{"id":163873,"date":"2024-11-05T03:08:25","date_gmt":"2024-11-04T19:08:25","guid":{"rendered":"https:\/\/server.hk\/cnblog\/163873\/"},"modified":"2024-11-05T03:08:26","modified_gmt":"2024-11-04T19:08:26","slug":"%e8%a7%a3%e6%b1%ba%e6%95%b8%e6%93%9a%e5%ba%ab%e5%ad%97%e6%ae%b5%e5%80%bc%e9%81%8e%e9%95%b7%e5%95%8f%e9%a1%8c-%e6%95%b8%e6%93%9a%e5%ba%ab%e5%ad%97%e6%ae%b5%e5%80%bc%e9%81%8e%e9%95%b7%e5%a6%82%e4%bd%95","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/163873\/","title":{"rendered":"\u89e3\u6c7a\u6578\u64da\u5eab\u5b57\u6bb5\u503c\u904e\u9577\u554f\u984c (\u6578\u64da\u5eab\u5b57\u6bb5\u503c\u904e\u9577\u5982\u4f55\u89e3\u6c7a)"},"content":{"rendered":"<h1 id=\"%e8%a7%a3%e6%b1%ba%e6%95%b8%e6%93%9a%e5%ba%ab%e5%ad%97%e6%ae%b5%e5%80%bc%e9%81%8e%e9%95%b7%e5%95%8f%e9%a1%8c-wqGmfSvKDp\">\u89e3\u6c7a\u6578\u64da\u5eab\u5b57\u6bb5\u503c\u904e\u9577\u554f\u984c<\/h1>\n<p>\u5728\u6578\u64da\u5eab\u8a2d\u8a08\u548c\u7ba1\u7406\u4e2d\uff0c\u5b57\u6bb5\u503c\u904e\u9577\u662f\u4e00\u500b\u5e38\u898b\u7684\u554f\u984c\u3002\u9019\u4e0d\u50c5\u6703\u5f71\u97ff\u6578\u64da\u7684\u5b58\u5132\u6548\u7387\uff0c\u9084\u53ef\u80fd\u5c0e\u81f4\u61c9\u7528\u7a0b\u5e8f\u7684\u6027\u80fd\u4e0b\u964d\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u6578\u64da\u5eab\u5b57\u6bb5\u503c\u904e\u9577\u7684\u539f\u56e0\u53ca\u5176\u89e3\u6c7a\u65b9\u6848\uff0c\u5e6b\u52a9\u958b\u767c\u8005\u548c\u6578\u64da\u5eab\u7ba1\u7406\u54e1\u6709\u6548\u5730\u8655\u7406\u9019\u4e00\u554f\u984c\u3002<\/p>\n<h2 id=\"%e5%ad%97%e6%ae%b5%e5%80%bc%e9%81%8e%e9%95%b7%e7%9a%84%e5%8e%9f%e5%9b%a0-wqGmfSvKDp\">\u5b57\u6bb5\u503c\u904e\u9577\u7684\u539f\u56e0<\/h2>\n<p>\u5b57\u6bb5\u503c\u904e\u9577\u7684\u554f\u984c\u901a\u5e38\u6e90\u65bc\u4ee5\u4e0b\u5e7e\u500b\u65b9\u9762\uff1a<\/p>\n<ul>\n<li><strong>\u6578\u64da\u985e\u578b\u9078\u64c7\u4e0d\u7576\uff1a<\/strong>\u5728\u8a2d\u8a08\u6578\u64da\u5eab\u6642\uff0c\u9078\u64c7\u4e0d\u5408\u9069\u7684\u6578\u64da\u985e\u578b\u53ef\u80fd\u5c0e\u81f4\u5b57\u6bb5\u503c\u904e\u9577\u3002\u4f8b\u5982\uff0c\u4f7f\u7528VARCHAR(255)\u4f86\u5b58\u5132\u96fb\u5b50\u90f5\u4ef6\u5730\u5740\uff0c\u5be6\u969b\u4e0a\u53ea\u9700VARCHAR(100)\u5373\u53ef\u3002<\/li>\n<li><strong>\u7528\u6236\u8f38\u5165\u4e0d\u53d7\u9650\u5236\uff1a<\/strong>\u5982\u679c\u61c9\u7528\u7a0b\u5e8f\u672a\u5c0d\u7528\u6236\u8f38\u5165\u9032\u884c\u6709\u6548\u7684\u9a57\u8b49\uff0c\u5247\u7528\u6236\u53ef\u80fd\u6703\u8f38\u5165\u8d85\u904e\u9810\u671f\u9577\u5ea6\u7684\u6578\u64da\u3002<\/li>\n<li><strong>\u6578\u64da\u5197\u9918\uff1a<\/strong>\u5728\u67d0\u4e9b\u60c5\u6cc1\u4e0b\uff0c\u6578\u64da\u5eab\u4e2d\u53ef\u80fd\u5b58\u5728\u5197\u9918\u6578\u64da\uff0c\u5c0e\u81f4\u5b57\u6bb5\u503c\u904e\u9577\u3002\u4f8b\u5982\uff0c\u5c07\u76f8\u540c\u7684\u6578\u64da\u591a\u6b21\u5b58\u5132\u5728\u4e0d\u540c\u7684\u5b57\u6bb5\u4e2d\u3002<\/li>\n<\/ul>\n<h2 id=\"%e8%a7%a3%e6%b1%ba%e6%96%b9%e6%a1%88-wqGmfSvKDp\">\u89e3\u6c7a\u65b9\u6848<\/h2>\n<p>\u70ba\u4e86\u89e3\u6c7a\u6578\u64da\u5eab\u5b57\u6bb5\u503c\u904e\u9577\u7684\u554f\u984c\uff0c\u53ef\u4ee5\u63a1\u53d6\u4ee5\u4e0b\u5e7e\u7a2e\u65b9\u6cd5\uff1a<\/p>\n<h3 id=\"1-%e8%aa%bf%e6%95%b4%e6%95%b8%e6%93%9a%e9%a1%9e%e5%9e%8b-wqGmfSvKDp\">1. \u8abf\u6574\u6578\u64da\u985e\u578b<\/h3>\n<p>\u9996\u5148\uff0c\u6aa2\u67e5\u6578\u64da\u5eab\u4e2d\u6bcf\u500b\u5b57\u6bb5\u7684\u6578\u64da\u985e\u578b\u3002\u6839\u64da\u5be6\u969b\u9700\u6c42\u8abf\u6574\u5b57\u6bb5\u7684\u6578\u64da\u985e\u578b\u3002\u4f8b\u5982\uff0c\u5c0d\u65bc\u5b58\u5132\u96fb\u8a71\u865f\u78bc\u7684\u5b57\u6bb5\uff0c\u53ef\u4ee5\u4f7f\u7528CHAR(10)\u800c\u4e0d\u662fVARCHAR(20)\u3002\u9019\u6a23\u4e0d\u50c5\u53ef\u4ee5\u7bc0\u7701\u5b58\u5132\u7a7a\u9593\uff0c\u9084\u80fd\u63d0\u9ad8\u67e5\u8a62\u6027\u80fd\u3002<\/p>\n<pre><code>ALTER TABLE users MODIFY phone CHAR(10);<\/code><\/pre>\n<h3 id=\"2-%e9%99%90%e5%88%b6%e7%94%a8%e6%88%b6%e8%bc%b8%e5%85%a5-wqGmfSvKDp\">2. \u9650\u5236\u7528\u6236\u8f38\u5165<\/h3>\n<p>\u5728\u61c9\u7528\u7a0b\u5e8f\u5c64\u9762\uff0c\u5c0d\u7528\u6236\u8f38\u5165\u9032\u884c\u9650\u5236\u662f\u9632\u6b62\u5b57\u6bb5\u503c\u904e\u9577\u7684\u6709\u6548\u65b9\u6cd5\u3002\u53ef\u4ee5\u4f7f\u7528\u524d\u7aef\u9a57\u8b49\u548c\u5f8c\u7aef\u9a57\u8b49\u4f86\u78ba\u4fdd\u7528\u6236\u8f38\u5165\u7684\u6578\u64da\u4e0d\u8d85\u904e\u9810\u5b9a\u7684\u9577\u5ea6\u3002\u4f8b\u5982\uff0c\u5728HTML\u8868\u55ae\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528maxlength\u5c6c\u6027\u4f86\u9650\u5236\u8f38\u5165\u9577\u5ea6\uff1a<\/p>\n<pre><code>&lt;input type=\"text\" name=\"username\" maxlength=\"50\"&gt;<\/code><\/pre>\n<h3 id=\"3-%e6%95%b8%e6%93%9a%e6%b8%85%e7%90%86%e5%92%8c%e5%8e%bb%e9%87%8d-wqGmfSvKDp\">3. \u6578\u64da\u6e05\u7406\u548c\u53bb\u91cd<\/h3>\n<p>\u5b9a\u671f\u5c0d\u6578\u64da\u5eab\u9032\u884c\u6e05\u7406\u548c\u53bb\u91cd\uff0c\u53ef\u4ee5\u6709\u6548\u6e1b\u5c11\u5197\u9918\u6578\u64da\u7684\u5b58\u5132\u3002\u53ef\u4ee5\u4f7f\u7528SQL\u67e5\u8a62\u4f86\u67e5\u627e\u548c\u522a\u9664\u91cd\u8907\u7684\u8a18\u9304\uff1a<\/p>\n<pre><code>DELETE FROM users WHERE id NOT IN (SELECT MIN(id) FROM users GROUP BY email);<\/code><\/pre>\n<h3 id=\"4-%e4%bd%bf%e7%94%a8%e5%a3%93%e7%b8%ae%e6%8a%80%e8%a1%93-wqGmfSvKDp\">4. \u4f7f\u7528\u58d3\u7e2e\u6280\u8853<\/h3>\n<p>\u5c0d\u65bc\u67d0\u4e9b\u7279\u5b9a\u985e\u578b\u7684\u6578\u64da\uff0c\u53ef\u4ee5\u8003\u616e\u4f7f\u7528\u58d3\u7e2e\u6280\u8853\u4f86\u6e1b\u5c11\u5b58\u5132\u7a7a\u9593\u3002\u4f8b\u5982\uff0c\u5c0d\u65bc\u9577\u6587\u672c\u5b57\u6bb5\uff0c\u53ef\u4ee5\u4f7f\u7528GZIP\u58d3\u7e2e\u4f86\u6e1b\u5c11\u6578\u64da\u7684\u5927\u5c0f\u3002\u9019\u6a23\u53ef\u4ee5\u5728\u4e0d\u640d\u5931\u6578\u64da\u7684\u60c5\u6cc1\u4e0b\uff0c\u6e1b\u5c11\u5b57\u6bb5\u503c\u7684\u9577\u5ea6\u3002<\/p>\n<pre><code>UPDATE articles SET content = COMPRESS(content);<\/code><\/pre>\n<h2 id=\"%e7%b5%90%e8%ab%96-wqGmfSvKDp\">\u7d50\u8ad6<\/h2>\n<p>\u6578\u64da\u5eab\u5b57\u6bb5\u503c\u904e\u9577\u554f\u984c\u7684\u89e3\u6c7a\u9700\u8981\u5f9e\u6578\u64da\u5eab\u8a2d\u8a08\u3001\u7528\u6236\u8f38\u5165\u9650\u5236\u3001\u6578\u64da\u6e05\u7406\u548c\u58d3\u7e2e\u6280\u8853\u7b49\u591a\u65b9\u9762\u5165\u624b\u3002\u901a\u904e\u5408\u7406\u7684\u6578\u64da\u985e\u578b\u9078\u64c7\u548c\u6709\u6548\u7684\u6578\u64da\u7ba1\u7406\u7b56\u7565\uff0c\u53ef\u4ee5\u986f\u8457\u63d0\u9ad8\u6578\u64da\u5eab\u7684\u6027\u80fd\u548c\u6548\u7387\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u6548\u6578\u64da\u8655\u7406\u7684\u61c9\u7528\uff0c\u9078\u64c7\u5408\u9069\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u89e3\u6c7a\u65b9\u6848\u4e5f\u662f\u81f3\u95dc\u91cd\u8981\u7684\uff0c\u9019\u6a23\u53ef\u4ee5\u78ba\u4fdd\u6578\u64da\u5eab\u904b\u884c\u7684\u7a69\u5b9a\u6027\u548c\u53ef\u9760\u6027\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u89e3\u6c7a\u6578\u64da\u5eab\u5b57\u6bb5\u503c\u904e\u9577\u554f\u984c\u7684\u65b9\u6cd5\uff0c\u5305\u62ec\u8abf\u6574\u5b57\u6bb5\u985e\u578b\u3001\u4f7f\u7528\u58d3\u7e2e\u6280\u8853\u53ca\u6578\u64da\u5206\u5272\u7b56\u7565\uff0c\u63d0\u5347\u6578\u64da\u5eab\u6027\u80fd\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-163873","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/163873","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=163873"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/163873\/revisions"}],"predecessor-version":[{"id":163874,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/163873\/revisions\/163874"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=163873"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=163873"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=163873"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}