\u8457\u6578\u64da\u91cf\u7684\u589e\u52a0\uff0c\u67e5\u8a62\u548c\u64cd\u4f5c\u7684\u901f\u5ea6\u53ef\u80fd\u6703\u8b8a\u6162\u3002<\/li>\n<li><strong>\u5b58\u5132\u6210\u672c\u589e\u52a0\uff1a<\/strong>\u5132\u5b58\u4e0d\u5fc5\u8981\u7684\u6578\u64da\u6703\u6d6a\u8cbb\u5b58\u5132\u7a7a\u9593\uff0c\u589e\u52a0\u6210\u672c\u3002<\/li>\n<li><strong>\u6578\u64da\u8cea\u91cf\u4e0b\u964d\uff1a<\/strong>\u4e0d\u5fc5\u8981\u7684\u6578\u64da\u53ef\u80fd\u6703\u5e72\u64fe\u6578\u64da\u5206\u6790\uff0c\u5c0e\u81f4\u932f\u8aa4\u7684\u7d50\u8ad6\u3002<\/li>\n<\/ul>\n<h2 id=\"%e5%a6%82%e4%bd%95%e5%88%aa%e9%99%a4%e4%b8%8d%e9%9c%80%e8%a6%81%e7%9a%84%e6%95%b8%e6%93%9a-cqGlEiAaUB\">\u5982\u4f55\u522a\u9664\u4e0d\u9700\u8981\u7684\u6578\u64da<\/h2>\n<p>\u522a\u9664\u4e0d\u9700\u8981\u7684\u6578\u64da\u901a\u5e38\u53ef\u4ee5\u901a\u904e SQL \u8a9e\u53e5\u4f86\u5be6\u73fe\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u898b\u7684\u522a\u9664\u64cd\u4f5c\u793a\u4f8b\uff1a<\/p>\n<h3 id=\"1-%e4%bd%bf%e7%94%a8-delete-%e8%aa%9e%e5%8f%a5-cqGlEiAaUB\">1. \u4f7f\u7528 DELETE \u8a9e\u53e5<\/h3>\n<p>\u6700\u57fa\u672c\u7684\u522a\u9664\u64cd\u4f5c\u662f\u4f7f\u7528 DELETE \u8a9e\u53e5\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u793a\u4f8b\uff0c\u5047\u8a2d\u6211\u5011\u6709\u4e00\u500b\u540d\u70ba <code>users<\/code> \u7684\u8868\u683c\uff0c\u6211\u5011\u60f3\u522a\u9664\u6240\u6709\u5e74\u9f61\u5c0f\u65bc 18 \u6b72\u7684\u7528\u6236\uff1a<\/p>\n<pre><code>DELETE FROM users WHERE age &lt; 18;<\/code><\/pre>\n<p>\u9019\u689d\u8a9e\u53e5\u5c07\u522a\u9664\u6240\u6709\u5e74\u9f61\u5c0f\u65bc 18 \u6b72\u7684\u8a18\u9304\u3002\u9700\u8981\u6ce8\u610f\u7684\u662f\uff0c\u57f7\u884c\u6b64\u64cd\u4f5c\u5f8c\uff0c\u9019\u4e9b\u6578\u64da\u5c07\u7121\u6cd5\u6062\u5fa9\uff0c\u56e0\u6b64\u5728\u57f7\u884c\u522a\u9664\u64cd\u4f5c\u4e4b\u524d\uff0c\u5efa\u8b70\u5148\u5099\u4efd\u6578\u64da\u3002<\/p>\n<h3 id=\"2-%e4%bd%bf%e7%94%a8-truncate-%e8%aa%9e%e5%8f%a5-cqGlEiAaUB\">2. \u4f7f\u7528 TRUNCATE \u8a9e\u53e5<\/h3>\n<p>\u5982\u679c\u9700\u8981\u522a\u9664\u6574\u500b\u8868\u683c\u4e2d\u7684\u6240\u6709\u6578\u64da\uff0c\u53ef\u4ee5\u4f7f\u7528 TRUNCATE \u8a9e\u53e5\u3002\u9019\u7a2e\u65b9\u6cd5\u6bd4 DELETE \u66f4\u5feb\uff0c\u56e0\u70ba\u5b83\u4e0d\u6703\u9010\u884c\u522a\u9664\u6578\u64da\uff0c\u800c\u662f\u76f4\u63a5\u6e05\u7a7a\u6574\u500b\u8868\u683c\uff1a<\/p>\n<pre><code>TRUNCATE TABLE users;<\/code><\/pre>\n<p>\u9019\u689d\u8a9e\u53e5\u5c07\u522a\u9664 <code>users<\/code> \u8868\u683c\u4e2d\u7684\u6240\u6709\u6578\u64da\uff0c\u4f46\u4fdd\u7559\u8868\u683c\u7d50\u69cb\u3002<\/p>\n<h3 id=\"3-%e4%bd%bf%e7%94%a8%e6%a2%9d%e4%bb%b6%e5%88%aa%e9%99%a4-cqGlEiAaUB\">3. \u4f7f\u7528\u689d\u4ef6\u522a\u9664<\/h3>\n<p>\u5728\u67d0\u4e9b\u60c5\u6cc1\u4e0b\uff0c\u60a8\u53ef\u80fd\u53ea\u60f3\u522a\u9664\u7b26\u5408\u7279\u5b9a\u689d\u4ef6\u7684\u6578\u64da\u3002\u4f8b\u5982\uff0c\u5047\u8a2d\u6211\u5011\u60f3\u522a\u9664\u6240\u6709\u5df2\u7d93\u8a3b\u92b7\u7684\u7528\u6236\uff1a<\/p>\n<pre><code>DELETE FROM users WHERE status = 'inactive';<\/code><\/pre>\n<p>\u9019\u689d\u8a9e\u53e5\u5c07\u522a\u9664\u6240\u6709\u72c0\u614b\u70ba &#8216;inactive&#8217; \u7684\u7528\u6236\u8a18\u9304\u3002<\/p>\n<h2 id=\"%e6%b3%a8%e6%84%8f%e4%ba%8b%e9%a0%85-cqGlEiAaUB\">\u6ce8\u610f\u4e8b\u9805<\/h2>\n<p>\u5728\u522a\u9664\u6578\u64da\u6642\uff0c\u61c9\u6ce8\u610f\u4ee5\u4e0b\u5e7e\u9ede\uff1a<\/p>\n<ul>\n<li><strong>\u5099\u4efd\u6578\u64da\uff1a<\/strong>\u5728\u9032\u884c\u4efb\u4f55\u522a\u9664\u64cd\u4f5c\u4e4b\u524d\uff0c\u52d9\u5fc5\u5099\u4efd\u6578\u64da\uff0c\u4ee5\u9632\u6b62\u610f\u5916\u4e1f\u5931\u91cd\u8981\u4fe1\u606f\u3002<\/li>\n<li><strong>\u4f7f\u7528\u4e8b\u52d9\uff1a<\/strong>\u5728\u57f7\u884c\u522a\u9664\u64cd\u4f5c\u6642\uff0c\u5efa\u8b70\u4f7f\u7528\u4e8b\u52d9\u4f86\u78ba\u4fdd\u6578\u64da\u7684\u4e00\u81f4\u6027\u548c\u5b8c\u6574\u6027\u3002<\/li>\n<li><strong>\u6e2c\u8a66\u522a\u9664\u8a9e\u53e5\uff1a<\/strong>\u5728\u751f\u7522\u74b0\u5883\u4e2d\u57f7\u884c\u522a\u9664\u64cd\u4f5c\u4e4b\u524d\uff0c\u61c9\u5728\u6e2c\u8a66\u74b0\u5883\u4e2d\u9a57\u8b49\u522a\u9664\u8a9e\u53e5\u7684\u6b63\u78ba\u6027\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-cqGlEiAaUB\">\u7e3d\u7d50<\/h2>\n<p>\u522a\u9664\u4e0d\u9700\u8981\u7684\u6578\u64da\u662f\u6578\u64da\u5eab\u7ba1\u7406\u4e2d\u7684\u4e00\u500b\u91cd\u8981\u6b65\u9a5f\uff0c\u53ef\u4ee5\u63d0\u9ad8\u6027\u80fd\u548c\u6578\u64da\u8cea\u91cf\u3002\u901a\u904e\u4f7f\u7528\u9069\u7576\u7684 SQL \u8a9e\u53e5\uff0c\u5982 DELETE \u548c TRUNCATE\uff0c\u60a8\u53ef\u4ee5\u6709\u6548\u5730\u6e05\u7406\u6578\u64da\u5eab\u4e2d\u7684\u4e0d\u5fc5\u8981\u6578\u64da\u3002\u5728\u9032\u884c\u522a\u9664\u64cd\u4f5c\u6642\uff0c\u52d9\u5fc5\u6ce8\u610f\u5099\u4efd\u548c\u6578\u64da\u4e00\u81f4\u6027\uff0c\u4ee5\u907f\u514d\u4e0d\u5fc5\u8981\u7684\u640d\u5931\u3002<\/p>\n<p>\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u9ad8\u6548\u7684 <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u89e3\u6c7a\u65b9\u6848\u4f86\u7ba1\u7406\u60a8\u7684\u6578\u64da\u5eab\uff0cServer.HK \u63d0\u4f9b\u591a\u7a2e\u9078\u64c7\uff0c\u5e6b\u52a9\u60a8\u8f15\u9b06\u7ba1\u7406\u548c\u512a\u5316\u60a8\u7684\u6578\u64da\u74b0\u5883\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5b78\u7fd2\u5982\u4f55\u5728\u8868\u683c\u4e2d\u522a\u9664\u4e0d\u9700\u8981\u7684\u6578\u64da\uff0c\u512a\u5316\u6578\u64da\u5eab\u7ba1\u7406\uff0c\u63d0\u9ad8\u6578\u64da\u6e96\u78ba\u6027\u8207\u6548\u7387\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-196494","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/196494","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=196494"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/196494\/revisions"}],"predecessor-version":[{"id":196495,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/196494\/revisions\/196495"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=196494"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=196494"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=196494"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}