{"id":162915,"date":"2024-11-04T19:05:59","date_gmt":"2024-11-04T11:05:59","guid":{"rendered":"https:\/\/server.hk\/cnblog\/162915\/"},"modified":"2024-11-04T19:06:00","modified_gmt":"2024-11-04T11:06:00","slug":"%e6%95%99%e6%82%a8%e5%a6%82%e4%bd%95%e5%b0%87%e4%b8%8d%e5%90%8c%e7%9a%84mysql%e5%ad%97%e7%ac%a6%e9%9b%86%e8%bd%89%e5%8c%96%e6%88%90%e7%b5%b1%e4%b8%80%e7%9a%84%e5%ad%97%e7%ac%a6%e9%9b%86","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/162915\/","title":{"rendered":"\u6559\u60a8\u5982\u4f55\u5c07\u4e0d\u540c\u7684MySQL\u5b57\u7b26\u96c6\u8f49\u5316\u6210\u7d71\u4e00\u7684\u5b57\u7b26\u96c6"},"content":{"rendered":"<h1 id=\"%e6%95%99%e6%82%a8%e5%a6%82%e4%bd%95%e5%b0%87%e4%b8%8d%e5%90%8c%e7%9a%84mysql%e5%ad%97%e7%ac%a6%e9%9b%86%e8%bd%89%e5%8c%96%e6%88%90%e7%b5%b1%e4%b8%80%e7%9a%84%e5%ad%97%e7%ac%a6%e9%9b%86-dAqUqwNdFc\">\u6559\u60a8\u5982\u4f55\u5c07\u4e0d\u540c\u7684MySQL\u5b57\u7b26\u96c6\u8f49\u5316\u6210\u7d71\u4e00\u7684\u5b57\u7b26\u96c6<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u6578\u64da\u9a45\u52d5\u4e16\u754c\u4e2d\uff0c\u6578\u64da\u7684\u5b58\u5132\u548c\u8655\u7406\u8b8a\u5f97\u8d8a\u4f86\u8d8a\u91cd\u8981\u3002MySQL\u4f5c\u70ba\u4e00\u500b\u6d41\u884c\u7684\u95dc\u4fc2\u578b\u6578\u64da\u5eab\u7ba1\u7406\u7cfb\u7d71\uff0c\u652f\u6301\u591a\u7a2e\u5b57\u7b26\u96c6\u3002\u7576\u6578\u64da\u4f86\u81ea\u4e0d\u540c\u7684\u4f86\u6e90\u6642\uff0c\u53ef\u80fd\u6703\u51fa\u73fe\u5b57\u7b26\u96c6\u4e0d\u4e00\u81f4\u7684\u60c5\u6cc1\uff0c\u9019\u6703\u5c0e\u81f4\u6578\u64da\u986f\u793a\u932f\u8aa4\u6216\u7121\u6cd5\u6b63\u78ba\u8655\u7406\u3002\u56e0\u6b64\uff0c\u5c07\u4e0d\u540c\u7684MySQL\u5b57\u7b26\u96c6\u8f49\u5316\u6210\u7d71\u4e00\u7684\u5b57\u7b26\u96c6\u662f\u975e\u5e38\u5fc5\u8981\u7684\u3002\u672c\u6587\u5c07\u4ecb\u7d39\u5982\u4f55\u9032\u884c\u9019\u4e00\u8f49\u5316\u904e\u7a0b\u3002<\/p>\n<h2 id=\"1-%e4%ba%86%e8%a7%a3mysql%e5%ad%97%e7%ac%a6%e9%9b%86-dAqUqwNdFc\">1. \u4e86\u89e3MySQL\u5b57\u7b26\u96c6<\/h2>\n<p>MySQL\u652f\u6301\u591a\u7a2e\u5b57\u7b26\u96c6\uff0c\u5305\u62ec\u4f46\u4e0d\u9650\u65bc\uff1a<\/p>\n<ul>\n<li>utf8mb4\uff1a\u652f\u6301\u6240\u6709Unicode\u5b57\u7b26\uff0c\u9069\u5408\u591a\u8a9e\u8a00\u61c9\u7528\u3002<\/li>\n<li>utf8\uff1a\u652f\u6301\u5927\u591a\u6578\u5e38\u7528\u5b57\u7b26\uff0c\u4f46\u4e0d\u652f\u6301\u67d0\u4e9b\u7279\u6b8a\u5b57\u7b26\u3002<\/li>\n<li>latin1\uff1a\u4e3b\u8981\u7528\u65bc\u897f\u6b50\u8a9e\u8a00\uff0c\u652f\u6301\u7684\u5b57\u7b26\u8f03\u5c11\u3002<\/li>\n<\/ul>\n<p>\u5728\u9032\u884c\u5b57\u7b26\u96c6\u8f49\u5316\u4e4b\u524d\uff0c\u9996\u5148\u9700\u8981\u4e86\u89e3\u7576\u524d\u6578\u64da\u5eab\u3001\u8868\u548c\u5217\u7684\u5b57\u7b26\u96c6\u8a2d\u7f6e\u3002\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0bSQL\u67e5\u8a62\u4f86\u6aa2\u67e5\u5b57\u7b26\u96c6\uff1a<\/p>\n<pre><code>SHOW VARIABLES LIKE 'character_set%';<\/code><\/pre>\n<h2 id=\"2-%e7%a2%ba%e5%ae%9a%e7%9b%ae%e6%a8%99%e5%ad%97%e7%ac%a6%e9%9b%86-dAqUqwNdFc\">2. \u78ba\u5b9a\u76ee\u6a19\u5b57\u7b26\u96c6<\/h2>\n<p>\u5728\u8f49\u5316\u5b57\u7b26\u96c6\u4e4b\u524d\uff0c\u60a8\u9700\u8981\u78ba\u5b9a\u4e00\u500b\u7d71\u4e00\u7684\u76ee\u6a19\u5b57\u7b26\u96c6\u3002\u901a\u5e38\uff0c\u5efa\u8b70\u4f7f\u7528utf8mb4\uff0c\u56e0\u70ba\u5b83\u652f\u6301\u6240\u6709Unicode\u5b57\u7b26\uff0c\u80fd\u5920\u8655\u7406\u591a\u8a9e\u8a00\u6578\u64da\u3002\u78ba\u5b9a\u76ee\u6a19\u5b57\u7b26\u96c6\u5f8c\uff0c\u60a8\u53ef\u4ee5\u958b\u59cb\u9032\u884c\u8f49\u5316\u3002<\/p>\n<h2 id=\"3-%e8%bd%89%e5%8c%96%e5%ad%97%e7%ac%a6%e9%9b%86%e7%9a%84%e6%ad%a5%e9%a9%9f-dAqUqwNdFc\">3. \u8f49\u5316\u5b57\u7b26\u96c6\u7684\u6b65\u9a5f<\/h2>\n<h3 id=\"3-1-%e8%bd%89%e5%8c%96%e6%95%b8%e6%93%9a%e5%ba%ab%e5%ad%97%e7%ac%a6%e9%9b%86-dAqUqwNdFc\">3.1. \u8f49\u5316\u6578\u64da\u5eab\u5b57\u7b26\u96c6<\/h3>\n<p>\u9996\u5148\uff0c\u60a8\u9700\u8981\u5c07\u6574\u500b\u6578\u64da\u5eab\u7684\u5b57\u7b26\u96c6\u8f49\u5316\u70ba\u76ee\u6a19\u5b57\u7b26\u96c6\u3002\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0bSQL\u547d\u4ee4\uff1a<\/p>\n<pre><code>ALTER DATABASE your_database_name CHARACTER SET = utf8mb4 COLLATE = utf8mb4_unicode_ci;<\/code><\/pre>\n<h3 id=\"3-2-%e8%bd%89%e5%8c%96%e8%a1%a8%e7%9a%84%e5%ad%97%e7%ac%a6%e9%9b%86-dAqUqwNdFc\">3.2. \u8f49\u5316\u8868\u7684\u5b57\u7b26\u96c6<\/h3>\n<p>\u63a5\u4e0b\u4f86\uff0c\u60a8\u9700\u8981\u8f49\u5316\u6578\u64da\u5eab\u4e2d\u6bcf\u500b\u8868\u7684\u5b57\u7b26\u96c6\u3002\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\uff1a<\/p>\n<pre><code>ALTER TABLE your_table_name CONVERT TO CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;<\/code><\/pre>\n<h3 id=\"3-3-%e8%bd%89%e5%8c%96%e5%88%97%e7%9a%84%e5%ad%97%e7%ac%a6%e9%9b%86-dAqUqwNdFc\">3.3. \u8f49\u5316\u5217\u7684\u5b57\u7b26\u96c6<\/h3>\n<p>\u5982\u679c\u67d0\u4e9b\u5217\u7684\u5b57\u7b26\u96c6\u8207\u8868\u7684\u5b57\u7b26\u96c6\u4e0d\u4e00\u81f4\uff0c\u60a8\u9700\u8981\u55ae\u7368\u8f49\u5316\u9019\u4e9b\u5217\u3002\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\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<h2 id=\"4-%e9%a9%97%e8%ad%89%e8%bd%89%e5%8c%96%e7%b5%90%e6%9e%9c-dAqUqwNdFc\">4. \u9a57\u8b49\u8f49\u5316\u7d50\u679c<\/h2>\n<p>\u5b8c\u6210\u5b57\u7b26\u96c6\u8f49\u5316\u5f8c\uff0c\u60a8\u9700\u8981\u9a57\u8b49\u8f49\u5316\u662f\u5426\u6210\u529f\u3002\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u67e5\u8a62\u4f86\u6aa2\u67e5\u8868\u548c\u5217\u7684\u5b57\u7b26\u96c6\uff1a<\/p>\n<pre><code>SHOW TABLE STATUS FROM your_database_name;<\/code><\/pre>\n<p>\u6b64\u5916\uff0c\u60a8\u9084\u53ef\u4ee5\u6aa2\u67e5\u7279\u5b9a\u5217\u7684\u5b57\u7b26\u96c6\uff1a<\/p>\n<pre><code>SHOW FULL COLUMNS FROM your_table_name;<\/code><\/pre>\n<h2 id=\"5-%e6%b3%a8%e6%84%8f%e4%ba%8b%e9%a0%85-dAqUqwNdFc\">5. \u6ce8\u610f\u4e8b\u9805<\/h2>\n<p>\u5728\u9032\u884c\u5b57\u7b26\u96c6\u8f49\u5316\u6642\uff0c\u8acb\u6ce8\u610f\u4ee5\u4e0b\u5e7e\u9ede\uff1a<\/p>\n<ul>\n<li>\u5728\u8f49\u5316\u4e4b\u524d\uff0c\u52d9\u5fc5\u5099\u4efd\u6578\u64da\uff0c\u4ee5\u9632\u6b62\u6578\u64da\u4e1f\u5931\u3002<\/li>\n<li>\u8f49\u5316\u904e\u7a0b\u53ef\u80fd\u9700\u8981\u4e00\u4e9b\u6642\u9593\uff0c\u5177\u9ad4\u53d6\u6c7a\u65bc\u6578\u64da\u91cf\u7684\u5927\u5c0f\u3002<\/li>\n<li>\u5728\u8f49\u5316\u5f8c\uff0c\u6e2c\u8a66\u61c9\u7528\u7a0b\u5e8f\u4ee5\u78ba\u4fdd\u5176\u6b63\u5e38\u904b\u884c\uff0c\u7279\u5225\u662f\u6d89\u53ca\u5230\u5b57\u7b26\u4e32\u8655\u7406\u7684\u90e8\u5206\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-dAqUqwNdFc\">\u7e3d\u7d50<\/h2>\n<p>\u5c07\u4e0d\u540c\u7684MySQL\u5b57\u7b26\u96c6\u8f49\u5316\u6210\u7d71\u4e00\u7684\u5b57\u7b26\u96c6\u662f\u4e00\u500b\u91cd\u8981\u7684\u904e\u7a0b\uff0c\u53ef\u4ee5\u78ba\u4fdd\u6578\u64da\u7684\u6b63\u78ba\u6027\u548c\u4e00\u81f4\u6027\u3002\u901a\u904e\u4e86\u89e3\u5b57\u7b26\u96c6\u3001\u78ba\u5b9a\u76ee\u6a19\u5b57\u7b26\u96c6\u3001\u57f7\u884c\u8f49\u5316\u6b65\u9a5f\u4ee5\u53ca\u9a57\u8b49\u7d50\u679c\uff0c\u60a8\u53ef\u4ee5\u6709\u6548\u5730\u7ba1\u7406\u6578\u64da\u5eab\u4e2d\u7684\u5b57\u7b26\u96c6\u554f\u984c\u3002\u5982\u679c\u60a8\u9700\u8981\u9032\u4e00\u6b65\u7684\u652f\u6301\u6216\u5c0b\u627e\u9ad8\u6548\u7684 <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5b78\u7fd2\u5982\u4f55\u5c07\u4e0d\u540c\u7684MySQL\u5b57\u7b26\u96c6\u8f49\u5316\u70ba\u7d71\u4e00\u5b57\u7b26\u96c6\uff0c\u78ba\u4fdd\u6578\u64da\u4e00\u81f4\u6027\u8207\u517c\u5bb9\u6027\uff0c\u63d0\u5347\u6578\u64da\u5eab\u7ba1\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-162915","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/162915","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=162915"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/162915\/revisions"}],"predecessor-version":[{"id":162916,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/162915\/revisions\/162916"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=162915"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=162915"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=162915"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}