{"id":80064,"date":"2024-10-16T13:53:55","date_gmt":"2024-10-16T05:53:55","guid":{"rendered":"https:\/\/server.hk\/cnblog\/80064\/"},"modified":"2024-10-16T13:53:55","modified_gmt":"2024-10-16T05:53:55","slug":"mysql%e6%8c%87%e4%bb%a4-ucase%ef%bc%88%e8%bd%89%e7%82%ba%e5%a4%a7%e5%af%ab%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/80064\/","title":{"rendered":"MySQL\u6307\u4ee4: UCASE()\uff08\u8f49\u70ba\u5927\u5beb\uff09"},"content":{"rendered":"<h1 id=\"mysql%e6%8c%87%e4%bb%a4-ucase%ef%bc%88%e8%bd%89%e7%82%ba%e5%a4%a7%e5%af%ab%ef%bc%89-hnwaEtBRHb\">MySQL\u6307\u4ee4: UCASE()\uff08\u8f49\u70ba\u5927\u5beb\uff09<\/h1>\n<p>\u5728\u8cc7\u6599\u5eab\u7ba1\u7406\u7cfb\u7d71\u4e2d\uff0cMySQL\u662f\u4e00\u500b\u5ee3\u6cdb\u4f7f\u7528\u7684\u958b\u6e90\u95dc\u806f\u8cc7\u6599\u5eab\u7ba1\u7406\u7cfb\u7d71\u3002\u5b83\u63d0\u4f9b\u4e86\u591a\u7a2e\u529f\u80fd\u4f86\u8655\u7406\u548c\u64cd\u4f5c\u8cc7\u6599\uff0c\u5176\u4e2d\u4e4b\u4e00\u5c31\u662f\u5b57\u4e32\u8655\u7406\u51fd\u6578\u3002UCASE()\u51fd\u6578\u662fMySQL\u4e2d\u4e00\u500b\u975e\u5e38\u5be6\u7528\u7684\u51fd\u6578\uff0c\u7528\u65bc\u5c07\u5b57\u4e32\u8f49\u63db\u70ba\u5927\u5beb\u5f62\u5f0f\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0eUCASE()\u51fd\u6578\u7684\u7528\u6cd5\u3001\u7bc4\u4f8b\u53ca\u5176\u5728\u5be6\u969b\u61c9\u7528\u4e2d\u7684\u91cd\u8981\u6027\u3002<\/p>\n<h2 id=\"ucase%e5%87%bd%e6%95%b8%e7%9a%84%e5%9f%ba%e6%9c%ac%e8%aa%9e%e6%b3%95-hnwaEtBRHb\">UCASE()\u51fd\u6578\u7684\u57fa\u672c\u8a9e\u6cd5<\/h2>\n<p>UCASE()\u51fd\u6578\u7684\u57fa\u672c\u8a9e\u6cd5\u5982\u4e0b\uff1a<\/p>\n<pre><code>UCASE(string)<\/code><\/pre>\n<p>\u5176\u4e2d\uff0c<code>string<\/code>\u662f\u8981\u8f49\u63db\u70ba\u5927\u5beb\u7684\u5b57\u4e32\u3002\u9019\u500b\u51fd\u6578\u6703\u8fd4\u56de\u4e00\u500b\u65b0\u7684\u5b57\u4e32\uff0c\u8a72\u5b57\u4e32\u4e2d\u7684\u6240\u6709\u5b57\u6bcd\u90fd\u88ab\u8f49\u63db\u70ba\u5927\u5beb\u3002<\/p>\n<h2 id=\"ucase%e5%87%bd%e6%95%b8%e7%9a%84%e4%bd%bf%e7%94%a8%e7%af%84%e4%be%8b-hnwaEtBRHb\">UCASE()\u51fd\u6578\u7684\u4f7f\u7528\u7bc4\u4f8b<\/h2>\n<p>\u4ee5\u4e0b\u662f\u4e00\u4e9b\u4f7f\u7528UCASE()\u51fd\u6578\u7684\u7bc4\u4f8b\uff0c\u5e6b\u52a9\u60a8\u66f4\u597d\u5730\u7406\u89e3\u5176\u7528\u6cd5\uff1a<\/p>\n<h3 id=\"%e7%af%84%e4%be%8b1%ef%bc%9a%e5%9f%ba%e6%9c%ac%e7%94%a8%e6%b3%95-hnwaEtBRHb\">\u7bc4\u4f8b1\uff1a\u57fa\u672c\u7528\u6cd5<\/h3>\n<p>\u5047\u8a2d\u6211\u5011\u6709\u4e00\u500b\u540d\u70ba<code>users<\/code>\u7684\u8cc7\u6599\u8868\uff0c\u8a72\u8cc7\u6599\u8868\u5305\u542b\u7528\u6236\u7684\u59d3\u540d\u3002\u82e5\u8981\u5c07\u6240\u6709\u7528\u6236\u7684\u59d3\u540d\u8f49\u63db\u70ba\u5927\u5beb\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0bSQL\u67e5\u8a62\uff1a<\/p>\n<pre><code>SELECT UCASE(name) AS uppercase_name FROM users;<\/code><\/pre>\n<p>\u9019\u689d\u67e5\u8a62\u5c07\u8fd4\u56de\u4e00\u500b\u540d\u70ba<code>uppercase_name<\/code>\u7684\u6b04\u4f4d\uff0c\u8a72\u6b04\u4f4d\u4e2d\u7684\u6240\u6709\u59d3\u540d\u90fd\u5c07\u4ee5\u5927\u5beb\u5f62\u5f0f\u986f\u793a\u3002<\/p>\n<h3 id=\"%e7%af%84%e4%be%8b2%ef%bc%9a%e8%88%87where%e5%ad%90%e5%8f%a5%e7%b5%90%e5%90%88%e4%bd%bf%e7%94%a8-hnwaEtBRHb\">\u7bc4\u4f8b2\uff1a\u8207WHERE\u5b50\u53e5\u7d50\u5408\u4f7f\u7528<\/h3>\n<p>UCASE()\u51fd\u6578\u4e5f\u53ef\u4ee5\u8207<code>WHERE<\/code>\u5b50\u53e5\u7d50\u5408\u4f7f\u7528\uff0c\u4ee5\u4fbf\u5728\u67e5\u8a62\u4e2d\u9032\u884c\u689d\u4ef6\u7be9\u9078\u3002\u4f8b\u5982\uff0c\u82e5\u8981\u67e5\u8a62\u6240\u6709\u59d3\u540d\u70ba\u201cJOHN\u201d\u7684\u7528\u6236\uff0c\u53ef\u4ee5\u9019\u6a23\u5beb\uff1a<\/p>\n<pre><code>SELECT * FROM users WHERE UCASE(name) = 'JOHN';<\/code><\/pre>\n<p>\u9019\u689d\u67e5\u8a62\u5c07\u8fd4\u56de\u6240\u6709\u59d3\u540d\u70ba\u201cJOHN\u201d\u7684\u7528\u6236\uff0c\u5373\u4f7f\u4ed6\u5011\u7684\u59d3\u540d\u5728\u8cc7\u6599\u5eab\u4e2d\u662f\u4ee5\u5c0f\u5beb\u6216\u6df7\u5408\u5927\u5c0f\u5beb\u5b58\u5132\u7684\u3002<\/p>\n<h2 id=\"ucase%e5%87%bd%e6%95%b8%e7%9a%84%e6%87%89%e7%94%a8%e5%a0%b4%e6%99%af-hnwaEtBRHb\">UCASE()\u51fd\u6578\u7684\u61c9\u7528\u5834\u666f<\/h2>\n<p>UCASE()\u51fd\u6578\u5728\u8a31\u591a\u5834\u666f\u4e2d\u90fd\u975e\u5e38\u6709\u7528\uff0c\u7279\u5225\u662f\u5728\u9700\u8981\u9032\u884c\u5b57\u4e32\u6bd4\u8f03\u6216\u986f\u793a\u6642\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u898b\u7684\u61c9\u7528\u5834\u666f\uff1a<\/p>\n<ul>\n<li><strong>\u8cc7\u6599\u6e05\u7406\uff1a<\/strong>\u5728\u5c0e\u5165\u8cc7\u6599\u6642\uff0c\u53ef\u80fd\u6703\u9047\u5230\u5927\u5c0f\u5beb\u4e0d\u4e00\u81f4\u7684\u554f\u984c\u3002\u4f7f\u7528UCASE()\u51fd\u6578\u53ef\u4ee5\u7d71\u4e00\u8cc7\u6599\u683c\u5f0f\u3002<\/li>\n<li><strong>\u7528\u6236\u9a57\u8b49\uff1a<\/strong>\u5728\u7528\u6236\u767b\u9304\u6642\uff0c\u70ba\u4e86\u63d0\u9ad8\u7528\u6236\u9ad4\u9a57\uff0c\u53ef\u4ee5\u5c07\u8f38\u5165\u7684\u7528\u6236\u540d\u8f49\u63db\u70ba\u5927\u5beb\uff0c\u8207\u8cc7\u6599\u5eab\u4e2d\u7684\u8cc7\u6599\u9032\u884c\u6bd4\u8f03\u3002<\/li>\n<li><strong>\u5831\u544a\u751f\u6210\uff1a<\/strong>\u5728\u751f\u6210\u5831\u544a\u6642\uff0c\u5c07\u6240\u6709\u5b57\u4e32\u8f49\u63db\u70ba\u5927\u5beb\u53ef\u4ee5\u63d0\u9ad8\u53ef\u8b80\u6027\uff0c\u7279\u5225\u662f\u5728\u6a19\u984c\u6216\u91cd\u8981\u8cc7\u8a0a\u4e2d\u3002<\/li>\n<\/ul>\n<h2 id=\"%e6%b3%a8%e6%84%8f%e4%ba%8b%e9%a0%85-hnwaEtBRHb\">\u6ce8\u610f\u4e8b\u9805<\/h2>\n<p>\u96d6\u7136UCASE()\u51fd\u6578\u975e\u5e38\u6709\u7528\uff0c\u4f46\u5728\u4f7f\u7528\u6642\u4e5f\u9700\u8981\u6ce8\u610f\u4ee5\u4e0b\u5e7e\u9ede\uff1a<\/p>\n<ul>\n<li>UCASE()\u51fd\u6578\u50c5\u5f71\u97ff\u5b57\u6bcd\uff0c\u6578\u5b57\u548c\u7279\u6b8a\u5b57\u7b26\u4e0d\u6703\u53d7\u5230\u5f71\u97ff\u3002<\/li>\n<li>\u5728\u67d0\u4e9b\u60c5\u6cc1\u4e0b\uff0c\u4f7f\u7528UCASE()\u53ef\u80fd\u6703\u5f71\u97ff\u67e5\u8a62\u6027\u80fd\uff0c\u7279\u5225\u662f\u5728\u5927\u578b\u8cc7\u6599\u96c6\u4e0a\u9032\u884c\u64cd\u4f5c\u6642\u3002<\/li>\n<li>\u78ba\u4fdd\u5728\u4f7f\u7528UCASE()\u6642\u8003\u616e\u5230\u8cc7\u6599\u7684\u539f\u59cb\u683c\u5f0f\uff0c\u4ee5\u907f\u514d\u4e0d\u5fc5\u8981\u7684\u8cc7\u6599\u640d\u5931\u6216\u932f\u8aa4\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-hnwaEtBRHb\">\u7e3d\u7d50<\/h2>\n<p>UCASE()\u51fd\u6578\u662fMySQL\u4e2d\u4e00\u500b\u5f37\u5927\u7684\u5b57\u4e32\u8655\u7406\u5de5\u5177\uff0c\u80fd\u5920\u6709\u6548\u5730\u5c07\u5b57\u4e32\u8f49\u63db\u70ba\u5927\u5beb\uff0c\u4e26\u5728\u591a\u7a2e\u5834\u666f\u4e2d\u767c\u63ee\u91cd\u8981\u4f5c\u7528\u3002\u7121\u8ad6\u662f\u5728\u8cc7\u6599\u6e05\u7406\u3001\u7528\u6236\u9a57\u8b49\u9084\u662f\u5831\u544a\u751f\u6210\u4e2d\uff0cUCASE()\u90fd\u80fd\u63d0\u9ad8\u8cc7\u6599\u7684\u4e00\u81f4\u6027\u548c\u53ef\u8b80\u6027\u3002\u5c0d\u65bc\u9700\u8981\u9032\u884c\u5b57\u4e32\u64cd\u4f5c\u7684\u958b\u767c\u8005\u4f86\u8aaa\uff0c\u638c\u63e1UCASE()\u51fd\u6578\u7684\u4f7f\u7528\u662f\u975e\u5e38\u5fc5\u8981\u7684\u3002<\/p>\n<p>\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u9ad8\u6548\u7684 <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u89e3\u6c7a\u65b9\u6848\uff0cServer.HK \u63d0\u4f9b\u591a\u7a2e\u9078\u64c7\uff0c\u6eff\u8db3\u60a8\u7684\u9700\u6c42\u3002\u7121\u8ad6\u662f\u8cc7\u6599\u5eab\u7ba1\u7406\u9084\u662f\u7db2\u7ad9\u6258\u7ba1\uff0c\u6211\u5011\u7684 <a href=\"https:\/\/server.hk\">\u4f3a\u670d\u5668<\/a> \u90fd\u80fd\u70ba\u60a8\u63d0\u4f9b\u7a69\u5b9a\u7684\u652f\u6301\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e86\u89e3MySQL\u6307\u4ee4UCASE()\uff0c\u8f15\u9b06\u5c07\u5b57\u4e32\u8f49\u70ba\u5927\u5beb\uff0c\u63d0\u5347\u6578\u64da\u67e5\u8a62\u8207\u986f\u793a\u7684\u9748\u6d3b\u6027\u8207\u53ef\u8b80\u6027\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-80064","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/80064","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=80064"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/80064\/revisions"}],"predecessor-version":[{"id":80065,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/80064\/revisions\/80065"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=80064"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=80064"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=80064"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}