{"id":96074,"date":"2024-10-20T06:23:16","date_gmt":"2024-10-19T22:23:16","guid":{"rendered":"https:\/\/server.hk\/cnblog\/96074\/"},"modified":"2024-10-20T06:23:17","modified_gmt":"2024-10-19T22:23:17","slug":"mysql%e6%8c%87%e4%bb%a4-dayname%ef%bc%88%e6%98%9f%e6%9c%9f%e5%b9%be%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/96074\/","title":{"rendered":"MySQL\u6307\u4ee4: DAYNAME()\uff08\u661f\u671f\u5e7e\uff09"},"content":{"rendered":"<h1 id=\"mysql%e6%8c%87%e4%bb%a4-dayname%ef%bc%88%e6%98%9f%e6%9c%9f%e5%b9%be%ef%bc%89-oDcxISqOui\">MySQL\u6307\u4ee4: DAYNAME()\uff08\u661f\u671f\u5e7e\uff09<\/h1>\n<p>\u5728\u6578\u64da\u5eab\u7ba1\u7406\u4e2d\uff0cMySQL\u662f\u4e00\u500b\u5ee3\u6cdb\u4f7f\u7528\u7684\u95dc\u806f\u6578\u64da\u5eab\u7ba1\u7406\u7cfb\u7d71\u3002\u5b83\u63d0\u4f9b\u4e86\u591a\u7a2e\u529f\u80fd\u5f37\u5927\u7684\u6307\u4ee4\u4f86\u8655\u7406\u548c\u67e5\u8a62\u6578\u64da\u3002\u5176\u4e2d\uff0cDAYNAME()\u51fd\u6578\u662f\u4e00\u500b\u975e\u5e38\u5be6\u7528\u7684\u5de5\u5177\uff0c\u80fd\u5920\u5e6b\u52a9\u7528\u6236\u5f9e\u65e5\u671f\u4e2d\u63d0\u53d6\u51fa\u661f\u671f\u5e7e\u7684\u540d\u7a31\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0eDAYNAME()\u51fd\u6578\u7684\u7528\u6cd5\u53ca\u5176\u61c9\u7528\u5834\u666f\u3002<\/p>\n<h2 id=\"dayname%e5%87%bd%e6%95%b8%e6%a6%82%e8%bf%b0-oDcxISqOui\">DAYNAME()\u51fd\u6578\u6982\u8ff0<\/h2>\n<p>DAYNAME()\u51fd\u6578\u7684\u4e3b\u8981\u529f\u80fd\u662f\u8fd4\u56de\u6307\u5b9a\u65e5\u671f\u7684\u661f\u671f\u5e7e\u540d\u7a31\u3002\u9019\u500b\u51fd\u6578\u7684\u8a9e\u6cd5\u5982\u4e0b\uff1a<\/p>\n<pre><code>DAYNAME(date)<\/code><\/pre>\n<p>\u5176\u4e2d\uff0c<code>date<\/code>\u53c3\u6578\u53ef\u4ee5\u662f\u65e5\u671f\u683c\u5f0f\u7684\u5b57\u7b26\u4e32\u3001\u65e5\u671f\u6642\u9593\u683c\u5f0f\u7684\u5b57\u7b26\u4e32\uff0c\u6216\u662f\u65e5\u671f\u6642\u9593\u985e\u578b\u7684\u5b57\u6bb5\u3002\u8a72\u51fd\u6578\u6703\u8fd4\u56de\u4e00\u500b\u5b57\u7b26\u4e32\uff0c\u8868\u793a\u8a72\u65e5\u671f\u6240\u5c0d\u61c9\u7684\u661f\u671f\u5e7e\uff0c\u4f8b\u5982\u201cMonday\u201d\u3001\u201cTuesday\u201d\u7b49\u3002<\/p>\n<h2 id=\"%e4%bd%bf%e7%94%a8%e7%af%84%e4%be%8b-oDcxISqOui\">\u4f7f\u7528\u7bc4\u4f8b<\/h2>\n<p>\u4ee5\u4e0b\u662f\u4e00\u4e9b\u4f7f\u7528DAYNAME()\u51fd\u6578\u7684\u7bc4\u4f8b\uff1a<\/p>\n<h3 id=\"%e7%af%84%e4%be%8b1-%e5%9f%ba%e6%9c%ac%e7%94%a8%e6%b3%95-oDcxISqOui\">\u7bc4\u4f8b1: \u57fa\u672c\u7528\u6cd5<\/h3>\n<p>\u5047\u8a2d\u6211\u5011\u6709\u4e00\u500b\u540d\u70ba<code>events<\/code>\u7684\u8868\u683c\uff0c\u5176\u4e2d\u5305\u542b\u4e00\u500b<code>event_date<\/code>\u5b57\u6bb5\uff0c\u8a18\u9304\u4e86\u4e8b\u4ef6\u7684\u65e5\u671f\u3002\u6211\u5011\u53ef\u4ee5\u4f7f\u7528DAYNAME()\u51fd\u6578\u4f86\u67e5\u8a62\u6bcf\u500b\u4e8b\u4ef6\u7684\u661f\u671f\u5e7e\uff1a<\/p>\n<pre><code>SELECT event_name, DAYNAME(event_date) AS weekday\nFROM events;<\/code><\/pre>\n<p>\u9019\u689d\u67e5\u8a62\u5c07\u8fd4\u56de\u6bcf\u500b\u4e8b\u4ef6\u7684\u540d\u7a31\u53ca\u5176\u5c0d\u61c9\u7684\u661f\u671f\u5e7e\u3002<\/p>\n<h3 id=\"%e7%af%84%e4%be%8b2-%e7%b5%90%e5%90%88where%e6%a2%9d%e4%bb%b6-oDcxISqOui\">\u7bc4\u4f8b2: \u7d50\u5408WHERE\u689d\u4ef6<\/h3>\n<p>\u5982\u679c\u6211\u5011\u53ea\u60f3\u67e5\u8a62\u67d0\u4e00\u5929\u7684\u4e8b\u4ef6\uff0c\u4f8b\u59822023\u5e7410\u67081\u65e5\u7684\u4e8b\u4ef6\uff0c\u53ef\u4ee5\u9019\u6a23\u5beb\uff1a<\/p>\n<pre><code>SELECT event_name\nFROM events\nWHERE DAYNAME(event_date) = 'Sunday';<\/code><\/pre>\n<p>\u9019\u6a23\u7684\u67e5\u8a62\u5c07\u8fd4\u56de\u6240\u6709\u5728\u661f\u671f\u65e5\u8209\u884c\u7684\u4e8b\u4ef6\u3002<\/p>\n<h3 id=\"%e7%af%84%e4%be%8b3-%e8%88%87%e5%85%b6%e4%bb%96%e5%87%bd%e6%95%b8%e7%b5%90%e5%90%88%e4%bd%bf%e7%94%a8-oDcxISqOui\">\u7bc4\u4f8b3: \u8207\u5176\u4ed6\u51fd\u6578\u7d50\u5408\u4f7f\u7528<\/h3>\n<p>DAYNAME()\u51fd\u6578\u4e5f\u53ef\u4ee5\u8207\u5176\u4ed6\u65e5\u671f\u51fd\u6578\u7d50\u5408\u4f7f\u7528\u3002\u4f8b\u5982\uff0c\u6211\u5011\u53ef\u4ee5\u67e5\u8a62\u67d0\u500b\u6708\u5167\u6bcf\u4e00\u5929\u7684\u661f\u671f\u5e7e\uff1a<\/p>\n<pre><code>SELECT event_date, DAYNAME(event_date) AS weekday\nFROM events\nWHERE MONTH(event_date) = 10;<\/code><\/pre>\n<p>\u9019\u689d\u67e5\u8a62\u5c07\u8fd4\u56de10\u6708\u4efd\u6240\u6709\u4e8b\u4ef6\u7684\u65e5\u671f\u53ca\u5176\u5c0d\u61c9\u7684\u661f\u671f\u5e7e\u3002<\/p>\n<h2 id=\"%e6%87%89%e7%94%a8%e5%a0%b4%e6%99%af-oDcxISqOui\">\u61c9\u7528\u5834\u666f<\/h2>\n<p>DAYNAME()\u51fd\u6578\u5728\u8a31\u591a\u5834\u666f\u4e2d\u90fd\u975e\u5e38\u6709\u7528\uff0c\u7279\u5225\u662f\u5728\u9700\u8981\u6839\u64da\u65e5\u671f\u9032\u884c\u5831\u544a\u6216\u5206\u6790\u7684\u60c5\u6cc1\u4e0b\u3002\u4f8b\u5982\uff1a<\/p>\n<ul>\n<li><strong>\u5831\u544a\u751f\u6210\uff1a<\/strong>\u5728\u751f\u6210\u6bcf\u5468\u6216\u6bcf\u6708\u5831\u544a\u6642\uff0c\u53ef\u4ee5\u4f7f\u7528DAYNAME()\u4f86\u6a19\u8a18\u6578\u64da\u7684\u65e5\u671f\u3002<\/li>\n<li><strong>\u6578\u64da\u5206\u6790\uff1a<\/strong>\u5206\u6790\u67d0\u4e9b\u4e8b\u4ef6\u5728\u7279\u5b9a\u661f\u671f\u5e7e\u7684\u983b\u7387\uff0c\u5e6b\u52a9\u4f01\u696d\u505a\u51fa\u66f4\u597d\u7684\u6c7a\u7b56\u3002<\/li>\n<li><strong>\u65e5\u66c6\u61c9\u7528\uff1a<\/strong>\u5728\u65e5\u66c6\u61c9\u7528\u4e2d\uff0c\u986f\u793a\u6bcf\u500b\u65e5\u671f\u7684\u661f\u671f\u5e7e\uff0c\u63d0\u5347\u7528\u6236\u9ad4\u9a57\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-oDcxISqOui\">\u7e3d\u7d50<\/h2>\n<p>DAYNAME()\u51fd\u6578\u662f\u4e00\u500b\u5f37\u5927\u7684\u5de5\u5177\uff0c\u80fd\u5920\u5e6b\u52a9\u7528\u6236\u5f9e\u65e5\u671f\u4e2d\u63d0\u53d6\u51fa\u661f\u671f\u5e7e\u7684\u540d\u7a31\uff0c\u4e26\u5728\u591a\u7a2e\u5834\u666f\u4e2d\u767c\u63ee\u4f5c\u7528\u3002\u7121\u8ad6\u662f\u5728\u6578\u64da\u5206\u6790\u3001\u5831\u544a\u751f\u6210\u9084\u662f\u65e5\u66c6\u61c9\u7528\u4e2d\uff0c\u9019\u500b\u51fd\u6578\u90fd\u80fd\u63d0\u4f9b\u91cd\u8981\u7684\u652f\u6301\u3002\u5c0d\u65bc\u9700\u8981\u8655\u7406\u5927\u91cf\u65e5\u671f\u6578\u64da\u7684\u958b\u767c\u8005\u548c\u6578\u64da\u5206\u6790\u5e2b\u4f86\u8aaa\uff0c\u638c\u63e1DAYNAME()\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\u6578\u64da\u5eab\u89e3\u6c7a\u65b9\u6848\uff0c\u8003\u616e\u4f7f\u7528\u6211\u5011\u7684<a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a>\u670d\u52d9\uff0c\u70ba\u60a8\u7684\u61c9\u7528\u63d0\u4f9b\u7a69\u5b9a\u7684\u652f\u6301\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e86\u89e3MySQL\u6307\u4ee4DAYNAME()\uff0c\u8f15\u9b06\u7372\u53d6\u65e5\u671f\u5c0d\u61c9\u7684\u661f\u671f\u5e7e\uff0c\u63d0\u5347\u6578\u64da\u67e5\u8a62\u6548\u7387\u8207\u6e96\u78ba\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-96074","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/96074","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=96074"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/96074\/revisions"}],"predecessor-version":[{"id":96075,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/96074\/revisions\/96075"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=96074"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=96074"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=96074"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}