{"id":78630,"date":"2024-10-16T12:08:18","date_gmt":"2024-10-16T04:08:18","guid":{"rendered":"https:\/\/server.hk\/cnblog\/78630\/"},"modified":"2024-10-16T12:08:19","modified_gmt":"2024-10-16T04:08:19","slug":"mysql%e6%8c%87%e4%bb%a4-hex%ef%bc%88%e5%8d%81%e5%85%ad%e9%80%b2%e5%88%b6%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/78630\/","title":{"rendered":"MySQL\u6307\u4ee4: HEX()\uff08\u5341\u516d\u9032\u5236\uff09"},"content":{"rendered":"<h1 id=\"mysql%e6%8c%87%e4%bb%a4-hex%ef%bc%88%e5%8d%81%e5%85%ad%e9%80%b2%e5%88%b6%ef%bc%89-okbVbJbiBa\">MySQL\u6307\u4ee4: HEX()\uff08\u5341\u516d\u9032\u5236\uff09<\/h1>\n<p>\u5728\u6578\u64da\u5eab\u7ba1\u7406\u4e2d\uff0cMySQL\u662f\u4e00\u500b\u5ee3\u6cdb\u4f7f\u7528\u7684\u95dc\u806f\u6578\u64da\u5eab\u7ba1\u7406\u7cfb\u7d71\u3002\u5b83\u63d0\u4f9b\u4e86\u591a\u7a2e\u529f\u80fd\u4f86\u8655\u7406\u548c\u67e5\u8a62\u6578\u64da\uff0c\u5176\u4e2d\u4e4b\u4e00\u5c31\u662fHEX()\u51fd\u6578\u3002\u9019\u500b\u51fd\u6578\u7684\u4e3b\u8981\u7528\u9014\u662f\u5c07\u5b57\u7b26\u4e32\u6216\u6578\u5b57\u8f49\u63db\u70ba\u5176\u5341\u516d\u9032\u5236\u8868\u793a\u5f62\u5f0f\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0eHEX()\u51fd\u6578\u7684\u7528\u6cd5\u3001\u61c9\u7528\u5834\u666f\u53ca\u5176\u5728\u6578\u64da\u8655\u7406\u4e2d\u7684\u91cd\u8981\u6027\u3002<\/p>\n<h2 id=\"hex%e5%87%bd%e6%95%b8%e7%9a%84%e5%9f%ba%e6%9c%ac%e7%94%a8%e6%b3%95-okbVbJbiBa\">HEX()\u51fd\u6578\u7684\u57fa\u672c\u7528\u6cd5<\/h2>\n<p>HEX()\u51fd\u6578\u7684\u8a9e\u6cd5\u975e\u5e38\u7c21\u55ae\uff0c\u683c\u5f0f\u5982\u4e0b\uff1a<\/p>\n<pre><code>HEX(value)<\/code><\/pre>\n<p>\u5176\u4e2d\uff0c<code>value<\/code>\u53ef\u4ee5\u662f\u4efb\u4f55\u5b57\u7b26\u4e32\u6216\u6578\u5b57\u3002\u7576\u4f60\u8abf\u7528\u9019\u500b\u51fd\u6578\u6642\uff0c\u5b83\u6703\u8fd4\u56de\u8a72\u503c\u7684\u5341\u516d\u9032\u5236\u8868\u793a\u3002\u4f8b\u5982\uff1a<\/p>\n<pre><code>SELECT HEX('Hello');<\/code><\/pre>\n<p>\u9019\u689d\u67e5\u8a62\u5c07\u8fd4\u56de\u5b57\u7b26\u4e32\u201cHello\u201d\u7684\u5341\u516d\u9032\u5236\u8868\u793a\uff0c\u7d50\u679c\u70ba\u201c48656C6C6F\u201d\u3002<\/p>\n<h2 id=\"hex%e5%87%bd%e6%95%b8%e7%9a%84%e6%87%89%e7%94%a8%e5%a0%b4%e6%99%af-okbVbJbiBa\">HEX()\u51fd\u6578\u7684\u61c9\u7528\u5834\u666f<\/h2>\n<p>HEX()\u51fd\u6578\u5728\u591a\u7a2e\u60c5\u6cc1\u4e0b\u90fd\u975e\u5e38\u6709\u7528\uff0c\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u898b\u7684\u61c9\u7528\u5834\u666f\uff1a<\/p>\n<ul>\n<li><strong>\u6578\u64da\u52a0\u5bc6\uff1a<\/strong>\u5728\u67d0\u4e9b\u60c5\u6cc1\u4e0b\uff0c\u5c07\u6578\u64da\u8f49\u63db\u70ba\u5341\u516d\u9032\u5236\u683c\u5f0f\u53ef\u4ee5\u589e\u52a0\u6578\u64da\u7684\u5b89\u5168\u6027\u3002\u4f8b\u5982\uff0c\u5b58\u5132\u5bc6\u78bc\u6642\uff0c\u53ef\u4ee5\u5c07\u5176\u8f49\u63db\u70ba\u5341\u516d\u9032\u5236\u4ee5\u9632\u6b62\u76f4\u63a5\u67e5\u770b\u3002<\/li>\n<li><strong>\u6578\u64da\u50b3\u8f38\uff1a<\/strong>\u5728\u7db2\u7d61\u50b3\u8f38\u4e2d\uff0c\u67d0\u4e9b\u5354\u8b70\u8981\u6c42\u6578\u64da\u4ee5\u5341\u516d\u9032\u5236\u683c\u5f0f\u767c\u9001\u3002\u4f7f\u7528HEX()\u51fd\u6578\u53ef\u4ee5\u65b9\u4fbf\u5730\u5c07\u6578\u64da\u8f49\u63db\u70ba\u6240\u9700\u683c\u5f0f\u3002<\/li>\n<li><strong>\u8abf\u8a66\u548c\u65e5\u8a8c\u8a18\u9304\uff1a<\/strong>\u5728\u958b\u767c\u904e\u7a0b\u4e2d\uff0c\u5c07\u6578\u64da\u8f49\u63db\u70ba\u5341\u516d\u9032\u5236\u683c\u5f0f\u53ef\u4ee5\u5e6b\u52a9\u958b\u767c\u8005\u66f4\u597d\u5730\u7406\u89e3\u6578\u64da\u7684\u7d50\u69cb\uff0c\u7279\u5225\u662f\u5728\u8655\u7406\u4e8c\u9032\u5236\u6578\u64da\u6642\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%a4%ba%e4%be%8b%ef%bc%9a%e4%bd%bf%e7%94%a8hex%e5%87%bd%e6%95%b8-okbVbJbiBa\">\u793a\u4f8b\uff1a\u4f7f\u7528HEX()\u51fd\u6578<\/h2>\n<p>\u4ee5\u4e0b\u662f\u4e00\u500b\u4f7f\u7528HEX()\u51fd\u6578\u7684\u5be6\u969b\u793a\u4f8b\uff0c\u5047\u8a2d\u6211\u5011\u6709\u4e00\u500b\u540d\u70ba<code>users<\/code>\u7684\u8868\uff0c\u8a72\u8868\u5305\u542b\u7528\u6236\u7684\u59d3\u540d\u548c\u96fb\u5b50\u90f5\u4ef6\u5730\u5740\uff1a<\/p>\n<pre><code>CREATE TABLE users (\n    id INT AUTO_INCREMENT PRIMARY KEY,\n    name VARCHAR(100),\n    email VARCHAR(100)\n);\n\nINSERT INTO users (name, email) VALUES ('Alice', 'alice@example.com');\nINSERT INTO users (name, email) VALUES ('Bob', 'bob@example.com');\n\nSELECT name, HEX(email) AS email_hex FROM users;<\/code><\/pre>\n<p>\u9019\u689d\u67e5\u8a62\u5c07\u8fd4\u56de\u7528\u6236\u59d3\u540d\u53ca\u5176\u96fb\u5b50\u90f5\u4ef6\u5730\u5740\u7684\u5341\u516d\u9032\u5236\u8868\u793a\u3002\u7d50\u679c\u53ef\u80fd\u5982\u4e0b\u6240\u793a\uff1a<\/p>\n<pre><code>+-------+---------------------+\n| name  | email_hex          |\n+-------+---------------------+\n| Alice | 616C696365406578616D706C652E636F6D |\n| Bob   | 626F6220406578616D706C652E636F6D     |\n+-------+---------------------+<\/code><\/pre>\n<h2 id=\"%e6%b3%a8%e6%84%8f%e4%ba%8b%e9%a0%85-okbVbJbiBa\">\u6ce8\u610f\u4e8b\u9805<\/h2>\n<p>\u5728\u4f7f\u7528HEX()\u51fd\u6578\u6642\uff0c\u6709\u5e7e\u9ede\u9700\u8981\u6ce8\u610f\uff1a<\/p>\n<ul>\n<li>HEX()\u51fd\u6578\u50c5\u9069\u7528\u65bc\u5b57\u7b26\u4e32\u548c\u6578\u5b57\u985e\u578b\uff0c\u5c0d\u65bc\u5176\u4ed6\u6578\u64da\u985e\u578b\u53ef\u80fd\u6703\u7522\u751f\u932f\u8aa4\u3002<\/li>\n<li>\u8fd4\u56de\u7684\u5341\u516d\u9032\u5236\u5b57\u7b26\u4e32\u662f\u4ee5\u5927\u5beb\u5b57\u6bcd\u8868\u793a\u7684\uff0c\u9019\u5728\u67d0\u4e9b\u60c5\u6cc1\u4e0b\u53ef\u80fd\u9700\u8981\u8f49\u63db\u70ba\u5c0f\u5beb\u3002<\/li>\n<li>\u5c0d\u65bc\u5927\u578b\u6578\u64da\u96c6\uff0c\u4f7f\u7528HEX()\u51fd\u6578\u53ef\u80fd\u6703\u5f71\u97ff\u6027\u80fd\uff0c\u56e0\u6b64\u5728\u67e5\u8a62\u6642\u61c9\u8b39\u614e\u4f7f\u7528\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-okbVbJbiBa\">\u7e3d\u7d50<\/h2>\n<p>HEX()\u51fd\u6578\u5728MySQL\u4e2d\u662f\u4e00\u500b\u5f37\u5927\u7684\u5de5\u5177\uff0c\u80fd\u5920\u5c07\u6578\u64da\u8f49\u63db\u70ba\u5341\u516d\u9032\u5236\u683c\u5f0f\uff0c\u4e26\u5728\u591a\u7a2e\u61c9\u7528\u5834\u666f\u4e2d\u767c\u63ee\u91cd\u8981\u4f5c\u7528\u3002\u7121\u8ad6\u662f\u5728\u6578\u64da\u52a0\u5bc6\u3001\u6578\u64da\u50b3\u8f38\u9084\u662f\u8abf\u8a66\u904e\u7a0b\u4e2d\uff0cHEX()\u51fd\u6578\u90fd\u80fd\u63d0\u4f9b\u4fbf\u5229\u3002\u5c0d\u65bc\u9700\u8981\u8655\u7406\u5927\u91cf\u6578\u64da\u7684\u958b\u767c\u8005\u4f86\u8aaa\uff0c\u4e86\u89e3\u5982\u4f55\u6709\u6548\u4f7f\u7528\u9019\u500b\u51fd\u6578\u662f\u975e\u5e38\u91cd\u8981\u7684\u3002<\/p>\n<p>\u5982\u679c\u60a8\u5c0d\u65bc\u6578\u64da\u5eab\u7ba1\u7406\u6216\u5176\u4ed6\u76f8\u95dc\u6280\u8853\u6709\u8208\u8da3\uff0c\u6b61\u8fce\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u4e86\u89e3\u66f4\u591a\u8cc7\u8a0a\uff0c\u7279\u5225\u662f\u6211\u5011\u7684<a href=\"https:\/\/server.hk\">VPS<\/a> \u65b9\u6848\uff0c\u63d0\u4f9b\u7a69\u5b9a\u7684\u6578\u64da\u5eab\u652f\u6301\u548c\u9ad8\u6548\u7684\u670d\u52d9\u5668\u6027\u80fd\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e86\u89e3MySQL\u4e2d\u7684HEX()\u6307\u4ee4\uff0c\u5c07\u6578\u64da\u8f49\u63db\u70ba\u5341\u516d\u9032\u5236\u683c\u5f0f\uff0c\u4fbf\u65bc\u6578\u64da\u8655\u7406\u548c\u986f\u793a\u3002\u63a2\u7d22\u5176\u7528\u6cd5\u548c\u61c9\u7528\u5834\u666f\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-78630","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/78630","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=78630"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/78630\/revisions"}],"predecessor-version":[{"id":78631,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/78630\/revisions\/78631"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=78630"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=78630"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=78630"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}