{"id":179202,"date":"2024-11-08T23:51:19","date_gmt":"2024-11-08T15:51:19","guid":{"rendered":"https:\/\/server.hk\/cnblog\/179202\/"},"modified":"2024-11-08T23:51:20","modified_gmt":"2024-11-08T15:51:20","slug":"%e5%a6%82%e4%bd%95%e4%bf%ae%e6%94%b9-mysql-%e6%95%b8%e6%93%9a%e5%ba%ab%e5%ad%97%e7%ac%a6%e7%b7%a8%e7%a2%bc-%e4%bf%ae%e6%94%b9-mysql-%e6%95%b8%e6%93%9a%e5%ba%ab%e5%ad%97%e7%ac%a6%e7%b7%a8%e7%a2%bc","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/179202\/","title":{"rendered":"\u5982\u4f55\u4fee\u6539 MySQL \u6578\u64da\u5eab\u5b57\u7b26\u7de8\u78bc (\u4fee\u6539 mysql \u6578\u64da\u5eab\u5b57\u7b26\u7de8\u78bc)"},"content":{"rendered":"<h1 id=\"%e5%a6%82%e4%bd%95%e4%bf%ae%e6%94%b9-mysql-%e6%95%b8%e6%93%9a%e5%ba%ab%e5%ad%97%e7%ac%a6%e7%b7%a8%e7%a2%bc-rtlEAgLPRi\">\u5982\u4f55\u4fee\u6539 MySQL \u6578\u64da\u5eab\u5b57\u7b26\u7de8\u78bc<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u6578\u64da\u9a45\u52d5\u4e16\u754c\u4e2d\uff0c\u6578\u64da\u5eab\u7684\u5b57\u7b26\u7de8\u78bc\u5c0d\u65bc\u78ba\u4fdd\u6578\u64da\u7684\u6b63\u78ba\u5b58\u5132\u548c\u6aa2\u7d22\u81f3\u95dc\u91cd\u8981\u3002MySQL \u662f\u4e00\u500b\u6d41\u884c\u7684\u958b\u6e90\u6578\u64da\u5eab\u7ba1\u7406\u7cfb\u7d71\uff0c\u652f\u6301\u591a\u7a2e\u5b57\u7b26\u7de8\u78bc\u3002\u672c\u6587\u5c07\u4ecb\u7d39\u5982\u4f55\u4fee\u6539 MySQL \u6578\u64da\u5eab\u7684\u5b57\u7b26\u7de8\u78bc\uff0c\u4ee5\u78ba\u4fdd\u6578\u64da\u7684\u6b63\u78ba\u6027\u548c\u517c\u5bb9\u6027\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%af%e5%ad%97%e7%ac%a6%e7%b7%a8%e7%a2%bc%ef%bc%9f-rtlEAgLPRi\">\u4ec0\u9ebc\u662f\u5b57\u7b26\u7de8\u78bc\uff1f<\/h2>\n<p>\u5b57\u7b26\u7de8\u78bc\u662f\u4e00\u7a2e\u5c07\u5b57\u7b26\u6620\u5c04\u5230\u6578\u5b57\u7684\u7cfb\u7d71\u3002\u4e0d\u540c\u7684\u5b57\u7b26\u7de8\u78bc\u53ef\u4ee5\u652f\u6301\u4e0d\u540c\u7684\u8a9e\u8a00\u548c\u7b26\u865f\u3002\u4f8b\u5982\uff0cUTF-8 \u662f\u4e00\u7a2e\u5ee3\u6cdb\u4f7f\u7528\u7684\u5b57\u7b26\u7de8\u78bc\uff0c\u80fd\u5920\u8868\u793a\u5e7e\u4e4e\u6240\u6709\u7684\u5b57\u7b26\uff0c\u5305\u62ec\u4e2d\u6587\u3001\u65e5\u6587\u548c\u5176\u4ed6\u8a9e\u8a00\u7684\u5b57\u7b26\u3002<\/p>\n<h2 id=\"%e7%82%ba%e4%bb%80%e9%ba%bc%e9%9c%80%e8%a6%81%e4%bf%ae%e6%94%b9%e5%ad%97%e7%ac%a6%e7%b7%a8%e7%a2%bc%ef%bc%9f-rtlEAgLPRi\">\u70ba\u4ec0\u9ebc\u9700\u8981\u4fee\u6539\u5b57\u7b26\u7de8\u78bc\uff1f<\/h2>\n<p>\u5728\u67d0\u4e9b\u60c5\u6cc1\u4e0b\uff0c\u60a8\u53ef\u80fd\u9700\u8981\u4fee\u6539 MySQL \u6578\u64da\u5eab\u7684\u5b57\u7b26\u7de8\u78bc\uff0c\u4f8b\u5982\uff1a<\/p>\n<ul>\n<li>\u7576\u60a8\u9700\u8981\u652f\u6301\u591a\u7a2e\u8a9e\u8a00\u6642\u3002<\/li>\n<li>\u7576\u60a8\u767c\u73fe\u6578\u64da\u5b58\u5132\u6216\u6aa2\u7d22\u6642\u51fa\u73fe\u4e82\u78bc\u3002<\/li>\n<li>\u7576\u60a8\u9700\u8981\u5c07\u6578\u64da\u5eab\u9077\u79fb\u5230\u53e6\u4e00\u500b\u7cfb\u7d71\uff0c\u4e26\u4e14\u8a72\u7cfb\u7d71\u4f7f\u7528\u4e0d\u540c\u7684\u5b57\u7b26\u7de8\u78bc\u3002<\/li>\n<\/ul>\n<h2 id=\"%e5%a6%82%e4%bd%95%e6%9f%a5%e7%9c%8b%e7%95%b6%e5%89%8d%e5%ad%97%e7%ac%a6%e7%b7%a8%e7%a2%bc-rtlEAgLPRi\">\u5982\u4f55\u67e5\u770b\u7576\u524d\u5b57\u7b26\u7de8\u78bc<\/h2>\n<p>\u5728\u4fee\u6539\u5b57\u7b26\u7de8\u78bc\u4e4b\u524d\uff0c\u9996\u5148\u9700\u8981\u67e5\u770b\u7576\u524d\u7684\u5b57\u7b26\u7de8\u78bc\u8a2d\u7f6e\u3002\u60a8\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b SQL \u67e5\u8a62\u4f86\u6aa2\u67e5\u6578\u64da\u5eab\u7684\u5b57\u7b26\u7de8\u78bc\uff1a<\/p>\n<pre><code>SHOW VARIABLES LIKE 'character_set%';<\/code><\/pre>\n<p>\u9019\u5c07\u986f\u793a MySQL \u4f3a\u670d\u5668\u7684\u5b57\u7b26\u96c6\u548c\u6392\u5e8f\u898f\u5247\uff0c\u5305\u62ec\uff1a<\/p>\n<ul>\n<li><code>character_set_client<\/code><\/li>\n<li><code>character_set_connection<\/code><\/li>\n<li><code>character_set_database<\/code><\/li>\n<li><code>character_set_results<\/code><\/li>\n<li><code>character_set_server<\/code><\/li>\n<\/ul>\n<h2 id=\"%e4%bf%ae%e6%94%b9%e6%95%b8%e6%93%9a%e5%ba%ab%e5%ad%97%e7%ac%a6%e7%b7%a8%e7%a2%bc-rtlEAgLPRi\">\u4fee\u6539\u6578\u64da\u5eab\u5b57\u7b26\u7de8\u78bc<\/h2>\n<p>\u8981\u4fee\u6539 MySQL \u6578\u64da\u5eab\u7684\u5b57\u7b26\u7de8\u78bc\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u6b65\u9a5f\uff1a<\/p>\n<h3 id=\"1-%e4%bf%ae%e6%94%b9%e6%95%b8%e6%93%9a%e5%ba%ab%e7%9a%84%e5%ad%97%e7%ac%a6%e7%b7%a8%e7%a2%bc-rtlEAgLPRi\">1. \u4fee\u6539\u6578\u64da\u5eab\u7684\u5b57\u7b26\u7de8\u78bc<\/h3>\n<p>\u4f7f\u7528\u4ee5\u4e0b SQL \u8a9e\u53e5\u4f86\u4fee\u6539\u6578\u64da\u5eab\u7684\u5b57\u7b26\u7de8\u78bc\uff1a<\/p>\n<pre><code>ALTER DATABASE your_database_name CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;<\/code><\/pre>\n<p>\u9019\u88e1\uff0c<code>your_database_name<\/code> \u662f\u60a8\u8981\u4fee\u6539\u7684\u6578\u64da\u5eab\u540d\u7a31\uff0c<code>utf8mb4<\/code> \u662f\u65b0\u7684\u5b57\u7b26\u7de8\u78bc\uff0c<code>utf8mb4_unicode_ci<\/code> \u662f\u65b0\u7684\u6392\u5e8f\u898f\u5247\u3002<\/p>\n<h3 id=\"2-%e4%bf%ae%e6%94%b9%e8%a1%a8%e7%9a%84%e5%ad%97%e7%ac%a6%e7%b7%a8%e7%a2%bc-rtlEAgLPRi\">2. \u4fee\u6539\u8868\u7684\u5b57\u7b26\u7de8\u78bc<\/h3>\n<p>\u63a5\u4e0b\u4f86\uff0c\u60a8\u9700\u8981\u4fee\u6539\u6578\u64da\u5eab\u4e2d\u6bcf\u500b\u8868\u7684\u5b57\u7b26\u7de8\u78bc\u3002\u4f7f\u7528\u4ee5\u4e0b SQL \u8a9e\u53e5\uff1a<\/p>\n<pre><code>ALTER TABLE your_table_name CONVERT TO CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;<\/code><\/pre>\n<p>\u9019\u88e1\uff0c<code>your_table_name<\/code> \u662f\u60a8\u8981\u4fee\u6539\u7684\u8868\u540d\u7a31\u3002<\/p>\n<h3 id=\"3-%e4%bf%ae%e6%94%b9%e5%88%97%e7%9a%84%e5%ad%97%e7%ac%a6%e7%b7%a8%e7%a2%bc-rtlEAgLPRi\">3. \u4fee\u6539\u5217\u7684\u5b57\u7b26\u7de8\u78bc<\/h3>\n<p>\u5982\u679c\u60a8\u9700\u8981\u4fee\u6539\u7279\u5b9a\u5217\u7684\u5b57\u7b26\u7de8\u78bc\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b SQL \u8a9e\u53e5\uff1a<\/p>\n<pre><code>ALTER TABLE your_table_name MODIFY your_column_name VARCHAR(255) CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;<\/code><\/pre>\n<p>\u9019\u88e1\uff0c<code>your_column_name<\/code> \u662f\u60a8\u8981\u4fee\u6539\u7684\u5217\u540d\u7a31\u3002<\/p>\n<h2 id=\"%e6%aa%a2%e6%9f%a5%e4%bf%ae%e6%94%b9%e7%b5%90%e6%9e%9c-rtlEAgLPRi\">\u6aa2\u67e5\u4fee\u6539\u7d50\u679c<\/h2>\n<p>\u5b8c\u6210\u4e0a\u8ff0\u6b65\u9a5f\u5f8c\uff0c\u60a8\u53ef\u4ee5\u518d\u6b21\u4f7f\u7528\u4ee5\u4e0b SQL \u67e5\u8a62\u4f86\u6aa2\u67e5\u6578\u64da\u5eab\u3001\u8868\u548c\u5217\u7684\u5b57\u7b26\u7de8\u78bc\u662f\u5426\u5df2\u6210\u529f\u4fee\u6539\uff1a<\/p>\n<pre><code>SHOW CREATE DATABASE your_database_name;<\/code><\/pre>\n<pre><code>SHOW CREATE TABLE your_table_name;<\/code><\/pre>\n<h2 id=\"%e7%b8%bd%e7%b5%90-rtlEAgLPRi\">\u7e3d\u7d50<\/h2>\n<p>\u4fee\u6539 MySQL \u6578\u64da\u5eab\u7684\u5b57\u7b26\u7de8\u78bc\u662f\u4e00\u500b\u91cd\u8981\u7684\u6b65\u9a5f\uff0c\u53ef\u4ee5\u78ba\u4fdd\u6578\u64da\u7684\u6b63\u78ba\u5b58\u5132\u548c\u6aa2\u7d22\u3002\u901a\u904e\u4e0a\u8ff0\u6b65\u9a5f\uff0c\u60a8\u53ef\u4ee5\u8f15\u9b06\u5730\u5c07\u6578\u64da\u5eab\u3001\u8868\u548c\u5217\u7684\u5b57\u7b26\u7de8\u78bc\u66f4\u6539\u70ba\u6240\u9700\u7684\u683c\u5f0f\u3002\u5982\u679c\u60a8\u5728\u5c0b\u627e\u9ad8\u6548\u7684\u6578\u64da\u5eab\u89e3\u6c7a\u65b9\u6848\uff0c\u8003\u616e\u4f7f\u7528 <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u670d\u52d9\uff0c\u9019\u5c07\u70ba\u60a8\u7684\u61c9\u7528\u63d0\u4f9b\u7a69\u5b9a\u7684\u652f\u6301\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e86\u89e3\u5982\u4f55\u4fee\u6539 MySQL \u6578\u64da\u5eab\u7684\u5b57\u7b26\u7de8\u78bc\uff0c\u78ba\u4fdd\u6578\u64da\u6b63\u78ba\u986f\u793a\uff0c\u63d0\u5347\u6578\u64da\u5eab\u7684\u517c\u5bb9\u6027\u8207\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-179202","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/179202","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=179202"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/179202\/revisions"}],"predecessor-version":[{"id":179203,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/179202\/revisions\/179203"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=179202"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=179202"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=179202"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}