{"id":66375,"date":"2024-10-14T16:58:16","date_gmt":"2024-10-14T08:58:16","guid":{"rendered":"https:\/\/server.hk\/cnblog\/66375\/"},"modified":"2024-10-14T16:58:16","modified_gmt":"2024-10-14T08:58:16","slug":"mssql%e4%b8%ad%e9%80%9a%e9%85%8d%e7%ac%a6%e4%bd%bf%e7%94%a8%e6%8a%80%e5%b7%a7%ef%bc%88mssql%e9%80%9a%e9%85%8d%e7%ac%a6%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/66375\/","title":{"rendered":"MSSQL\u4e2d\u901a\u914d\u7b26\u4f7f\u7528\u6280\u5de7\uff08mssql\u901a\u914d\u7b26\uff09"},"content":{"rendered":"<h1 id=\"mssql%e4%b8%ad%e9%80%9a%e9%85%8d%e7%ac%a6%e4%bd%bf%e7%94%a8%e6%8a%80%e5%b7%a7%ef%bc%88mssql%e9%80%9a%e9%85%8d%e7%ac%a6%ef%bc%89-ddMbfoFXgq\">MSSQL\u4e2d\u901a\u914d\u7b26\u4f7f\u7528\u6280\u5de7\uff08mssql\u901a\u914d\u7b26\uff09<\/h1>\n<p>\u5728\u4f7f\u7528Microsoft SQL Server\uff08MSSQL\uff09\u9032\u884c\u6578\u64da\u67e5\u8a62\u6642\uff0c\u901a\u914d\u7b26\u662f\u4e00\u500b\u975e\u5e38\u6709\u7528\u7684\u5de5\u5177\u3002\u901a\u914d\u7b26\u53ef\u4ee5\u5e6b\u52a9\u7528\u6236\u5728\u67e5\u8a62\u4e2d\u9032\u884c\u6a21\u7cca\u5339\u914d\uff0c\u5f9e\u800c\u63d0\u9ad8\u67e5\u8a62\u7684\u9748\u6d3b\u6027\u548c\u6548\u7387\u3002\u672c\u6587\u5c07\u4ecb\u7d39MSSQL\u4e2d\u901a\u914d\u7b26\u7684\u4f7f\u7528\u6280\u5de7\uff0c\u4e26\u63d0\u4f9b\u4e00\u4e9b\u5be6\u7528\u7684\u7bc4\u4f8b\u3002<\/p>\n<h2 id=\"%e9%80%9a%e9%85%8d%e7%ac%a6%e7%9a%84%e5%9f%ba%e6%9c%ac%e6%a6%82%e5%bf%b5-ddMbfoFXgq\">\u901a\u914d\u7b26\u7684\u57fa\u672c\u6982\u5ff5<\/h2>\n<p>\u5728MSSQL\u4e2d\uff0c\u901a\u914d\u7b26\u4e3b\u8981\u7528\u65bcLIKE\u8a9e\u53e5\u4e2d\uff0c\u4ee5\u4fbf\u9032\u884c\u6a21\u7cca\u67e5\u8a62\u3002\u5e38\u7528\u7684\u901a\u914d\u7b26\u6709\uff1a<\/p>\n<ul>\n<li><strong>%<\/strong>\uff1a\u4ee3\u8868\u96f6\u500b\u6216\u591a\u500b\u5b57\u7b26\u3002\u4f8b\u5982\uff0c&#8217;A%&#8217;\u53ef\u4ee5\u5339\u914d\u4ee5&#8217;A&#8217;\u958b\u982d\u7684\u6240\u6709\u5b57\u7b26\u4e32\u3002<\/li>\n<li><strong>_<\/strong>\uff1a\u4ee3\u8868\u55ae\u500b\u5b57\u7b26\u3002\u4f8b\u5982\uff0c&#8217;A_&#8217;\u53ef\u4ee5\u5339\u914d\u4ee5&#8217;A&#8217;\u958b\u982d\u4e14\u6709\u4e00\u500b\u5b57\u7b26\u7684\u6240\u6709\u5b57\u7b26\u4e32\uff0c\u5982&#8217;AB&#8217;\u6216&#8217;AC&#8217;\u3002<\/li>\n<\/ul>\n<h2 id=\"%e4%bd%bf%e7%94%a8%e9%80%9a%e9%85%8d%e7%ac%a6%e7%9a%84%e5%9f%ba%e6%9c%ac%e8%aa%9e%e6%b3%95-ddMbfoFXgq\">\u4f7f\u7528\u901a\u914d\u7b26\u7684\u57fa\u672c\u8a9e\u6cd5<\/h2>\n<p>\u5728MSSQL\u4e2d\uff0c\u4f7f\u7528\u901a\u914d\u7b26\u7684\u57fa\u672c\u8a9e\u6cd5\u5982\u4e0b\uff1a<\/p>\n<pre><code>SELECT column_name\nFROM table_name\nWHERE column_name LIKE pattern;<\/code><\/pre>\n<p>\u5176\u4e2d\uff0c<code>pattern<\/code>\u53ef\u4ee5\u5305\u542b\u901a\u914d\u7b26\u3002\u4f8b\u5982\uff1a<\/p>\n<pre><code>SELECT * \nFROM Employees \nWHERE FirstName LIKE 'J%';<\/code><\/pre>\n<p>\u9019\u689d\u67e5\u8a62\u5c07\u8fd4\u56de\u6240\u6709\u540d\u5b57\u4ee5&#8217;J&#8217;\u958b\u982d\u7684\u54e1\u5de5\u3002<\/p>\n<h2 id=\"%e9%80%9a%e9%85%8d%e7%ac%a6%e7%9a%84%e4%bd%bf%e7%94%a8%e6%8a%80%e5%b7%a7-ddMbfoFXgq\">\u901a\u914d\u7b26\u7684\u4f7f\u7528\u6280\u5de7<\/h2>\n<h3 id=\"1-%e7%b5%84%e5%90%88%e4%bd%bf%e7%94%a8%e9%80%9a%e9%85%8d%e7%ac%a6-ddMbfoFXgq\">1. \u7d44\u5408\u4f7f\u7528\u901a\u914d\u7b26<\/h3>\n<p>\u901a\u914d\u7b26\u53ef\u4ee5\u7d44\u5408\u4f7f\u7528\uff0c\u4ee5\u9054\u5230\u66f4\u8907\u96dc\u7684\u67e5\u8a62\u9700\u6c42\u3002\u4f8b\u5982\uff1a<\/p>\n<pre><code>SELECT * \nFROM Products \nWHERE ProductName LIKE '%s%';<\/code><\/pre>\n<p>\u9019\u689d\u67e5\u8a62\u5c07\u8fd4\u56de\u6240\u6709\u7522\u54c1\u540d\u7a31\u4e2d\u5305\u542b\u5b57\u6bcd&#8217;s&#8217;\u7684\u7522\u54c1\u3002<\/p>\n<h3 id=\"2-%e4%bd%bf%e7%94%a8%e9%80%9a%e9%85%8d%e7%ac%a6%e9%80%b2%e8%a1%8c%e7%af%84%e5%9c%8d%e6%9f%a5%e8%a9%a2-ddMbfoFXgq\">2. \u4f7f\u7528\u901a\u914d\u7b26\u9032\u884c\u7bc4\u570d\u67e5\u8a62<\/h3>\n<p>\u901a\u914d\u7b26\u4e5f\u53ef\u4ee5\u7528\u65bc\u7bc4\u570d\u67e5\u8a62\u3002\u4f8b\u5982\uff0c\u67e5\u8a62\u4ee5&#8217;A&#8217;\u5230&#8217;C&#8217;\u958b\u982d\u7684\u6240\u6709\u540d\u5b57\uff1a<\/p>\n<pre><code>SELECT * \nFROM Employees \nWHERE FirstName LIKE '[A-C]%';<\/code><\/pre>\n<p>\u9019\u689d\u67e5\u8a62\u5c07\u8fd4\u56de\u6240\u6709\u540d\u5b57\u4ee5&#8217;A&#8217;\u3001&#8217;B&#8217;\u6216&#8217;C&#8217;\u958b\u982d\u7684\u54e1\u5de5\u3002<\/p>\n<h3 id=\"3-%e5%bf%bd%e7%95%a5%e5%a4%a7%e5%b0%8f%e5%af%ab-ddMbfoFXgq\">3. \u5ffd\u7565\u5927\u5c0f\u5beb<\/h3>\n<p>\u5728MSSQL\u4e2d\uff0cLIKE\u8a9e\u53e5\u7684\u5927\u5c0f\u5beb\u654f\u611f\u6027\u53d6\u6c7a\u65bc\u6578\u64da\u5eab\u7684\u6392\u5e8f\u898f\u5247\u3002\u5982\u679c\u9700\u8981\u9032\u884c\u4e0d\u5340\u5206\u5927\u5c0f\u5beb\u7684\u67e5\u8a62\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u8a9e\u6cd5\uff1a<\/p>\n<pre><code>SELECT * \nFROM Employees \nWHERE LOWER(FirstName) LIKE LOWER('j%');<\/code><\/pre>\n<p>\u9019\u6a23\u53ef\u4ee5\u78ba\u4fdd\u67e5\u8a62\u7d50\u679c\u4e0d\u53d7\u5927\u5c0f\u5beb\u5f71\u97ff\u3002<\/p>\n<h3 id=\"4-%e4%bd%bf%e7%94%a8not-like%e9%80%b2%e8%a1%8c%e6%8e%92%e9%99%a4%e6%9f%a5%e8%a9%a2-ddMbfoFXgq\">4. \u4f7f\u7528NOT LIKE\u9032\u884c\u6392\u9664\u67e5\u8a62<\/h3>\n<p>\u901a\u914d\u7b26\u4e0d\u50c5\u53ef\u4ee5\u7528\u65bc\u5339\u914d\uff0c\u9084\u53ef\u4ee5\u7528\u65bc\u6392\u9664\u7279\u5b9a\u6a21\u5f0f\u3002\u4f8b\u5982\uff0c\u67e5\u8a62\u4e0d\u4ee5&#8217;A&#8217;\u958b\u982d\u7684\u6240\u6709\u540d\u5b57\uff1a<\/p>\n<pre><code>SELECT * \nFROM Employees \nWHERE FirstName NOT LIKE 'A%';<\/code><\/pre>\n<p>\u9019\u689d\u67e5\u8a62\u5c07\u8fd4\u56de\u6240\u6709\u4e0d\u4ee5&#8217;A&#8217;\u958b\u982d\u7684\u54e1\u5de5\u3002<\/p>\n<h2 id=\"%e7%b8%bd%e7%b5%90-ddMbfoFXgq\">\u7e3d\u7d50<\/h2>\n<p>\u901a\u914d\u7b26\u5728MSSQL\u4e2d\u662f\u4e00\u500b\u5f37\u5927\u7684\u5de5\u5177\uff0c\u53ef\u4ee5\u5e6b\u52a9\u7528\u6236\u9032\u884c\u9748\u6d3b\u7684\u6578\u64da\u67e5\u8a62\u3002\u901a\u904e\u638c\u63e1\u901a\u914d\u7b26\u7684\u4f7f\u7528\u6280\u5de7\uff0c\u60a8\u53ef\u4ee5\u66f4\u9ad8\u6548\u5730\u5f9e\u6578\u64da\u5eab\u4e2d\u63d0\u53d6\u6240\u9700\u7684\u4fe1\u606f\u3002\u7121\u8ad6\u662f\u6a21\u7cca\u5339\u914d\u3001\u7bc4\u570d\u67e5\u8a62\u9084\u662f\u6392\u9664\u7279\u5b9a\u6a21\u5f0f\uff0c\u901a\u914d\u7b26\u90fd\u80fd\u63d0\u4f9b\u6975\u5927\u7684\u4fbf\u5229\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\uff0cServer.HK \u63d0\u4f9b\u591a\u7a2e\u9078\u64c7\uff0c\u6eff\u8db3\u60a8\u7684\u9700\u6c42\u3002\u7121\u8ad6\u662f <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u9084\u662f\u5176\u4ed6 <a href=\"https:\/\/server.hk\">\u4e91\u670d\u52a1\u5668<\/a> \u670d\u52d9\uff0c\u6211\u5011\u90fd\u80fd\u70ba\u60a8\u63d0\u4f9b\u652f\u6301\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22MSSQL\u4e2d\u901a\u914d\u7b26\u7684\u4f7f\u7528\u6280\u5de7\uff0c\u63d0\u5347\u67e5\u8be2\u6548\u7387\uff0c\u638c\u63e1LIKE\u8bed\u53e5\u7684\u7075\u6d3b\u5e94\u7528\uff0c\u8f7b\u677e\u5904\u7406\u6a21\u7cca\u5339\u914d\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-66375","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/66375","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=66375"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/66375\/revisions"}],"predecessor-version":[{"id":66376,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/66375\/revisions\/66376"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=66375"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=66375"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=66375"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}