{"id":172097,"date":"2024-11-07T10:17:16","date_gmt":"2024-11-07T02:17:16","guid":{"rendered":"https:\/\/server.hk\/cnblog\/172097\/"},"modified":"2024-11-07T10:17:17","modified_gmt":"2024-11-07T02:17:17","slug":"%e5%8e%bb%e9%99%a4sql-server%e4%b8%8d%e5%8f%af%e8%a6%8b%e5%ad%97%e7%ac%a6%e4%b8%a6%e4%b8%8d%e9%9b%a3","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/172097\/","title":{"rendered":"\u53bb\u9664SQL Server\u4e0d\u53ef\u898b\u5b57\u7b26\u4e26\u4e0d\u96e3"},"content":{"rendered":"<h1 id=\"%e5%8e%bb%e9%99%a4sql-server%e4%b8%8d%e5%8f%af%e8%a6%8b%e5%ad%97%e7%ac%a6%e4%b8%a6%e4%b8%8d%e9%9b%a3-IUhAjMiyey\">\u53bb\u9664SQL Server\u4e0d\u53ef\u898b\u5b57\u7b26\u4e26\u4e0d\u96e3<\/h1>\n<p>\u5728\u4f7f\u7528SQL Server\u9032\u884c\u6578\u64da\u7ba1\u7406\u6642\uff0c\u958b\u767c\u8005\u548c\u6578\u64da\u5eab\u7ba1\u7406\u54e1\u7d93\u5e38\u6703\u9047\u5230\u4e0d\u53ef\u898b\u5b57\u7b26\u7684\u554f\u984c\u3002\u9019\u4e9b\u5b57\u7b26\u53ef\u80fd\u6703\u5f71\u97ff\u6578\u64da\u7684\u5b8c\u6574\u6027\u548c\u67e5\u8a62\u7684\u6e96\u78ba\u6027\uff0c\u56e0\u6b64\u4e86\u89e3\u5982\u4f55\u53bb\u9664\u9019\u4e9b\u5b57\u7b26\u662f\u975e\u5e38\u91cd\u8981\u7684\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u4e0d\u53ef\u898b\u5b57\u7b26\u7684\u5b9a\u7fa9\u3001\u5e38\u898b\u985e\u578b\u4ee5\u53ca\u5982\u4f55\u5728SQL Server\u4e2d\u6709\u6548\u5730\u53bb\u9664\u9019\u4e9b\u5b57\u7b26\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%af%e4%b8%8d%e5%8f%af%e8%a6%8b%e5%ad%97%e7%ac%a6%ef%bc%9f-IUhAjMiyey\">\u4ec0\u9ebc\u662f\u4e0d\u53ef\u898b\u5b57\u7b26\uff1f<\/h2>\n<p>\u4e0d\u53ef\u898b\u5b57\u7b26\u662f\u6307\u5728\u6587\u672c\u4e2d\u4e0d\u6703\u986f\u793a\u7684\u5b57\u7b26\uff0c\u9019\u4e9b\u5b57\u7b26\u901a\u5e38\u7528\u65bc\u683c\u5f0f\u5316\u6216\u63a7\u5236\u6587\u672c\u7684\u986f\u793a\u3002\u5e38\u898b\u7684\u4e0d\u53ef\u898b\u5b57\u7b26\u5305\u62ec\u7a7a\u683c\u3001\u5236\u8868\u7b26\u3001\u63db\u884c\u7b26\u4ee5\u53ca\u5176\u4ed6\u63a7\u5236\u5b57\u7b26\u3002\u9019\u4e9b\u5b57\u7b26\u5728\u6578\u64da\u8655\u7406\u904e\u7a0b\u4e2d\u53ef\u80fd\u6703\u5c0e\u81f4\u610f\u60f3\u4e0d\u5230\u7684\u932f\u8aa4\uff0c\u7279\u5225\u662f\u5728\u9032\u884c\u5b57\u7b26\u4e32\u6bd4\u8f03\u6216\u6578\u64da\u6e05\u7406\u6642\u3002<\/p>\n<h2 id=\"%e4%b8%8d%e5%8f%af%e8%a6%8b%e5%ad%97%e7%ac%a6%e7%9a%84%e5%b8%b8%e8%a6%8b%e9%a1%9e%e5%9e%8b-IUhAjMiyey\">\u4e0d\u53ef\u898b\u5b57\u7b26\u7684\u5e38\u898b\u985e\u578b<\/h2>\n<ul>\n<li><strong>\u7a7a\u683c\u5b57\u7b26\uff1a<\/strong>\u5305\u62ec\u666e\u901a\u7a7a\u683c\uff08ASCII 32\uff09\u548c\u4e0d\u65b7\u884c\u7a7a\u683c\uff08ASCII 160\uff09\u3002<\/li>\n<li><strong>\u5236\u8868\u7b26\uff1a<\/strong>\u901a\u5e38\u7528\u65bc\u6587\u672c\u7684\u5c0d\u9f4a\uff0cASCII 9\u3002<\/li>\n<li><strong>\u63db\u884c\u7b26\uff1a<\/strong>\u5305\u62ec\u56de\u8eca\uff08ASCII 13\uff09\u548c\u63db\u884c\uff08ASCII 10\uff09\u3002<\/li>\n<li><strong>\u5176\u4ed6\u63a7\u5236\u5b57\u7b26\uff1a<\/strong>\u5982ASCII 0\u523031\u7684\u5b57\u7b26\uff0c\u9019\u4e9b\u5b57\u7b26\u5728\u6587\u672c\u4e2d\u901a\u5e38\u662f\u4e0d\u53ef\u898b\u7684\u3002<\/li>\n<\/ul>\n<h2 id=\"%e5%a6%82%e4%bd%95%e5%9c%a8sql-server%e4%b8%ad%e5%8e%bb%e9%99%a4%e4%b8%8d%e5%8f%af%e8%a6%8b%e5%ad%97%e7%ac%a6-IUhAjMiyey\">\u5982\u4f55\u5728SQL Server\u4e2d\u53bb\u9664\u4e0d\u53ef\u898b\u5b57\u7b26<\/h2>\n<p>\u5728SQL Server\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528\u591a\u7a2e\u65b9\u6cd5\u4f86\u53bb\u9664\u4e0d\u53ef\u898b\u5b57\u7b26\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u7528\u7684\u65b9\u6cd5\uff1a<\/p>\n<h3 id=\"%e4%bd%bf%e7%94%a8replace%e5%87%bd%e6%95%b8-IUhAjMiyey\">\u4f7f\u7528REPLACE\u51fd\u6578<\/h3>\n<p>REPLACE\u51fd\u6578\u53ef\u4ee5\u7528\u4f86\u66ff\u63db\u5b57\u7b26\u4e32\u4e2d\u7684\u7279\u5b9a\u5b57\u7b26\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u793a\u4f8b\uff0c\u5c55\u793a\u5982\u4f55\u4f7f\u7528REPLACE\u51fd\u6578\u53bb\u9664\u7a7a\u683c\u548c\u5236\u8868\u7b26\uff1a<\/p>\n<pre><code>SELECT REPLACE(REPLACE(column_name, CHAR(9), ''), ' ', '') AS CleanedColumn\nFROM your_table;<\/code><\/pre>\n<p>\u5728\u9019\u500b\u4f8b\u5b50\u4e2d\uff0c\u6211\u5011\u9996\u5148\u7528REPLACE\u51fd\u6578\u53bb\u9664\u4e86\u5236\u8868\u7b26\uff0c\u7136\u5f8c\u518d\u53bb\u9664\u4e86\u7a7a\u683c\u3002\u53ef\u4ee5\u6839\u64da\u9700\u8981\u6dfb\u52a0\u66f4\u591a\u7684REPLACE\u51fd\u6578\u4f86\u53bb\u9664\u5176\u4ed6\u4e0d\u53ef\u898b\u5b57\u7b26\u3002<\/p>\n<h3 id=\"%e4%bd%bf%e7%94%a8ltrim%e5%92%8crtrim%e5%87%bd%e6%95%b8-IUhAjMiyey\">\u4f7f\u7528LTRIM\u548cRTRIM\u51fd\u6578<\/h3>\n<p>LTRIM\u548cRTRIM\u51fd\u6578\u53ef\u4ee5\u7528\u4f86\u53bb\u9664\u5b57\u7b26\u4e32\u5169\u7aef\u7684\u7a7a\u683c\u3002\u9019\u5c0d\u65bc\u6e05\u7406\u7528\u6236\u8f38\u5165\u7684\u6578\u64da\u7279\u5225\u6709\u7528\uff1a<\/p>\n<pre><code>SELECT LTRIM(RTRIM(column_name)) AS CleanedColumn\nFROM your_table;<\/code><\/pre>\n<h3 id=\"%e4%bd%bf%e7%94%a8%e6%ad%a3%e5%89%87%e8%a1%a8%e9%81%94%e5%bc%8f-IUhAjMiyey\">\u4f7f\u7528\u6b63\u5247\u8868\u9054\u5f0f<\/h3>\n<p>\u96d6\u7136SQL Server\u672c\u8eab\u4e0d\u652f\u6301\u6b63\u5247\u8868\u9054\u5f0f\uff0c\u4f46\u53ef\u4ee5\u4f7f\u7528CLR\u96c6\u6210\u4f86\u5be6\u73fe\u66f4\u8907\u96dc\u7684\u5b57\u7b26\u6e05\u7406\u3002\u9019\u9700\u8981\u4e00\u4e9b\u984d\u5916\u7684\u8a2d\u7f6e\uff0c\u4f46\u53ef\u4ee5\u63d0\u4f9b\u66f4\u5f37\u5927\u7684\u529f\u80fd\u3002<\/p>\n<h2 id=\"%e5%af%a6%e9%9a%9b%e6%a1%88%e4%be%8b-IUhAjMiyey\">\u5be6\u969b\u6848\u4f8b<\/h2>\n<p>\u5047\u8a2d\u6211\u5011\u6709\u4e00\u500b\u7528\u6236\u6578\u64da\u8868\uff0c\u5176\u4e2d\u5305\u542b\u4e00\u4e9b\u4e0d\u53ef\u898b\u5b57\u7b26\uff0c\u9019\u53ef\u80fd\u6703\u5f71\u97ff\u7528\u6236\u767b\u9304\u7684\u6e96\u78ba\u6027\u3002\u901a\u904e\u4f7f\u7528\u4e0a\u8ff0\u65b9\u6cd5\uff0c\u6211\u5011\u53ef\u4ee5\u6e05\u7406\u9019\u4e9b\u6578\u64da\uff0c\u78ba\u4fdd\u7528\u6236\u80fd\u5920\u9806\u5229\u767b\u9304\u3002<\/p>\n<pre><code>UPDATE users\nSET username = REPLACE(REPLACE(username, CHAR(9), ''), ' ', '')\nWHERE username LIKE '%' + CHAR(9) + '%' OR username LIKE '% ' + '%';<\/code><\/pre>\n<p>\u9019\u6bb5\u4ee3\u78bc\u5c07\u66f4\u65b0\u7528\u6236\u540d\uff0c\u53bb\u9664\u6240\u6709\u7684\u5236\u8868\u7b26\u548c\u7a7a\u683c\uff0c\u5f9e\u800c\u63d0\u9ad8\u6578\u64da\u7684\u8cea\u91cf\u3002<\/p>\n<h2 id=\"%e7%b8%bd%e7%b5%90-IUhAjMiyey\">\u7e3d\u7d50<\/h2>\n<p>\u53bb\u9664SQL Server\u4e2d\u7684\u4e0d\u53ef\u898b\u5b57\u7b26\u4e26\u4e0d\u96e3\uff0c\u901a\u904e\u4f7f\u7528REPLACE\u3001LTRIM\u3001RTRIM\u7b49\u51fd\u6578\uff0c\u6211\u5011\u53ef\u4ee5\u6709\u6548\u5730\u6e05\u7406\u6578\u64da\uff0c\u78ba\u4fdd\u6578\u64da\u7684\u5b8c\u6574\u6027\u548c\u6e96\u78ba\u6027\u3002\u5c0d\u65bc\u9700\u8981\u8655\u7406\u5927\u91cf\u6578\u64da\u7684\u958b\u767c\u8005\u4f86\u8aaa\uff0c\u638c\u63e1\u9019\u4e9b\u6280\u5de7\u662f\u975e\u5e38\u91cd\u8981\u7684\u3002\u82e5\u60a8\u9700\u8981\u66f4\u9ad8\u6548\u7684\u6578\u64da\u8655\u7406\u65b9\u6848\uff0c\u8003\u616e\u4f7f\u7528<a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a>\u6216<a href=\"https:\/\/server.hk\">\u4e91\u670d\u52a1\u5668<\/a>\u4f86\u63d0\u5347\u60a8\u7684\u6578\u64da\u5eab\u6027\u80fd\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5b78\u7fd2\u5982\u4f55\u8f15\u9b06\u53bb\u9664SQL Server\u4e2d\u7684\u4e0d\u53ef\u898b\u5b57\u7b26\uff0c\u63d0\u5347\u6578\u64da\u8cea\u91cf\u548c\u67e5\u8a62\u6548\u7387\uff0c\u8b93\u6578\u64da\u8655\u7406\u66f4\u9806\u66a2\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-172097","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/172097","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=172097"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/172097\/revisions"}],"predecessor-version":[{"id":172098,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/172097\/revisions\/172098"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=172097"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=172097"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=172097"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}