{"id":79984,"date":"2024-10-16T13:45:15","date_gmt":"2024-10-16T05:45:15","guid":{"rendered":"https:\/\/server.hk\/cnblog\/79984\/"},"modified":"2024-10-16T13:45:15","modified_gmt":"2024-10-16T05:45:15","slug":"mysql%e6%8c%87%e4%bb%a4-time%ef%bc%88%e6%99%82%e9%96%93%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/79984\/","title":{"rendered":"MySQL\u6307\u4ee4: TIME\uff08\u6642\u9593\uff09"},"content":{"rendered":"

MySQL\u6307\u4ee4: TIME\uff08\u6642\u9593\uff09<\/h1>\n

\u5728\u6578\u64da\u5eab\u7ba1\u7406\u7cfb\u7d71\u4e2d\uff0cMySQL\u662f\u4e00\u500b\u5ee3\u6cdb\u4f7f\u7528\u7684\u958b\u6e90\u95dc\u806f\u6578\u64da\u5eab\u7ba1\u7406\u7cfb\u7d71\u3002\u5b83\u63d0\u4f9b\u4e86\u591a\u7a2e\u6578\u64da\u985e\u578b\u548c\u51fd\u6578\u4f86\u8655\u7406\u6642\u9593\u548c\u65e5\u671f\u3002\u672c\u6587\u5c07\u91cd\u9ede\u4ecb\u7d39MySQL\u4e2d\u7684TIME\u6307\u4ee4\uff0c\u5e6b\u52a9\u8b80\u8005\u66f4\u597d\u5730\u7406\u89e3\u5982\u4f55\u5728\u6578\u64da\u5eab\u4e2d\u8655\u7406\u6642\u9593\u6578\u64da\u3002<\/p>\n

TIME\u6578\u64da\u985e\u578b<\/h2>\n

\u5728MySQL\u4e2d\uff0cTIME\u6578\u64da\u985e\u578b\u7528\u65bc\u5b58\u5132\u6642\u9593\u503c\uff0c\u683c\u5f0f\u70ba\u300cHH:MM:SS\u300d\u3002\u9019\u610f\u5473\u8457\u5b83\u53ef\u4ee5\u8868\u793a\u5f9e00:00:00\u523023:59:59\u7684\u6642\u9593\u3002TIME\u985e\u578b\u7684\u4e3b\u8981\u7528\u9014\u5305\u62ec\u8a18\u9304\u4e8b\u4ef6\u7684\u767c\u751f\u6642\u9593\u3001\u8a08\u7b97\u6301\u7e8c\u6642\u9593\u7b49\u3002<\/p>\n

TIME\u7684\u7bc4\u4f8b<\/h3>\n

\u4ee5\u4e0b\u662f\u5275\u5efa\u4e00\u500b\u5305\u542bTIME\u985e\u578b\u7684\u8868\u7684\u7bc4\u4f8b\uff1a<\/p>\n

CREATE TABLE events (\n    id INT AUTO_INCREMENT PRIMARY KEY,\n    event_name VARCHAR(100),\n    event_time TIME\n);<\/code><\/pre>\n
\u5728\u9019\u500b\u7bc4\u4f8b\u4e2d\uff0c\u6211\u5011\u5275\u5efa\u4e86\u4e00\u500b\u540d\u70baevents\u7684\u8868\uff0c\u5305\u542b\u4e09\u500b\u6b04\u4f4d\uff1aid\u3001event_name\u548cevent_time\u3002event_time\u6b04\u4f4d\u7684\u6578\u64da\u985e\u578b\u70baTIME\u3002<\/p>\n
\u63d2\u5165TIME\u6578\u64da<\/h2>\n
\u63d2\u5165TIME\u6578\u64da\u975e\u5e38\u7c21\u55ae\u3002\u4ee5\u4e0b\u662f\u63d2\u5165\u6578\u64da\u7684\u7bc4\u4f8b\uff1a<\/p>\n
INSERT INTO events (event_name, event_time) VALUES ('\u958b\u6703', '14:30:00');<\/code><\/pre>\n
\u5728\u9019\u500b\u7bc4\u4f8b\u4e2d\uff0c\u6211\u5011\u63d2\u5165\u4e86\u4e00\u500b\u540d\u70ba\u300c\u958b\u6703\u300d\u7684\u4e8b\u4ef6\uff0c\u4e26\u5c07\u5176\u6642\u9593\u8a2d\u7f6e\u70ba14:30:00\u3002<\/p>\n
\u67e5\u8a62TIME\u6578\u64da<\/h2>\n
\u67e5\u8a62TIME\u6578\u64da\u6642\uff0c\u53ef\u4ee5\u4f7f\u7528SELECT\u8a9e\u53e5\u3002\u4ee5\u4e0b\u662f\u67e5\u8a62\u6240\u6709\u4e8b\u4ef6\u7684\u7bc4\u4f8b\uff1a<\/p>\n
SELECT * FROM events;<\/code><\/pre>\n
\u9019\u5c07\u8fd4\u56deevents\u8868\u4e2d\u7684\u6240\u6709\u8a18\u9304\uff0c\u5305\u62ec\u4e8b\u4ef6\u540d\u7a31\u548c\u4e8b\u4ef6\u6642\u9593\u3002<\/p>\n
\u6642\u9593\u6bd4\u8f03<\/h3>\n
\u5728\u67e5\u8a62\u4e2d\uff0c\u6211\u5011\u4e5f\u53ef\u4ee5\u9032\u884c\u6642\u9593\u6bd4\u8f03\u3002\u4f8b\u5982\uff0c\u67e5\u8a62\u6240\u6709\u5728\u4e0b\u53482\u9ede\u4e4b\u5f8c\u7684\u4e8b\u4ef6\uff1a<\/p>\n
SELECT * FROM events WHERE event_time > '14:00:00';<\/code><\/pre>\n
\u9019\u5c07\u8fd4\u56de\u6240\u6709\u4e8b\u4ef6\u6642\u9593\u572814:00:00\u4e4b\u5f8c\u7684\u8a18\u9304\u3002<\/p>\n
\u6642\u9593\u8a08\u7b97<\/h2>\n
MySQL\u9084\u63d0\u4f9b\u4e86\u591a\u7a2e\u51fd\u6578\u4f86\u9032\u884c\u6642\u9593\u8a08\u7b97\u3002\u4f8b\u5982\uff0c\u4f7f\u7528TIMEDIFF\u51fd\u6578\u53ef\u4ee5\u8a08\u7b97\u5169\u500b\u6642\u9593\u4e4b\u9593\u7684\u5dee\u7570\uff1a<\/p>\n
SELECT TIMEDIFF('15:00:00', '14:30:00') AS duration;<\/code><\/pre>\n
\u9019\u5c07\u8fd4\u56de\u300c00:30:00\u300d\uff0c\u8868\u793a\u5169\u500b\u6642\u9593\u4e4b\u9593\u7684\u5dee\u7570\u70ba30\u5206\u9418\u3002<\/p>\n
\u7d50\u8ad6<\/h2>\n
MySQL\u4e2d\u7684TIME\u6307\u4ee4\u63d0\u4f9b\u4e86\u4e00\u7a2e\u65b9\u4fbf\u7684\u65b9\u5f0f\u4f86\u8655\u7406\u6642\u9593\u6578\u64da\u3002\u7121\u8ad6\u662f\u63d2\u5165\u3001\u67e5\u8a62\u9084\u662f\u8a08\u7b97\u6642\u9593\uff0cTIME\u6578\u64da\u985e\u578b\u90fd\u80fd\u5920\u6eff\u8db3\u5927\u591a\u6578\u9700\u6c42\u3002\u901a\u904e\u672c\u6587\u7684\u4ecb\u7d39\uff0c\u8b80\u8005\u61c9\u8a72\u80fd\u5920\u66f4\u597d\u5730\u7406\u89e3\u5982\u4f55\u5728MySQL\u4e2d\u4f7f\u7528TIME\u6307\u4ee4\u4f86\u7ba1\u7406\u6642\u9593\u6578\u64da\u3002<\/p>\n
\u5982\u679c\u60a8\u5c0d\u65bc\u5982\u4f55\u5728\u60a8\u7684\u9805\u76ee\u4e2d\u4f7f\u7528MySQL\u6216\u5176\u4ed6\u6578\u64da\u5eab\u6280\u8853\u6709\u9032\u4e00\u6b65\u7684\u8208\u8da3\uff0c\u60a8\u53ef\u4ee5\u8003\u616e\u4f7f\u7528\u9999\u6e2fVPS<\/a>\u4f86\u642d\u5efa\u60a8\u7684\u6578\u64da\u5eab\u74b0\u5883\uff0c\u4eab\u53d7\u9ad8\u6548\u7a69\u5b9a\u7684\u670d\u52d9\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
\u4e86\u89e3MySQL\u6307\u4ee4TIME\uff0c\u638c\u63e1\u5982\u4f55\u5728\u6570\u636e\u5e93\u4e2d\u5904\u7406\u548c\u683c\u5f0f\u5316\u6642\u9593\u6578\u64da\uff0c\u63d0\u5347\u6578\u64da\u67e5\u8a62\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-79984","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/79984","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=79984"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/79984\/revisions"}],"predecessor-version":[{"id":79985,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/79984\/revisions\/79985"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=79984"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=79984"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=79984"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}