{"id":160263,"date":"2024-11-03T21:38:19","date_gmt":"2024-11-03T13:38:19","guid":{"rendered":"https:\/\/server.hk\/cnblog\/160263\/"},"modified":"2024-11-03T21:38:20","modified_gmt":"2024-11-03T13:38:20","slug":"oceanbase-%e6%95%99%e7%a8%8b%ef%bc%9aoceanbase-sysdate","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/160263\/","title":{"rendered":"OceanBase \u6559\u7a0b\uff1aOceanBase SYSDATE"},"content":{"rendered":"<h1 id=\"oceanbase-%e6%95%99%e7%a8%8b%ef%bc%9aoceanbase-sysdate-GbXCKRikrb\">OceanBase \u6559\u7a0b\uff1aOceanBase SYSDATE<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u6578\u64da\u5eab\u7ba1\u7406\u7cfb\u7d71\u4e2d\uff0c\u6642\u9593\u548c\u65e5\u671f\u7684\u8655\u7406\u662f\u975e\u5e38\u91cd\u8981\u7684\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\u65e5\u671f\u7684\u64cd\u4f5c\u3002\u5176\u4e2d\uff0cSYSDATE \u51fd\u6578\u662f\u4e00\u500b\u5e38\u7528\u7684\u5167\u5efa\u51fd\u6578\uff0c\u7528\u65bc\u7372\u53d6\u7576\u524d\u7684\u7cfb\u7d71\u65e5\u671f\u548c\u6642\u9593\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0e OceanBase \u4e2d\u7684 SYSDATE \u51fd\u6578\uff0c\u5305\u62ec\u5176\u7528\u6cd5\u3001\u7279\u6027\u53ca\u793a\u4f8b\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%af-sysdate-%e5%87%bd%e6%95%b8%ef%bc%9f-GbXCKRikrb\">\u4ec0\u9ebc\u662f SYSDATE \u51fd\u6578\uff1f<\/h2>\n<p>SYSDATE \u51fd\u6578\u662f\u4e00\u500b\u8fd4\u56de\u7576\u524d\u7cfb\u7d71\u65e5\u671f\u548c\u6642\u9593\u7684\u51fd\u6578\u3002\u5b83\u7684\u8fd4\u56de\u503c\u662f\u7576\u524d\u7684\u65e5\u671f\u548c\u6642\u9593\uff0c\u683c\u5f0f\u901a\u5e38\u70ba &#8216;YYYY-MM-DD HH:MM:SS&#8217;\u3002\u9019\u500b\u51fd\u6578\u5728\u8a31\u591a\u5834\u666f\u4e2d\u90fd\u975e\u5e38\u6709\u7528\uff0c\u4f8b\u5982\u8a18\u9304\u6578\u64da\u7684\u63d2\u5165\u6642\u9593\u3001\u67e5\u8a62\u6578\u64da\u7684\u66f4\u65b0\u6642\u9593\u7b49\u3002<\/p>\n<h2 id=\"sysdate-%e7%9a%84%e8%aa%9e%e6%b3%95-GbXCKRikrb\">SYSDATE \u7684\u8a9e\u6cd5<\/h2>\n<pre><code>SYSDATE<\/code><\/pre>\n<p>SYSDATE \u51fd\u6578\u4e0d\u9700\u8981\u4efb\u4f55\u53c3\u6578\uff0c\u76f4\u63a5\u8abf\u7528\u5373\u53ef\u7372\u53d6\u7576\u524d\u7684\u7cfb\u7d71\u6642\u9593\u3002<\/p>\n<h2 id=\"%e4%bd%bf%e7%94%a8-sysdate-%e7%9a%84%e7%a4%ba%e4%be%8b-GbXCKRikrb\">\u4f7f\u7528 SYSDATE \u7684\u793a\u4f8b<\/h2>\n<p>\u4ee5\u4e0b\u662f\u4e00\u4e9b\u4f7f\u7528 SYSDATE \u51fd\u6578\u7684\u793a\u4f8b\uff0c\u5e6b\u52a9\u60a8\u66f4\u597d\u5730\u7406\u89e3\u5176\u7528\u6cd5\u3002<\/p>\n<h3 id=\"%e7%a4%ba%e4%be%8b-1%ef%bc%9a%e7%8d%b2%e5%8f%96%e7%95%b6%e5%89%8d%e6%97%a5%e6%9c%9f%e5%92%8c%e6%99%82%e9%96%93-GbXCKRikrb\">\u793a\u4f8b 1\uff1a\u7372\u53d6\u7576\u524d\u65e5\u671f\u548c\u6642\u9593<\/h3>\n<pre><code>SELECT SYSDATE FROM DUAL;<\/code><\/pre>\n<p>\u9019\u689d\u67e5\u8a62\u5c07\u8fd4\u56de\u7576\u524d\u7684\u7cfb\u7d71\u65e5\u671f\u548c\u6642\u9593\u3002<\/p>\n<h3 id=\"%e7%a4%ba%e4%be%8b-2%ef%bc%9a%e6%8f%92%e5%85%a5%e7%95%b6%e5%89%8d%e6%99%82%e9%96%93%e5%88%b0%e8%a1%a8%e4%b8%ad-GbXCKRikrb\">\u793a\u4f8b 2\uff1a\u63d2\u5165\u7576\u524d\u6642\u9593\u5230\u8868\u4e2d<\/h3>\n<p>\u5047\u8a2d\u6211\u5011\u6709\u4e00\u500b\u540d\u70ba <code>orders<\/code> \u7684\u8868\uff0c\u5305\u542b\u4e00\u500b <code>order_time<\/code> \u5217\uff0c\u6211\u5011\u53ef\u4ee5\u4f7f\u7528 SYSDATE \u5c07\u7576\u524d\u6642\u9593\u63d2\u5165\u5230\u8a72\u5217\u4e2d\uff1a<\/p>\n<pre><code>INSERT INTO orders (order_id, order_time) VALUES (1, SYSDATE);<\/code><\/pre>\n<h3 id=\"%e7%a4%ba%e4%be%8b-3%ef%bc%9a%e6%9f%a5%e8%a9%a2%e7%89%b9%e5%ae%9a%e6%99%82%e9%96%93%e7%af%84%e5%9c%8d%e5%85%a7%e7%9a%84%e6%95%b8%e6%93%9a-GbXCKRikrb\">\u793a\u4f8b 3\uff1a\u67e5\u8a62\u7279\u5b9a\u6642\u9593\u7bc4\u570d\u5167\u7684\u6578\u64da<\/h3>\n<p>\u5982\u679c\u6211\u5011\u60f3\u67e5\u8a62\u5728\u904e\u53bb\u4e00\u5c0f\u6642\u5167\u63d2\u5165\u7684\u6240\u6709\u8a02\u55ae\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u67e5\u8a62\uff1a<\/p>\n<pre><code>SELECT * FROM orders WHERE order_time &gt; SYSDATE - INTERVAL '1' HOUR;<\/code><\/pre>\n<h2 id=\"sysdate-%e7%9a%84%e7%89%b9%e6%80%a7-GbXCKRikrb\">SYSDATE \u7684\u7279\u6027<\/h2>\n<ul>\n<li><strong>\u5373\u6642\u6027\uff1a<\/strong>SYSDATE \u51fd\u6578\u8fd4\u56de\u7684\u662f\u7576\u524d\u7cfb\u7d71\u7684\u65e5\u671f\u548c\u6642\u9593\uff0c\u78ba\u4fdd\u4e86\u6578\u64da\u7684\u5373\u6642\u6027\u3002<\/li>\n<li><strong>\u7121\u9700\u53c3\u6578\uff1a<\/strong>\u8a72\u51fd\u6578\u4e0d\u9700\u8981\u4efb\u4f55\u53c3\u6578\uff0c\u4f7f\u7528\u7c21\u55ae\u65b9\u4fbf\u3002<\/li>\n<li><strong>\u8207\u5176\u4ed6\u51fd\u6578\u7684\u7d50\u5408\uff1a<\/strong>SYSDATE \u53ef\u4ee5\u8207\u5176\u4ed6\u65e5\u671f\u548c\u6642\u9593\u51fd\u6578\u7d50\u5408\u4f7f\u7528\uff0c\u9032\u884c\u66f4\u8907\u96dc\u7684\u67e5\u8a62\u548c\u64cd\u4f5c\u3002<\/li>\n<\/ul>\n<h2 id=\"%e6%b3%a8%e6%84%8f%e4%ba%8b%e9%a0%85-GbXCKRikrb\">\u6ce8\u610f\u4e8b\u9805<\/h2>\n<p>\u5728\u4f7f\u7528 SYSDATE \u51fd\u6578\u6642\uff0c\u9700\u8981\u6ce8\u610f\u4ee5\u4e0b\u5e7e\u9ede\uff1a<\/p>\n<ul>\n<li>SYSDATE \u8fd4\u56de\u7684\u662f\u4f3a\u670d\u5668\u7684\u7576\u524d\u6642\u9593\uff0c\u53ef\u80fd\u6703\u53d7\u5230\u4f3a\u670d\u5668\u6642\u5340\u8a2d\u7f6e\u7684\u5f71\u97ff\u3002<\/li>\n<li>\u5728\u5206\u4f48\u5f0f\u7cfb\u7d71\u4e2d\uff0c\u78ba\u4fdd\u6240\u6709\u7bc0\u9ede\u7684\u6642\u9593\u540c\u6b65\u662f\u975e\u5e38\u91cd\u8981\u7684\uff0c\u4ee5\u907f\u514d\u6578\u64da\u4e0d\u4e00\u81f4\u7684\u554f\u984c\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-GbXCKRikrb\">\u7e3d\u7d50<\/h2>\n<p>OceanBase \u7684 SYSDATE \u51fd\u6578\u662f\u4e00\u500b\u5f37\u5927\u7684\u5de5\u5177\uff0c\u80fd\u5920\u5e6b\u52a9\u958b\u767c\u8005\u8f15\u9b06\u7372\u53d6\u7576\u524d\u7684\u7cfb\u7d71\u65e5\u671f\u548c\u6642\u9593\u3002\u7121\u8ad6\u662f\u5728\u6578\u64da\u63d2\u5165\u3001\u67e5\u8a62\u9084\u662f\u5176\u4ed6\u64cd\u4f5c\u4e2d\uff0cSYSDATE \u90fd\u80fd\u63d0\u4f9b\u5373\u6642\u7684\u6642\u9593\u4fe1\u606f\uff0c\u5c0d\u65bc\u6578\u64da\u7684\u7ba1\u7406\u548c\u5206\u6790\u81f3\u95dc\u91cd\u8981\u3002\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u9ad8\u6548\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u89e3\u6c7a\u65b9\u6848\uff0cServer.HK \u63d0\u4f9b\u4e86\u591a\u7a2e\u9078\u64c7\uff0c\u9069\u5408\u5404\u7a2e\u9700\u6c42\u3002\u4e86\u89e3\u66f4\u591a\u95dc\u65bc <a href=\"https:\/\/server.hk\">\u9999\u6e2f\u4f3a\u670d\u5668<\/a> \u7684\u4fe1\u606f\uff0c\u8acb\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Learn how to use OceanBase SYSDATE in this comprehensive tutorial, covering syntax, examples, and practical applications for effective database management.<\/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-160263","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/160263","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=160263"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/160263\/revisions"}],"predecessor-version":[{"id":160264,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/160263\/revisions\/160264"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=160263"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=160263"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=160263"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}