{"id":200025,"date":"2025-05-06T10:39:16","date_gmt":"2025-05-06T02:39:16","guid":{"rendered":"https:\/\/server.hk\/cnblog\/200025\/"},"modified":"2025-05-06T10:39:16","modified_gmt":"2025-05-06T02:39:16","slug":"%e8%a7%a3%e6%9e%90mysql%e4%b8%ad%e6%97%b6%e9%97%b4%e6%88%b3%e7%9a%84%e5%b7%a5%e4%bd%9c%e5%8e%9f%e7%90%86%e5%92%8c%e5%ae%9e%e7%8e%b0%e6%9c%ba%e5%88%b6","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/200025\/","title":{"rendered":"\u89e3\u6790MySQL\u4e2d\u65f6\u95f4\u6233\u7684\u5de5\u4f5c\u539f\u7406\u548c\u5b9e\u73b0\u673a\u5236"},"content":{"rendered":"

<\/b> <\/p>\n

\u89e3\u6790MySQL\u4e2d\u65f6\u95f4\u6233\u7684\u5de5\u4f5c\u539f\u7406\u548c\u5b9e\u73b0\u673a\u5236<\/h1>\n

\u4e3b\u673a\u5b9d\u8d1d\u4eca\u5929\u5c06\u7ed9\u5927\u5bb6\u5e26\u6765\uff0c\u611f\u5174\u8da3\u7684\u670b\u53cb\u8bf7\u7ee7\u7eed\u770b\u4e0b\u53bb\u5427\uff01\u4ee5\u4e0b\u5185\u5bb9\u5c06\u4f1a\u6d89\u53ca\u5230\u7b49\u7b49\u77e5\u8bc6\u70b9\uff0c\u5982\u679c\u4f60\u662f\u6b63\u5728\u5b66\u4e60\u6216\u8005\u5df2\u7ecf\u662f\u5927\u4f6c\u7ea7\u522b\u4e86\uff0c\u90fd\u975e\u5e38\u6b22\u8fce\u4e5f\u5e0c\u671b\u5927\u5bb6\u90fd\u80fd\u7ed9\u6211\u5efa\u8bae\u8bc4\u8bba\u54c8~\u5e0c\u671b\u80fd\u5e2e\u52a9\u5230\u5927\u5bb6\uff01<\/p>\n

MySQL\u65f6\u95f4\u6233\u7684\u539f\u7406\u4e0e\u5b9e\u73b0\u673a\u5236\u89e3\u6790<\/p>\n

\u5728MySQL\u6570\u636e\u5e93\u4e2d\uff0c\u65f6\u95f4\u6233\uff08Timestamp\uff09\u662f\u4e00\u79cd\u7528\u4e8e\u5b58\u50a8\u65e5\u671f\u548c\u65f6\u95f4\u4fe1\u606f\u7684\u6570\u636e\u7c7b\u578b\u3002\u5b83\u53ef\u4ee5\u8bb0\u5f55\u65f6\u95f4\u6233\u7684\u79d2\u6570\uff0c\u7cbe\u786e\u5230\u5fae\u79d2\u7ea7\u522b\uff0c\u7528\u4e8e\u5728\u6570\u636e\u5e93\u4e2d\u8bb0\u5f55\u6570\u636e\u7684\u521b\u5efa\u65f6\u95f4\u6216\u8005\u6700\u540e\u66f4\u65b0\u65f6\u95f4\u7b49\u4fe1\u606f\u3002\u672c\u6587\u5c06\u5bf9MySQL\u65f6\u95f4\u6233\u7684\u539f\u7406\u4e0e\u5b9e\u73b0\u673a\u5236\u8fdb\u884c\u89e3\u6790\uff0c\u5e76\u63d0\u4f9b\u5177\u4f53\u4ee3\u7801\u793a\u4f8b\u3002<\/p>\n

1. MySQL\u65f6\u95f4\u6233\u7684\u539f\u7406<\/strong><\/p>\n

\u5728MySQL\u4e2d\uff0c\u65f6\u95f4\u6233\u5b58\u50a8\u7684\u662f\u4ece\u201c1970-01-01 00:00:00\u201d\u8fd9\u4e00\u523b\u5f00\u59cb\u5230\u8bb0\u5f55\u65f6\u95f4\u7684\u79d2\u6570\u3002\u8fd9\u88ab\u79f0\u4e3a\u201cUnix\u65f6\u95f4\u6233\u201d\uff0c\u662f\u4e00\u79cd\u5e38\u7528\u7684\u65f6\u95f4\u8868\u793a\u65b9\u6cd5\u3002MySQL\u5185\u90e8\u4f1a\u81ea\u52a8\u5bf9\u65f6\u95f4\u6233\u8fdb\u884c\u8f6c\u6362\uff0c\u5728\u5b58\u50a8\u65f6\u5c06\u5176\u8f6c\u6362\u4e3aUTC\u65f6\u95f4\uff0c\u67e5\u8be2\u65f6\u518d\u6839\u636e\u65f6\u533a\u7b49\u4fe1\u606f\u8f6c\u6362\u4e3a\u672c\u5730\u65f6\u95f4\u3002<\/p>\n

\u503c\u5f97\u6ce8\u610f\u7684\u662f\uff0cMySQL\u4e2d\u7684\u65f6\u95f4\u6233\u6709\u4e24\u79cd\u7c7b\u578b\uff1aTIMESTAMP<\/code>\u548cDATETIME<\/code>\u3002\u5b83\u4eec\u5728\u5b58\u50a8\u65b9\u5f0f\u4e0a\u7565\u6709\u4e0d\u540c\u3002TIMESTAMP<\/code>\u5728\u5b58\u50a8\u65f6\u4f1a\u53d7\u5230\u65f6\u533a\u7684\u5f71\u54cd\uff0c\u800cDATETIME<\/code>\u4e0d\u53d7\u65f6\u533a\u5f71\u54cd\uff0c\u5b58\u50a8\u7684\u65f6\u95f4\u7cbe\u786e\u5230\u79d2\u3002<\/p>\n

2. MySQL\u65f6\u95f4\u6233\u7684\u5b9e\u73b0\u673a\u5236<\/strong><\/p>\n

MySQL\u5229\u7528\u7cfb\u7edf\u65f6\u95f4\u6765\u751f\u6210\u548c\u5b58\u50a8\u65f6\u95f4\u6233\u3002\u5728\u8bb0\u5f55\u6570\u636e\u65f6\uff0c\u5982\u679c\u5217\u7c7b\u578b\u5b9a\u4e49\u4e3aTIMESTAMP<\/code>\uff0c\u5f53\u63d2\u5165\u4e00\u6761\u8bb0\u5f55\u65f6\uff0cMySQL\u4f1a\u81ea\u52a8\u5c06\u5f53\u524d\u65f6\u95f4\u6233\u8d4b\u503c\u7ed9\u8be5\u5217\u3002\u5bf9\u4e8eDATETIME<\/code>\u7c7b\u578b\uff0c\u9700\u8981\u624b\u52a8\u4e3a\u8be5\u5217\u8d4b\u503c\u65f6\u95f4\u6233\u3002<\/p>\n

\u4e0b\u9762\u4ee5\u5177\u4f53\u7684MySQL\u4ee3\u7801\u793a\u4f8b\u6765\u8bf4\u660e\u65f6\u95f4\u6233\u7684\u5b9e\u73b0\u673a\u5236\uff1a<\/p>\n

-- \u521b\u5efa\u4e00\u4e2a\u8868\uff0c\u5305\u542bTIMESTAMP\u548cDATETIME\u7c7b\u578b\u7684\u5217\nCREATE TABLE logs (\n    log_id INT PRIMARY KEY,\n    log_content VARCHAR(255),\n    created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,  -- TIMESTAMP\u7c7b\u578b\u81ea\u52a8\u8d4b\u503c\u5f53\u524d\u65f6\u95f4\n    modified_at DATETIME  -- \u9700\u8981\u624b\u52a8\u8d4b\u503c\n);\n\n-- \u63d2\u5165\u4e00\u6761\u8bb0\u5f55\nINSERT INTO logs (log_id, log_content) VALUES (1, \"Hello World\");\n\n-- \u67e5\u8be2\u8bb0\u5f55\nSELECT * FROM logs;<\/pre>\n
\u4e0a\u8ff0\u4ee3\u7801\u521b\u5efa\u4e86\u4e00\u4e2a\u540d\u4e3alogs<\/code>\u7684\u8868\uff0c\u5305\u542blog_id<\/code>\u3001log_content<\/code>\u3001created_at<\/code>\u548cmodified_at<\/code>\u56db\u4e2a\u5217\uff0c\u5176\u4e2dcreated_at<\/code>\u5217\u4e3aTIMESTAMP<\/code>\u7c7b\u578b\uff0cmodified_at<\/code>\u5217\u4e3aDATETIME<\/code>\u7c7b\u578b\u3002\u63d2\u5165\u8bb0\u5f55\u65f6\uff0ccreated_at<\/code>\u5217\u4f1a\u81ea\u52a8\u8d4b\u503c\u4e3a\u5f53\u524d\u65f6\u95f4\u6233\uff0c\u800cmodified_at<\/code>\u5219\u9700\u8981\u624b\u52a8\u8d4b\u503c\u3002<\/p>\n
3. \u603b\u7ed3<\/strong><\/p>\n
\u672c\u6587\u5bf9MySQL\u65f6\u95f4\u6233\u7684\u539f\u7406\u4e0e\u5b9e\u73b0\u673a\u5236\u8fdb\u884c\u4e86\u89e3\u6790\uff0c\u4ecb\u7ecd\u4e86\u65f6\u95f4\u6233\u7684\u5b58\u50a8\u65b9\u5f0f\u53ca\u5176\u5728MySQL\u4e2d\u7684\u5e94\u7528\u3002\u901a\u8fc7\u4f7f\u7528TIMESTAMP<\/code>\u548cDATETIME<\/code>\u7c7b\u578b\u7684\u5217\uff0c\u53ef\u4ee5\u65b9\u4fbf\u5730\u8bb0\u5f55\u6570\u636e\u7684\u65f6\u95f4\u4fe1\u606f\uff0c\u5e76\u6839\u636e\u9700\u8981\u5bf9\u65f6\u95f4\u6233\u8fdb\u884c\u67e5\u627e\u3001\u6bd4\u8f83\u7b49\u64cd\u4f5c\u3002\u5e0c\u671b\u672c\u6587\u5bf9\u60a8\u7406\u89e3MySQL\u65f6\u95f4\u6233\u6709\u6240\u5e2e\u52a9\uff01<\/p>\n
\u597d\u4e86\uff0c\u672c\u6587\u5230\u6b64\u7ed3\u675f\uff0c\u5e26\u5927\u5bb6\u4e86\u89e3\u4e86\u300a\u89e3\u6790MySQL\u4e2d\u65f6\u95f4\u6233\u7684\u5de5\u4f5c\u539f\u7406\u548c\u5b9e\u73b0\u673a\u5236\u300b\uff0c\u5e0c\u671b\u672c\u6587\u5bf9\u4f60\u6709\u6240\u5e2e\u52a9\uff01\u5173\u6ce8\u4e3b\u673a\u5b9d\u8d1d\u516c\u4f17\u53f7\uff0c\u7ed9\u5927\u5bb6\u5206\u4eab\u66f4\u591a\u6570\u636e\u5e93\u77e5\u8bc6\uff01<\/p>\n
\n
\n <\/dt>\n<\/dl>\n","protected":false},"excerpt":{"rendered":"
\u89e3\u6790MySQL\u4e2d\u65f6\u95f4\u6233\u7684\u5de5\u4f5c\u539f\u7406...<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-200025","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/200025","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"}],"author":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=200025"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/200025\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=200025"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=200025"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=200025"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}