{"id":180694,"date":"2024-11-09T12:24:20","date_gmt":"2024-11-09T04:24:20","guid":{"rendered":"https:\/\/server.hk\/cnblog\/180694\/"},"modified":"2024-11-09T12:24:20","modified_gmt":"2024-11-09T04:24:20","slug":"%e6%b7%b1%e5%85%a5%e4%ba%86%e8%a7%a3mssql%e4%b8%ad%e5%ad%97%e7%ac%a6%e4%b8%b2%e6%9b%bf%e6%8f%9b%e7%9a%84%e6%96%b9%e6%b3%95%ef%bc%88mssql-%e5%ad%97%e7%ac%a6%e4%b8%b2%e6%9b%bf%e6%8f%9b%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/180694\/","title":{"rendered":"\u6df1\u5165\u4e86\u89e3mssql\u4e2d\u5b57\u7b26\u4e32\u66ff\u63db\u7684\u65b9\u6cd5\uff08mssql \u5b57\u7b26\u4e32\u66ff\u63db\uff09"},"content":{"rendered":"<h1 id=\"%e6%b7%b1%e5%85%a5%e4%ba%86%e8%a7%a3mssql%e4%b8%ad%e5%ad%97%e7%ac%a6%e4%b8%b2%e6%9b%bf%e6%8f%9b%e7%9a%84%e6%96%b9%e6%b3%95%ef%bc%88mssql-%e5%ad%97%e7%ac%a6%e4%b8%b2%e6%9b%bf%e6%8f%9b%ef%bc%89-llhxbDuWUA\">\u6df1\u5165\u4e86\u89e3MSSQL\u4e2d\u5b57\u7b26\u4e32\u66ff\u63db\u7684\u65b9\u6cd5\uff08MSSQL \u5b57\u7b26\u4e32\u66ff\u63db\uff09<\/h1>\n<p>\u5728\u8cc7\u6599\u5eab\u7ba1\u7406\u7cfb\u7d71\u4e2d\uff0c\u5b57\u7b26\u4e32\u8655\u7406\u662f\u4e00\u9805\u5e38\u898b\u7684\u9700\u6c42\uff0c\u5c24\u5176\u662f\u5728 Microsoft SQL Server\uff08MSSQL\uff09\u4e2d\u3002\u5b57\u7b26\u4e32\u66ff\u63db\u529f\u80fd\u53ef\u4ee5\u5e6b\u52a9\u7528\u6236\u5728\u6578\u64da\u4e2d\u9032\u884c\u6709\u6548\u7684\u4fee\u6539\u548c\u66f4\u65b0\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0e MSSQL \u4e2d\u5b57\u7b26\u4e32\u66ff\u63db\u7684\u65b9\u6cd5\uff0c\u5305\u62ec\u4f7f\u7528\u5167\u5efa\u51fd\u6578\u3001\u793a\u4f8b\u4ee3\u78bc\u4ee5\u53ca\u6700\u4f73\u5be6\u8e10\u3002<\/p>\n<h2 id=\"mssql-%e4%b8%ad%e7%9a%84%e5%ad%97%e7%ac%a6%e4%b8%b2%e6%9b%bf%e6%8f%9b%e5%87%bd%e6%95%b8-llhxbDuWUA\">MSSQL \u4e2d\u7684\u5b57\u7b26\u4e32\u66ff\u63db\u51fd\u6578<\/h2>\n<p>MSSQL \u63d0\u4f9b\u4e86\u591a\u7a2e\u51fd\u6578\u4f86\u8655\u7406\u5b57\u7b26\u4e32\uff0c\u5176\u4e2d\u6700\u5e38\u7528\u7684\u66ff\u63db\u51fd\u6578\u662f <code>REPLACE()<\/code> \u51fd\u6578\u3002\u9019\u500b\u51fd\u6578\u7684\u57fa\u672c\u8a9e\u6cd5\u5982\u4e0b\uff1a<\/p>\n<pre><code>REPLACE ( string_expression , string_pattern , string_replacement )<\/code><\/pre>\n<ul>\n<li><strong>string_expression<\/strong>\uff1a\u8981\u9032\u884c\u66ff\u63db\u7684\u539f\u59cb\u5b57\u7b26\u4e32\u3002<\/li>\n<li><strong>string_pattern<\/strong>\uff1a\u8981\u88ab\u66ff\u63db\u7684\u5b50\u5b57\u7b26\u4e32\u3002<\/li>\n<li><strong>string_replacement<\/strong>\uff1a\u7528\u65bc\u66ff\u63db\u7684\u5b57\u7b26\u4e32\u3002<\/li>\n<\/ul>\n<h3 id=\"%e4%bd%bf%e7%94%a8-replace-%e5%87%bd%e6%95%b8%e7%9a%84%e7%a4%ba%e4%be%8b-llhxbDuWUA\">\u4f7f\u7528 REPLACE \u51fd\u6578\u7684\u793a\u4f8b<\/h3>\n<p>\u4ee5\u4e0b\u662f\u4e00\u500b\u4f7f\u7528 <code>REPLACE()<\/code> \u51fd\u6578\u7684\u7c21\u55ae\u793a\u4f8b\uff1a<\/p>\n<pre><code>SELECT REPLACE('Hello World', 'World', 'SQL Server') AS Result;<\/code><\/pre>\n<p>\u57f7\u884c\u4e0a\u8ff0\u67e5\u8a62\u5f8c\uff0c\u7d50\u679c\u5c07\u986f\u793a\u70ba\uff1a<\/p>\n<pre><code>Result\n----------------\nHello SQL Server<\/code><\/pre>\n<p>\u9019\u500b\u4f8b\u5b50\u5c55\u793a\u4e86\u5982\u4f55\u5c07\u5b57\u7b26\u4e32\u4e2d\u7684\u300cWorld\u300d\u66ff\u63db\u70ba\u300cSQL Server\u300d\u3002<\/p>\n<h2 id=\"%e5%a4%9a%e9%87%8d%e6%9b%bf%e6%8f%9b%e7%9a%84%e5%af%a6%e7%8f%be-llhxbDuWUA\">\u591a\u91cd\u66ff\u63db\u7684\u5be6\u73fe<\/h2>\n<p>\u5728\u67d0\u4e9b\u60c5\u6cc1\u4e0b\uff0c\u53ef\u80fd\u9700\u8981\u5c0d\u540c\u4e00\u5b57\u7b26\u4e32\u9032\u884c\u591a\u6b21\u66ff\u63db\u3002\u96d6\u7136 <code>REPLACE()<\/code> \u51fd\u6578\u672c\u8eab\u4e0d\u652f\u6301\u591a\u91cd\u66ff\u63db\uff0c\u4f46\u53ef\u4ee5\u901a\u904e\u5d4c\u5957\u4f7f\u7528\u4f86\u5be6\u73fe\u3002\u4f8b\u5982\uff1a<\/p>\n<pre><code>SELECT REPLACE(REPLACE('Hello World, Welcome to World', 'World', 'SQL Server'), 'Welcome', 'Greetings') AS Result;<\/code><\/pre>\n<p>\u9019\u5c07\u8fd4\u56de\uff1a<\/p>\n<pre><code>Result\n-----------------------------------\nHello SQL Server, Greetings to SQL Server<\/code><\/pre>\n<h3 id=\"%e4%bd%bf%e7%94%a8-case-%e8%aa%9e%e5%8f%a5%e9%80%b2%e8%a1%8c%e6%a2%9d%e4%bb%b6%e6%9b%bf%e6%8f%9b-llhxbDuWUA\">\u4f7f\u7528 CASE \u8a9e\u53e5\u9032\u884c\u689d\u4ef6\u66ff\u63db<\/h3>\n<p>\u5728\u67d0\u4e9b\u60c5\u6cc1\u4e0b\uff0c\u60a8\u53ef\u80fd\u5e0c\u671b\u6839\u64da\u7279\u5b9a\u689d\u4ef6\u9032\u884c\u66ff\u63db\u3002\u9019\u6642\u53ef\u4ee5\u4f7f\u7528 <code>CASE<\/code> \u8a9e\u53e5\u4f86\u5be6\u73fe\u3002\u4f8b\u5982\uff1a<\/p>\n<pre><code>SELECT \n    CASE \n        WHEN Status = 'Active' THEN REPLACE(Name, 'John', 'Jane')\n        ELSE Name \n    END AS UpdatedName\nFROM Users;<\/code><\/pre>\n<p>\u9019\u6bb5\u4ee3\u78bc\u5c07\u6839\u64da\u7528\u6236\u7684\u72c0\u614b\u4f86\u6c7a\u5b9a\u662f\u5426\u66ff\u63db\u540d\u7a31\u4e2d\u7684\u300cJohn\u300d\u3002<\/p>\n<h2 id=\"%e6%9c%80%e4%bd%b3%e5%af%a6%e8%b8%90-llhxbDuWUA\">\u6700\u4f73\u5be6\u8e10<\/h2>\n<ul>\n<li><strong>\u907f\u514d\u4e0d\u5fc5\u8981\u7684\u66ff\u63db\uff1a<\/strong>\u5728\u9032\u884c\u5b57\u7b26\u4e32\u66ff\u63db\u6642\uff0c\u61c9\u8a72\u78ba\u4fdd\u66ff\u63db\u64cd\u4f5c\u662f\u5fc5\u8981\u7684\uff0c\u4ee5\u907f\u514d\u4e0d\u5fc5\u8981\u7684\u6027\u80fd\u640d\u8017\u3002<\/li>\n<li><strong>\u6e2c\u8a66\u66ff\u63db\u7d50\u679c\uff1a<\/strong>\u5728\u751f\u7522\u74b0\u5883\u4e2d\u9032\u884c\u66ff\u63db\u4e4b\u524d\uff0c\u61c9\u8a72\u5728\u6e2c\u8a66\u74b0\u5883\u4e2d\u9a57\u8b49\u66ff\u63db\u7d50\u679c\uff0c\u4ee5\u78ba\u4fdd\u6578\u64da\u7684\u5b8c\u6574\u6027\u3002<\/li>\n<li><strong>\u8003\u616e\u4f7f\u7528\u6b63\u5247\u8868\u9054\u5f0f\uff1a<\/strong>\u5c0d\u65bc\u66f4\u8907\u96dc\u7684\u5b57\u7b26\u4e32\u8655\u7406\u9700\u6c42\uff0c\u53ef\u4ee5\u8003\u616e\u4f7f\u7528 SQL CLR \u6216\u5176\u4ed6\u5de5\u5177\u4f86\u5be6\u73fe\u6b63\u5247\u8868\u9054\u5f0f\u7684\u652f\u6301\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-llhxbDuWUA\">\u7e3d\u7d50<\/h2>\n<p>MSSQL \u4e2d\u7684\u5b57\u7b26\u4e32\u66ff\u63db\u529f\u80fd\u662f\u6578\u64da\u8655\u7406\u4e2d\u4e0d\u53ef\u6216\u7f3a\u7684\u4e00\u90e8\u5206\u3002\u901a\u904e\u4f7f\u7528 <code>REPLACE()<\/code> \u51fd\u6578\u548c\u5176\u4ed6 SQL \u8a9e\u53e5\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u9748\u6d3b\u5730\u5c0d\u5b57\u7b26\u4e32\u9032\u884c\u4fee\u6539\u3002\u7121\u8ad6\u662f\u55ae\u4e00\u66ff\u63db\u9084\u662f\u591a\u91cd\u66ff\u63db\uff0c\u6b63\u78ba\u7684\u4f7f\u7528\u65b9\u6cd5\u90fd\u80fd\u63d0\u9ad8\u6578\u64da\u8655\u7406\u7684\u6548\u7387\u548c\u6e96\u78ba\u6027\u3002<\/p>\n<p>\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u9ad8\u6548\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u89e3\u6c7a\u65b9\u6848\u4f86\u652f\u6301\u60a8\u7684 MSSQL \u6578\u64da\u5eab\uff0cServer.HK \u63d0\u4f9b\u4e86\u591a\u7a2e\u9078\u64c7\uff0c\u6eff\u8db3\u4e0d\u540c\u9700\u6c42\u7684\u7528\u6236\u3002\u7121\u8ad6\u662f <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u9084\u662f\u5176\u4ed6\u670d\u52d9\uff0c\u6211\u5011\u90fd\u80fd\u70ba\u60a8\u63d0\u4f9b\u7a69\u5b9a\u7684\u652f\u6301\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6df1\u5165\u4e86\u89e3MSSQL\u4e2d\u5b57\u7b26\u4e32\u66ff\u6362\u7684\u65b9\u6cd5\uff0c\u638c\u63e1\u5e38\u7528\u51fd\u6570\u4e0e\u6280\u5de7\uff0c\u63d0\u5347\u6570\u636e\u5e93\u64cd\u4f5c\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-180694","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/180694","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=180694"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/180694\/revisions"}],"predecessor-version":[{"id":180695,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/180694\/revisions\/180695"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=180694"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=180694"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=180694"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}