{"id":188926,"date":"2024-11-12T03:04:23","date_gmt":"2024-11-11T19:04:23","guid":{"rendered":"https:\/\/server.hk\/cnblog\/188926\/"},"modified":"2024-11-12T03:04:25","modified_gmt":"2024-11-11T19:04:25","slug":"%e7%89%b9%e6%ae%8a%e5%ad%97%e7%ac%a6mssql%e5%ad%97%e6%ae%b5%e6%aa%a2%e6%b8%ac%ef%bc%9a%e6%98%af%e5%90%a6%e5%8c%85%e5%90%ab%e7%89%b9%e6%ae%8a%e5%ad%97%e7%ac%a6%ef%bc%9f%ef%bc%88mssql-%e5%ad%97%e6%ae%b5","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/188926\/","title":{"rendered":"\u7279\u6b8a\u5b57\u7b26MSSQL\u5b57\u6bb5\u6aa2\u6e2c\uff1a\u662f\u5426\u5305\u542b\u7279\u6b8a\u5b57\u7b26\uff1f\uff08mssql \u5b57\u6bb5\u662f\u5426\u5305\u542b\uff09"},"content":{"rendered":"<h1 id=\"%e7%89%b9%e6%ae%8a%e5%ad%97%e7%ac%a6mssql%e5%ad%97%e6%ae%b5%e6%aa%a2%e6%b8%ac%ef%bc%9a%e6%98%af%e5%90%a6%e5%8c%85%e5%90%ab%e7%89%b9%e6%ae%8a%e5%ad%97%e7%ac%a6%ef%bc%9f-WNyqGTWIPT\">\u7279\u6b8a\u5b57\u7b26MSSQL\u5b57\u6bb5\u6aa2\u6e2c\uff1a\u662f\u5426\u5305\u542b\u7279\u6b8a\u5b57\u7b26\uff1f<\/h1>\n<p>\u5728\u6578\u64da\u5eab\u7ba1\u7406\u4e2d\uff0c\u7279\u5225\u662f\u4f7f\u7528 Microsoft SQL Server (MSSQL) \u6642\uff0c\u6aa2\u6e2c\u5b57\u6bb5\u662f\u5426\u5305\u542b\u7279\u6b8a\u5b57\u7b26\u662f\u4e00\u500b\u5e38\u898b\u7684\u9700\u6c42\u3002\u7279\u6b8a\u5b57\u7b26\u53ef\u80fd\u6703\u5f71\u97ff\u6578\u64da\u7684\u5b8c\u6574\u6027\u548c\u61c9\u7528\u7a0b\u5e8f\u7684\u6b63\u5e38\u904b\u884c\uff0c\u56e0\u6b64\u4e86\u89e3\u5982\u4f55\u6aa2\u6e2c\u9019\u4e9b\u5b57\u7b26\u662f\u975e\u5e38\u91cd\u8981\u7684\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%af%e7%89%b9%e6%ae%8a%e5%ad%97%e7%ac%a6%ef%bc%9f-WNyqGTWIPT\">\u4ec0\u9ebc\u662f\u7279\u6b8a\u5b57\u7b26\uff1f<\/h2>\n<p>\u7279\u6b8a\u5b57\u7b26\u901a\u5e38\u6307\u7684\u662f\u4e0d\u5728\u5b57\u6bcd\u6216\u6578\u5b57\u7bc4\u570d\u5167\u7684\u5b57\u7b26\uff0c\u4f8b\u5982\u6a19\u9ede\u7b26\u865f\u3001\u7a7a\u683c\u3001\u4ee5\u53ca\u5176\u4ed6\u7b26\u865f\uff08\u5982 @\u3001#\u3001$\u3001%\u3001^\u3001&amp;\u3001* \u7b49\uff09\u3002\u5728\u67d0\u4e9b\u60c5\u6cc1\u4e0b\uff0c\u9019\u4e9b\u5b57\u7b26\u53ef\u80fd\u6703\u5c0e\u81f4 SQL \u67e5\u8a62\u932f\u8aa4\u6216\u6578\u64da\u8655\u7406\u554f\u984c\u3002<\/p>\n<h2 id=\"%e7%82%ba%e4%bb%80%e9%ba%bc%e9%9c%80%e8%a6%81%e6%aa%a2%e6%b8%ac%e7%89%b9%e6%ae%8a%e5%ad%97%e7%ac%a6%ef%bc%9f-WNyqGTWIPT\">\u70ba\u4ec0\u9ebc\u9700\u8981\u6aa2\u6e2c\u7279\u6b8a\u5b57\u7b26\uff1f<\/h2>\n<ul>\n<li><strong>\u6578\u64da\u5b8c\u6574\u6027\uff1a<\/strong>\u7279\u6b8a\u5b57\u7b26\u53ef\u80fd\u6703\u5c0e\u81f4\u6578\u64da\u4e0d\u4e00\u81f4\uff0c\u5f71\u97ff\u6578\u64da\u7684\u6e96\u78ba\u6027\u3002<\/li>\n<li><strong>\u5b89\u5168\u6027\uff1a<\/strong>\u67d0\u4e9b\u7279\u6b8a\u5b57\u7b26\u53ef\u80fd\u6703\u88ab\u7528\u65bc SQL \u6ce8\u5165\u653b\u64ca\uff0c\u56e0\u6b64\u6aa2\u6e2c\u9019\u4e9b\u5b57\u7b26\u6709\u52a9\u65bc\u63d0\u9ad8\u61c9\u7528\u7a0b\u5e8f\u7684\u5b89\u5168\u6027\u3002<\/li>\n<li><strong>\u6578\u64da\u8655\u7406\uff1a<\/strong>\u5728\u6578\u64da\u8655\u7406\u904e\u7a0b\u4e2d\uff0c\u7279\u6b8a\u5b57\u7b26\u53ef\u80fd\u6703\u5c0e\u81f4\u932f\u8aa4\u6216\u7570\u5e38\u884c\u70ba\u3002<\/li>\n<\/ul>\n<h2 id=\"mssql%e4%b8%ad%e6%aa%a2%e6%b8%ac%e7%89%b9%e6%ae%8a%e5%ad%97%e7%ac%a6%e7%9a%84%e6%96%b9%e6%b3%95-WNyqGTWIPT\">MSSQL\u4e2d\u6aa2\u6e2c\u7279\u6b8a\u5b57\u7b26\u7684\u65b9\u6cd5<\/h2>\n<p>\u5728 MSSQL \u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528\u591a\u7a2e\u65b9\u6cd5\u4f86\u6aa2\u6e2c\u5b57\u6bb5\u662f\u5426\u5305\u542b\u7279\u6b8a\u5b57\u7b26\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u7528\u7684\u65b9\u6cd5\uff1a<\/p>\n<h3 id=\"1-%e4%bd%bf%e7%94%a8-like-%e6%93%8d%e4%bd%9c%e7%ac%a6-WNyqGTWIPT\">1. \u4f7f\u7528 LIKE \u64cd\u4f5c\u7b26<\/h3>\n<p>\u53ef\u4ee5\u4f7f\u7528 SQL \u7684 LIKE \u64cd\u4f5c\u7b26\u4f86\u6aa2\u6e2c\u5b57\u6bb5\u4e2d\u662f\u5426\u5305\u542b\u7279\u6b8a\u5b57\u7b26\u3002\u4f8b\u5982\uff0c\u4ee5\u4e0b\u67e5\u8a62\u5c07\u6aa2\u6e2c\u540d\u70ba <code>username<\/code> \u7684\u5b57\u6bb5\u662f\u5426\u5305\u542b\u7279\u6b8a\u5b57\u7b26\uff1a<\/p>\n<pre><code>SELECT * FROM users WHERE username LIKE '%[^a-zA-Z0-9]%';<\/code><\/pre>\n<p>\u5728\u9019\u500b\u67e5\u8a62\u4e2d\uff0c<code>[^a-zA-Z0-9]<\/code> \u8868\u793a\u4efb\u4f55\u4e0d\u5728\u5b57\u6bcd\u548c\u6578\u5b57\u7bc4\u570d\u5167\u7684\u5b57\u7b26\u3002<\/p>\n<h3 id=\"2-%e4%bd%bf%e7%94%a8-patindex-%e5%87%bd%e6%95%b8-WNyqGTWIPT\">2. \u4f7f\u7528 PATINDEX \u51fd\u6578<\/h3>\n<p>\u53e6\u4e00\u7a2e\u65b9\u6cd5\u662f\u4f7f\u7528 <code>PATINDEX<\/code> \u51fd\u6578\u4f86\u67e5\u627e\u7279\u6b8a\u5b57\u7b26\u3002\u4ee5\u4e0b\u662f\u4f7f\u7528 <code>PATINDEX<\/code> \u7684\u793a\u4f8b\uff1a<\/p>\n<pre><code>SELECT * FROM users WHERE PATINDEX('%[^a-zA-Z0-9]%', username) &gt; 0;<\/code><\/pre>\n<p>\u9019\u500b\u67e5\u8a62\u5c07\u8fd4\u56de\u6240\u6709\u5305\u542b\u7279\u6b8a\u5b57\u7b26\u7684\u7528\u6236\u540d\u3002<\/p>\n<h3 id=\"3-%e4%bd%bf%e7%94%a8%e6%ad%a3%e5%89%87%e8%a1%a8%e9%81%94%e5%bc%8f%ef%bc%88sql-server-2016-%e5%8f%8a%e4%bb%a5%e4%b8%8a%e7%89%88%e6%9c%ac%ef%bc%89-WNyqGTWIPT\">3. \u4f7f\u7528\u6b63\u5247\u8868\u9054\u5f0f\uff08SQL Server 2016 \u53ca\u4ee5\u4e0a\u7248\u672c\uff09<\/h3>\n<p>\u5728 SQL Server 2016 \u53ca\u4ee5\u4e0a\u7248\u672c\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528 <code>STRING_SPLIT<\/code> \u51fd\u6578\u7d50\u5408\u6b63\u5247\u8868\u9054\u5f0f\u4f86\u6aa2\u6e2c\u7279\u6b8a\u5b57\u7b26\u3002\u96d6\u7136 SQL Server \u672c\u8eab\u4e0d\u76f4\u63a5\u652f\u6301\u6b63\u5247\u8868\u9054\u5f0f\uff0c\u4f46\u53ef\u4ee5\u901a\u904e CLR \u96c6\u6210\u4f86\u5be6\u73fe\u3002<\/p>\n<h2 id=\"%e7%a4%ba%e4%be%8b%ef%bc%9a%e6%aa%a2%e6%b8%ac%e7%89%b9%e6%ae%8a%e5%ad%97%e7%ac%a6%e7%9a%84%e5%ae%8c%e6%95%b4%e6%9f%a5%e8%a9%a2-WNyqGTWIPT\">\u793a\u4f8b\uff1a\u6aa2\u6e2c\u7279\u6b8a\u5b57\u7b26\u7684\u5b8c\u6574\u67e5\u8a62<\/h2>\n<p>\u4ee5\u4e0b\u662f\u4e00\u500b\u5b8c\u6574\u7684\u67e5\u8a62\u793a\u4f8b\uff0c\u8a72\u67e5\u8a62\u5c07\u6aa2\u6e2c <code>users<\/code> \u8868\u4e2d\u7684\u6240\u6709\u5b57\u6bb5\uff0c\u4e26\u8fd4\u56de\u5305\u542b\u7279\u6b8a\u5b57\u7b26\u7684\u8a18\u9304\uff1a<\/p>\n<pre><code>SELECT * FROM users \nWHERE username LIKE '%[^a-zA-Z0-9]%' \nOR email LIKE '%[^a-zA-Z0-9@.]%';<\/code><\/pre>\n<p>\u9019\u500b\u67e5\u8a62\u5c07\u6aa2\u67e5 <code>username<\/code> \u548c <code>email<\/code> \u5b57\u6bb5\uff0c\u4e26\u8fd4\u56de\u6240\u6709\u5305\u542b\u7279\u6b8a\u5b57\u7b26\u7684\u8a18\u9304\u3002<\/p>\n<h2 id=\"%e7%b5%90%e8%ab%96-WNyqGTWIPT\">\u7d50\u8ad6<\/h2>\n<p>\u6aa2\u6e2c MSSQL \u5b57\u6bb5\u4e2d\u7684\u7279\u6b8a\u5b57\u7b26\u662f\u78ba\u4fdd\u6578\u64da\u5b8c\u6574\u6027\u548c\u5b89\u5168\u6027\u7684\u91cd\u8981\u6b65\u9a5f\u3002\u901a\u904e\u4f7f\u7528 LIKE \u64cd\u4f5c\u7b26\u3001PATINDEX \u51fd\u6578\u6216\u6b63\u5247\u8868\u9054\u5f0f\u7b49\u65b9\u6cd5\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u6709\u6548\u5730\u8b58\u5225\u548c\u8655\u7406\u9019\u4e9b\u5b57\u7b26\u3002\u9019\u4e0d\u50c5\u6709\u52a9\u65bc\u63d0\u9ad8\u61c9\u7528\u7a0b\u5e8f\u7684\u7a69\u5b9a\u6027\uff0c\u9084\u80fd\u589e\u5f37\u6578\u64da\u7684\u5b89\u5168\u6027\u3002<\/p>\n<p>\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u53ef\u9760\u7684 <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u89e3\u6c7a\u65b9\u6848\uff0cServer.HK \u63d0\u4f9b\u591a\u7a2e\u9078\u64c7\u4ee5\u6eff\u8db3\u60a8\u7684\u9700\u6c42\u3002\u6211\u5011\u7684 <a href=\"https:\/\/server.hk\">\u4e91\u670d\u52a1\u5668<\/a> \u670d\u52d9\u80fd\u5920\u652f\u6301\u60a8\u7684\u6578\u64da\u5eab\u7ba1\u7406\u548c\u61c9\u7528\u7a0b\u5e8f\u958b\u767c\uff0c\u78ba\u4fdd\u60a8\u7684\u696d\u52d9\u904b\u884c\u9806\u5229\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u68c0\u6d4bMSSQL\u5b57\u6bb5\u662f\u5426\u5305\u542b\u7279\u6b8a\u5b57\u7b26\uff0c\u786e\u4fdd\u6570\u636e\u5b8c\u6574\u6027\u4e0e\u5b89\u5168\u6027\uff0c\u63d0\u5347\u6570\u636e\u5e93\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-188926","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/188926","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=188926"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/188926\/revisions"}],"predecessor-version":[{"id":188927,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/188926\/revisions\/188927"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=188926"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=188926"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=188926"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}