{"id":160553,"date":"2024-11-03T23:03:21","date_gmt":"2024-11-03T15:03:21","guid":{"rendered":"https:\/\/server.hk\/cnblog\/160553\/"},"modified":"2024-11-03T23:03:22","modified_gmt":"2024-11-03T15:03:22","slug":"oceanbase-%e6%95%99%e7%a8%8b%ef%bc%9aoceanbase-%e6%97%a5%e6%9c%9f%e6%99%82%e9%96%93%e9%81%8b%e7%ae%97%e7%ac%a6","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/160553\/","title":{"rendered":"OceanBase \u6559\u7a0b\uff1aOceanBase \u65e5\u671f\u6642\u9593\u904b\u7b97\u7b26"},"content":{"rendered":"<h1 id=\"oceanbase-%e6%95%99%e7%a8%8b%ef%bc%9aoceanbase-%e6%97%a5%e6%9c%9f%e6%99%82%e9%96%93%e9%81%8b%e7%ae%97%e7%ac%a6-oSitYnlRdl\">OceanBase \u6559\u7a0b\uff1aOceanBase \u65e5\u671f\u6642\u9593\u904b\u7b97\u7b26<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u6578\u64da\u5eab\u7ba1\u7406\u7cfb\u7d71\u4e2d\uff0c\u65e5\u671f\u548c\u6642\u9593\u7684\u8655\u7406\u662f\u975e\u5e38\u91cd\u8981\u7684\u4e00\u74b0\u3002OceanBase \u4f5c\u70ba\u4e00\u6b3e\u9ad8\u6027\u80fd\u7684\u5206\u4f48\u5f0f\u6578\u64da\u5eab\uff0c\u63d0\u4f9b\u4e86\u591a\u7a2e\u65e5\u671f\u6642\u9593\u904b\u7b97\u7b26\uff0c\u5e6b\u52a9\u7528\u6236\u9032\u884c\u9748\u6d3b\u7684\u6642\u9593\u6578\u64da\u64cd\u4f5c\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0e OceanBase \u4e2d\u7684\u65e5\u671f\u6642\u9593\u904b\u7b97\u7b26\uff0c\u4e26\u63d0\u4f9b\u4e00\u4e9b\u5be6\u7528\u7684\u793a\u4f8b\u3002<\/p>\n<h2 id=\"1-oceanbase-%e6%97%a5%e6%9c%9f%e6%99%82%e9%96%93%e9%a1%9e%e5%9e%8b-oSitYnlRdl\">1. OceanBase \u65e5\u671f\u6642\u9593\u985e\u578b<\/h2>\n<p>\u5728 OceanBase \u4e2d\uff0c\u65e5\u671f\u6642\u9593\u985e\u578b\u4e3b\u8981\u5305\u62ec\u4ee5\u4e0b\u5e7e\u7a2e\uff1a<\/p>\n<ul>\n<li><code>DATE<\/code>\uff1a\u8868\u793a\u65e5\u671f\uff0c\u683c\u5f0f\u70ba &#8216;YYYY-MM-DD&#8217;\u3002<\/li>\n<li><code>DATETIME<\/code>\uff1a\u8868\u793a\u65e5\u671f\u548c\u6642\u9593\uff0c\u683c\u5f0f\u70ba &#8216;YYYY-MM-DD HH:MM:SS&#8217;\u3002<\/li>\n<li><code>TIMESTAMP<\/code>\uff1a\u8868\u793a\u6642\u9593\u6233\uff0c\u901a\u5e38\u7528\u65bc\u8a18\u9304\u4e8b\u4ef6\u767c\u751f\u7684\u5177\u9ad4\u6642\u9593\u3002<\/li>\n<li><code>TIME<\/code>\uff1a\u8868\u793a\u6642\u9593\uff0c\u683c\u5f0f\u70ba &#8216;HH:MM:SS&#8217;\u3002<\/li>\n<\/ul>\n<h2 id=\"2-%e6%97%a5%e6%9c%9f%e6%99%82%e9%96%93%e9%81%8b%e7%ae%97%e7%ac%a6-oSitYnlRdl\">2. \u65e5\u671f\u6642\u9593\u904b\u7b97\u7b26<\/h2>\n<p>OceanBase \u63d0\u4f9b\u4e86\u591a\u7a2e\u904b\u7b97\u7b26\u4f86\u8655\u7406\u65e5\u671f\u548c\u6642\u9593\uff0c\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u7528\u7684\u904b\u7b97\u7b26\uff1a<\/p>\n<h3 id=\"2-1-%e5%8a%a0%e6%b3%95%e9%81%8b%e7%ae%97%e7%ac%a6-oSitYnlRdl\">2.1 \u52a0\u6cd5\u904b\u7b97\u7b26 (+)<\/h3>\n<p>\u52a0\u6cd5\u904b\u7b97\u7b26\u53ef\u7528\u65bc\u5c07\u6642\u9593\u9593\u9694\u6dfb\u52a0\u5230\u65e5\u671f\u6216\u6642\u9593\u4e0a\u3002\u4f8b\u5982\uff1a<\/p>\n<pre><code>SELECT DATE_ADD('2023-01-01', INTERVAL 10 DAY);<\/code><\/pre>\n<p>\u4e0a\u8ff0\u67e5\u8a62\u5c07\u8fd4\u56de &#8216;2023-01-11&#8217;\uff0c\u5373\u5728 &#8216;2023-01-01&#8217; \u7684\u57fa\u790e\u4e0a\u589e\u52a0\u4e86 10 \u5929\u3002<\/p>\n<h3 id=\"2-2-%e6%b8%9b%e6%b3%95%e9%81%8b%e7%ae%97%e7%ac%a6-oSitYnlRdl\">2.2 \u6e1b\u6cd5\u904b\u7b97\u7b26 (-)<\/h3>\n<p>\u6e1b\u6cd5\u904b\u7b97\u7b26\u5247\u7528\u65bc\u5f9e\u65e5\u671f\u6216\u6642\u9593\u4e2d\u6e1b\u53bb\u6642\u9593\u9593\u9694\u3002\u4f8b\u5982\uff1a<\/p>\n<pre><code>SELECT DATE_SUB('2023-01-11', INTERVAL 10 DAY);<\/code><\/pre>\n<p>\u9019\u5c07\u8fd4\u56de &#8216;2023-01-01&#8217;\uff0c\u5373\u5f9e &#8216;2023-01-11&#8217; \u6e1b\u53bb 10 \u5929\u3002<\/p>\n<h3 id=\"2-3-%e6%af%94%e8%bc%83%e9%81%8b%e7%ae%97%e7%ac%a6-oSitYnlRdl\">2.3 \u6bd4\u8f03\u904b\u7b97\u7b26<\/h3>\n<p>OceanBase \u4e5f\u652f\u6301\u591a\u7a2e\u6bd4\u8f03\u904b\u7b97\u7b26\uff0c\u4f8b\u5982\uff1a<\/p>\n<ul>\n<li><code>=<\/code>\uff1a\u7b49\u65bc<\/li>\n<li><code>&gt;<\/code>\uff1a\u5927\u65bc<\/li>\n<li><code>&lt;<\/code>\uff1a\u5c0f\u65bc<\/li>\n<li><code>&gt;=<\/code>\uff1a\u5927\u65bc\u7b49\u65bc<\/li>\n<li><code>&lt;=<\/code>\uff1a\u5c0f\u65bc\u7b49\u65bc<\/li>\n<\/ul>\n<p>\u4f8b\u5982\uff0c\u4ee5\u4e0b\u67e5\u8a62\u5c07\u8fd4\u56de\u6240\u6709\u5728 &#8216;2023-01-01&#8217; \u4e4b\u5f8c\u7684\u8a18\u9304\uff1a<\/p>\n<pre><code>SELECT * FROM your_table WHERE your_date_column &gt; '2023-01-01';<\/code><\/pre>\n<h3 id=\"2-4-%e6%97%a5%e6%9c%9f%e6%99%82%e9%96%93%e5%87%bd%e6%95%b8-oSitYnlRdl\">2.4 \u65e5\u671f\u6642\u9593\u51fd\u6578<\/h3>\n<p>OceanBase \u9084\u63d0\u4f9b\u4e86\u4e00\u4e9b\u5167\u5efa\u7684\u65e5\u671f\u6642\u9593\u51fd\u6578\uff0c\u9019\u4e9b\u51fd\u6578\u53ef\u4ee5\u7528\u4f86\u9032\u884c\u66f4\u8907\u96dc\u7684\u64cd\u4f5c\uff1a<\/p>\n<ul>\n<li><code>NOW()<\/code>\uff1a\u8fd4\u56de\u7576\u524d\u7684\u65e5\u671f\u548c\u6642\u9593\u3002<\/li>\n<li><code>CURDATE()<\/code>\uff1a\u8fd4\u56de\u7576\u524d\u7684\u65e5\u671f\u3002<\/li>\n<li><code>DATEDIFF(date1, date2)<\/code>\uff1a\u8fd4\u56de\u5169\u500b\u65e5\u671f\u4e4b\u9593\u7684\u5929\u6578\u5dee\u3002<\/li>\n<\/ul>\n<p>\u4f8b\u5982\uff0c\u4f7f\u7528 <code>DATEDIFF<\/code> \u51fd\u6578\u4f86\u8a08\u7b97\u5169\u500b\u65e5\u671f\u4e4b\u9593\u7684\u5dee\u7570\uff1a<\/p>\n<pre><code>SELECT DATEDIFF('2023-01-11', '2023-01-01');<\/code><\/pre>\n<p>\u9019\u5c07\u8fd4\u56de 10\uff0c\u8868\u793a\u5169\u500b\u65e5\u671f\u4e4b\u9593\u76f8\u5dee 10 \u5929\u3002<\/p>\n<h2 id=\"3-%e5%af%a6%e9%9a%9b%e6%87%89%e7%94%a8%e6%a1%88%e4%be%8b-oSitYnlRdl\">3. \u5be6\u969b\u61c9\u7528\u6848\u4f8b<\/h2>\n<p>\u5728\u5be6\u969b\u61c9\u7528\u4e2d\uff0c\u65e5\u671f\u6642\u9593\u904b\u7b97\u7b26\u53ef\u4ee5\u7528\u65bc\u591a\u7a2e\u5834\u666f\uff0c\u4f8b\u5982\uff1a<\/p>\n<ul>\n<li>\u8a08\u7b97\u8a02\u55ae\u7684\u4ea4\u4ed8\u6642\u9593\u3002<\/li>\n<li>\u5206\u6790\u7528\u6236\u7684\u6d3b\u8e8d\u6642\u9593\u6bb5\u3002<\/li>\n<li>\u751f\u6210\u5831\u544a\u6642\u7684\u6642\u9593\u7bc4\u570d\u904e\u6ffe\u3002<\/li>\n<\/ul>\n<p>\u4f8b\u5982\uff0c\u82e5\u8981\u67e5\u8a62\u904e\u53bb\u4e00\u5468\u5167\u7684\u6240\u6709\u8a02\u55ae\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u67e5\u8a62\uff1a<\/p>\n<pre><code>SELECT * FROM orders WHERE order_date &gt;= DATE_SUB(NOW(), INTERVAL 7 DAY);<\/code><\/pre>\n<h2 id=\"%e7%b8%bd%e7%b5%90-oSitYnlRdl\">\u7e3d\u7d50<\/h2>\n<p>OceanBase \u7684\u65e5\u671f\u6642\u9593\u904b\u7b97\u7b26\u70ba\u7528\u6236\u63d0\u4f9b\u4e86\u9748\u6d3b\u4e14\u5f37\u5927\u7684\u5de5\u5177\u4f86\u8655\u7406\u6642\u9593\u6578\u64da\u3002\u7121\u8ad6\u662f\u9032\u884c\u7c21\u55ae\u7684\u65e5\u671f\u52a0\u6e1b\uff0c\u9084\u662f\u4f7f\u7528\u5167\u5efa\u51fd\u6578\u9032\u884c\u8907\u96dc\u7684\u8a08\u7b97\uff0c\u9019\u4e9b\u904b\u7b97\u7b26\u90fd\u80fd\u6709\u6548\u5730\u6eff\u8db3\u7528\u6236\u7684\u9700\u6c42\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u6548\u6578\u64da\u8655\u7406\u7684\u61c9\u7528\u5834\u666f\uff0c\u9078\u64c7\u5408\u9069\u7684\u6578\u64da\u5eab\u89e3\u6c7a\u65b9\u6848\u81f3\u95dc\u91cd\u8981\u3002\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u7a69\u5b9a\u4e14\u9ad8\u6548\u7684 <a href=\"https:\/\/server.hk\">\u9999\u6e2f VPS<\/a> \u670d\u52d9\uff0cServer.HK \u63d0\u4f9b\u591a\u7a2e\u9078\u64c7\u4ee5\u6eff\u8db3\u60a8\u7684\u9700\u6c42\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22 OceanBase \u65e5\u671f\u6642\u9593\u904b\u7b97\u7b26\u7684\u4f7f\u7528\u65b9\u6cd5\uff0c\u5b78\u7fd2\u5982\u4f55\u6709\u6548\u8655\u7406\u548c\u64cd\u4f5c\u65e5\u671f\u6642\u9593\u6578\u64da\uff0c\u63d0\u5347\u6578\u64da\u5eab\u7ba1\u7406\u6280\u80fd\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-160553","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/160553","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=160553"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/160553\/revisions"}],"predecessor-version":[{"id":160554,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/160553\/revisions\/160554"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=160553"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=160553"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=160553"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}