{"id":78134,"date":"2024-10-16T11:34:46","date_gmt":"2024-10-16T03:34:46","guid":{"rendered":"https:\/\/server.hk\/cnblog\/78134\/"},"modified":"2024-10-16T11:34:46","modified_gmt":"2024-10-16T03:34:46","slug":"mysql%e6%8c%87%e4%bb%a4-date%ef%bc%88%e6%97%a5%e6%9c%9f%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/78134\/","title":{"rendered":"MySQL\u6307\u4ee4: DATE()\uff08\u65e5\u671f\uff09"},"content":{"rendered":"<h1 id=\"mysql%e6%8c%87%e4%bb%a4-date%ef%bc%88%e6%97%a5%e6%9c%9f%ef%bc%89-LaFIjFEVYl\">MySQL\u6307\u4ee4: DATE()\uff08\u65e5\u671f\uff09<\/h1>\n<p>\u5728\u8cc7\u6599\u5eab\u7ba1\u7406\u7cfb\u7d71\u4e2d\uff0c\u65e5\u671f\u548c\u6642\u9593\u7684\u8655\u7406\u662f\u975e\u5e38\u91cd\u8981\u7684\u3002MySQL\u4f5c\u70ba\u4e00\u500b\u6d41\u884c\u7684\u958b\u6e90\u8cc7\u6599\u5eab\uff0c\u63d0\u4f9b\u4e86\u591a\u7a2e\u51fd\u6578\u4f86\u8655\u7406\u65e5\u671f\u548c\u6642\u9593\uff0c\u5176\u4e2d\u4e4b\u4e00\u5c31\u662fDATE()\u51fd\u6578\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0eDATE()\u51fd\u6578\u7684\u7528\u6cd5\u53ca\u5176\u5728\u5be6\u969b\u61c9\u7528\u4e2d\u7684\u91cd\u8981\u6027\u3002<\/p>\n<h2 id=\"date%e5%87%bd%e6%95%b8%e6%a6%82%e8%bf%b0-LaFIjFEVYl\">DATE()\u51fd\u6578\u6982\u8ff0<\/h2>\n<p>DATE()\u51fd\u6578\u7684\u4e3b\u8981\u529f\u80fd\u662f\u5f9e\u4e00\u500b\u65e5\u671f\u6216\u65e5\u671f\u6642\u9593\u503c\u4e2d\u63d0\u53d6\u51fa\u65e5\u671f\u90e8\u5206\u3002\u9019\u610f\u5473\u8457\u5b83\u6703\u8fd4\u56de\u4e00\u500b\u4e0d\u5305\u542b\u6642\u9593\u7684\u65e5\u671f\u503c\u3002\u9019\u5728\u9700\u8981\u9032\u884c\u65e5\u671f\u6bd4\u8f03\u6216\u7be9\u9078\u6642\u975e\u5e38\u6709\u7528\u3002<\/p>\n<h3 id=\"%e8%aa%9e%e6%b3%95-LaFIjFEVYl\">\u8a9e\u6cd5<\/h3>\n<pre><code>DATE(date)<\/code><\/pre>\n<p>\u5728\u9019\u88e1\uff0c<code>date<\/code>\u53ef\u4ee5\u662f\u4efb\u4f55\u6709\u6548\u7684\u65e5\u671f\u6216\u65e5\u671f\u6642\u9593\u8868\u9054\u5f0f\u3002\u82e5\u8a72\u8868\u9054\u5f0f\u7121\u6cd5\u88ab\u89e3\u6790\u70ba\u65e5\u671f\uff0c\u5247\u51fd\u6578\u5c07\u8fd4\u56deNULL\u3002<\/p>\n<h2 id=\"%e4%bd%bf%e7%94%a8%e7%af%84%e4%be%8b-LaFIjFEVYl\">\u4f7f\u7528\u7bc4\u4f8b<\/h2>\n<p>\u4ee5\u4e0b\u662f\u4e00\u4e9b\u4f7f\u7528DATE()\u51fd\u6578\u7684\u7bc4\u4f8b\uff0c\u5e6b\u52a9\u60a8\u66f4\u597d\u5730\u7406\u89e3\u5176\u7528\u6cd5\u3002<\/p>\n<h3 id=\"%e7%af%84%e4%be%8b1-%e6%8f%90%e5%8f%96%e6%97%a5%e6%9c%9f-LaFIjFEVYl\">\u7bc4\u4f8b1: \u63d0\u53d6\u65e5\u671f<\/h3>\n<pre><code>SELECT DATE('2023-10-01 15:30:00');<\/code><\/pre>\n<p>\u9019\u689d\u67e5\u8a62\u5c07\u8fd4\u56de<code>2023-10-01<\/code>\uff0c\u56e0\u70ba\u5b83\u5f9e\u5b8c\u6574\u7684\u65e5\u671f\u6642\u9593\u4e2d\u63d0\u53d6\u4e86\u65e5\u671f\u90e8\u5206\u3002<\/p>\n<h3 id=\"%e7%af%84%e4%be%8b2-%e5%9c%a8%e6%9f%a5%e8%a9%a2%e4%b8%ad%e4%bd%bf%e7%94%a8date%e5%87%bd%e6%95%b8-LaFIjFEVYl\">\u7bc4\u4f8b2: \u5728\u67e5\u8a62\u4e2d\u4f7f\u7528DATE()\u51fd\u6578<\/h3>\n<p>\u5047\u8a2d\u60a8\u6709\u4e00\u500b\u540d\u70ba<code>orders<\/code>\u7684\u8868\u683c\uff0c\u4e26\u4e14\u60f3\u8981\u67e5\u8a62\u6240\u6709\u5728\u7279\u5b9a\u65e5\u671f\u4e0b\u7684\u8a02\u55ae\u3002\u60a8\u53ef\u4ee5\u9019\u6a23\u5beb\uff1a<\/p>\n<pre><code>SELECT * FROM orders WHERE DATE(order_date) = '2023-10-01';<\/code><\/pre>\n<p>\u9019\u689d\u67e5\u8a62\u5c07\u8fd4\u56de\u6240\u6709\u57282023\u5e7410\u67081\u65e5\u4e0b\u7684\u8a02\u55ae\u3002<\/p>\n<h3 id=\"%e7%af%84%e4%be%8b3-%e7%b5%90%e5%90%88%e5%85%b6%e4%bb%96%e5%87%bd%e6%95%b8%e4%bd%bf%e7%94%a8-LaFIjFEVYl\">\u7bc4\u4f8b3: \u7d50\u5408\u5176\u4ed6\u51fd\u6578\u4f7f\u7528<\/h3>\n<p>DATE()\u51fd\u6578\u4e5f\u53ef\u4ee5\u8207\u5176\u4ed6\u65e5\u671f\u51fd\u6578\u7d50\u5408\u4f7f\u7528\u3002\u4f8b\u5982\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528<code>NOW()<\/code>\u51fd\u6578\u4f86\u7372\u53d6\u7576\u524d\u65e5\u671f\u548c\u6642\u9593\uff0c\u7136\u5f8c\u63d0\u53d6\u65e5\u671f\u90e8\u5206\uff1a<\/p>\n<pre><code>SELECT DATE(NOW());<\/code><\/pre>\n<p>\u9019\u5c07\u8fd4\u56de\u7576\u524d\u7684\u65e5\u671f\uff0c\u6642\u9593\u90e8\u5206\u5c07\u88ab\u5ffd\u7565\u3002<\/p>\n<h2 id=\"%e6%b3%a8%e6%84%8f%e4%ba%8b%e9%a0%85-LaFIjFEVYl\">\u6ce8\u610f\u4e8b\u9805<\/h2>\n<p>\u5728\u4f7f\u7528DATE()\u51fd\u6578\u6642\uff0c\u6709\u5e7e\u9ede\u9700\u8981\u6ce8\u610f\uff1a<\/p>\n<ul>\n<li>\u78ba\u4fdd\u8f38\u5165\u7684\u65e5\u671f\u683c\u5f0f\u6b63\u78ba\uff0c\u5426\u5247\u51fd\u6578\u5c07\u8fd4\u56deNULL\u3002<\/li>\n<li>DATE()\u51fd\u6578\u7684\u8fd4\u56de\u503c\u662f\u4ee5<code>YYYY-MM-DD<\/code>\u683c\u5f0f\u986f\u793a\u7684\u3002<\/li>\n<li>\u5728\u9032\u884c\u65e5\u671f\u6bd4\u8f03\u6642\uff0c\u5efa\u8b70\u4f7f\u7528DATE()\u51fd\u6578\u4f86\u907f\u514d\u6642\u9593\u90e8\u5206\u7684\u5f71\u97ff\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b5%90%e8%ab%96-LaFIjFEVYl\">\u7d50\u8ad6<\/h2>\n<p>DATE()\u51fd\u6578\u5728MySQL\u4e2d\u662f\u4e00\u500b\u975e\u5e38\u5be6\u7528\u7684\u5de5\u5177\uff0c\u80fd\u5920\u5e6b\u52a9\u958b\u767c\u8005\u548c\u6578\u64da\u5206\u6790\u5e2b\u6709\u6548\u5730\u8655\u7406\u548c\u7be9\u9078\u65e5\u671f\u6578\u64da\u3002\u7121\u8ad6\u662f\u5728\u67e5\u8a62\u4e2d\u63d0\u53d6\u65e5\u671f\uff0c\u9084\u662f\u8207\u5176\u4ed6\u51fd\u6578\u7d50\u5408\u4f7f\u7528\uff0cDATE()\u51fd\u6578\u90fd\u80fd\u63d0\u4f9b\u9748\u6d3b\u6027\u548c\u4fbf\u5229\u6027\u3002<\/p>\n<p>\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u9ad8\u6548\u7684\u8cc7\u6599\u5eab\u89e3\u6c7a\u65b9\u6848\uff0c\u8003\u616e\u4f7f\u7528<a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a>\u4f86\u642d\u5efa\u60a8\u7684MySQL\u74b0\u5883\uff0c\u4eab\u53d7\u7a69\u5b9a\u548c\u5feb\u901f\u7684\u670d\u52d9\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e86\u89e3MySQL\u4e2d\u7684DATE()\u51fd\u6570\uff0c\u63d0\u53d6\u65e5\u671f\u90e8\u5206\uff0c\u7b80\u5316\u65e5\u671f\u5904\u7406\uff0c\u63d0\u5347\u6570\u636e\u5e93\u67e5\u8be2\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-78134","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/78134","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=78134"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/78134\/revisions"}],"predecessor-version":[{"id":78135,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/78134\/revisions\/78135"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=78134"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=78134"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=78134"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}