{"id":78264,"date":"2024-10-16T11:39:16","date_gmt":"2024-10-16T03:39:16","guid":{"rendered":"https:\/\/server.hk\/cnblog\/78264\/"},"modified":"2024-10-16T11:39:16","modified_gmt":"2024-10-16T03:39:16","slug":"mysql%e6%8c%87%e4%bb%a4-dayofmonth%ef%bc%88%e6%9c%88%e4%bb%bd%e7%9a%84%e5%a4%a9%e6%95%b8%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/78264\/","title":{"rendered":"MySQL\u6307\u4ee4: DAYOFMONTH()\uff08\u6708\u4efd\u7684\u5929\u6578\uff09"},"content":{"rendered":"<h1 id=\"mysql%e6%8c%87%e4%bb%a4-dayofmonth%ef%bc%88%e6%9c%88%e4%bb%bd%e7%9a%84%e5%a4%a9%e6%95%b8%ef%bc%89-QzpCNEliPL\">MySQL\u6307\u4ee4: DAYOFMONTH()\uff08\u6708\u4efd\u7684\u5929\u6578\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\u5f37\u5927\u7684\u6307\u4ee4\u4f86\u8655\u7406\u548c\u67e5\u8a62\u8cc7\u6599\u3002\u5176\u4e2d\uff0c<code>DAYOFMONTH()<\/code>\u662f\u4e00\u500b\u975e\u5e38\u5be6\u7528\u7684\u51fd\u6578\uff0c\u7528\u65bc\u7372\u53d6\u7279\u5b9a\u65e5\u671f\u7684\u5929\u6578\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0e<code>DAYOFMONTH()<\/code>\u7684\u7528\u6cd5\u53ca\u5176\u61c9\u7528\u5834\u666f\u3002<\/p>\n<h2 id=\"dayofmonth%e5%87%bd%e6%95%b8%e6%a6%82%e8%bf%b0-QzpCNEliPL\">DAYOFMONTH()\u51fd\u6578\u6982\u8ff0<\/h2>\n<p><code>DAYOFMONTH()<\/code>\u51fd\u6578\u7684\u4e3b\u8981\u529f\u80fd\u662f\u8fd4\u56de\u6307\u5b9a\u65e5\u671f\u7684\u5929\u6578\u3002\u9019\u500b\u51fd\u6578\u7684\u8a9e\u6cd5\u5982\u4e0b\uff1a<\/p>\n<pre><code>DAYOFMONTH(date)<\/code><\/pre>\n<p>\u5176\u4e2d\uff0c<code>date<\/code>\u662f\u8981\u67e5\u8a62\u7684\u65e5\u671f\uff0c\u53ef\u4ee5\u662f\u65e5\u671f\u5b57\u4e32\u6216\u65e5\u671f\u578b\u5225\u7684\u6b04\u4f4d\u3002\u8a72\u51fd\u6578\u6703\u8fd4\u56de\u4e00\u500b\u6574\u6578\uff0c\u8868\u793a\u8a72\u65e5\u671f\u5728\u6708\u4efd\u4e2d\u7684\u5929\u6578\uff0c\u7bc4\u570d\u5f9e1\u523031\u3002<\/p>\n<h2 id=\"%e4%bd%bf%e7%94%a8%e7%af%84%e4%be%8b-QzpCNEliPL\">\u4f7f\u7528\u7bc4\u4f8b<\/h2>\n<p>\u4ee5\u4e0b\u662f\u4e00\u4e9b\u4f7f\u7528<code>DAYOFMONTH()<\/code>\u51fd\u6578\u7684\u7bc4\u4f8b\uff1a<\/p>\n<h3 id=\"%e7%af%84%e4%be%8b1-%e7%8d%b2%e5%8f%96%e7%95%b6%e5%89%8d%e6%97%a5%e6%9c%9f%e7%9a%84%e5%a4%a9%e6%95%b8-QzpCNEliPL\">\u7bc4\u4f8b1: \u7372\u53d6\u7576\u524d\u65e5\u671f\u7684\u5929\u6578<\/h3>\n<pre><code>SELECT DAYOFMONTH(CURDATE()) AS '\u4eca\u5929\u7684\u5929\u6578';<\/code><\/pre>\n<p>\u9019\u689d\u67e5\u8a62\u5c07\u8fd4\u56de\u7576\u524d\u65e5\u671f\u7684\u5929\u6578\u3002\u4f8b\u5982\uff0c\u5982\u679c\u4eca\u5929\u662f2023\u5e7410\u67085\u65e5\uff0c\u5247\u7d50\u679c\u5c07\u986f\u793a\u70ba5\u3002<\/p>\n<h3 id=\"%e7%af%84%e4%be%8b2-%e7%8d%b2%e5%8f%96%e7%89%b9%e5%ae%9a%e6%97%a5%e6%9c%9f%e7%9a%84%e5%a4%a9%e6%95%b8-QzpCNEliPL\">\u7bc4\u4f8b2: \u7372\u53d6\u7279\u5b9a\u65e5\u671f\u7684\u5929\u6578<\/h3>\n<pre><code>SELECT DAYOFMONTH('2023-10-15') AS '\u7279\u5b9a\u65e5\u671f\u7684\u5929\u6578';<\/code><\/pre>\n<p>\u9019\u689d\u67e5\u8a62\u5c07\u8fd4\u56de15\uff0c\u56e0\u70ba2023\u5e7410\u670815\u65e5\u662f\u8a72\u6708\u4efd\u7684\u7b2c15\u5929\u3002<\/p>\n<h3 id=\"%e7%af%84%e4%be%8b3-%e5%9c%a8%e8%b3%87%e6%96%99%e8%a1%a8%e4%b8%ad%e4%bd%bf%e7%94%a8dayofmonth-QzpCNEliPL\">\u7bc4\u4f8b3: \u5728\u8cc7\u6599\u8868\u4e2d\u4f7f\u7528DAYOFMONTH()<\/h3>\n<p>\u5047\u8a2d\u6709\u4e00\u500b\u540d\u70ba<code>orders<\/code>\u7684\u8cc7\u6599\u8868\uff0c\u5176\u4e2d\u6709\u4e00\u500b<code>order_date<\/code>\u6b04\u4f4d\uff0c\u8a18\u9304\u4e86\u6bcf\u500b\u8a02\u55ae\u7684\u65e5\u671f\u3002\u53ef\u4ee5\u4f7f\u7528<code>DAYOFMONTH()<\/code>\u4f86\u67e5\u8a62\u6bcf\u500b\u8a02\u55ae\u7684\u5929\u6578\uff1a<\/p>\n<pre><code>SELECT order_id, DAYOFMONTH(order_date) AS '\u8a02\u55ae\u5929\u6578' FROM orders;<\/code><\/pre>\n<p>\u9019\u689d\u67e5\u8a62\u5c07\u8fd4\u56de\u6bcf\u500b\u8a02\u55ae\u7684ID\u53ca\u5176\u5c0d\u61c9\u7684\u5929\u6578\u3002<\/p>\n<h2 id=\"%e6%87%89%e7%94%a8%e5%a0%b4%e6%99%af-QzpCNEliPL\">\u61c9\u7528\u5834\u666f<\/h2>\n<p><code>DAYOFMONTH()<\/code>\u51fd\u6578\u5728\u8a31\u591a\u5834\u666f\u4e2d\u90fd\u975e\u5e38\u6709\u7528\uff0c\u7279\u5225\u662f\u5728\u9700\u8981\u9032\u884c\u65e5\u671f\u8a08\u7b97\u6216\u5831\u544a\u6642\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u898b\u7684\u61c9\u7528\u5834\u666f\uff1a<\/p>\n<ul>\n<li><strong>\u5831\u544a\u751f\u6210\uff1a<\/strong>\u5728\u751f\u6210\u6bcf\u6708\u5831\u544a\u6642\uff0c\u53ef\u4ee5\u4f7f\u7528\u6b64\u51fd\u6578\u4f86\u7372\u53d6\u6bcf\u500b\u8a02\u55ae\u7684\u65e5\u671f\uff0c\u9032\u800c\u5206\u6790\u92b7\u552e\u8da8\u52e2\u3002<\/li>\n<li><strong>\u6578\u64da\u5206\u6790\uff1a<\/strong>\u5728\u9032\u884c\u6578\u64da\u5206\u6790\u6642\uff0c\u53ef\u4ee5\u6839\u64da\u5929\u6578\u4f86\u7be9\u9078\u8cc7\u6599\uff0c\u4e86\u89e3\u7279\u5b9a\u65e5\u671f\u7684\u696d\u52d9\u8868\u73fe\u3002<\/li>\n<li><strong>\u81ea\u52d5\u5316\u4efb\u52d9\uff1a<\/strong>\u5728\u81ea\u52d5\u5316\u4efb\u52d9\u4e2d\uff0c\u53ef\u4ee5\u6839\u64da\u7576\u524d\u65e5\u671f\u7684\u5929\u6578\u4f86\u89f8\u767c\u7279\u5b9a\u7684\u64cd\u4f5c\uff0c\u4f8b\u5982\u767c\u9001\u63d0\u9192\u6216\u751f\u6210\u5831\u544a\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-QzpCNEliPL\">\u7e3d\u7d50<\/h2>\n<p>MySQL\u7684<code>DAYOFMONTH()<\/code>\u51fd\u6578\u662f\u4e00\u500b\u7c21\u55ae\u800c\u5f37\u5927\u7684\u5de5\u5177\uff0c\u80fd\u5920\u5e6b\u52a9\u7528\u6236\u8f15\u9b06\u7372\u53d6\u7279\u5b9a\u65e5\u671f\u7684\u5929\u6578\u3002\u7121\u8ad6\u662f\u5728\u5831\u544a\u751f\u6210\u3001\u6578\u64da\u5206\u6790\u9084\u662f\u81ea\u52d5\u5316\u4efb\u52d9\u4e2d\uff0c\u9019\u500b\u51fd\u6578\u90fd\u80fd\u767c\u63ee\u91cd\u8981\u4f5c\u7528\u3002\u5c0d\u65bc\u9700\u8981\u8655\u7406\u65e5\u671f\u7684\u958b\u767c\u8005\u548c\u6578\u64da\u5206\u6790\u5e2b\u4f86\u8aaa\uff0c\u638c\u63e1\u9019\u500b\u51fd\u6578\u5c07\u5927\u5927\u63d0\u9ad8\u5de5\u4f5c\u6548\u7387\u3002<\/p>\n<p>\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u9ad8\u6548\u7684<code><a href=\"https:\/\/server.hk\">VPS<\/a><\/code>\u89e3\u6c7a\u65b9\u6848\uff0cServer.HK\u63d0\u4f9b\u591a\u7a2e\u9078\u64c7\uff0c\u6eff\u8db3\u60a8\u7684\u9700\u6c42\u3002\u7121\u8ad6\u662f<code><a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a><\/code>\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>\u4e86\u89e3MySQL\u6307\u4ee4DAYOFMONTH()\uff0c\u8f15\u9b06\u7372\u53d6\u65e5\u671f\u4e2d\u7684\u5929\u6578\uff0c\u63d0\u5347\u6578\u64da\u67e5\u8a62\u6548\u7387\uff0c\u7c21\u5316\u65e5\u671f\u8655\u7406\u904e\u7a0b\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-78264","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/78264","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=78264"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/78264\/revisions"}],"predecessor-version":[{"id":78265,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/78264\/revisions\/78265"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=78264"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=78264"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=78264"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}