{"id":142783,"date":"2024-10-31T23:09:23","date_gmt":"2024-10-31T15:09:23","guid":{"rendered":"https:\/\/server.hk\/cnblog\/142783\/"},"modified":"2024-10-31T23:09:24","modified_gmt":"2024-10-31T15:09:24","slug":"sql-server-%e9%8c%af%e8%aa%a4-12329-%e6%a7%8b%e9%80%a0%e4%b8%8d%e6%94%af%e6%8c%81%e4%bd%bf%e7%94%a8%e4%bb%a3%e7%a2%bc%e9%a0%81%e4%b8%8d%e6%98%af-1252-%e7%9a%84%e6%8e%92%e5%ba%8f%e8%a6%8f%e5%89%87","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/142783\/","title":{"rendered":"SQL Server \u932f\u8aa4 12329 \u69cb\u9020\u4e0d\u652f\u6301\u4f7f\u7528\u4ee3\u78bc\u9801\u4e0d\u662f 1252 \u7684\u6392\u5e8f\u898f\u5247\u7684\u6578\u64da\u985e\u578b char (n) \u548c varchar (n)\u3002\u6545\u969c\u8655\u7406\u4fee\u5fa9\u652f\u6301\u9060\u7a0b"},"content":{"rendered":"<h1 id=\"sql-server-%e9%8c%af%e8%aa%a4-12329-%e7%9a%84%e8%a7%a3%e6%9e%90%e8%88%87%e6%95%85%e9%9a%9c%e8%99%95%e7%90%86-TNNjtXeuih\">SQL Server \u932f\u8aa4 12329 \u7684\u89e3\u6790\u8207\u6545\u969c\u8655\u7406<\/h1>\n<p>\u5728\u4f7f\u7528 SQL Server \u7684\u904e\u7a0b\u4e2d\uff0c\u958b\u767c\u8005\u548c\u6578\u64da\u5eab\u7ba1\u7406\u54e1\u53ef\u80fd\u6703\u9047\u5230\u5404\u7a2e\u932f\u8aa4\uff0c\u5176\u4e2d\u4e4b\u4e00\u4fbf\u662f\u932f\u8aa4 12329\u3002\u9019\u500b\u932f\u8aa4\u901a\u5e38\u8207\u5b57\u7b26\u6578\u64da\u985e\u578b\u7684\u6392\u5e8f\u898f\u5247\u6709\u95dc\uff0c\u7279\u5225\u662f\u7576\u4f7f\u7528\u7684\u4ee3\u78bc\u9801\u4e0d\u662f 1252 \u6642\uff0c\u6703\u5c0e\u81f4 <code>char(n)<\/code> \u548c <code>varchar(n)<\/code> \u6578\u64da\u985e\u578b\u7684\u7d50\u69cb\u4e0d\u652f\u6301\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0e\u9019\u4e00\u932f\u8aa4\u7684\u539f\u56e0\u53ca\u5176\u89e3\u6c7a\u65b9\u6848\u3002<\/p>\n<h2 id=\"%e9%8c%af%e8%aa%a4-12329-%e7%9a%84%e5%8e%9f%e5%9b%a0-TNNjtXeuih\">\u932f\u8aa4 12329 \u7684\u539f\u56e0<\/h2>\n<p>SQL Server \u932f\u8aa4 12329 \u901a\u5e38\u51fa\u73fe\u5728\u4ee5\u4e0b\u60c5\u6cc1\u4e0b\uff1a<\/p>\n<ul>\n<li>\u7576\u6578\u64da\u5eab\u7684\u6392\u5e8f\u898f\u5247\uff08collation\uff09\u8207\u5b57\u7b26\u6578\u64da\u985e\u578b\u7684\u4ee3\u78bc\u9801\u4e0d\u5339\u914d\u6642\u3002<\/li>\n<li>\u4f7f\u7528\u4e86\u4e0d\u652f\u6301\u7684\u5b57\u7b26\u96c6\u6216\u4ee3\u78bc\u9801\uff0c\u5c0e\u81f4 SQL Server \u7121\u6cd5\u6b63\u78ba\u8655\u7406\u5b57\u7b26\u6578\u64da\u3002<\/li>\n<li>\u5728\u5275\u5efa\u6216\u4fee\u6539\u8868\u6642\uff0c\u6307\u5b9a\u7684\u5b57\u7b26\u6578\u64da\u985e\u578b\u8207\u6578\u64da\u5eab\u7684\u6392\u5e8f\u898f\u5247\u4e0d\u517c\u5bb9\u3002<\/li>\n<\/ul>\n<p>\u4f8b\u5982\uff0c\u5982\u679c\u6578\u64da\u5eab\u7684\u6392\u5e8f\u898f\u5247\u8a2d\u7f6e\u70ba <code>Latin1_General_CI_AS<\/code>\uff08\u9019\u662f\u57fa\u65bc\u4ee3\u78bc\u9801 1252\uff09\uff0c\u800c\u60a8\u5617\u8a66\u4f7f\u7528\u5176\u4ed6\u4ee3\u78bc\u9801\u7684\u5b57\u7b26\u6578\u64da\u985e\u578b\uff0c\u5247\u53ef\u80fd\u6703\u5f15\u767c\u6b64\u932f\u8aa4\u3002<\/p>\n<h2 id=\"%e5%a6%82%e4%bd%95%e8%a7%a3%e6%b1%ba%e9%8c%af%e8%aa%a4-12329-TNNjtXeuih\">\u5982\u4f55\u89e3\u6c7a\u932f\u8aa4 12329<\/h2>\n<p>\u89e3\u6c7a SQL Server \u932f\u8aa4 12329 \u7684\u65b9\u6cd5\u4e3b\u8981\u6709\u4ee5\u4e0b\u5e7e\u7a2e\uff1a<\/p>\n<h3 id=\"1-%e6%aa%a2%e6%9f%a5%e6%95%b8%e6%93%9a%e5%ba%ab%e7%9a%84%e6%8e%92%e5%ba%8f%e8%a6%8f%e5%89%87-TNNjtXeuih\">1. \u6aa2\u67e5\u6578\u64da\u5eab\u7684\u6392\u5e8f\u898f\u5247<\/h3>\n<p>\u9996\u5148\uff0c\u60a8\u9700\u8981\u6aa2\u67e5\u6578\u64da\u5eab\u7684\u6392\u5e8f\u898f\u5247\u3002\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b SQL \u67e5\u8a62\u4f86\u67e5\u770b\u7576\u524d\u6578\u64da\u5eab\u7684\u6392\u5e8f\u898f\u5247\uff1a<\/p>\n<pre><code>SELECT DATABASEPROPERTYEX('YourDatabaseName', 'Collation') AS DatabaseCollation;<\/code><\/pre>\n<p>\u5982\u679c\u767c\u73fe\u6392\u5e8f\u898f\u5247\u4e0d\u7b26\u5408\u60a8\u7684\u9700\u6c42\uff0c\u60a8\u53ef\u4ee5\u8003\u616e\u66f4\u6539\u6578\u64da\u5eab\u7684\u6392\u5e8f\u898f\u5247\u3002\u8acb\u6ce8\u610f\uff0c\u9019\u53ef\u80fd\u6703\u5f71\u97ff\u5230\u73fe\u6709\u6578\u64da\uff0c\u56e0\u6b64\u5728\u9032\u884c\u66f4\u6539\u4e4b\u524d\uff0c\u52d9\u5fc5\u5099\u4efd\u6578\u64da\u3002<\/p>\n<h3 id=\"2-%e4%bf%ae%e6%94%b9%e8%a1%a8%e7%9a%84%e5%ad%97%e7%ac%a6%e6%95%b8%e6%93%9a%e9%a1%9e%e5%9e%8b-TNNjtXeuih\">2. \u4fee\u6539\u8868\u7684\u5b57\u7b26\u6578\u64da\u985e\u578b<\/h3>\n<p>\u5982\u679c\u60a8\u4e0d\u60f3\u66f4\u6539\u6578\u64da\u5eab\u7684\u6392\u5e8f\u898f\u5247\uff0c\u53e6\u4e00\u7a2e\u89e3\u6c7a\u65b9\u6848\u662f\u4fee\u6539\u8868\u4e2d\u5b57\u7b26\u6578\u64da\u985e\u578b\u7684\u5b9a\u7fa9\u3002\u78ba\u4fdd\u4f7f\u7528\u7684\u5b57\u7b26\u6578\u64da\u985e\u578b\u8207\u6578\u64da\u5eab\u7684\u6392\u5e8f\u898f\u5247\u76f8\u5339\u914d\u3002\u4f8b\u5982\uff0c\u60a8\u53ef\u4ee5\u5c07 <code>char(n)<\/code> \u6216 <code>varchar(n)<\/code> \u7684\u5b9a\u7fa9\u66f4\u6539\u70ba\u652f\u6301\u7684\u5b57\u7b26\u96c6\uff1a<\/p>\n<pre><code>ALTER TABLE YourTableName\nALTER COLUMN YourColumnName VARCHAR(n) COLLATE Latin1_General_CI_AS;<\/code><\/pre>\n<h3 id=\"3-%e4%bd%bf%e7%94%a8-unicode-%e6%95%b8%e6%93%9a%e9%a1%9e%e5%9e%8b-TNNjtXeuih\">3. \u4f7f\u7528 Unicode \u6578\u64da\u985e\u578b<\/h3>\n<p>\u5982\u679c\u60a8\u7684\u61c9\u7528\u7a0b\u5e8f\u9700\u8981\u652f\u6301\u591a\u7a2e\u8a9e\u8a00\u6216\u5b57\u7b26\u96c6\uff0c\u8003\u616e\u4f7f\u7528 Unicode \u6578\u64da\u985e\u578b\uff0c\u5982 <code>nchar(n)<\/code> \u6216 <code>nvarchar(n)<\/code>\u3002\u9019\u4e9b\u6578\u64da\u985e\u578b\u4e0d\u53d7\u4ee3\u78bc\u9801\u7684\u9650\u5236\uff0c\u80fd\u5920\u66f4\u597d\u5730\u8655\u7406\u5404\u7a2e\u5b57\u7b26\uff1a<\/p>\n<pre><code>ALTER TABLE YourTableName\nALTER COLUMN YourColumnName NVARCHAR(n);<\/code><\/pre>\n<h2 id=\"%e6%95%85%e9%9a%9c%e8%99%95%e7%90%86%e8%88%87%e6%94%af%e6%8c%81-TNNjtXeuih\">\u6545\u969c\u8655\u7406\u8207\u652f\u6301<\/h2>\n<p>\u5728\u8655\u7406 SQL Server \u932f\u8aa4 12329 \u6642\uff0c\u9664\u4e86\u4e0a\u8ff0\u65b9\u6cd5\u5916\uff0c\u9084\u53ef\u4ee5\u8003\u616e\u4ee5\u4e0b\u6545\u969c\u8655\u7406\u6b65\u9a5f\uff1a<\/p>\n<ul>\n<li>\u6aa2\u67e5 SQL Server \u7684\u7248\u672c\u548c\u66f4\u65b0\uff0c\u78ba\u4fdd\u4f7f\u7528\u7684\u662f\u6700\u65b0\u7684\u7a69\u5b9a\u7248\u672c\u3002<\/li>\n<li>\u67e5\u770b SQL Server \u7684\u932f\u8aa4\u65e5\u8a8c\uff0c\u7372\u53d6\u66f4\u591a\u7684\u932f\u8aa4\u4fe1\u606f\u548c\u4e0a\u4e0b\u6587\u3002<\/li>\n<li>\u5982\u679c\u554f\u984c\u4ecd\u7136\u5b58\u5728\uff0c\u8003\u616e\u5c0b\u6c42\u5c08\u696d\u7684\u6280\u8853\u652f\u6301\uff0c\u7279\u5225\u662f\u5728\u751f\u7522\u74b0\u5883\u4e2d\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-TNNjtXeuih\">\u7e3d\u7d50<\/h2>\n<p>SQL Server \u932f\u8aa4 12329 \u662f\u4e00\u500b\u5e38\u898b\u7684\u554f\u984c\uff0c\u901a\u5e38\u8207\u5b57\u7b26\u6578\u64da\u985e\u578b\u7684\u6392\u5e8f\u898f\u5247\u4e0d\u5339\u914d\u6709\u95dc\u3002\u901a\u904e\u6aa2\u67e5\u6578\u64da\u5eab\u7684\u6392\u5e8f\u898f\u5247\u3001\u4fee\u6539\u8868\u7684\u5b57\u7b26\u6578\u64da\u985e\u578b\u6216\u4f7f\u7528 Unicode \u6578\u64da\u985e\u578b\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u89e3\u6c7a\u6b64\u554f\u984c\u3002\u5c0d\u65bc\u9700\u8981\u9032\u4e00\u6b65\u652f\u6301\u7684\u7528\u6236\uff0c\u8003\u616e\u4f7f\u7528 <a href=\"https:\/\/server.hk\">\u9999\u6e2f VPS<\/a> \u670d\u52d9\uff0c\u4ee5\u7372\u5f97\u66f4\u7a69\u5b9a\u7684\u6578\u64da\u5eab\u904b\u884c\u74b0\u5883\u548c\u5c08\u696d\u7684\u6280\u8853\u652f\u6301\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u89e3\u6c7a SQL Server \u932f\u8aa4 12329\uff0c\u8a72\u932f\u8aa4\u6d89\u53ca\u4e0d\u652f\u6301\u7684\u5b57\u7b26\u96c6\u548c\u6392\u5e8f\u898f\u5247\uff0c\u63d0\u4f9b\u6545\u969c\u8655\u7406\u548c\u9060\u7a0b\u4fee\u5fa9\u652f\u6301\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-142783","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/142783","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=142783"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/142783\/revisions"}],"predecessor-version":[{"id":142784,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/142783\/revisions\/142784"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=142783"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=142783"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=142783"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}