{"id":194507,"date":"2024-11-13T07:14:17","date_gmt":"2024-11-12T23:14:17","guid":{"rendered":"https:\/\/server.hk\/cnblog\/194507\/"},"modified":"2024-11-13T07:14:18","modified_gmt":"2024-11-12T23:14:18","slug":"%e7%94%a8charindex%e6%96%b9%e6%b3%95%e5%af%a6%e7%8f%be%e5%b0%8d%e5%ad%97%e6%ae%b5%e6%8c%89%e6%8c%87%e5%ae%9a%e9%a0%86%e5%ba%8f%e6%8e%92%e5%ba%8f","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/194507\/","title":{"rendered":"\u7528CHARINDEX\u65b9\u6cd5\u5be6\u73fe\u5c0d\u5b57\u6bb5\u6309\u6307\u5b9a\u9806\u5e8f\u6392\u5e8f"},"content":{"rendered":"<h1 id=\"%e7%94%a8charindex%e6%96%b9%e6%b3%95%e5%af%a6%e7%8f%be%e5%b0%8d%e5%ad%97%e6%ae%b5%e6%8c%89%e6%8c%87%e5%ae%9a%e9%a0%86%e5%ba%8f%e6%8e%92%e5%ba%8f-ngtnDKSzjx\">\u7528CHARINDEX\u65b9\u6cd5\u5be6\u73fe\u5c0d\u5b57\u6bb5\u6309\u6307\u5b9a\u9806\u5e8f\u6392\u5e8f<\/h1>\n<p>\u5728\u6578\u64da\u5eab\u7ba1\u7406\u4e2d\uff0c\u6392\u5e8f\u662f\u4e00\u500b\u5e38\u898b\u7684\u9700\u6c42\uff0c\u5c24\u5176\u662f\u5728\u9700\u8981\u6839\u64da\u7279\u5b9a\u7684\u9806\u5e8f\u4f86\u986f\u793a\u6578\u64da\u6642\u3002SQL Server\u63d0\u4f9b\u4e86\u591a\u7a2e\u65b9\u6cd5\u4f86\u5be6\u73fe\u6392\u5e8f\uff0c\u5176\u4e2d\u4e4b\u4e00\u662f\u4f7f\u7528CHARINDEX\u51fd\u6578\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5982\u4f55\u5229\u7528CHARINDEX\u65b9\u6cd5\u5c0d\u5b57\u6bb5\u9032\u884c\u6309\u6307\u5b9a\u9806\u5e8f\u7684\u6392\u5e8f\uff0c\u4e26\u63d0\u4f9b\u76f8\u95dc\u7684\u793a\u4f8b\u548c\u4ee3\u78bc\u3002<\/p>\n<h2 id=\"charindex%e5%87%bd%e6%95%b8%e6%a6%82%e8%bf%b0-ngtnDKSzjx\">CHARINDEX\u51fd\u6578\u6982\u8ff0<\/h2>\n<p>CHARINDEX\u662f\u4e00\u500b\u7528\u65bc\u67e5\u627e\u5b50\u5b57\u7b26\u4e32\u5728\u5b57\u7b26\u4e32\u4e2d\u4f4d\u7f6e\u7684\u51fd\u6578\u3002\u5176\u57fa\u672c\u8a9e\u6cd5\u5982\u4e0b\uff1a<\/p>\n<pre><code>CHARINDEX ( expressionToFind ,expressionToSearch [ , start_location ] )<\/code><\/pre>\n<p>\u5176\u4e2d\uff0c<code>expressionToFind<\/code>\u662f\u8981\u67e5\u627e\u7684\u5b50\u5b57\u7b26\u4e32\uff0c<code>expressionToSearch<\/code>\u662f\u8981\u641c\u7d22\u7684\u5b57\u7b26\u4e32\uff0c<code>start_location<\/code>\u662f\u53ef\u9078\u7684\uff0c\u8868\u793a\u5f9e\u54ea\u500b\u4f4d\u7f6e\u958b\u59cb\u67e5\u627e\u3002CHARINDEX\u51fd\u6578\u8fd4\u56de\u5b50\u5b57\u7b26\u4e32\u7684\u8d77\u59cb\u4f4d\u7f6e\uff0c\u5982\u679c\u672a\u627e\u5230\u5247\u8fd4\u56de0\u3002<\/p>\n<h2 id=\"%e4%bd%bf%e7%94%a8charindex%e9%80%b2%e8%a1%8c%e6%8e%92%e5%ba%8f-ngtnDKSzjx\">\u4f7f\u7528CHARINDEX\u9032\u884c\u6392\u5e8f<\/h2>\n<p>\u5728\u67d0\u4e9b\u60c5\u6cc1\u4e0b\uff0c\u6211\u5011\u53ef\u80fd\u9700\u8981\u6839\u64da\u4e00\u7d44\u7279\u5b9a\u7684\u503c\u4f86\u6392\u5e8f\u6578\u64da\u3002\u4f8b\u5982\uff0c\u5047\u8a2d\u6211\u5011\u6709\u4e00\u500b\u5305\u542b\u9867\u5ba2\u59d3\u540d\u7684\u8868\u683c\uff0c\u6211\u5011\u5e0c\u671b\u6309\u7167\u7279\u5b9a\u7684\u59d3\u540d\u9806\u5e8f\u9032\u884c\u6392\u5e8f\u3002\u9019\u6642\u53ef\u4ee5\u4f7f\u7528CHARINDEX\u4f86\u5be6\u73fe\u3002<\/p>\n<h3 id=\"%e7%a4%ba%e4%be%8b%e6%95%b8%e6%93%9a-ngtnDKSzjx\">\u793a\u4f8b\u6578\u64da<\/h3>\n<p>\u5047\u8a2d\u6211\u5011\u6709\u4e00\u500b\u540d\u70ba<code>Customers<\/code>\u7684\u8868\u683c\uff0c\u7d50\u69cb\u5982\u4e0b\uff1a<\/p>\n<pre><code>CREATE TABLE Customers (\n    CustomerID INT,\n    CustomerName NVARCHAR(100)\n);\n<\/code><\/pre>\n<p>\u4e26\u4e14\u6211\u5011\u63d2\u5165\u4e86\u4e00\u4e9b\u6578\u64da\uff1a<\/p>\n<pre><code>INSERT INTO Customers (CustomerID, CustomerName) VALUES\n(1, 'Alice'),\n(2, 'Bob'),\n(3, 'Charlie'),\n(4, 'David'),\n(5, 'Eve');\n<\/code><\/pre>\n<h3 id=\"%e6%8c%87%e5%ae%9a%e6%8e%92%e5%ba%8f%e9%a0%86%e5%ba%8f-ngtnDKSzjx\">\u6307\u5b9a\u6392\u5e8f\u9806\u5e8f<\/h3>\n<p>\u5047\u8a2d\u6211\u5011\u5e0c\u671b\u6309\u7167\u4ee5\u4e0b\u9806\u5e8f\u5c0d\u9867\u5ba2\u59d3\u540d\u9032\u884c\u6392\u5e8f\uff1a&#8217;Charlie&#8217;, &#8216;Alice&#8217;, &#8216;David&#8217;, &#8216;Eve&#8217;, &#8216;Bob&#8217;\u3002\u6211\u5011\u53ef\u4ee5\u4f7f\u7528CHARINDEX\u4f86\u5be6\u73fe\u9019\u4e00\u9700\u6c42\uff1a<\/p>\n<pre><code>DECLARE @OrderList NVARCHAR(MAX) = 'Charlie,Alice,David,Eve,Bob';\n\nSELECT CustomerName\nFROM Customers\nORDER BY CHARINDEX(CustomerName, @OrderList);\n<\/code><\/pre>\n<p>\u5728\u9019\u6bb5\u4ee3\u78bc\u4e2d\uff0c\u6211\u5011\u9996\u5148\u5b9a\u7fa9\u4e86\u4e00\u500b\u5305\u542b\u6240\u9700\u6392\u5e8f\u9806\u5e8f\u7684\u5b57\u7b26\u4e32<code>@OrderList<\/code>\u3002\u7136\u5f8c\uff0c\u6211\u5011\u5728<code>ORDER BY<\/code>\u5b50\u53e5\u4e2d\u4f7f\u7528CHARINDEX\u51fd\u6578\uff0c\u6839\u64da\u9867\u5ba2\u59d3\u540d\u5728<code>@OrderList<\/code>\u4e2d\u7684\u4f4d\u7f6e\u9032\u884c\u6392\u5e8f\u3002<\/p>\n<h2 id=\"%e6%b3%a8%e6%84%8f%e4%ba%8b%e9%a0%85-ngtnDKSzjx\">\u6ce8\u610f\u4e8b\u9805<\/h2>\n<p>\u4f7f\u7528CHARINDEX\u9032\u884c\u6392\u5e8f\u6642\uff0c\u6709\u5e7e\u9ede\u9700\u8981\u6ce8\u610f\uff1a<\/p>\n<ul>\n<li>\u5982\u679c\u67d0\u500b\u503c\u4e0d\u5728\u6307\u5b9a\u7684\u6392\u5e8f\u5217\u8868\u4e2d\uff0cCHARINDEX\u5c07\u8fd4\u56de0\uff0c\u9019\u6703\u5c0e\u81f4\u8a72\u503c\u6392\u5728\u6700\u524d\u9762\u3002<\/li>\n<li>\u78ba\u4fdd\u6392\u5e8f\u5217\u8868\u4e2d\u7684\u503c\u662f\u552f\u4e00\u7684\uff0c\u4ee5\u907f\u514d\u4e0d\u5fc5\u8981\u7684\u6392\u5e8f\u6df7\u6dc6\u3002<\/li>\n<li>CHARINDEX\u5c0d\u65bc\u9577\u5b57\u7b26\u4e32\u7684\u6027\u80fd\u53ef\u80fd\u6703\u53d7\u5230\u5f71\u97ff\uff0c\u56e0\u6b64\u5728\u8655\u7406\u5927\u91cf\u6578\u64da\u6642\u9700\u8b39\u614e\u4f7f\u7528\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-ngtnDKSzjx\">\u7e3d\u7d50<\/h2>\n<p>\u901a\u904e\u4f7f\u7528CHARINDEX\u51fd\u6578\uff0c\u6211\u5011\u53ef\u4ee5\u9748\u6d3b\u5730\u6839\u64da\u6307\u5b9a\u7684\u9806\u5e8f\u5c0d\u6578\u64da\u9032\u884c\u6392\u5e8f\u3002\u9019\u5728\u9700\u8981\u81ea\u5b9a\u7fa9\u6392\u5e8f\u908f\u8f2f\u7684\u60c5\u6cc1\u4e0b\u7279\u5225\u6709\u7528\u3002\u7121\u8ad6\u662f\u5728\u6578\u64da\u5206\u6790\u9084\u662f\u5831\u544a\u751f\u6210\u4e2d\uff0c\u9019\u7a2e\u65b9\u6cd5\u90fd\u80fd\u63d0\u9ad8\u6578\u64da\u7684\u53ef\u8b80\u6027\u548c\u53ef\u7528\u6027\u3002<\/p>\n<p>\u5982\u679c\u60a8\u5c0d\u65bc\u6578\u64da\u5eab\u7ba1\u7406\u6216\u5176\u4ed6\u6280\u8853\u554f\u984c\u6709\u8208\u8da3\uff0c\u6b61\u8fce\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u4e86\u89e3\u66f4\u591a\u8cc7\u8a0a\u3002\u6211\u5011\u63d0\u4f9b\u5404\u7a2e<code><a href=\"https:\/\/server.hk\">VPS<\/a><\/code>\u89e3\u6c7a\u65b9\u6848\uff0c\u5e6b\u52a9\u60a8\u66f4\u597d\u5730\u7ba1\u7406\u548c\u904b\u884c\u60a8\u7684\u61c9\u7528\u7a0b\u5e8f\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4f7f\u7528CHARINDEX\u65b9\u6cd5\u6309\u6307\u5b9a\u9806\u5e8f\u5c0d\u5b57\u6bb5\u9032\u884c\u6392\u5e8f\uff0c\u63d0\u5347\u6578\u64da\u67e5\u8a62\u6548\u7387\uff0c\u5be6\u73fe\u9748\u6d3b\u7684\u6578\u64da\u7ba1\u7406\u548c\u5206\u6790\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-194507","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/194507","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=194507"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/194507\/revisions"}],"predecessor-version":[{"id":194508,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/194507\/revisions\/194508"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=194507"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=194507"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=194507"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}