{"id":183144,"date":"2024-11-10T02:22:18","date_gmt":"2024-11-09T18:22:18","guid":{"rendered":"https:\/\/server.hk\/cnblog\/183144\/"},"modified":"2024-11-10T02:22:19","modified_gmt":"2024-11-09T18:22:19","slug":"%e5%af%a6%e7%8f%besql-server-2008-r2%e6%8e%a1%e7%94%a8varchar%e5%ad%97%e6%ae%b5%e9%a1%9e%e5%9e%8b%e4%b8%ad%e6%96%87%e4%ba%82%e7%a2%bc","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/183144\/","title":{"rendered":"\u5be6\u73feSQL Server 2008 R2\u63a1\u7528varchar\u5b57\u6bb5\u985e\u578b\u4e2d\u6587\u4e82\u78bc"},"content":{"rendered":"<h1 id=\"%e5%af%a6%e7%8f%besql-server-2008-r2%e6%8e%a1%e7%94%a8varchar%e5%ad%97%e6%ae%b5%e9%a1%9e%e5%9e%8b%e4%b8%ad%e6%96%87%e4%ba%82%e7%a2%bc-PcWThoFPbV\">\u5be6\u73feSQL Server 2008 R2\u63a1\u7528varchar\u5b57\u6bb5\u985e\u578b\u4e2d\u6587\u4e82\u78bc<\/h1>\n<p>\u5728\u4f7f\u7528SQL Server 2008 R2\u9032\u884c\u6578\u64da\u5eab\u7ba1\u7406\u6642\uff0c\u8a31\u591a\u958b\u767c\u8005\u53ef\u80fd\u6703\u9047\u5230\u4e2d\u6587\u4e82\u78bc\u7684\u554f\u984c\u3002\u9019\u901a\u5e38\u662f\u7531\u65bc\u5b57\u7b26\u96c6\u4e0d\u5339\u914d\u6216\u6578\u64da\u985e\u578b\u9078\u64c7\u4e0d\u7576\u6240\u5c0e\u81f4\u7684\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5982\u4f55\u6709\u6548\u5730\u89e3\u6c7a\u9019\u4e00\u554f\u984c\uff0c\u4e26\u63d0\u4f9b\u4e00\u4e9b\u5be6\u7528\u7684\u5efa\u8b70\u548c\u793a\u4f8b\u4ee3\u78bc\u3002<\/p>\n<h2 id=\"%e7%82%ba%e4%bd%95%e6%9c%83%e5%87%ba%e7%8f%be%e4%b8%ad%e6%96%87%e4%ba%82%e7%a2%bc-PcWThoFPbV\">\u70ba\u4f55\u6703\u51fa\u73fe\u4e2d\u6587\u4e82\u78bc<\/h2>\n<p>\u4e2d\u6587\u4e82\u78bc\u7684\u51fa\u73fe\u901a\u5e38\u8207\u4ee5\u4e0b\u5e7e\u500b\u56e0\u7d20\u6709\u95dc\uff1a<\/p>\n<ul>\n<li><strong>\u5b57\u7b26\u96c6\u4e0d\u5339\u914d\uff1a<\/strong>\u5982\u679c\u6578\u64da\u5eab\u7684\u5b57\u7b26\u96c6\u8a2d\u7f6e\u4e0d\u652f\u6301\u4e2d\u6587\u5b57\u7b26\uff0c\u5247\u5728\u5b58\u5132\u6216\u6aa2\u7d22\u6578\u64da\u6642\u53ef\u80fd\u6703\u51fa\u73fe\u4e82\u78bc\u3002<\/li>\n<li><strong>\u6578\u64da\u985e\u578b\u9078\u64c7\u4e0d\u7576\uff1a<\/strong>\u4f7f\u7528varchar\u985e\u578b\u5b58\u5132\u4e2d\u6587\u5b57\u7b26\u6642\uff0c\u53ef\u80fd\u6703\u56e0\u70ba\u5176\u4e0d\u652f\u6301Unicode\u800c\u5c0e\u81f4\u4e82\u78bc\u3002\u76f8\u5c0d\u800c\u8a00\uff0cnvarchar\u985e\u578b\u5247\u80fd\u5920\u6b63\u78ba\u5b58\u5132\u4e2d\u6587\u5b57\u7b26\u3002<\/li>\n<li><strong>\u6578\u64da\u5eab\u9023\u63a5\u8a2d\u7f6e\uff1a<\/strong>\u5982\u679c\u5728\u9023\u63a5\u6578\u64da\u5eab\u6642\u672a\u6b63\u78ba\u8a2d\u7f6e\u5b57\u7b26\u96c6\uff0c\u4e5f\u53ef\u80fd\u5c0e\u81f4\u4e82\u78bc\u554f\u984c\u3002<\/li>\n<\/ul>\n<h2 id=\"%e8%a7%a3%e6%b1%ba%e6%96%b9%e6%a1%88-PcWThoFPbV\">\u89e3\u6c7a\u65b9\u6848<\/h2>\n<p>\u70ba\u4e86\u89e3\u6c7aSQL Server 2008 R2\u4e2dvarchar\u5b57\u6bb5\u985e\u578b\u5c0e\u81f4\u7684\u4e2d\u6587\u4e82\u78bc\u554f\u984c\uff0c\u53ef\u4ee5\u8003\u616e\u4ee5\u4e0b\u5e7e\u7a2e\u65b9\u6cd5\uff1a<\/p>\n<h3 id=\"1-%e4%bd%bf%e7%94%a8nvarchar%e6%95%b8%e6%93%9a%e9%a1%9e%e5%9e%8b-PcWThoFPbV\">1. \u4f7f\u7528nvarchar\u6578\u64da\u985e\u578b<\/h3>\n<p>\u6700\u76f4\u63a5\u7684\u89e3\u6c7a\u65b9\u6848\u662f\u5c07varchar\u5b57\u6bb5\u66f4\u6539\u70banvarchar\u5b57\u6bb5\u3002nvarchar\u5b57\u6bb5\u652f\u6301Unicode\u5b57\u7b26\u96c6\uff0c\u80fd\u5920\u6b63\u78ba\u5b58\u5132\u4e2d\u6587\u5b57\u7b26\u3002\u4ee5\u4e0b\u662f\u5982\u4f55\u4fee\u6539\u5b57\u6bb5\u985e\u578b\u7684\u793a\u4f8b\uff1a<\/p>\n<pre><code>ALTER TABLE your_table_name\nALTER COLUMN your_column_name NVARCHAR(255);\n<\/code><\/pre>\n<h3 id=\"2-%e7%a2%ba%e4%bf%9d%e6%95%b8%e6%93%9a%e5%ba%ab%e7%9a%84%e5%ad%97%e7%ac%a6%e9%9b%86%e8%a8%ad%e7%bd%ae%e6%ad%a3%e7%a2%ba-PcWThoFPbV\">2. \u78ba\u4fdd\u6578\u64da\u5eab\u7684\u5b57\u7b26\u96c6\u8a2d\u7f6e\u6b63\u78ba<\/h3>\n<p>\u5728\u5275\u5efa\u6578\u64da\u5eab\u6642\uff0c\u61c9\u78ba\u4fdd\u9078\u64c7\u652f\u6301\u4e2d\u6587\u7684\u5b57\u7b26\u96c6\u3002\u4f8b\u5982\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0bSQL\u8a9e\u53e5\u5275\u5efa\u4e00\u500b\u652f\u6301\u4e2d\u6587\u7684\u6578\u64da\u5eab\uff1a<\/p>\n<pre><code>CREATE DATABASE your_database_name\nCOLLATE Chinese_PRC_CI_AS;\n<\/code><\/pre>\n<h3 id=\"3-%e6%aa%a2%e6%9f%a5%e9%80%a3%e6%8e%a5%e5%ad%97%e7%ac%a6%e4%b8%b2-PcWThoFPbV\">3. \u6aa2\u67e5\u9023\u63a5\u5b57\u7b26\u4e32<\/h3>\n<p>\u5728\u61c9\u7528\u7a0b\u5e8f\u4e2d\u9023\u63a5SQL Server\u6642\uff0c\u78ba\u4fdd\u9023\u63a5\u5b57\u7b26\u4e32\u4e2d\u5305\u542b\u6b63\u78ba\u7684\u5b57\u7b26\u96c6\u8a2d\u7f6e\u3002\u4f8b\u5982\uff0c\u5c0d\u65bcADO.NET\uff0c\u53ef\u4ee5\u9019\u6a23\u8a2d\u7f6e\uff1a<\/p>\n<pre><code>Server=myServerAddress;Database=myDataBase;User Id=myUsername;Password=myPassword;Charset=utf8;\n<\/code><\/pre>\n<h2 id=\"%e6%b8%ac%e8%a9%a6%e8%88%87%e9%a9%97%e8%ad%89-PcWThoFPbV\">\u6e2c\u8a66\u8207\u9a57\u8b49<\/h2>\n<p>\u5728\u9032\u884c\u4e0a\u8ff0\u66f4\u6539\u5f8c\uff0c\u5efa\u8b70\u9032\u884c\u6e2c\u8a66\u4ee5\u78ba\u4fdd\u4e2d\u6587\u5b57\u7b26\u80fd\u5920\u6b63\u78ba\u5b58\u5132\u548c\u6aa2\u7d22\u3002\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0bSQL\u8a9e\u53e5\u63d2\u5165\u4e2d\u6587\u6578\u64da\u4e26\u6aa2\u67e5\u7d50\u679c\uff1a<\/p>\n<pre><code>INSERT INTO your_table_name (your_column_name) VALUES (N'\u4e2d\u6587\u6e2c\u8a66');\nSELECT * FROM your_table_name;\n<\/code><\/pre>\n<p>\u5982\u679c\u67e5\u8a62\u7d50\u679c\u80fd\u5920\u6b63\u78ba\u986f\u793a\u4e2d\u6587\u5b57\u7b26\uff0c\u5247\u8aaa\u660e\u554f\u984c\u5df2\u7d93\u89e3\u6c7a\u3002<\/p>\n<h2 id=\"%e7%b8%bd%e7%b5%90-PcWThoFPbV\">\u7e3d\u7d50<\/h2>\n<p>\u5728SQL Server 2008 R2\u4e2d\uff0c\u4f7f\u7528varchar\u5b57\u6bb5\u985e\u578b\u5b58\u5132\u4e2d\u6587\u5b57\u7b26\u6642\uff0c\u53ef\u80fd\u6703\u9047\u5230\u4e82\u78bc\u554f\u984c\u3002\u901a\u904e\u5c07\u5b57\u6bb5\u985e\u578b\u66f4\u6539\u70banvarchar\u3001\u78ba\u4fdd\u6578\u64da\u5eab\u5b57\u7b26\u96c6\u8a2d\u7f6e\u6b63\u78ba\u4ee5\u53ca\u6aa2\u67e5\u9023\u63a5\u5b57\u7b26\u4e32\uff0c\u53ef\u4ee5\u6709\u6548\u89e3\u6c7a\u9019\u4e00\u554f\u984c\u3002\u9019\u4e9b\u6b65\u9a5f\u4e0d\u50c5\u80fd\u5920\u63d0\u9ad8\u6578\u64da\u7684\u5b8c\u6574\u6027\uff0c\u9084\u80fd\u589e\u5f37\u61c9\u7528\u7a0b\u5e8f\u7684\u7a69\u5b9a\u6027\u3002<\/p>\n<p>\u5982\u679c\u60a8\u9700\u8981\u9032\u4e00\u6b65\u7684\u652f\u6301\u6216\u5c0b\u627e\u53ef\u9760\u7684 <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u89e3\u6c7a\u65b9\u6848\uff0c\u8acb\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u4ee5\u7372\u53d6\u66f4\u591a\u4fe1\u606f\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u89e3\u6c7aSQL Server 2008 R2\u4e2dvarchar\u5b57\u6bb5\u985e\u578b\u5c0e\u81f4\u7684\u4e2d\u6587\u4e82\u78bc\u554f\u984c\uff0c\u78ba\u4fdd\u6578\u64da\u6b63\u78ba\u986f\u793a\u8207\u5b58\u5132\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-183144","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/183144","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=183144"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/183144\/revisions"}],"predecessor-version":[{"id":183145,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/183144\/revisions\/183145"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=183144"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=183144"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=183144"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}