{"id":5789,"date":"2024-11-14T10:05:08","date_gmt":"2024-11-14T02:05:08","guid":{"rendered":"https:\/\/fwq.ai\/blog\/5789\/"},"modified":"2024-11-14T10:05:08","modified_gmt":"2024-11-14T02:05:08","slug":"mysql%e6%97%b6%e9%97%b4%e7%b1%bb%e5%9e%8b%e6%80%8e%e4%b9%88%e7%94%a8","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/5789\/","title":{"rendered":"mysql\u65f6\u95f4\u7c7b\u578b\u600e\u4e48\u7528"},"content":{"rendered":"<blockquote><p>\n  mysql \u63d0\u4f9b\u4e86\u591a\u79cd\u65f6\u95f4\u7c7b\u578b\u4ee5\u5b58\u50a8\u65f6\u95f4\u76f8\u5173\u4fe1\u606f\uff0c\u5305\u62ec datetime\u3001timestamp\u3001time\u3001year \u548c date\u3002\u8fd9\u4e9b\u7c7b\u578b\u63d0\u4f9b\u4e86\u4ece\u5b58\u50a8\u65e5\u671f\u548c\u65f6\u95f4\u5230\u4ec5\u5b58\u50a8\u65f6\u95f4\u6216\u5e74\u4efd\u7684\u5404\u79cd\u9009\u9879\u3002\u6839\u636e\u5e94\u7528\u7a0b\u5e8f\u9700\u6c42\u548c\u6240\u9700\u7684\u7cbe\u5ea6\uff0c\u9009\u62e9\u9002\u5f53\u7684\u65f6\u95f4\u7c7b\u578b\u975e\u5e38\u91cd\u8981\u3002\n<\/p><\/blockquote>\n<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/202406\/02\/2024060201341221402.jpg\" class=\"aligncenter\" title=\"mysql\u65f6\u95f4\u7c7b\u578b\u600e\u4e48\u7528\u63d2\u56fe\" alt=\"mysql\u65f6\u95f4\u7c7b\u578b\u600e\u4e48\u7528\u63d2\u56fe\" \/><\/p>\n<p><strong>MySQL \u65f6\u95f4\u7c7b\u578b\u8be6\u89e3<\/strong><\/p>\n<p>MySQL \u63d0\u4f9b\u4e86\u51e0\u79cd\u65f6\u95f4\u7c7b\u578b\u6765\u5b58\u50a8\u4e0e\u65f6\u95f4\u76f8\u5173\u7684\u8be6\u7ec6\u4fe1\u606f\u3002<\/p>\n<p><strong>1. DATETIME<\/strong><\/p>\n<ul>\n<li>\u5b58\u50a8\u65e5\u671f\u548c\u65f6\u95f4\uff0c\u7cbe\u786e\u5230\u79d2\u3002<\/li>\n<li>\u683c\u5f0f\uff1aYYYY-MM-DD HH:MM:SS<\/li>\n<li>\u8303\u56f4\uff1a1000-01-01 00:00:00 \u5230 9999-12-31 23:59:59<\/li>\n<\/ul>\n<p><strong>2. TIMESTAMP<\/strong><\/p>\n<ul>\n<li>\u7c7b\u4f3c\u4e8e DATETIME\uff0c\u4f46\u4f1a\u81ea\u52a8\u66f4\u65b0\u4e3a\u5f53\u524d\u65f6\u95f4\u6233\u3002<\/li>\n<li>\u683c\u5f0f\uff1aYYYY-MM-DD HH:MM:SS[.fractional seconds]<\/li>\n<li>\u8303\u56f4\uff1a1970-01-01 00:00:01 \u5230 2038-01-19 03:14:07 UTC<\/li>\n<\/ul>\n<p><strong>3. TIME<\/strong><\/p>\n<ul>\n<li>\u4ec5\u5b58\u50a8\u65f6\u95f4\uff0c\u4e0d\u5b58\u50a8\u65e5\u671f\u3002<\/li>\n<li>\u683c\u5f0f\uff1aHH:MM:SS[.fractional seconds]<\/li>\n<li>\u8303\u56f4\uff1a-838:59:59 \u5230 838:59:59<\/li>\n<\/ul>\n<p><strong>4. YEAR<\/strong><\/p>\n<ul>\n<li>\u4ec5\u5b58\u50a8\u5e74\u4efd\u3002<\/li>\n<li>\u683c\u5f0f\uff1aYYYY<\/li>\n<li>\u8303\u56f4\uff1a1901 \u5230 2155<\/li>\n<\/ul>\n<p><strong>5. DATE<\/strong><\/p>\n<ul>\n<li>\u4ec5\u5b58\u50a8\u65e5\u671f\uff0c\u800c\u4e0d\u5b58\u50a8\u65f6\u95f4\u3002<\/li>\n<li>\u683c\u5f0f\uff1aYYYY-MM-DD<\/li>\n<li>\u8303\u56f4\uff1a1000-01-01 \u5230 9999-12-31<\/li>\n<\/ul>\n<p><strong>\u793a\u4f8b<\/strong><\/p>\n<pre>-- \u521b\u5efa\u65f6\u95f4\u6233\u5217\nCREATE TABLE my_table(\n    timestamp_column TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP\n);\n\n-- \u5728\u5217\u4e2d\u63d2\u5165\u65f6\u95f4\u6233\nINSERT INTO my_table(timestamp_column) VALUES (NOW());\n\n-- \u83b7\u53d6\u5f53\u524d\u65f6\u95f4\u6233\nSELECT NOW() AS current_timestamp;<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>\u6ce8\u610f\u4e8b\u9879<\/strong><\/p>\n<ul>\n<li>DATETIME \u548c TIMESTAMP \u53ef\u4ee5\u5b58\u50a8\u5c0f\u6570\u79d2\uff0c\u4ee5\u63d0\u9ad8\u7cbe\u5ea6\u3002<\/li>\n<li>TIMESTAMP \u7684\u81ea\u52a8\u66f4\u65b0\u529f\u80fd\u53ef\u4ee5\u7528\u4e8e\u8ddf\u8e2a\u8bb0\u5f55\u7684\u6700\u540e\u4fee\u6539\u65f6\u95f4\u3002<\/li>\n<li>TIME \u5bf9\u4e8e\u5b58\u50a8\u6301\u7eed\u65f6\u95f4\u5f88\u6709\u7528\uff0c\u4f8b\u5982\u4e8b\u4ef6\u6301\u7eed\u65f6\u95f4\u3002<\/li>\n<li>MySQL 5.6 \u53ca\u66f4\u9ad8\u7248\u672c\u652f\u6301\u5fae\u79d2\u7cbe\u5ea6\u7684\u65f6\u95f4\u6233\u3002<\/li>\n<li>\u9009\u62e9\u6b63\u786e\u7684\u7c7b\u578b\u53d6\u51b3\u4e8e\u5e94\u7528\u7a0b\u5e8f\u7684\u7279\u5b9a\u9700\u6c42\u548c\u6240\u9700\u7684\u7cbe\u5ea6\u6c34\u5e73\u3002<\/li>\n<\/ul>\n<p>\u4ee5\u4e0a\u5c31\u662f\u65f6\u95f4\u7c7b\u578b\u600e\u4e48\u7528\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8\u7c73\u4e91\u7f51\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>mysql \u63d0\u4f9b\u4e86\u591a\u79cd\u65f6\u95f4\u7c7b\u578b\u4ee5\u5b58\u50a8\u65f6\u95f4\u76f8\u5173\u4fe1\u606f\uff0c\u5305\u62ec datetime\u3001timestamp\u3001time\u3001year \u548c date\u3002\u8fd9\u4e9b\u7c7b\u578b\u63d0\u4f9b\u4e86\u4ece\u5b58\u50a8\u65e5\u671f\u548c\u65f6\u95f4\u5230\u4ec5\u5b58\u50a8\u65f6\u95f4\u6216\u5e74\u4efd\u7684\u5404\u79cd\u9009\u9879\u3002\u6839\u636e\u5e94\u7528\u7a0b\u5e8f\u9700\u6c42\u548c\u6240\u9700\u7684\u7cbe\u5ea6\uff0c\u9009\u62e9\u9002\u5f53\u7684\u65f6\u95f4\u7c7b\u578b\u975e\u5e38\u91cd\u8981\u3002 MySQL \u65f6\u95f4\u7c7b\u578b\u8be6\u89e3 MySQL \u63d0\u4f9b\u4e86\u51e0\u79cd\u65f6\u95f4\u7c7b\u578b\u6765\u5b58\u50a8\u4e0e\u65f6\u95f4\u76f8\u5173\u7684\u8be6\u7ec6\u4fe1\u606f\u3002 1. DATETIME \u5b58\u50a8\u65e5\u671f\u548c\u65f6\u95f4\uff0c\u7cbe\u786e\u5230\u79d2\u3002 \u683c\u5f0f\uff1aYYYY-MM-DD HH:MM:SS \u8303\u56f4\uff1a1000-01-01 00:00:00 \u5230 9999-12-31 23:59:59 2. TIMESTAMP \u7c7b\u4f3c\u4e8e DATETIME\uff0c\u4f46\u4f1a\u81ea\u52a8\u66f4\u65b0\u4e3a\u5f53\u524d\u65f6\u95f4\u6233\u3002 \u683c\u5f0f\uff1aYYYY-MM-DD HH:MM:SS[.fractional seconds] \u8303\u56f4\uff1a1970-01-01 00:00:01 \u5230 2038-01-19 03:14:07 UTC 3. TIME \u4ec5\u5b58\u50a8\u65f6\u95f4\uff0c\u4e0d\u5b58\u50a8\u65e5\u671f\u3002 \u683c\u5f0f\uff1aHH:MM:SS[.fractional seconds] \u8303\u56f4\uff1a-838:59:59 \u5230 838:59:59 4. YEAR \u4ec5\u5b58\u50a8\u5e74\u4efd\u3002 \u683c\u5f0f\uff1aYYYY \u8303\u56f4\uff1a1901 \u5230 2155 5. DATE \u4ec5\u5b58\u50a8\u65e5\u671f\uff0c\u800c\u4e0d\u5b58\u50a8\u65f6\u95f4\u3002 \u683c\u5f0f\uff1aYYYY-MM-DD \u8303\u56f4\uff1a1000-01-01 \u5230 9999-12-31 \u793a\u4f8b [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[16],"tags":[],"class_list":["post-5789","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/5789","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/comments?post=5789"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/5789\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=5789"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=5789"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=5789"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}