{"id":160139,"date":"2024-11-03T20:36:17","date_gmt":"2024-11-03T12:36:17","guid":{"rendered":"https:\/\/server.hk\/cnblog\/160139\/"},"modified":"2024-11-03T20:36:19","modified_gmt":"2024-11-03T12:36:19","slug":"oceanbase-%e6%95%99%e7%a8%8b%ef%bc%9aoceanbase-from_tz","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/160139\/","title":{"rendered":"OceanBase \u6559\u7a0b\uff1aOceanBase FROM_TZ"},"content":{"rendered":"<h1 id=\"oceanbase-%e6%95%99%e7%a8%8b%ef%bc%9aoceanbase-from_tz-TdzPVstLsX\">OceanBase \u6559\u7a0b\uff1aOceanBase FROM_TZ<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u6578\u64da\u5eab\u7ba1\u7406\u7cfb\u7d71\u4e2d\uff0c\u6642\u9593\u548c\u6642\u5340\u7684\u8655\u7406\u662f\u4e00\u500b\u81f3\u95dc\u91cd\u8981\u7684\u8ab2\u984c\u3002OceanBase \u4f5c\u70ba\u4e00\u500b\u9ad8\u6027\u80fd\u7684\u5206\u4f48\u5f0f\u6578\u64da\u5eab\uff0c\u63d0\u4f9b\u4e86\u591a\u7a2e\u529f\u80fd\u4f86\u652f\u6301\u6642\u9593\u548c\u6642\u5340\u7684\u7ba1\u7406\u3002\u5176\u4e2d\uff0c<code>FROM_TZ<\/code> \u51fd\u6578\u662f\u4e00\u500b\u975e\u5e38\u6709\u7528\u7684\u5de5\u5177\uff0c\u80fd\u5920\u5e6b\u52a9\u7528\u6236\u5c07\u6642\u9593\u6233\u8f49\u63db\u70ba\u7279\u5b9a\u6642\u5340\u7684\u6642\u9593\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0e OceanBase \u4e2d\u7684 <code>FROM_TZ<\/code> \u51fd\u6578\u7684\u7528\u6cd5\u53ca\u5176\u61c9\u7528\u5834\u666f\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%af-from_tz-%e5%87%bd%e6%95%b8%ef%bc%9f-TdzPVstLsX\">\u4ec0\u9ebc\u662f FROM_TZ \u51fd\u6578\uff1f<\/h2>\n<p><code>FROM_TZ<\/code> \u51fd\u6578\u7684\u4e3b\u8981\u529f\u80fd\u662f\u5c07\u4e00\u500b\u6642\u9593\u6233\u8f49\u63db\u70ba\u6307\u5b9a\u6642\u5340\u7684\u6642\u9593\u3002\u9019\u5728\u8655\u7406\u8de8\u6642\u5340\u7684\u6578\u64da\u6642\u5c24\u70ba\u91cd\u8981\uff0c\u56e0\u70ba\u4e0d\u540c\u5730\u5340\u7684\u6642\u9593\u53ef\u80fd\u6703\u6709\u6240\u4e0d\u540c\u3002\u4f7f\u7528 <code>FROM_TZ<\/code> \u51fd\u6578\uff0c\u53ef\u4ee5\u78ba\u4fdd\u5728\u67e5\u8a62\u548c\u5831\u544a\u4e2d\u986f\u793a\u6b63\u78ba\u7684\u6642\u9593\u3002<\/p>\n<h2 id=\"from_tz-%e5%87%bd%e6%95%b8%e7%9a%84%e8%aa%9e%e6%b3%95-TdzPVstLsX\">FROM_TZ \u51fd\u6578\u7684\u8a9e\u6cd5<\/h2>\n<p>\u5728 OceanBase \u4e2d\uff0c<code>FROM_TZ<\/code> \u51fd\u6578\u7684\u57fa\u672c\u8a9e\u6cd5\u5982\u4e0b\uff1a<\/p>\n<pre><code>FROM_TZ(timestamp, timezone)<\/code><\/pre>\n<ul>\n<li><code>timestamp<\/code>: \u8981\u8f49\u63db\u7684\u6642\u9593\u6233\uff0c\u901a\u5e38\u662f <code>TIMESTAMP<\/code> \u6216 <code>DATETIME<\/code> \u985e\u578b\u3002<\/li>\n<li><code>timezone<\/code>: \u8981\u8f49\u63db\u5230\u7684\u6642\u5340\uff0c\u901a\u5e38\u662f\u5b57\u7b26\u4e32\u683c\u5f0f\uff0c\u4f8b\u5982 &#8216;Asia\/Hong_Kong&#8217;\u3002<\/li>\n<\/ul>\n<h2 id=\"%e4%bd%bf%e7%94%a8%e7%a4%ba%e4%be%8b-TdzPVstLsX\">\u4f7f\u7528\u793a\u4f8b<\/h2>\n<p>\u4ee5\u4e0b\u662f\u4e00\u500b\u4f7f\u7528 <code>FROM_TZ<\/code> \u51fd\u6578\u7684\u793a\u4f8b\uff0c\u5047\u8a2d\u6211\u5011\u6709\u4e00\u500b\u6642\u9593\u6233 &#8216;2023-10-01 12:00:00&#8217;\uff0c\u6211\u5011\u5e0c\u671b\u5c07\u5176\u8f49\u63db\u70ba\u9999\u6e2f\u6642\u5340\u7684\u6642\u9593\uff1a<\/p>\n<pre><code>SELECT FROM_TZ('2023-10-01 12:00:00', 'Asia\/Hong_Kong') AS hk_time;<\/code><\/pre>\n<p>\u57f7\u884c\u4e0a\u8ff0\u67e5\u8a62\u5f8c\uff0c\u5c07\u8fd4\u56de\u9999\u6e2f\u6642\u5340\u7684\u6642\u9593\uff0c\u9019\u5c0d\u65bc\u9700\u8981\u5728\u4e0d\u540c\u6642\u5340\u4e4b\u9593\u9032\u884c\u6578\u64da\u6bd4\u8f03\u7684\u61c9\u7528\u5834\u666f\u975e\u5e38\u6709\u7528\u3002<\/p>\n<h2 id=\"%e6%87%89%e7%94%a8%e5%a0%b4%e6%99%af-TdzPVstLsX\">\u61c9\u7528\u5834\u666f<\/h2>\n<p>\u4f7f\u7528 <code>FROM_TZ<\/code> \u51fd\u6578\u7684\u5834\u666f\u975e\u5e38\u5ee3\u6cdb\uff0c\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u898b\u7684\u61c9\u7528\uff1a<\/p>\n<ul>\n<li><strong>\u8de8\u570b\u4f01\u696d\u5831\u544a\uff1a<\/strong> \u5728\u5168\u7403\u904b\u71df\u7684\u4f01\u696d\u4e2d\uff0c\u5831\u544a\u548c\u6578\u64da\u5206\u6790\u9700\u8981\u8003\u616e\u4e0d\u540c\u5730\u5340\u7684\u6642\u9593\u5dee\u7570\u3002<\/li>\n<li><strong>\u4e8b\u4ef6\u8a18\u9304\uff1a<\/strong> \u5728\u8a18\u9304\u4e8b\u4ef6\u6642\uff0c\u78ba\u4fdd\u6642\u9593\u7684\u6e96\u78ba\u6027\u5c0d\u65bc\u5f8c\u7e8c\u7684\u5206\u6790\u548c\u8ffd\u8e64\u81f3\u95dc\u91cd\u8981\u3002<\/li>\n<li><strong>\u7528\u6236\u754c\u9762\u986f\u793a\uff1a<\/strong> \u5728\u7528\u6236\u754c\u9762\u4e2d\u986f\u793a\u6b63\u78ba\u7684\u672c\u5730\u6642\u9593\u53ef\u4ee5\u63d0\u5347\u7528\u6236\u9ad4\u9a57\u3002<\/li>\n<\/ul>\n<h2 id=\"%e6%b3%a8%e6%84%8f%e4%ba%8b%e9%a0%85-TdzPVstLsX\">\u6ce8\u610f\u4e8b\u9805<\/h2>\n<p>\u5728\u4f7f\u7528 <code>FROM_TZ<\/code> \u51fd\u6578\u6642\uff0c\u6709\u5e7e\u9ede\u9700\u8981\u6ce8\u610f\uff1a<\/p>\n<ul>\n<li>\u78ba\u4fdd\u63d0\u4f9b\u7684\u6642\u5340\u5b57\u7b26\u4e32\u662f\u6709\u6548\u7684\uff0c\u5426\u5247\u5c07\u6703\u5c0e\u81f4\u932f\u8aa4\u3002<\/li>\n<li>\u6642\u9593\u6233\u7684\u683c\u5f0f\u5fc5\u9808\u6b63\u78ba\uff0c\u5426\u5247\u8f49\u63db\u5c07\u7121\u6cd5\u6210\u529f\u3002<\/li>\n<li>\u8003\u616e\u590f\u4ee4\u6642\u9593\u7684\u5f71\u97ff\uff0c\u67d0\u4e9b\u5730\u5340\u7684\u6642\u9593\u53ef\u80fd\u6703\u56e0\u70ba\u590f\u4ee4\u6642\u9593\u800c\u6709\u6240\u8b8a\u5316\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-TdzPVstLsX\">\u7e3d\u7d50<\/h2>\n<p>OceanBase \u7684 <code>FROM_TZ<\/code> \u51fd\u6578\u70ba\u7528\u6236\u63d0\u4f9b\u4e86\u4e00\u500b\u5f37\u5927\u7684\u5de5\u5177\u4f86\u8655\u7406\u6642\u9593\u548c\u6642\u5340\u7684\u8f49\u63db\u3002\u7121\u8ad6\u662f\u5728\u8de8\u570b\u4f01\u696d\u7684\u5831\u544a\u4e2d\uff0c\u9084\u662f\u5728\u7528\u6236\u754c\u9762\u7684\u6642\u9593\u986f\u793a\u4e2d\uff0c\u6b63\u78ba\u7684\u6642\u9593\u8655\u7406\u90fd\u662f\u81f3\u95dc\u91cd\u8981\u7684\u3002\u901a\u904e\u5408\u7406\u4f7f\u7528 <code>FROM_TZ<\/code> \u51fd\u6578\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u78ba\u4fdd\u6578\u64da\u7684\u6e96\u78ba\u6027\u548c\u4e00\u81f4\u6027\u3002<\/p>\n<p>\u5982\u679c\u60a8\u5c0d\u65bc <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u670d\u52d9\u6709\u8208\u8da3\uff0c\u6216\u60f3\u4e86\u89e3\u66f4\u591a\u95dc\u65bc <a href=\"https:\/\/server.hk\">\u4e91\u670d\u52a1\u5668<\/a> \u7684\u4fe1\u606f\uff0c\u6b61\u8fce\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u4ee5\u7372\u53d6\u66f4\u591a\u8cc7\u6e90\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Learn how to use OceanBase&#8217;s FROM_TZ function in our comprehensive tutorial, enhancing your database management skills with timezone conversions.<\/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-160139","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/160139","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=160139"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/160139\/revisions"}],"predecessor-version":[{"id":160140,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/160139\/revisions\/160140"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=160139"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=160139"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=160139"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}