{"id":2527,"date":"2020-12-22T08:53:56","date_gmt":"2020-12-22T00:53:56","guid":{"rendered":"https:\/\/www.gbase8.cn\/?p=2527"},"modified":"2021-07-16T10:10:02","modified_gmt":"2021-07-16T02:10:02","slug":"gbase-8a%e9%80%9a%e8%bf%87hex%e5%87%bd%e6%95%b0%e5%b0%8616%e8%bf%9b%e5%88%b6%e6%95%b0%e8%bd%ac%e5%8c%96%e4%b8%ba%e5%ad%97%e7%ac%a6%e5%8f%8a%e5%ad%97%e7%ac%a6%e4%b8%b2%e8%bd%ac16%e8%bf%9b%e5%88%b6","status":"publish","type":"post","link":"https:\/\/www.gbase8.cn\/en\/2527","title":{"rendered":"\u5357\u5927\u901a\u7528GBase 8a\u901a\u8fc7hex\/unhex\u51fd\u6570\u5c0616\u8fdb\u5236\u6570\u5b57\u548c\u5b57\u7b26\u4e32\u8f6c\u6362"},"content":{"rendered":"<p>GBase 8a\u652f\u6301hex\u51fd\u6570\uff0c\u53ef\u4ee5\u5c06\u4e00\u4e2a\u5b57\u7b26\u4e32\u6216\u6570\u503c\u8f6c\u6362\u4e3a\u4e00\u4e2a\u5341\u516d\u8fdb\u5236\u683c\u5f0f\u7684\u5b57\u7b26\u4e32\u3002\u4e5f\u652f\u6301unhex\u5c0616\u8fdb\u5236\u5b57\u7b26\u4e32\u8f6c\u5316\u6210\u6570\u5b57\u3002<\/p>\n\n\n\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_84 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Directory Navigation<\/p>\n<label for=\"ez-toc-cssicon-toggle-item-6a2b164b8763f\" class=\"ez-toc-cssicon-toggle-label\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewbox=\"0 0 24 24\" version=\"1.2\" baseprofile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/label><input type=\"checkbox\"  id=\"ez-toc-cssicon-toggle-item-6a2b164b8763f\"  aria-label=\"Toggle\" \/><nav><ul class='ez-toc-list ez-toc-list-level-1' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.gbase8.cn\/en\/2527\/#%E5%87%BD%E6%95%B0%E8%AF%B4%E6%98%8E_HEXN_or_S\" >\u51fd\u6570\u8bf4\u660e HEX(N_or_S)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.gbase8.cn\/en\/2527\/#%E4%BD%BF%E7%94%A8%E6%A0%B7%E4%BE%8B\" >\u4f7f\u7528\u6837\u4f8b<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.gbase8.cn\/en\/2527\/#N_or_S_%E5%80%BC%E4%B8%BA%E6%95%B0%E5%AD%97\" >N_or_S \u503c\u4e3a\u6570\u5b57<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.gbase8.cn\/en\/2527\/#N_or_S_%E5%80%BC%E4%B8%BA%E5%AD%97%E7%AC%A6%E4%B8%B2%E3%80%82\" >N_or_S \u503c\u4e3a\u5b57\u7b26\u4e32\u3002<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.gbase8.cn\/en\/2527\/#%E5%8F%8D%E5%87%BD%E6%95%B0%EF%BC%8C%E4%BB%8E%E5%AD%97%E7%AC%A6%E4%B8%B2%E8%BD%AC%E5%8D%81%E5%85%AD%E8%BF%9B%E5%88%B6%E6%95%B0\" >\u53cd\u51fd\u6570\uff0c\u4ece\u5b57\u7b26\u4e32\u8f6c\u5341\u516d\u8fdb\u5236\u6570<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.gbase8.cn\/en\/2527\/#UNHEX%E5%87%BD%E6%95%B0\" >UNHEX\u51fd\u6570<\/a><\/li><\/ul><\/nav><\/div>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E5%87%BD%E6%95%B0%E8%AF%B4%E6%98%8E_HEXN_or_S\"><\/span>\u51fd\u6570\u8bf4\u660e HEX(N_or_S)<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>\u8fd4\u56de\u53c2\u6570\u5bf9\u5e94\u7684\u5341\u516d\u8fdb\u5236\u503c\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>\u5982\u679c N_or_S \u662f\u4e00\u4e2a\u6570\u5b57\uff0c\u5219\u8fd4\u56de\u5b83\u7684\u5341\u516d\u8fdb\u5236\u5b57\u7b26\u4e32\u5f62\u5f0f\uff0c\u5728\u8fd9\u91cc\uff0cN \u662f\u4e00\u4e2a BIGINT \u6570\uff0c\u76f8\u5f53\u4e8e CONV(N,10,16)\uff1b<\/li><li>\u5982\u679c N_or_S\u662f\u4e00\u4e2a\u5b57\u7b26\u4e32\uff0c\u5219\u8fd4\u56de\u6bcf\u4e2a\u5b57\u7b26\u5bf9\u5e94\u7684\u5341\u516d\u8fdb\u5236\u5f62\u5f0f\uff0c\u5176\u4e2d\u6bcf\u4e2a\u5b57\u7b26\u88ab\u8f6c\u5316\u4e3a\u4e24\u4e2a\u5341\u516d\u8fdb\u5236\u6570\u5b57\u3002<\/li><li>\u4ee5 0xff \u5f62\u5f0f\u51fa\u73b0\u7684\u5b57\u7b26\u4e32\u662f\u6b64\u51fd\u6570\u7684\u53cd\u8f6c\u64cd\u4f5c\uff0c\u6b64\u65f6\uff0c\u5c06\u6bcf\u4e24\u4f4d\u5341\u516d\u8fdb\u5236\u8f6c\u6362\u6210\u5176 ASCII \u7801\u8f93\u51fa\u4e00\u4e2a\u5b57\u7b26\u3002<\/li><\/ul>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E4%BD%BF%E7%94%A8%E6%A0%B7%E4%BE%8B\"><\/span>\u4f7f\u7528\u6837\u4f8b<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"N_or_S_%E5%80%BC%E4%B8%BA%E6%95%B0%E5%AD%97\"><\/span>N_or_S \u503c\u4e3a\u6570\u5b57<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>gbase&gt; SELECT HEX(255) FROM dual;\n+----------+\n| HEX(255) |\n+----------+\n| FF |\n+----------+\n1 row in set\n<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"N_or_S_%E5%80%BC%E4%B8%BA%E5%AD%97%E7%AC%A6%E4%B8%B2%E3%80%82\"><\/span>N_or_S \u503c\u4e3a\u5b57\u7b26\u4e32\u3002<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>gbase&gt; SELECT HEX('cat') FROM dual;\n+------------+\n| HEX('cat') |\n+------------+\n| 636174 |\n+------------+\n1 row in set<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E5%8F%8D%E5%87%BD%E6%95%B0%EF%BC%8C%E4%BB%8E%E5%AD%97%E7%AC%A6%E4%B8%B2%E8%BD%AC%E5%8D%81%E5%85%AD%E8%BF%9B%E5%88%B6%E6%95%B0\"><\/span>\u53cd\u51fd\u6570\uff0c\u4ece\u5b57\u7b26\u4e32\u8f6c\u5341\u516d\u8fdb\u5236\u6570<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>gbase&gt; SELECT 0x616263 FROM dual;\n+----------+\n| 0x616263 |\n+----------+\n| abc |\n+----------+\n1 row in set\n<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"UNHEX%E5%87%BD%E6%95%B0\"><\/span>UNHEX\u51fd\u6570<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>\u548chex\u5b8c\u5168\u76f8\u53cd\uff0c\u5c0616\u8fdb\u5236\u5b57\u7b26\u4e32\u8fd8\u539f\u6210\u6570\u5b57\u7c7b\u578b\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>gbase> select unhex('616263');\r\n+-----------------+\r\n| unhex('616263') |\r\n+-----------------+\r\n| abc             |\r\n+-----------------+\r\n1 row in set (Elapsed: 00:00:00.00)<\/code><\/pre>","protected":false},"excerpt":{"rendered":"<p>\u5357\u5927\u901a\u7528GBase 8a\u652f\u6301hex\u51fd\u6570\uff0c\u53ef\u4ee5\u5c06\u4e00\u4e2a\u5b57\u7b26\u4e32\u6216\u6570\u503c\u8f6c\u6362\u4e3a\u4e00\u4e2a\u5341\u516d\u8fdb\u5236\u683c\u5f0f\u7684\u5b57<br \/>\n\u7b26\u4e32\u3002<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3],"tags":[36],"class_list":["post-2527","post","type-post","status-publish","format-standard","hentry","category-gbase8a","tag-36"],"_links":{"self":[{"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/posts\/2527","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/comments?post=2527"}],"version-history":[{"count":4,"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/posts\/2527\/revisions"}],"predecessor-version":[{"id":7475,"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/posts\/2527\/revisions\/7475"}],"wp:attachment":[{"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/media?parent=2527"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/categories?post=2527"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/tags?post=2527"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}