{"id":179710,"date":"2024-11-09T04:09:16","date_gmt":"2024-11-08T20:09:16","guid":{"rendered":"https:\/\/server.hk\/cnblog\/179710\/"},"modified":"2024-11-09T04:09:17","modified_gmt":"2024-11-08T20:09:17","slug":"%e5%a6%82%e4%bd%95%e5%9c%a8-sql-%e6%95%b8%e6%93%9a%e5%ba%ab%e4%b8%ad%e6%ad%a3%e7%a2%ba%e5%9c%b0%e5%af%ab%e5%85%a5%e4%b8%ad%e6%96%87%e6%95%b8%e6%93%9a-sql-%e6%95%b8%e6%93%9a%e5%ba%ab%e5%af%ab%e5%85%a5","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/179710\/","title":{"rendered":"\u5982\u4f55\u5728 SQL \u6578\u64da\u5eab\u4e2d\u6b63\u78ba\u5730\u5beb\u5165\u4e2d\u6587\u6578\u64da (sql \u6578\u64da\u5eab\u5beb\u5165\u4e2d\u6587)"},"content":{"rendered":"<h1 id=\"%e5%a6%82%e4%bd%95%e5%9c%a8-sql-%e6%95%b8%e6%93%9a%e5%ba%ab%e4%b8%ad%e6%ad%a3%e7%a2%ba%e5%9c%b0%e5%af%ab%e5%85%a5%e4%b8%ad%e6%96%87%e6%95%b8%e6%93%9a-yYiYrFQFgo\">\u5982\u4f55\u5728 SQL \u6578\u64da\u5eab\u4e2d\u6b63\u78ba\u5730\u5beb\u5165\u4e2d\u6587\u6578\u64da<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u6578\u64da\u9a45\u52d5\u6642\u4ee3\uff0c\u8a31\u591a\u61c9\u7528\u7a0b\u5e8f\u9700\u8981\u8655\u7406\u591a\u8a9e\u8a00\u6578\u64da\uff0c\u5c24\u5176\u662f\u4e2d\u6587\u6578\u64da\u3002\u5c0d\u65bc\u4f7f\u7528 SQL \u6578\u64da\u5eab\u7684\u958b\u767c\u8005\u4f86\u8aaa\uff0c\u6b63\u78ba\u5730\u5beb\u5165\u548c\u5b58\u5132\u4e2d\u6587\u6578\u64da\u662f\u81f3\u95dc\u91cd\u8981\u7684\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5982\u4f55\u5728 SQL \u6578\u64da\u5eab\u4e2d\u6b63\u78ba\u5730\u5beb\u5165\u4e2d\u6587\u6578\u64da\uff0c\u5305\u62ec\u5b57\u7b26\u96c6\u7684\u9078\u64c7\u3001\u6578\u64da\u5eab\u8a2d\u7f6e\u4ee5\u53ca\u5be6\u969b\u7684\u5beb\u5165\u793a\u4f8b\u3002<\/p>\n<h2 id=\"1-%e9%81%b8%e6%93%87%e5%90%88%e9%81%a9%e7%9a%84%e5%ad%97%e7%ac%a6%e9%9b%86-yYiYrFQFgo\">1. \u9078\u64c7\u5408\u9069\u7684\u5b57\u7b26\u96c6<\/h2>\n<p>\u5728 SQL \u6578\u64da\u5eab\u4e2d\uff0c\u5b57\u7b26\u96c6\u6c7a\u5b9a\u4e86\u5982\u4f55\u5b58\u5132\u548c\u8655\u7406\u6587\u672c\u6578\u64da\u3002\u5c0d\u65bc\u4e2d\u6587\u6578\u64da\uff0c\u5efa\u8b70\u4f7f\u7528 UTF-8 \u6216 UTF-16 \u5b57\u7b26\u96c6\u3002\u9019\u5169\u7a2e\u5b57\u7b26\u96c6\u90fd\u80fd\u5920\u652f\u6301\u591a\u7a2e\u8a9e\u8a00\u7684\u5b57\u7b26\uff0c\u5305\u62ec\u4e2d\u6587\u3002<\/p>\n<ul>\n<li><strong>UTF-8\uff1a<\/strong>\u9019\u662f\u4e00\u7a2e\u8b8a\u9577\u7684\u5b57\u7b26\u7de8\u78bc\uff0c\u80fd\u5920\u6709\u6548\u5730\u5b58\u5132 ASCII \u5b57\u7b26\u548c\u5176\u4ed6\u8a9e\u8a00\u7684\u5b57\u7b26\u3002\u5c0d\u65bc\u5927\u591a\u6578\u61c9\u7528\u4f86\u8aaa\uff0cUTF-8 \u662f\u4e00\u500b\u7406\u60f3\u7684\u9078\u64c7\u3002<\/li>\n<li><strong>UTF-16\uff1a<\/strong>\u9019\u7a2e\u7de8\u78bc\u65b9\u5f0f\u901a\u5e38\u7528\u65bc\u9700\u8981\u8655\u7406\u5927\u91cf\u975e\u62c9\u4e01\u5b57\u7b26\u7684\u61c9\u7528\uff0c\u4f46\u5728\u5b58\u5132\u7a7a\u9593\u4e0a\u53ef\u80fd\u6703\u6bd4 UTF-8 \u66f4\u4f54\u7528\u8cc7\u6e90\u3002<\/li>\n<\/ul>\n<h2 id=\"2-%e6%95%b8%e6%93%9a%e5%ba%ab%e8%a8%ad%e7%bd%ae-yYiYrFQFgo\">2. \u6578\u64da\u5eab\u8a2d\u7f6e<\/h2>\n<p>\u5728\u5275\u5efa\u6578\u64da\u5eab\u6642\uff0c\u5fc5\u9808\u6307\u5b9a\u5b57\u7b26\u96c6\u548c\u6392\u5e8f\u898f\u5247\u3002\u4ee5\u4e0b\u662f\u4f7f\u7528 MySQL \u5275\u5efa\u652f\u6301\u4e2d\u6587\u7684\u6578\u64da\u5eab\u7684\u793a\u4f8b\uff1a<\/p>\n<pre><code>CREATE DATABASE mydatabase CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;<\/code><\/pre>\n<p>\u5728\u9019\u500b\u793a\u4f8b\u4e2d\uff0c\u4f7f\u7528\u4e86 utf8mb4 \u5b57\u7b26\u96c6\uff0c\u9019\u662f UTF-8 \u7684\u4e00\u500b\u64f4\u5c55\u7248\u672c\uff0c\u80fd\u5920\u652f\u6301\u6240\u6709 Unicode \u5b57\u7b26\uff0c\u5305\u62ec\u8868\u60c5\u7b26\u865f\u3002<\/p>\n<h2 id=\"3-%e8%a1%a8%e5%92%8c%e5%88%97%e7%9a%84%e8%a8%ad%e7%bd%ae-yYiYrFQFgo\">3. \u8868\u548c\u5217\u7684\u8a2d\u7f6e<\/h2>\n<p>\u5728\u5275\u5efa\u8868\u6642\uff0c\u78ba\u4fdd\u6bcf\u500b\u9700\u8981\u5b58\u5132\u4e2d\u6587\u7684\u5217\u90fd\u4f7f\u7528\u6b63\u78ba\u7684\u5b57\u7b26\u96c6\u3002\u4f8b\u5982\uff1a<\/p>\n<pre><code>CREATE TABLE mytable (\n    id INT AUTO_INCREMENT PRIMARY KEY,\n    name VARCHAR(100) CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci\n);<\/code><\/pre>\n<p>\u9019\u6a23\u8a2d\u7f6e\u5f8c\uff0c`name` \u5217\u5c31\u80fd\u5920\u6b63\u78ba\u5730\u5b58\u5132\u4e2d\u6587\u5b57\u7b26\u3002<\/p>\n<h2 id=\"4-%e5%af%ab%e5%85%a5%e4%b8%ad%e6%96%87%e6%95%b8%e6%93%9a-yYiYrFQFgo\">4. \u5beb\u5165\u4e2d\u6587\u6578\u64da<\/h2>\n<p>\u5728\u5beb\u5165\u4e2d\u6587\u6578\u64da\u6642\uff0c\u78ba\u4fdd\u4f60\u7684\u61c9\u7528\u7a0b\u5e8f\u6216\u6578\u64da\u5eab\u5ba2\u6236\u7aef\u4f7f\u7528\u6b63\u78ba\u7684\u5b57\u7b26\u96c6\u9032\u884c\u9023\u63a5\u3002\u4ee5\u4e0b\u662f\u4f7f\u7528 SQL \u8a9e\u53e5\u63d2\u5165\u4e2d\u6587\u6578\u64da\u7684\u793a\u4f8b\uff1a<\/p>\n<pre><code>INSERT INTO mytable (name) VALUES ('\u5f35\u4e09');<\/code><\/pre>\n<p>\u5728\u57f7\u884c\u9019\u689d\u8a9e\u53e5\u4e4b\u524d\uff0c\u8acb\u78ba\u4fdd\u4f60\u7684\u6578\u64da\u5eab\u9023\u63a5\u4f7f\u7528\u4e86 UTF-8 \u7de8\u78bc\u3002\u9019\u53ef\u4ee5\u901a\u904e\u8a2d\u7f6e\u9023\u63a5\u5b57\u7b26\u4e32\u4f86\u5be6\u73fe\uff0c\u4f8b\u5982\uff1a<\/p>\n<pre><code>mysql --default-character-set=utf8mb4 -u username -p<\/code><\/pre>\n<h2 id=\"5-%e9%a9%97%e8%ad%89%e6%95%b8%e6%93%9a%e7%9a%84%e6%ad%a3%e7%a2%ba%e6%80%a7-yYiYrFQFgo\">5. \u9a57\u8b49\u6578\u64da\u7684\u6b63\u78ba\u6027<\/h2>\n<p>\u5beb\u5165\u6578\u64da\u5f8c\uff0c\u61c9\u8a72\u6aa2\u67e5\u6578\u64da\u662f\u5426\u6b63\u78ba\u5b58\u5132\u3002\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u67e5\u8a62\u4f86\u6aa2\u7d22\u6578\u64da\uff1a<\/p>\n<pre><code>SELECT * FROM mytable;<\/code><\/pre>\n<p>\u5982\u679c\u6578\u64da\u986f\u793a\u6b63\u5e38\uff0c\u5247\u8868\u793a\u4e2d\u6587\u6578\u64da\u5df2\u6210\u529f\u5beb\u5165\u3002<\/p>\n<h2 id=\"%e7%b8%bd%e7%b5%90-yYiYrFQFgo\">\u7e3d\u7d50<\/h2>\n<p>\u5728 SQL \u6578\u64da\u5eab\u4e2d\u6b63\u78ba\u5730\u5beb\u5165\u4e2d\u6587\u6578\u64da\u9700\u8981\u9078\u64c7\u5408\u9069\u7684\u5b57\u7b26\u96c6\u3001\u6b63\u78ba\u8a2d\u7f6e\u6578\u64da\u5eab\u548c\u8868\u7684\u5b57\u7b26\u96c6\uff0c\u4ee5\u53ca\u78ba\u4fdd\u5728\u5beb\u5165\u6578\u64da\u6642\u4f7f\u7528\u6b63\u78ba\u7684\u7de8\u78bc\u3002\u9019\u4e9b\u6b65\u9a5f\u80fd\u5920\u5e6b\u52a9\u958b\u767c\u8005\u6709\u6548\u5730\u8655\u7406\u4e2d\u6587\u6578\u64da\uff0c\u907f\u514d\u51fa\u73fe\u4e82\u78bc\u6216\u6578\u64da\u4e1f\u5931\u7684\u554f\u984c\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u6548\u6578\u64da\u8655\u7406\u7684\u61c9\u7528\uff0c\u9078\u64c7\u5408\u9069\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u65b9\u6848\u4e5f\u662f\u4e00\u500b\u91cd\u8981\u7684\u8003\u91cf\uff0c\u7279\u5225\u662f\u5728\u9999\u6e2f\u9019\u6a23\u7684\u591a\u8a9e\u8a00\u74b0\u5883\u4e2d\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5b78\u7fd2\u5982\u4f55\u5728 SQL \u6578\u64da\u5eab\u4e2d\u6b63\u78ba\u5beb\u5165\u4e2d\u6587\u6578\u64da\uff0c\u78ba\u4fdd\u5b57\u7b26\u7de8\u78bc\u548c\u6578\u64da\u985e\u578b\u8a2d\u7f6e\u6b63\u78ba\uff0c\u907f\u514d\u6578\u64da\u640d\u58de\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-179710","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/179710","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=179710"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/179710\/revisions"}],"predecessor-version":[{"id":179711,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/179710\/revisions\/179711"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=179710"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=179710"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=179710"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}