{"id":160205,"date":"2024-11-03T21:09:22","date_gmt":"2024-11-03T13:09:22","guid":{"rendered":"https:\/\/server.hk\/cnblog\/160205\/"},"modified":"2024-11-03T21:09:23","modified_gmt":"2024-11-03T13:09:23","slug":"oceanbase-%e6%95%99%e7%a8%8b%ef%bc%9aoceanbase-rawtohex","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/160205\/","title":{"rendered":"OceanBase \u6559\u7a0b\uff1aOceanBase RAWTOHEX"},"content":{"rendered":"<h1 id=\"oceanbase-%e6%95%99%e7%a8%8b%ef%bc%9aoceanbase-rawtohex-GICBGlkRls\">OceanBase \u6559\u7a0b\uff1aOceanBase RAWTOHEX<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u6578\u64da\u5eab\u7ba1\u7406\u7cfb\u7d71\u4e2d\uff0cOceanBase \u4f5c\u70ba\u4e00\u500b\u9ad8\u6027\u80fd\u7684\u5206\u4f48\u5f0f\u6578\u64da\u5eab\uff0c\u8d8a\u4f86\u8d8a\u53d7\u5230\u958b\u767c\u8005\u548c\u4f01\u696d\u7684\u9752\u775e\u3002\u5b83\u4e0d\u50c5\u652f\u6301\u9ad8\u4e26\u767c\u7684\u8b80\u5beb\u64cd\u4f5c\uff0c\u9084\u5177\u5099\u826f\u597d\u7684\u64f4\u5c55\u6027\u548c\u5bb9\u932f\u80fd\u529b\u3002\u5728\u9019\u7bc7\u6587\u7ae0\u4e2d\uff0c\u6211\u5011\u5c07\u6df1\u5165\u63a2\u8a0e OceanBase \u4e2d\u7684 RAWTOHEX \u51fd\u6578\uff0c\u4e26\u63d0\u4f9b\u4e00\u4e9b\u5be6\u7528\u7684\u793a\u4f8b\u4f86\u5e6b\u52a9\u60a8\u66f4\u597d\u5730\u7406\u89e3\u9019\u4e00\u529f\u80fd\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%af-rawtohex-%e5%87%bd%e6%95%b8%ef%bc%9f-GICBGlkRls\">\u4ec0\u9ebc\u662f RAWTOHEX \u51fd\u6578\uff1f<\/h2>\n<p>RAWTOHEX \u51fd\u6578\u662f\u4e00\u500b\u7528\u65bc\u5c07\u4e8c\u9032\u5236\u6578\u64da\u8f49\u63db\u70ba\u5341\u516d\u9032\u5236\u5b57\u7b26\u4e32\u7684\u51fd\u6578\u3002\u5728 OceanBase \u4e2d\uff0c\u9019\u500b\u51fd\u6578\u975e\u5e38\u6709\u7528\uff0c\u7279\u5225\u662f\u5728\u8655\u7406\u9700\u8981\u4ee5\u5341\u516d\u9032\u5236\u683c\u5f0f\u8868\u793a\u7684\u6578\u64da\u6642\uff0c\u4f8b\u5982\u52a0\u5bc6\u6578\u64da\u6216\u67d0\u4e9b\u985e\u578b\u7684\u5716\u50cf\u6578\u64da\u3002<\/p>\n<h2 id=\"rawtohex-%e7%9a%84%e8%aa%9e%e6%b3%95-GICBGlkRls\">RAWTOHEX \u7684\u8a9e\u6cd5<\/h2>\n<pre><code>RAWTOHEX(binary_data)<\/code><\/pre>\n<p>\u5176\u4e2d\uff0c<code>binary_data<\/code> \u662f\u60a8\u5e0c\u671b\u8f49\u63db\u7684\u4e8c\u9032\u5236\u6578\u64da\u3002\u8a72\u51fd\u6578\u5c07\u8fd4\u56de\u4e00\u500b\u4ee5\u5341\u516d\u9032\u5236\u8868\u793a\u7684\u5b57\u7b26\u4e32\u3002<\/p>\n<h2 id=\"%e4%bd%bf%e7%94%a8%e7%a4%ba%e4%be%8b-GICBGlkRls\">\u4f7f\u7528\u793a\u4f8b<\/h2>\n<p>\u4ee5\u4e0b\u662f\u4e00\u4e9b\u4f7f\u7528 RAWTOHEX \u51fd\u6578\u7684\u793a\u4f8b\uff0c\u5e6b\u52a9\u60a8\u66f4\u597d\u5730\u7406\u89e3\u5176\u7528\u6cd5\uff1a<\/p>\n<h3 id=\"%e7%a4%ba%e4%be%8b-1%ef%bc%9a%e5%9f%ba%e6%9c%ac%e7%94%a8%e6%b3%95-GICBGlkRls\">\u793a\u4f8b 1\uff1a\u57fa\u672c\u7528\u6cd5<\/h3>\n<pre><code>SELECT RAWTOHEX(UTL_RAW.CAST_TO_RAW('Hello World')) AS hex_value;<\/code><\/pre>\n<p>\u5728\u9019\u500b\u793a\u4f8b\u4e2d\uff0c\u6211\u5011\u5c07\u5b57\u7b26\u4e32 &#8216;Hello World&#8217; \u8f49\u63db\u70ba\u4e8c\u9032\u5236\u683c\u5f0f\uff0c\u7136\u5f8c\u4f7f\u7528 RAWTOHEX \u51fd\u6578\u5c07\u5176\u8f49\u63db\u70ba\u5341\u516d\u9032\u5236\u5b57\u7b26\u4e32\u3002\u57f7\u884c\u5f8c\uff0c\u60a8\u5c07\u7372\u5f97\u4ee5\u4e0b\u7d50\u679c\uff1a<\/p>\n<pre><code>hex_value\n----------------\n48656C6C6F20576F726C64\n<\/code><\/pre>\n<h3 id=\"%e7%a4%ba%e4%be%8b-2%ef%bc%9a%e8%99%95%e7%90%86%e5%9c%96%e5%83%8f%e6%95%b8%e6%93%9a-GICBGlkRls\">\u793a\u4f8b 2\uff1a\u8655\u7406\u5716\u50cf\u6578\u64da<\/h3>\n<p>\u5047\u8a2d\u60a8\u6709\u4e00\u500b\u5305\u542b\u5716\u50cf\u6578\u64da\u7684\u8868\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528 RAWTOHEX \u51fd\u6578\u5c07\u5716\u50cf\u6578\u64da\u8f49\u63db\u70ba\u5341\u516d\u9032\u5236\u683c\u5f0f\uff0c\u4ee5\u4fbf\u65bc\u5b58\u5132\u6216\u50b3\u8f38\u3002<\/p>\n<pre><code>SELECT id, RAWTOHEX(image_data) AS hex_image\nFROM images_table;<\/code><\/pre>\n<p>\u9019\u6a23\uff0c\u60a8\u53ef\u4ee5\u7372\u5f97\u6bcf\u500b\u5716\u50cf\u7684\u5341\u516d\u9032\u5236\u8868\u793a\uff0c\u65b9\u4fbf\u9032\u884c\u5f8c\u7e8c\u7684\u8655\u7406\u6216\u986f\u793a\u3002<\/p>\n<h3 id=\"%e7%a4%ba%e4%be%8b-3%ef%bc%9a%e8%88%87%e5%85%b6%e4%bb%96%e5%87%bd%e6%95%b8%e7%b5%90%e5%90%88%e4%bd%bf%e7%94%a8-GICBGlkRls\">\u793a\u4f8b 3\uff1a\u8207\u5176\u4ed6\u51fd\u6578\u7d50\u5408\u4f7f\u7528<\/h3>\n<p>\u60a8\u9084\u53ef\u4ee5\u5c07 RAWTOHEX \u51fd\u6578\u8207\u5176\u4ed6\u51fd\u6578\u7d50\u5408\u4f7f\u7528\uff0c\u4ee5\u5be6\u73fe\u66f4\u8907\u96dc\u7684\u6578\u64da\u8655\u7406\u3002\u4f8b\u5982\uff0c\u60a8\u53ef\u4ee5\u5c07\u5176\u8207 CONCAT \u51fd\u6578\u7d50\u5408\uff0c\u5c07\u591a\u500b\u4e8c\u9032\u5236\u6578\u64da\u5408\u4f75\u4e26\u8f49\u63db\u70ba\u5341\u516d\u9032\u5236\u683c\u5f0f\uff1a<\/p>\n<pre><code>SELECT RAWTOHEX(CONCAT(UTL_RAW.CAST_TO_RAW('Data1'), UTL_RAW.CAST_TO_RAW('Data2'))) AS combined_hex;<\/code><\/pre>\n<p>\u9019\u6a23\uff0c\u60a8\u53ef\u4ee5\u7372\u5f97\u5408\u4f75\u5f8c\u7684\u6578\u64da\u7684\u5341\u516d\u9032\u5236\u8868\u793a\u3002<\/p>\n<h2 id=\"%e7%b8%bd%e7%b5%90-GICBGlkRls\">\u7e3d\u7d50<\/h2>\n<p>\u5728\u672c\u6587\u4e2d\uff0c\u6211\u5011\u63a2\u8a0e\u4e86 OceanBase \u4e2d\u7684 RAWTOHEX \u51fd\u6578\u53ca\u5176\u7528\u6cd5\u3002\u9019\u500b\u51fd\u6578\u5728\u8655\u7406\u4e8c\u9032\u5236\u6578\u64da\u6642\u975e\u5e38\u6709\u7528\uff0c\u7279\u5225\u662f\u5728\u9700\u8981\u5c07\u6578\u64da\u8f49\u63db\u70ba\u5341\u516d\u9032\u5236\u683c\u5f0f\u7684\u60c5\u6cc1\u4e0b\u3002\u901a\u904e\u4e0a\u8ff0\u793a\u4f8b\uff0c\u60a8\u61c9\u8a72\u80fd\u5920\u66f4\u597d\u5730\u7406\u89e3\u5982\u4f55\u5728\u5be6\u969b\u61c9\u7528\u4e2d\u4f7f\u7528\u9019\u4e00\u51fd\u6578\u3002<\/p>\n<p>\u5982\u679c\u60a8\u5c0d\u65bc\u6578\u64da\u5eab\u7ba1\u7406\u6216\u5176\u4ed6\u6280\u8853\u554f\u984c\u6709\u8208\u8da3\uff0c\u6b61\u8fce\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u4e86\u89e3\u66f4\u591a\u8cc7\u8a0a\u3002\u6211\u5011\u63d0\u4f9b\u5404\u7a2e <a href=\"https:\/\/server.hk\">VPS<\/a> \u89e3\u6c7a\u65b9\u6848\uff0c\u5e6b\u52a9\u60a8\u5728\u9999\u6e2f\u7684\u696d\u52d9\u904b\u884c\u66f4\u52a0\u9806\u5229\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Learn how to use OceanBase RAWTOHEX function to convert raw data to hexadecimal format efficiently in this comprehensive tutorial.<\/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-160205","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/160205","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=160205"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/160205\/revisions"}],"predecessor-version":[{"id":160206,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/160205\/revisions\/160206"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=160205"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=160205"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=160205"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}