{"id":76054,"date":"2024-10-16T03:28:17","date_gmt":"2024-10-15T19:28:17","guid":{"rendered":"https:\/\/server.hk\/cnblog\/76054\/"},"modified":"2024-10-16T03:28:17","modified_gmt":"2024-10-15T19:28:17","slug":"mysql-%e5%ae%a2%e6%88%b6%e7%ab%af%e9%a1%af%e7%a4%babinary%e5%ad%97%e7%ac%a6%e4%bb%a3%e7%a2%bc%e6%94%b9%e9%80%a0","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/76054\/","title":{"rendered":"MySQL \u5ba2\u6236\u7aef\u986f\u793abinary\u5b57\u7b26\u4ee3\u78bc\u6539\u9020"},"content":{"rendered":"<h1 id=\"mysql-%e5%ae%a2%e6%88%b6%e7%ab%af%e9%a1%af%e7%a4%ba-binary-%e5%ad%97%e7%ac%a6%e4%bb%a3%e7%a2%bc%e6%94%b9%e9%80%a0-YJfNzMztTQ\">MySQL \u5ba2\u6236\u7aef\u986f\u793a binary \u5b57\u7b26\u4ee3\u78bc\u6539\u9020<\/h1>\n<p>\u5728\u6578\u64da\u5eab\u7ba1\u7406\u4e2d\uff0cMySQL \u662f\u4e00\u500b\u5ee3\u6cdb\u4f7f\u7528\u7684\u95dc\u4fc2\u578b\u6578\u64da\u5eab\u7cfb\u7d71\u3002\u96a8\u8457\u6578\u64da\u7684\u591a\u6a23\u5316\uff0c\u958b\u767c\u8005\u7d93\u5e38\u9700\u8981\u8655\u7406\u5404\u7a2e\u5b57\u7b26\u96c6\u548c\u7de8\u78bc\u683c\u5f0f\u3002\u7279\u5225\u662f\u5728\u8655\u7406\u4e8c\u9032\u5236\u6578\u64da\u6642\uff0cMySQL \u5ba2\u6236\u7aef\u7684\u986f\u793a\u65b9\u5f0f\u53ef\u80fd\u6703\u5f71\u97ff\u6578\u64da\u7684\u53ef\u8b80\u6027\u548c\u53ef\u7528\u6027\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5982\u4f55\u6539\u9020 MySQL \u5ba2\u6236\u7aef\u4ee5\u986f\u793a binary \u5b57\u7b26\u4ee3\u78bc\uff0c\u4e26\u63d0\u4f9b\u4e00\u4e9b\u5be6\u7528\u7684\u793a\u4f8b\u548c\u4ee3\u78bc\u7247\u6bb5\u3002<\/p>\n<h2 id=\"%e7%82%ba%e4%bb%80%e9%ba%bc%e9%9c%80%e8%a6%81%e9%a1%af%e7%a4%ba-binary-%e5%ad%97%e7%ac%a6%e4%bb%a3%e7%a2%bc-YJfNzMztTQ\">\u70ba\u4ec0\u9ebc\u9700\u8981\u986f\u793a binary \u5b57\u7b26\u4ee3\u78bc<\/h2>\n<p>\u5728\u67d0\u4e9b\u60c5\u6cc1\u4e0b\uff0c\u6578\u64da\u5eab\u4e2d\u5b58\u5132\u7684\u6578\u64da\u53ef\u80fd\u662f\u4e8c\u9032\u5236\u683c\u5f0f\uff0c\u4f8b\u5982\u5716\u50cf\u3001\u97f3\u983b\u6216\u5176\u4ed6\u975e\u6587\u672c\u6578\u64da\u3002\u9019\u4e9b\u6578\u64da\u5728 MySQL \u5ba2\u6236\u7aef\u4e2d\u986f\u793a\u6642\uff0c\u53ef\u80fd\u6703\u51fa\u73fe\u4e82\u78bc\u6216\u7121\u6cd5\u8b58\u5225\u7684\u5b57\u7b26\u3002\u70ba\u4e86\u66f4\u597d\u5730\u7406\u89e3\u548c\u8655\u7406\u9019\u4e9b\u6578\u64da\uff0c\u958b\u767c\u8005\u9700\u8981\u5c07\u5176\u8f49\u63db\u70ba\u53ef\u8b80\u7684 binary \u5b57\u7b26\u4ee3\u78bc\u3002<\/p>\n<h2 id=\"mysql-%e5%ae%a2%e6%88%b6%e7%ab%af%e7%9a%84%e5%9f%ba%e6%9c%ac%e8%a8%ad%e7%bd%ae-YJfNzMztTQ\">MySQL \u5ba2\u6236\u7aef\u7684\u57fa\u672c\u8a2d\u7f6e<\/h2>\n<p>\u5728\u958b\u59cb\u4e4b\u524d\uff0c\u78ba\u4fdd\u4f60\u7684 MySQL \u5ba2\u6236\u7aef\u5df2\u6b63\u78ba\u5b89\u88dd\u4e26\u914d\u7f6e\u3002\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u6aa2\u67e5 MySQL \u7684\u7248\u672c\uff1a<\/p>\n<pre><code>mysql --version<\/code><\/pre>\n<p>\u63a5\u4e0b\u4f86\uff0c\u9023\u63a5\u5230\u4f60\u7684 MySQL \u6578\u64da\u5eab\uff1a<\/p>\n<pre><code>mysql -u username -p<\/code><\/pre>\n<h2 id=\"%e9%a1%af%e7%a4%ba-binary-%e6%95%b8%e6%93%9a%e7%9a%84%e5%9f%ba%e6%9c%ac%e6%96%b9%e6%b3%95-YJfNzMztTQ\">\u986f\u793a binary \u6578\u64da\u7684\u57fa\u672c\u65b9\u6cd5<\/h2>\n<p>\u5728 MySQL \u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528 HEX() \u51fd\u6578\u5c07\u4e8c\u9032\u5236\u6578\u64da\u8f49\u63db\u70ba\u5341\u516d\u9032\u5236\u5b57\u7b26\u4e32\u3002\u9019\u6a23\u53ef\u4ee5\u66f4\u6e05\u6670\u5730\u67e5\u770b\u6578\u64da\u5167\u5bb9\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u793a\u4f8b\uff1a<\/p>\n<pre><code>SELECT HEX(column_name) FROM table_name WHERE condition;<\/code><\/pre>\n<p>\u9019\u689d\u67e5\u8a62\u5c07\u8fd4\u56de\u6307\u5b9a\u5217\u7684\u4e8c\u9032\u5236\u6578\u64da\u7684\u5341\u516d\u9032\u5236\u8868\u793a\u3002\u9019\u5c0d\u65bc\u8abf\u8a66\u548c\u6578\u64da\u5206\u6790\u975e\u5e38\u6709\u7528\u3002<\/p>\n<h2 id=\"%e4%bd%bf%e7%94%a8-cast-%e5%87%bd%e6%95%b8%e8%bd%89%e6%8f%9b%e6%95%b8%e6%93%9a%e9%a1%9e%e5%9e%8b-YJfNzMztTQ\">\u4f7f\u7528 CAST() \u51fd\u6578\u8f49\u63db\u6578\u64da\u985e\u578b<\/h2>\n<p>\u9664\u4e86\u4f7f\u7528 HEX() \u51fd\u6578\uff0c\u9084\u53ef\u4ee5\u4f7f\u7528 CAST() \u51fd\u6578\u5c07\u4e8c\u9032\u5236\u6578\u64da\u8f49\u63db\u70ba\u5176\u4ed6\u6578\u64da\u985e\u578b\u3002\u4f8b\u5982\uff0c\u5c07\u4e8c\u9032\u5236\u6578\u64da\u8f49\u63db\u70ba\u5b57\u7b26\u4e32\uff1a<\/p>\n<pre><code>SELECT CAST(column_name AS CHAR) FROM table_name WHERE condition;<\/code><\/pre>\n<p>\u9019\u6a23\u53ef\u4ee5\u5c07\u4e8c\u9032\u5236\u6578\u64da\u8f49\u63db\u70ba\u53ef\u8b80\u7684\u5b57\u7b26\u683c\u5f0f\uff0c\u4fbf\u65bc\u9032\u4e00\u6b65\u8655\u7406\u3002<\/p>\n<h2 id=\"%e8%87%aa%e5%ae%9a%e7%be%a9%e9%a1%af%e7%a4%ba%e6%a0%bc%e5%bc%8f-YJfNzMztTQ\">\u81ea\u5b9a\u7fa9\u986f\u793a\u683c\u5f0f<\/h2>\n<p>\u5982\u679c\u9700\u8981\u66f4\u9748\u6d3b\u7684\u986f\u793a\u683c\u5f0f\uff0c\u53ef\u4ee5\u8003\u616e\u4f7f\u7528 CONCAT() \u51fd\u6578\u4f86\u7d44\u5408\u591a\u500b\u5b57\u6bb5\u7684\u986f\u793a\u3002\u4f8b\u5982\uff1a<\/p>\n<pre><code>SELECT CONCAT('Data: ', HEX(column_name)) AS formatted_output FROM table_name WHERE condition;<\/code><\/pre>\n<p>\u9019\u6a23\u53ef\u4ee5\u5728\u986f\u793a\u7684\u7d50\u679c\u4e2d\u6dfb\u52a0\u81ea\u5b9a\u7fa9\u6587\u672c\uff0c\u589e\u5f37\u53ef\u8b80\u6027\u3002<\/p>\n<h2 id=\"%e6%b3%a8%e6%84%8f%e4%ba%8b%e9%a0%85-YJfNzMztTQ\">\u6ce8\u610f\u4e8b\u9805<\/h2>\n<ul>\n<li>\u5728\u8655\u7406\u4e8c\u9032\u5236\u6578\u64da\u6642\uff0c\u8acb\u78ba\u4fdd\u4e86\u89e3\u6578\u64da\u7684\u539f\u59cb\u683c\u5f0f\uff0c\u4ee5\u907f\u514d\u8f49\u63db\u904e\u7a0b\u4e2d\u7684\u6578\u64da\u640d\u5931\u3002<\/li>\n<li>\u5728\u4f7f\u7528 CAST() \u51fd\u6578\u6642\uff0c\u8acb\u6ce8\u610f\u5b57\u7b26\u96c6\u7684\u517c\u5bb9\u6027\uff0c\u4ee5\u78ba\u4fdd\u8f49\u63db\u5f8c\u7684\u6578\u64da\u6b63\u78ba\u986f\u793a\u3002<\/li>\n<li>\u5c0d\u65bc\u5927\u578b\u6578\u64da\u96c6\uff0c\u4f7f\u7528 HEX() \u51fd\u6578\u53ef\u80fd\u6703\u5f71\u97ff\u67e5\u8a62\u6027\u80fd\uff0c\u5efa\u8b70\u5728\u5fc5\u8981\u6642\u4f7f\u7528\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-YJfNzMztTQ\">\u7e3d\u7d50<\/h2>\n<p>\u5728 MySQL \u4e2d\u986f\u793a binary \u5b57\u7b26\u4ee3\u78bc\u7684\u6539\u9020\u904e\u7a0b\u6d89\u53ca\u591a\u7a2e\u65b9\u6cd5\uff0c\u5305\u62ec\u4f7f\u7528 HEX() \u548c CAST() \u51fd\u6578\u3002\u9019\u4e9b\u6280\u8853\u4e0d\u50c5\u80fd\u63d0\u9ad8\u6578\u64da\u7684\u53ef\u8b80\u6027\uff0c\u9084\u80fd\u5e6b\u52a9\u958b\u767c\u8005\u66f4\u597d\u5730\u7406\u89e3\u548c\u8655\u7406\u4e8c\u9032\u5236\u6578\u64da\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u6548\u6578\u64da\u7ba1\u7406\u7684\u7528\u6236\uff0c\u9078\u64c7\u5408\u9069\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u89e3\u6c7a\u65b9\u6848\u53ef\u4ee5\u9032\u4e00\u6b65\u63d0\u5347\u6578\u64da\u5eab\u6027\u80fd\u548c\u7a69\u5b9a\u6027\u3002\u7121\u8ad6\u662f\u9078\u64c7 <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u9084\u662f\u5176\u4ed6\u670d\u52d9\uff0c\u78ba\u4fdd\u4f60\u7684\u6578\u64da\u5eab\u74b0\u5883\u80fd\u5920\u652f\u6301\u9019\u4e9b\u64cd\u4f5c\u662f\u81f3\u95dc\u91cd\u8981\u7684\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22\u5982\u4f55\u5728MySQL\u5ba2\u6236\u7aef\u4e2d\u986f\u793a\u4e8c\u9032\u5236\u5b57\u7b26\u4ee3\u78bc\uff0c\u63d0\u5347\u6578\u64da\u53ef\u8b80\u6027\u8207\u7ba1\u7406\u6548\u7387\uff0c\u7c21\u5316\u6578\u64da\u8655\u7406\u6d41\u7a0b\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-76054","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/76054","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=76054"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/76054\/revisions"}],"predecessor-version":[{"id":76055,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/76054\/revisions\/76055"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=76054"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=76054"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=76054"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}