{"id":160755,"date":"2024-11-04T00:44:29","date_gmt":"2024-11-03T16:44:29","guid":{"rendered":"https:\/\/server.hk\/cnblog\/160755\/"},"modified":"2024-11-04T00:44:30","modified_gmt":"2024-11-03T16:44:30","slug":"%e8%b3%87%e6%96%99%e5%ba%ab%e6%95%99%e7%a8%8b%ef%bc%9amysql%e6%9f%a5%e7%9c%8b%e5%ad%97%e5%85%83%e9%9b%86%e5%92%8c%e6%a0%a1%e5%b0%8d%e8%a6%8f%e5%89%87","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/160755\/","title":{"rendered":"\u8cc7\u6599\u5eab\u6559\u7a0b\uff1aMySQL\u67e5\u770b\u5b57\u5143\u96c6\u548c\u6821\u5c0d\u898f\u5247"},"content":{"rendered":"<h1 id=\"%e8%b3%87%e6%96%99%e5%ba%ab%e6%95%99%e7%a8%8b%ef%bc%9amysql%e6%9f%a5%e7%9c%8b%e5%ad%97%e5%85%83%e9%9b%86%e5%92%8c%e6%a0%a1%e5%b0%8d%e8%a6%8f%e5%89%87-JuIxIDSmiG\">\u8cc7\u6599\u5eab\u6559\u7a0b\uff1aMySQL\u67e5\u770b\u5b57\u5143\u96c6\u548c\u6821\u5c0d\u898f\u5247<\/h1>\n<p>\u5728\u73fe\u4eca\u7684\u6578\u64da\u9a45\u52d5\u4e16\u754c\u4e2d\uff0c\u8cc7\u6599\u5eab\u7684\u7ba1\u7406\u548c\u512a\u5316\u8b8a\u5f97\u8d8a\u4f86\u8d8a\u91cd\u8981\u3002MySQL\u4f5c\u70ba\u4e00\u500b\u6d41\u884c\u7684\u958b\u6e90\u8cc7\u6599\u5eab\u7ba1\u7406\u7cfb\u7d71\uff0c\u5ee3\u6cdb\u61c9\u7528\u65bc\u5404\u7a2e\u61c9\u7528\u7a0b\u5f0f\u4e2d\u3002\u4e86\u89e3MySQL\u7684\u5b57\u5143\u96c6\u548c\u6821\u5c0d\u898f\u5247\u5c0d\u65bc\u78ba\u4fdd\u8cc7\u6599\u7684\u6b63\u78ba\u6027\u548c\u4e00\u81f4\u6027\u81f3\u95dc\u91cd\u8981\u3002\u672c\u6587\u5c07\u4ecb\u7d39\u5982\u4f55\u67e5\u770bMySQL\u7684\u5b57\u5143\u96c6\u548c\u6821\u5c0d\u898f\u5247\uff0c\u4e26\u63d0\u4f9b\u76f8\u95dc\u7684\u7bc4\u4f8b\u548c\u6307\u4ee4\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%af%e5%ad%97%e5%85%83%e9%9b%86%e5%92%8c%e6%a0%a1%e5%b0%8d%e8%a6%8f%e5%89%87%ef%bc%9f-JuIxIDSmiG\">\u4ec0\u9ebc\u662f\u5b57\u5143\u96c6\u548c\u6821\u5c0d\u898f\u5247\uff1f<\/h2>\n<p>\u5b57\u5143\u96c6\uff08Character Set\uff09\u662f\u6307\u4e00\u7d44\u53ef\u7528\u65bc\u5132\u5b58\u8cc7\u6599\u7684\u5b57\u5143\uff0c\u800c\u6821\u5c0d\u898f\u5247\uff08Collation\uff09\u5247\u662f\u5b9a\u7fa9\u5982\u4f55\u6bd4\u8f03\u548c\u6392\u5e8f\u9019\u4e9b\u5b57\u5143\u7684\u898f\u5247\u3002MySQL\u652f\u6301\u591a\u7a2e\u5b57\u5143\u96c6\u548c\u6821\u5c0d\u898f\u5247\uff0c\u9019\u4f7f\u5f97\u5b83\u80fd\u5920\u8655\u7406\u4e0d\u540c\u8a9e\u8a00\u548c\u6587\u5316\u7684\u8cc7\u6599\u3002<\/p>\n<h2 id=\"%e6%9f%a5%e7%9c%8bmysql%e7%9a%84%e5%ad%97%e5%85%83%e9%9b%86%e5%92%8c%e6%a0%a1%e5%b0%8d%e8%a6%8f%e5%89%87-JuIxIDSmiG\">\u67e5\u770bMySQL\u7684\u5b57\u5143\u96c6\u548c\u6821\u5c0d\u898f\u5247<\/h2>\n<p>\u8981\u67e5\u770bMySQL\u7684\u5b57\u5143\u96c6\u548c\u6821\u5c0d\u898f\u5247\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u5e7e\u500b\u6307\u4ee4\uff1a<\/p>\n<h3 id=\"1-%e6%9f%a5%e7%9c%8b%e5%85%a8%e5%b1%80%e5%ad%97%e5%85%83%e9%9b%86%e5%92%8c%e6%a0%a1%e5%b0%8d%e8%a6%8f%e5%89%87-JuIxIDSmiG\">1. \u67e5\u770b\u5168\u5c40\u5b57\u5143\u96c6\u548c\u6821\u5c0d\u898f\u5247<\/h3>\n<pre><code>SHOW VARIABLES LIKE 'character_set%';<\/code><\/pre>\n<p>\u9019\u500b\u6307\u4ee4\u5c07\u986f\u793aMySQL\u4f3a\u670d\u5668\u7684\u5168\u5c40\u5b57\u5143\u96c6\u8a2d\u7f6e\uff0c\u5305\u62ec\uff1a<\/p>\n<ul>\n<li><strong>character_set_server<\/strong>\uff1a\u4f3a\u670d\u5668\u7684\u5b57\u5143\u96c6\u3002<\/li>\n<li><strong>character_set_database<\/strong>\uff1a\u7576\u524d\u8cc7\u6599\u5eab\u7684\u5b57\u5143\u96c6\u3002<\/li>\n<li><strong>character_set_client<\/strong>\uff1a\u5ba2\u6236\u7aef\u7684\u5b57\u5143\u96c6\u3002<\/li>\n<li><strong>character_set_connection<\/strong>\uff1a\u9023\u63a5\u7684\u5b57\u5143\u96c6\u3002<\/li>\n<li><strong>character_set_results<\/strong>\uff1a\u67e5\u8a62\u7d50\u679c\u7684\u5b57\u5143\u96c6\u3002<\/li>\n<\/ul>\n<h3 id=\"2-%e6%9f%a5%e7%9c%8b%e5%85%a8%e5%b1%80%e6%a0%a1%e5%b0%8d%e8%a6%8f%e5%89%87-JuIxIDSmiG\">2. \u67e5\u770b\u5168\u5c40\u6821\u5c0d\u898f\u5247<\/h3>\n<pre><code>SHOW VARIABLES LIKE 'collation%';<\/code><\/pre>\n<p>\u9019\u500b\u6307\u4ee4\u5c07\u986f\u793aMySQL\u4f3a\u670d\u5668\u7684\u5168\u5c40\u6821\u5c0d\u898f\u5247\uff0c\u5305\u62ec\uff1a<\/p>\n<ul>\n<li><strong>collation_server<\/strong>\uff1a\u4f3a\u670d\u5668\u7684\u6821\u5c0d\u898f\u5247\u3002<\/li>\n<li><strong>collation_database<\/strong>\uff1a\u7576\u524d\u8cc7\u6599\u5eab\u7684\u6821\u5c0d\u898f\u5247\u3002<\/li>\n<li><strong>collation_connection<\/strong>\uff1a\u9023\u63a5\u7684\u6821\u5c0d\u898f\u5247\u3002<\/li>\n<\/ul>\n<h3 id=\"3-%e6%9f%a5%e7%9c%8b%e7%89%b9%e5%ae%9a%e8%b3%87%e6%96%99%e5%ba%ab%e7%9a%84%e5%ad%97%e5%85%83%e9%9b%86%e5%92%8c%e6%a0%a1%e5%b0%8d%e8%a6%8f%e5%89%87-JuIxIDSmiG\">3. \u67e5\u770b\u7279\u5b9a\u8cc7\u6599\u5eab\u7684\u5b57\u5143\u96c6\u548c\u6821\u5c0d\u898f\u5247<\/h3>\n<p>\u5982\u679c\u60a8\u60f3\u67e5\u770b\u7279\u5b9a\u8cc7\u6599\u5eab\u7684\u5b57\u5143\u96c6\u548c\u6821\u5c0d\u898f\u5247\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u6307\u4ee4\uff1a<\/p>\n<pre><code>SELECT default_character_set_name, default_collation_name \nFROM information_schema.SCHEMATA \nWHERE schema_name = 'your_database_name';<\/code><\/pre>\n<p>\u8acb\u5c07 <code>your_database_name<\/code> \u66ff\u63db\u70ba\u60a8\u8981\u67e5\u8a62\u7684\u8cc7\u6599\u5eab\u540d\u7a31\u3002<\/p>\n<h3 id=\"4-%e6%9f%a5%e7%9c%8b%e7%89%b9%e5%ae%9a%e8%b3%87%e6%96%99%e8%a1%a8%e7%9a%84%e5%ad%97%e5%85%83%e9%9b%86%e5%92%8c%e6%a0%a1%e5%b0%8d%e8%a6%8f%e5%89%87-JuIxIDSmiG\">4. \u67e5\u770b\u7279\u5b9a\u8cc7\u6599\u8868\u7684\u5b57\u5143\u96c6\u548c\u6821\u5c0d\u898f\u5247<\/h3>\n<p>\u8981\u67e5\u770b\u7279\u5b9a\u8cc7\u6599\u8868\u7684\u5b57\u5143\u96c6\u548c\u6821\u5c0d\u898f\u5247\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u6307\u4ee4\uff1a<\/p>\n<pre><code>SHOW TABLE STATUS LIKE 'your_table_name';<\/code><\/pre>\n<p>\u9019\u5c07\u986f\u793a\u8a72\u8cc7\u6599\u8868\u7684\u5b57\u5143\u96c6\u548c\u6821\u5c0d\u898f\u5247\u3002<\/p>\n<h2 id=\"%e5%a6%82%e4%bd%95%e6%9b%b4%e6%94%b9%e5%ad%97%e5%85%83%e9%9b%86%e5%92%8c%e6%a0%a1%e5%b0%8d%e8%a6%8f%e5%89%87-JuIxIDSmiG\">\u5982\u4f55\u66f4\u6539\u5b57\u5143\u96c6\u548c\u6821\u5c0d\u898f\u5247<\/h2>\n<p>\u5982\u679c\u60a8\u9700\u8981\u66f4\u6539\u8cc7\u6599\u5eab\u6216\u8cc7\u6599\u8868\u7684\u5b57\u5143\u96c6\u548c\u6821\u5c0d\u898f\u5247\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u6307\u4ee4\uff1a<\/p>\n<h3 id=\"%e6%9b%b4%e6%94%b9%e8%b3%87%e6%96%99%e5%ba%ab%e7%9a%84%e5%ad%97%e5%85%83%e9%9b%86%e5%92%8c%e6%a0%a1%e5%b0%8d%e8%a6%8f%e5%89%87-JuIxIDSmiG\">\u66f4\u6539\u8cc7\u6599\u5eab\u7684\u5b57\u5143\u96c6\u548c\u6821\u5c0d\u898f\u5247<\/h3>\n<pre><code>ALTER DATABASE your_database_name \nCHARACTER SET utf8mb4 \nCOLLATE utf8mb4_unicode_ci;<\/code><\/pre>\n<h3 id=\"%e6%9b%b4%e6%94%b9%e8%b3%87%e6%96%99%e8%a1%a8%e7%9a%84%e5%ad%97%e5%85%83%e9%9b%86%e5%92%8c%e6%a0%a1%e5%b0%8d%e8%a6%8f%e5%89%87-JuIxIDSmiG\">\u66f4\u6539\u8cc7\u6599\u8868\u7684\u5b57\u5143\u96c6\u548c\u6821\u5c0d\u898f\u5247<\/h3>\n<pre><code>ALTER TABLE your_table_name \nCONVERT TO CHARACTER SET utf8mb4 \nCOLLATE utf8mb4_unicode_ci;<\/code><\/pre>\n<p>\u9019\u4e9b\u6307\u4ee4\u5c07\u8cc7\u6599\u5eab\u6216\u8cc7\u6599\u8868\u7684\u5b57\u5143\u96c6\u66f4\u6539\u70ba <code>utf8mb4<\/code>\uff0c\u9019\u662f\u4e00\u500b\u652f\u6301\u591a\u7a2e\u8a9e\u8a00\u7684\u5b57\u5143\u96c6\uff0c\u4e26\u4e14\u80fd\u5920\u8655\u7406Emoji\u7b49\u7279\u6b8a\u5b57\u5143\u3002<\/p>\n<h2 id=\"%e7%b8%bd%e7%b5%90-JuIxIDSmiG\">\u7e3d\u7d50<\/h2>\n<p>\u4e86\u89e3MySQL\u7684\u5b57\u5143\u96c6\u548c\u6821\u5c0d\u898f\u5247\u5c0d\u65bc\u8cc7\u6599\u5eab\u7684\u7ba1\u7406\u81f3\u95dc\u91cd\u8981\u3002\u901a\u904e\u4e0a\u8ff0\u6307\u4ee4\uff0c\u60a8\u53ef\u4ee5\u8f15\u9b06\u67e5\u770b\u548c\u66f4\u6539\u5b57\u5143\u96c6\u53ca\u6821\u5c0d\u898f\u5247\uff0c\u4ee5\u78ba\u4fdd\u8cc7\u6599\u7684\u6b63\u78ba\u6027\u548c\u4e00\u81f4\u6027\u3002\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u9ad8\u6548\u7684 <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u89e3\u6c7a\u65b9\u6848\uff0cServer.HK \u63d0\u4f9b\u591a\u7a2e\u9078\u64c7\uff0c\u6eff\u8db3\u4e0d\u540c\u9700\u6c42\u7684\u5ba2\u6236\u3002\u7121\u8ad6\u662f\u8cc7\u6599\u5eab\u7ba1\u7406\u9084\u662f\u7db2\u7ad9\u6258\u7ba1\uff0c\u6211\u5011\u7684 <a href=\"https:\/\/server.hk\">\u4f3a\u670d\u5668<\/a> \u90fd\u80fd\u70ba\u60a8\u63d0\u4f9b\u7a69\u5b9a\u7684\u652f\u6301\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5b78\u7fd2\u5982\u4f55\u5728MySQL\u4e2d\u67e5\u770b\u5b57\u5143\u96c6\u548c\u6821\u5c0d\u898f\u5247\uff0c\u638c\u63e1\u8cc7\u6599\u5eab\u7ba1\u7406\u7684\u95dc\u9375\u6280\u5de7\uff0c\u63d0\u5347\u6578\u64da\u8655\u7406\u6548\u7387\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-160755","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/160755","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=160755"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/160755\/revisions"}],"predecessor-version":[{"id":160756,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/160755\/revisions\/160756"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=160755"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=160755"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=160755"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}