{"id":78202,"date":"2024-10-16T11:38:24","date_gmt":"2024-10-16T03:38:24","guid":{"rendered":"https:\/\/server.hk\/cnblog\/78202\/"},"modified":"2024-10-16T11:38:24","modified_gmt":"2024-10-16T03:38:24","slug":"mysql%e6%8c%87%e4%bb%a4-datetime%ef%bc%88%e6%97%a5%e6%9c%9f%e6%99%82%e9%96%93%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/78202\/","title":{"rendered":"MySQL\u6307\u4ee4: DATETIME\uff08\u65e5\u671f\u6642\u9593\uff09"},"content":{"rendered":"<h1 id=\"mysql%e6%8c%87%e4%bb%a4-datetime%ef%bc%88%e6%97%a5%e6%9c%9f%e6%99%82%e9%96%93%ef%bc%89-UzfagxqzQI\">MySQL\u6307\u4ee4: DATETIME\uff08\u65e5\u671f\u6642\u9593\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\uff0c\u5c24\u5176\u662f\u5728\u9700\u8981\u8a18\u9304\u4e8b\u4ef6\u3001\u4ea4\u6613\u6216\u4efb\u4f55\u6642\u9593\u76f8\u95dc\u7684\u6578\u64da\u6642\u3002MySQL\u4f5c\u70ba\u4e00\u500b\u6d41\u884c\u7684\u958b\u6e90\u8cc7\u6599\u5eab\u7ba1\u7406\u7cfb\u7d71\uff0c\u63d0\u4f9b\u4e86\u591a\u7a2e\u6578\u64da\u985e\u578b\u4f86\u8655\u7406\u65e5\u671f\u548c\u6642\u9593\uff0c\u5176\u4e2d\u4e4b\u4e00\u5c31\u662fDATETIME\u985e\u578b\u3002<\/p>\n<h2 id=\"datetime%e7%9a%84%e5%ae%9a%e7%be%a9-UzfagxqzQI\">DATETIME\u7684\u5b9a\u7fa9<\/h2>\n<p>DATETIME\u662f\u4e00\u7a2e\u7528\u65bc\u5b58\u5132\u65e5\u671f\u548c\u6642\u9593\u7684\u6578\u64da\u985e\u578b\u3002\u5b83\u7684\u683c\u5f0f\u70ba &#8216;YYYY-MM-DD HH:MM:SS&#8217;\uff0c\u5176\u4e2d\uff1a<\/p>\n<ul>\n<li><strong>YYYY<\/strong>\uff1a\u56db\u4f4d\u6578\u7684\u5e74\u4efd<\/li>\n<li><strong>MM<\/strong>\uff1a\u5169\u4f4d\u6578\u7684\u6708\u4efd\uff0801\u523012\uff09<\/li>\n<li><strong>DD<\/strong>\uff1a\u5169\u4f4d\u6578\u7684\u65e5\u671f\uff0801\u523031\uff09<\/li>\n<li><strong>HH<\/strong>\uff1a\u5169\u4f4d\u6578\u7684\u6642\uff0800\u523023\uff09<\/li>\n<li><strong>MM<\/strong>\uff1a\u5169\u4f4d\u6578\u7684\u5206\uff0800\u523059\uff09<\/li>\n<li><strong>SS<\/strong>\uff1a\u5169\u4f4d\u6578\u7684\u79d2\uff0800\u523059\uff09<\/li>\n<\/ul>\n<p>DATETIME\u985e\u578b\u7684\u7bc4\u570d\u662f\u5f9e &#8216;1000-01-01 00:00:00&#8217; \u5230 &#8216;9999-12-31 23:59:59&#8217;\uff0c\u9019\u4f7f\u5f97\u5b83\u80fd\u5920\u8655\u7406\u975e\u5e38\u5ee3\u6cdb\u7684\u65e5\u671f\u548c\u6642\u9593\u7bc4\u570d\u3002<\/p>\n<h2 id=\"%e4%bd%bf%e7%94%a8datetime%e7%9a%84%e5%84%aa%e5%8b%a2-UzfagxqzQI\">\u4f7f\u7528DATETIME\u7684\u512a\u52e2<\/h2>\n<p>\u4f7f\u7528DATETIME\u985e\u578b\u7684\u4e3b\u8981\u512a\u52e2\u5305\u62ec\uff1a<\/p>\n<ul>\n<li><strong>\u7cbe\u78ba\u6027<\/strong>\uff1aDATETIME\u80fd\u5920\u7cbe\u78ba\u5230\u79d2\uff0c\u9069\u5408\u9700\u8981\u9ad8\u7cbe\u5ea6\u6642\u9593\u8a18\u9304\u7684\u61c9\u7528\u3002<\/li>\n<li><strong>\u7bc4\u570d\u5ee3\u6cdb<\/strong>\uff1a\u5982\u524d\u6240\u8ff0\uff0cDATETIME\u7684\u7bc4\u570d\u975e\u5e38\u5ee3\u6cdb\uff0c\u80fd\u5920\u6eff\u8db3\u5927\u591a\u6578\u61c9\u7528\u7684\u9700\u6c42\u3002<\/li>\n<li><strong>\u65b9\u4fbf\u7684\u67e5\u8a62<\/strong>\uff1a\u4f7f\u7528DATETIME\u53ef\u4ee5\u65b9\u4fbf\u5730\u9032\u884c\u6642\u9593\u7bc4\u570d\u67e5\u8a62\uff0c\u4f8b\u5982\u67e5\u8a62\u67d0\u500b\u6642\u9593\u6bb5\u5167\u7684\u6578\u64da\u3002<\/li>\n<\/ul>\n<h2 id=\"%e5%a6%82%e4%bd%95%e4%bd%bf%e7%94%a8datetime-UzfagxqzQI\">\u5982\u4f55\u4f7f\u7528DATETIME<\/h2>\n<p>\u5728MySQL\u4e2d\uff0c\u4f7f\u7528DATETIME\u985e\u578b\u975e\u5e38\u7c21\u55ae\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u57fa\u672c\u7684\u64cd\u4f5c\u793a\u4f8b\uff1a<\/p>\n<h3 id=\"1-%e5%89%b5%e5%bb%ba%e8%a1%a8%e6%a0%bc-UzfagxqzQI\">1. \u5275\u5efa\u8868\u683c<\/h3>\n<pre><code>CREATE TABLE events (\n    id INT AUTO_INCREMENT PRIMARY KEY,\n    event_name VARCHAR(255) NOT NULL,\n    event_time DATETIME NOT NULL\n);<\/code><\/pre>\n<p>\u5728\u9019\u500b\u793a\u4f8b\u4e2d\uff0c\u6211\u5011\u5275\u5efa\u4e86\u4e00\u500b\u540d\u70baevents\u7684\u8868\u683c\uff0c\u5176\u4e2d\u5305\u542b\u4e00\u500bDATETIME\u985e\u578b\u7684event_time\u6b04\u4f4d\u3002<\/p>\n<h3 id=\"2-%e6%8f%92%e5%85%a5%e6%95%b8%e6%93%9a-UzfagxqzQI\">2. \u63d2\u5165\u6578\u64da<\/h3>\n<pre><code>INSERT INTO events (event_name, event_time) VALUES\n('New Year Celebration', '2023-01-01 00:00:00'),\n('Project Deadline', '2023-12-31 17:00:00');<\/code><\/pre>\n<p>\u9019\u6bb5\u4ee3\u78bc\u63d2\u5165\u4e86\u5169\u500b\u4e8b\u4ef6\uff0c\u5206\u5225\u8a18\u9304\u4e86\u65b0\u5e74\u6176\u795d\u6d3b\u52d5\u548c\u9805\u76ee\u622a\u6b62\u65e5\u671f\u7684\u6642\u9593\u3002<\/p>\n<h3 id=\"3-%e6%9f%a5%e8%a9%a2%e6%95%b8%e6%93%9a-UzfagxqzQI\">3. \u67e5\u8a62\u6578\u64da<\/h3>\n<pre><code>SELECT * FROM events WHERE event_time &gt; '2023-01-01 00:00:00';<\/code><\/pre>\n<p>\u9019\u689d\u67e5\u8a62\u5c07\u8fd4\u56de\u6240\u6709\u57282023\u5e741\u67081\u65e5\u4e4b\u5f8c\u7684\u4e8b\u4ef6\u3002<\/p>\n<h2 id=\"%e6%b3%a8%e6%84%8f%e4%ba%8b%e9%a0%85-UzfagxqzQI\">\u6ce8\u610f\u4e8b\u9805<\/h2>\n<p>\u5728\u4f7f\u7528DATETIME\u6642\uff0c\u6709\u5e7e\u9ede\u9700\u8981\u6ce8\u610f\uff1a<\/p>\n<ul>\n<li>DATETIME\u4e0d\u6703\u81ea\u52d5\u8003\u616e\u6642\u5340\uff0c\u56e0\u6b64\u5728\u8655\u7406\u8de8\u6642\u5340\u7684\u61c9\u7528\u6642\uff0c\u9700\u8981\u7279\u5225\u6ce8\u610f\u3002<\/li>\n<li>\u5982\u679c\u9700\u8981\u66f4\u9ad8\u7684\u7cbe\u5ea6\uff0c\u53ef\u4ee5\u8003\u616e\u4f7f\u7528TIMESTAMP\u985e\u578b\uff0c\u8a72\u985e\u578b\u4e5f\u80fd\u5920\u81ea\u52d5\u8655\u7406\u6642\u5340\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-UzfagxqzQI\">\u7e3d\u7d50<\/h2>\n<p>DATETIME\u662fMySQL\u4e2d\u4e00\u500b\u975e\u5e38\u6709\u7528\u7684\u6578\u64da\u985e\u578b\uff0c\u9069\u5408\u7528\u65bc\u9700\u8981\u7cbe\u78ba\u8a18\u9304\u65e5\u671f\u548c\u6642\u9593\u7684\u61c9\u7528\u3002\u901a\u904e\u6b63\u78ba\u4f7f\u7528DATETIME\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u66f4\u6709\u6548\u5730\u7ba1\u7406\u548c\u67e5\u8a62\u6642\u9593\u76f8\u95dc\u7684\u6578\u64da\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u6548\u80fd\u548c\u7a69\u5b9a\u6027\u7684\u61c9\u7528\uff0c\u9078\u64c7\u5408\u9069\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u89e3\u6c7a\u65b9\u6848\u4e5f\u662f\u81f3\u95dc\u91cd\u8981\u7684\u3002\u7121\u8ad6\u662f\u9078\u64c7 <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u9084\u662f\u5176\u4ed6\u985e\u578b\u7684 <a href=\"https:\/\/server.hk\">\u4f3a\u670d\u5668<\/a>\uff0c\u90fd\u80fd\u70ba\u60a8\u7684\u61c9\u7528\u63d0\u4f9b\u5f37\u5927\u7684\u652f\u6301\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e86\u89e3MySQL\u4e2d\u7684DATETIME\u6307\u4ee4\uff0c\u638c\u63e1\u65e5\u671f\u548c\u65f6\u95f4\u7684\u5b58\u50a8\u4e0e\u64cd\u4f5c\uff0c\u63d0\u5347\u6570\u636e\u5e93\u7ba1\u7406\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-78202","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/78202","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=78202"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/78202\/revisions"}],"predecessor-version":[{"id":78203,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/78202\/revisions\/78203"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=78202"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=78202"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=78202"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}