{"id":143941,"date":"2024-11-01T02:32:20","date_gmt":"2024-10-31T18:32:20","guid":{"rendered":"https:\/\/server.hk\/cnblog\/143941\/"},"modified":"2024-11-01T02:32:21","modified_gmt":"2024-10-31T18:32:21","slug":"sql-%e6%95%b8%e6%93%9a%e5%ba%ab%e6%8f%92%e5%85%a5%e6%93%8d%e4%bd%9c%ef%bc%9a%e5%a6%82%e4%bd%95%e6%ad%a3%e7%a2%ba%e6%b7%bb%e5%8a%a0%e6%99%82%e9%96%93%e8%a8%98%e9%8c%84%ef%bc%9f-%e6%95%b8%e6%93%9a","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/143941\/","title":{"rendered":"SQL \u6578\u64da\u5eab\u63d2\u5165\u64cd\u4f5c\uff1a\u5982\u4f55\u6b63\u78ba\u6dfb\u52a0\u6642\u9593\u8a18\u9304\uff1f (\u6578\u64da\u5eab sql \u63d2\u5165\u6642\u9593)"},"content":{"rendered":"<h1 id=\"sql-%e6%95%b8%e6%93%9a%e5%ba%ab%e6%8f%92%e5%85%a5%e6%93%8d%e4%bd%9c%ef%bc%9a%e5%a6%82%e4%bd%95%e6%ad%a3%e7%a2%ba%e6%b7%bb%e5%8a%a0%e6%99%82%e9%96%93%e8%a8%98%e9%8c%84%ef%bc%9f-Sbkccnvncq\">SQL \u6578\u64da\u5eab\u63d2\u5165\u64cd\u4f5c\uff1a\u5982\u4f55\u6b63\u78ba\u6dfb\u52a0\u6642\u9593\u8a18\u9304\uff1f<\/h1>\n<p>\u5728\u73fe\u4ee3\u61c9\u7528\u7a0b\u5e8f\u4e2d\uff0c\u6578\u64da\u5eab\u7684\u4f7f\u7528\u5df2\u7d93\u6210\u70ba\u4e0d\u53ef\u6216\u7f3a\u7684\u4e00\u90e8\u5206\u3002\u7279\u5225\u662f\u5728\u8655\u7406\u6642\u9593\u8a18\u9304\u6642\uff0c\u6b63\u78ba\u7684\u63d2\u5165\u64cd\u4f5c\u5c0d\u65bc\u6578\u64da\u7684\u6e96\u78ba\u6027\u548c\u5b8c\u6574\u6027\u81f3\u95dc\u91cd\u8981\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5982\u4f55\u5728 SQL \u6578\u64da\u5eab\u4e2d\u6b63\u78ba\u5730\u6dfb\u52a0\u6642\u9593\u8a18\u9304\uff0c\u4e26\u63d0\u4f9b\u4e00\u4e9b\u5be6\u7528\u7684\u793a\u4f8b\u548c\u5efa\u8b70\u3002<\/p>\n<h2 id=\"%e6%99%82%e9%96%93%e6%95%b8%e6%93%9a%e9%a1%9e%e5%9e%8b%e7%9a%84%e9%81%b8%e6%93%87-Sbkccnvncq\">\u6642\u9593\u6578\u64da\u985e\u578b\u7684\u9078\u64c7<\/h2>\n<p>\u5728 SQL \u6578\u64da\u5eab\u4e2d\uff0c\u6642\u9593\u8a18\u9304\u901a\u5e38\u4f7f\u7528\u4ee5\u4e0b\u5e7e\u7a2e\u6578\u64da\u985e\u578b\uff1a<\/p>\n<ul>\n<li><strong>DATETIME<\/strong>\uff1a\u7528\u65bc\u5b58\u5132\u65e5\u671f\u548c\u6642\u9593\uff0c\u7bc4\u570d\u5f9e 1753 \u5e74\u5230 9999 \u5e74\uff0c\u7cbe\u5ea6\u70ba 3.33 \u6beb\u79d2\u3002<\/li>\n<li><strong>DATE<\/strong>\uff1a\u50c5\u5b58\u5132\u65e5\u671f\uff0c\u7bc4\u570d\u5f9e 1000 \u5e74\u5230 9999 \u5e74\u3002<\/li>\n<li><strong>TIME<\/strong>\uff1a\u50c5\u5b58\u5132\u6642\u9593\uff0c\u7bc4\u570d\u5f9e &#8216;-838:59:59&#8217; \u5230 &#8216;838:59:59&#8217;\u3002<\/li>\n<li><strong>TIMESTAMP<\/strong>\uff1a\u81ea 1970 \u5e74 1 \u6708 1 \u65e5\u4ee5\u4f86\u7684\u79d2\u6578\uff0c\u901a\u5e38\u7528\u65bc\u8a18\u9304\u4e8b\u4ef6\u7684\u6642\u9593\u6233\u3002<\/li>\n<\/ul>\n<p>\u9078\u64c7\u5408\u9069\u7684\u6578\u64da\u985e\u578b\u53d6\u6c7a\u65bc\u61c9\u7528\u7a0b\u5e8f\u7684\u9700\u6c42\u3002\u4f8b\u5982\uff0c\u5982\u679c\u9700\u8981\u8a18\u9304\u4e8b\u4ef6\u7684\u5177\u9ad4\u6642\u9593\uff0c\u5247\u61c9\u4f7f\u7528 <code>DATETIME<\/code> \u6216 <code>TIMESTAMP<\/code>\u3002<\/p>\n<h2 id=\"%e6%8f%92%e5%85%a5%e6%99%82%e9%96%93%e8%a8%98%e9%8c%84%e7%9a%84%e5%9f%ba%e6%9c%ac%e8%aa%9e%e6%b3%95-Sbkccnvncq\">\u63d2\u5165\u6642\u9593\u8a18\u9304\u7684\u57fa\u672c\u8a9e\u6cd5<\/h2>\n<p>\u5728 SQL \u4e2d\uff0c\u63d2\u5165\u6642\u9593\u8a18\u9304\u7684\u57fa\u672c\u8a9e\u6cd5\u5982\u4e0b\uff1a<\/p>\n<pre><code>INSERT INTO \u8868\u540d (\u6642\u9593\u6b04\u4f4d) VALUES ('\u6642\u9593\u503c');<\/code><\/pre>\n<p>\u4ee5\u4e0b\u662f\u4e00\u500b\u5177\u9ad4\u7684\u793a\u4f8b\uff0c\u5047\u8a2d\u6211\u5011\u6709\u4e00\u500b\u540d\u70ba <code>events<\/code> \u7684\u8868\uff0c\u4e26\u4e14\u6211\u5011\u5e0c\u671b\u63d2\u5165\u4e00\u500b\u4e8b\u4ef6\u7684\u6642\u9593\u8a18\u9304\uff1a<\/p>\n<pre><code>INSERT INTO events (event_time) VALUES ('2023-10-01 12:30:00');<\/code><\/pre>\n<h2 id=\"%e4%bd%bf%e7%94%a8%e7%95%b6%e5%89%8d%e6%99%82%e9%96%93%e6%8f%92%e5%85%a5-Sbkccnvncq\">\u4f7f\u7528\u7576\u524d\u6642\u9593\u63d2\u5165<\/h2>\n<p>\u5728\u8a31\u591a\u60c5\u6cc1\u4e0b\uff0c\u6211\u5011\u5e0c\u671b\u81ea\u52d5\u63d2\u5165\u7576\u524d\u7684\u6642\u9593\u3002\u9019\u53ef\u4ee5\u901a\u904e\u4f7f\u7528 SQL \u7684 <code>NOW()<\/code> \u51fd\u6578\u4f86\u5be6\u73fe\uff1a<\/p>\n<pre><code>INSERT INTO events (event_time) VALUES (NOW());<\/code><\/pre>\n<p>\u9019\u6a23\uff0c\u7576\u63d2\u5165\u64cd\u4f5c\u57f7\u884c\u6642\uff0c<code>event_time<\/code> \u6b04\u4f4d\u5c07\u81ea\u52d5\u586b\u5165\u7576\u524d\u7684\u65e5\u671f\u548c\u6642\u9593\u3002<\/p>\n<h2 id=\"%e8%99%95%e7%90%86%e6%99%82%e5%8d%80%e5%95%8f%e9%a1%8c-Sbkccnvncq\">\u8655\u7406\u6642\u5340\u554f\u984c<\/h2>\n<p>\u5728\u5168\u7403\u5316\u7684\u61c9\u7528\u4e2d\uff0c\u6642\u5340\u554f\u984c\u662f\u4e0d\u53ef\u5ffd\u8996\u7684\u3002\u4e0d\u540c\u7684\u7528\u6236\u53ef\u80fd\u4f4d\u65bc\u4e0d\u540c\u7684\u6642\u5340\uff0c\u56e0\u6b64\u5728\u63d2\u5165\u6642\u9593\u8a18\u9304\u6642\uff0c\u61c9\u8003\u616e\u5230\u9019\u4e00\u9ede\u3002\u53ef\u4ee5\u4f7f\u7528 <code>CONVERT_TZ()<\/code> \u51fd\u6578\u4f86\u8f49\u63db\u6642\u5340\uff1a<\/p>\n<pre><code>INSERT INTO events (event_time) VALUES (CONVERT_TZ(NOW(), '\u539f\u6642\u5340', '\u76ee\u6a19\u6642\u5340'));<\/code><\/pre>\n<p>\u4f8b\u5982\uff0c\u5982\u679c\u6211\u5011\u5e0c\u671b\u5c07\u7576\u524d\u6642\u9593\u5f9e UTC \u8f49\u63db\u70ba\u9999\u6e2f\u6642\u9593\uff0c\u53ef\u4ee5\u9019\u6a23\u5beb\uff1a<\/p>\n<pre><code>INSERT INTO events (event_time) VALUES (CONVERT_TZ(NOW(), '+00:00', '+08:00'));<\/code><\/pre>\n<h2 id=\"%e9%81%bf%e5%85%8d%e6%8f%92%e5%85%a5%e9%8c%af%e8%aa%a4%e7%9a%84%e6%99%82%e9%96%93%e6%a0%bc%e5%bc%8f-Sbkccnvncq\">\u907f\u514d\u63d2\u5165\u932f\u8aa4\u7684\u6642\u9593\u683c\u5f0f<\/h2>\n<p>\u5728\u63d2\u5165\u6642\u9593\u8a18\u9304\u6642\uff0c\u78ba\u4fdd\u6642\u9593\u683c\u5f0f\u6b63\u78ba\u662f\u975e\u5e38\u91cd\u8981\u7684\u3002SQL \u5c0d\u6642\u9593\u683c\u5f0f\u6709\u56b4\u683c\u7684\u8981\u6c42\uff0c\u901a\u5e38\u61c9\u4f7f\u7528 <code>YYYY-MM-DD HH:MM:SS<\/code> \u7684\u683c\u5f0f\u3002\u5982\u679c\u683c\u5f0f\u4e0d\u6b63\u78ba\uff0c\u5c07\u5c0e\u81f4\u63d2\u5165\u5931\u6557\u6216\u6578\u64da\u932f\u8aa4\u3002<\/p>\n<p>\u70ba\u4e86\u907f\u514d\u9019\u4e9b\u554f\u984c\uff0c\u53ef\u4ee5\u5728\u61c9\u7528\u5c64\u9032\u884c\u683c\u5f0f\u9a57\u8b49\uff0c\u6216\u8005\u4f7f\u7528 SQL \u7684 <code>STR_TO_DATE()<\/code> \u51fd\u6578\u4f86\u8f49\u63db\u5b57\u7b26\u4e32\u70ba\u65e5\u671f\u6642\u9593\u683c\u5f0f\uff1a<\/p>\n<pre><code>INSERT INTO events (event_time) VALUES (STR_TO_DATE('2023\/10\/01 12:30:00', '%Y\/%m\/%d %H:%i:%s'));<\/code><\/pre>\n<h2 id=\"%e7%b8%bd%e7%b5%90-Sbkccnvncq\">\u7e3d\u7d50<\/h2>\n<p>\u5728 SQL \u6578\u64da\u5eab\u4e2d\u6b63\u78ba\u5730\u63d2\u5165\u6642\u9593\u8a18\u9304\u662f\u78ba\u4fdd\u6578\u64da\u6e96\u78ba\u6027\u548c\u5b8c\u6574\u6027\u7684\u95dc\u9375\u3002\u9078\u64c7\u5408\u9069\u7684\u6578\u64da\u985e\u578b\u3001\u4f7f\u7528\u7576\u524d\u6642\u9593\u3001\u8655\u7406\u6642\u5340\u554f\u984c\u4ee5\u53ca\u907f\u514d\u683c\u5f0f\u932f\u8aa4\u90fd\u662f\u6210\u529f\u7684\u95dc\u9375\u56e0\u7d20\u3002\u901a\u904e\u9075\u5faa\u9019\u4e9b\u6700\u4f73\u5be6\u8e10\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u6709\u6548\u5730\u7ba1\u7406\u6642\u9593\u6578\u64da\uff0c\u63d0\u5347\u61c9\u7528\u7a0b\u5e8f\u7684\u53ef\u9760\u6027\u3002<\/p>\n<p>\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u9ad8\u6548\u7684 <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u89e3\u6c7a\u65b9\u6848\u4f86\u652f\u6301\u60a8\u7684\u6578\u64da\u5eab\u64cd\u4f5c\uff0cServer.HK \u63d0\u4f9b\u591a\u7a2e\u9078\u64c7\u4ee5\u6eff\u8db3\u60a8\u7684\u9700\u6c42\u3002\u7121\u8ad6\u662f <a href=\"https:\/\/server.hk\">\u4e91\u670d\u52a1\u5668<\/a> \u9084\u662f <a href=\"https:\/\/server.hk\">\u9999\u6e2f\u670d\u52a1\u5668<\/a>\uff0c\u6211\u5011\u90fd\u80fd\u70ba\u60a8\u63d0\u4f9b\u7a69\u5b9a\u7684\u652f\u6301\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5b78\u7fd2\u5982\u4f55\u5728 SQL \u6578\u64da\u5eab\u4e2d\u6b63\u78ba\u63d2\u5165\u6642\u9593\u8a18\u9304\uff0c\u78ba\u4fdd\u6578\u64da\u6e96\u78ba\u6027\u8207\u4e00\u81f4\u6027\uff0c\u63d0\u5347\u6578\u64da\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-143941","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/143941","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=143941"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/143941\/revisions"}],"predecessor-version":[{"id":143942,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/143941\/revisions\/143942"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=143941"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=143941"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=143941"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}