{"id":160551,"date":"2024-11-03T23:02:23","date_gmt":"2024-11-03T15:02:23","guid":{"rendered":"https:\/\/server.hk\/cnblog\/160551\/"},"modified":"2024-11-03T23:02:24","modified_gmt":"2024-11-03T15:02:24","slug":"oceanbase-%e6%95%99%e7%a8%8b%ef%bc%9aoceanbase-%e6%97%a5%e6%9c%9f%e6%99%82%e9%96%93%e8%88%87%e9%96%93%e9%9a%94%e6%95%b8%e6%93%9a%e9%a1%9e%e5%9e%8b%e6%a6%82%e8%bf%b0","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/160551\/","title":{"rendered":"OceanBase \u6559\u7a0b\uff1aOceanBase \u65e5\u671f\u6642\u9593\u8207\u9593\u9694\u6578\u64da\u985e\u578b\u6982\u8ff0"},"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%e8%88%87%e9%96%93%e9%9a%94%e6%95%b8%e6%93%9a%e9%a1%9e%e5%9e%8b%e6%a6%82%e8%bf%b0-lsdaFILVvv\">OceanBase \u6559\u7a0b\uff1aOceanBase \u65e5\u671f\u6642\u9593\u8207\u9593\u9694\u6578\u64da\u985e\u578b\u6982\u8ff0<\/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\u81f3\u95dc\u91cd\u8981\u7684\u3002OceanBase \u4f5c\u70ba\u4e00\u500b\u9ad8\u6027\u80fd\u7684\u5206\u4f48\u5f0f\u6578\u64da\u5eab\uff0c\u63d0\u4f9b\u4e86\u591a\u7a2e\u6578\u64da\u985e\u578b\u4f86\u8655\u7406\u65e5\u671f\u548c\u6642\u9593\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0e OceanBase \u4e2d\u7684\u65e5\u671f\u6642\u9593\u8207\u9593\u9694\u6578\u64da\u985e\u578b\uff0c\u5e6b\u52a9\u958b\u767c\u8005\u66f4\u597d\u5730\u7406\u89e3\u548c\u4f7f\u7528\u9019\u4e9b\u529f\u80fd\u3002<\/p>\n<h2 id=\"1-oceanbase-%e6%97%a5%e6%9c%9f%e6%99%82%e9%96%93%e6%95%b8%e6%93%9a%e9%a1%9e%e5%9e%8b-lsdaFILVvv\">1. OceanBase \u65e5\u671f\u6642\u9593\u6578\u64da\u985e\u578b<\/h2>\n<p>OceanBase \u652f\u6301\u591a\u7a2e\u65e5\u671f\u6642\u9593\u6578\u64da\u985e\u578b\uff0c\u4e3b\u8981\u5305\u62ec\uff1a<\/p>\n<ul>\n<li><strong>DATE<\/strong>\uff1a\u7528\u65bc\u5b58\u5132\u65e5\u671f\uff0c\u683c\u5f0f\u70ba &#8216;YYYY-MM-DD&#8217;\u3002<\/li>\n<li><strong>DATETIME<\/strong>\uff1a\u7528\u65bc\u5b58\u5132\u65e5\u671f\u548c\u6642\u9593\uff0c\u683c\u5f0f\u70ba &#8216;YYYY-MM-DD HH:MM:SS&#8217;\u3002<\/li>\n<li><strong>TIMESTAMP<\/strong>\uff1a\u985e\u4f3c\u65bc DATETIME\uff0c\u4f46\u6703\u6839\u64da\u6642\u5340\u9032\u884c\u8f49\u63db\uff0c\u683c\u5f0f\u70ba &#8216;YYYY-MM-DD HH:MM:SS&#8217;\u3002<\/li>\n<li><strong>TIME<\/strong>\uff1a\u7528\u65bc\u5b58\u5132\u6642\u9593\uff0c\u683c\u5f0f\u70ba &#8216;HH:MM:SS&#8217;\u3002<\/li>\n<\/ul>\n<h3 id=\"1-1-date-%e6%95%b8%e6%93%9a%e9%a1%9e%e5%9e%8b-lsdaFILVvv\">1.1 DATE \u6578\u64da\u985e\u578b<\/h3>\n<p>DATE \u6578\u64da\u985e\u578b\u7528\u65bc\u8868\u793a\u65e5\u671f\uff0c\u7bc4\u570d\u5f9e &#8216;1000-01-01&#8217; \u5230 &#8216;9999-12-31&#8217;\u3002\u5728 OceanBase \u4e2d\uff0c\u4f7f\u7528 DATE \u985e\u578b\u53ef\u4ee5\u65b9\u4fbf\u5730\u9032\u884c\u65e5\u671f\u7684\u6bd4\u8f03\u548c\u8a08\u7b97\u3002<\/p>\n<pre><code>SELECT * FROM events WHERE event_date &gt; '2023-01-01';<\/code><\/pre>\n<h3 id=\"1-2-datetime-%e6%95%b8%e6%93%9a%e9%a1%9e%e5%9e%8b-lsdaFILVvv\">1.2 DATETIME \u6578\u64da\u985e\u578b<\/h3>\n<p>DATETIME \u6578\u64da\u985e\u578b\u4e0d\u50c5\u53ef\u4ee5\u5b58\u5132\u65e5\u671f\uff0c\u9084\u53ef\u4ee5\u5b58\u5132\u5177\u9ad4\u7684\u6642\u9593\u3002\u9019\u4f7f\u5f97\u5b83\u5728\u9700\u8981\u7cbe\u78ba\u6642\u9593\u6233\u7684\u61c9\u7528\u4e2d\u975e\u5e38\u6709\u7528\u3002<\/p>\n<pre><code>SELECT * FROM logs WHERE log_time &gt; '2023-01-01 10:00:00';<\/code><\/pre>\n<h3 id=\"1-3-timestamp-%e6%95%b8%e6%93%9a%e9%a1%9e%e5%9e%8b-lsdaFILVvv\">1.3 TIMESTAMP \u6578\u64da\u985e\u578b<\/h3>\n<p>TIMESTAMP \u6578\u64da\u985e\u578b\u7684\u7279\u9ede\u5728\u65bc\u5b83\u6703\u6839\u64da\u7cfb\u7d71\u7684\u6642\u5340\u81ea\u52d5\u8f49\u63db\u3002\u9019\u5c0d\u65bc\u9700\u8981\u8de8\u6642\u5340\u7684\u61c9\u7528\u4f86\u8aaa\u975e\u5e38\u91cd\u8981\u3002<\/p>\n<pre><code>SELECT * FROM transactions WHERE transaction_time &gt; NOW() - INTERVAL 1 DAY;<\/code><\/pre>\n<h3 id=\"1-4-time-%e6%95%b8%e6%93%9a%e9%a1%9e%e5%9e%8b-lsdaFILVvv\">1.4 TIME \u6578\u64da\u985e\u578b<\/h3>\n<p>TIME \u6578\u64da\u985e\u578b\u5c08\u9580\u7528\u65bc\u5b58\u5132\u6642\u9593\uff0c\u7bc4\u570d\u5f9e &#8216;-838:59:59&#8217; \u5230 &#8216;838:59:59&#8217;\u3002\u9019\u5728\u8a08\u7b97\u6301\u7e8c\u6642\u9593\u6642\u975e\u5e38\u6709\u7528\u3002<\/p>\n<pre><code>SELECT * FROM schedules WHERE duration &gt; '02:00:00';<\/code><\/pre>\n<h2 id=\"2-oceanbase-%e9%96%93%e9%9a%94%e6%95%b8%e6%93%9a%e9%a1%9e%e5%9e%8b-lsdaFILVvv\">2. OceanBase \u9593\u9694\u6578\u64da\u985e\u578b<\/h2>\n<p>\u9664\u4e86\u65e5\u671f\u548c\u6642\u9593\u6578\u64da\u985e\u578b\uff0cOceanBase \u9084\u652f\u6301\u9593\u9694\u6578\u64da\u985e\u578b\uff0c\u9019\u4f7f\u5f97\u6642\u9593\u7684\u8a08\u7b97\u66f4\u52a0\u9748\u6d3b\u3002\u9593\u9694\u6578\u64da\u985e\u578b\u4e3b\u8981\u7528\u65bc\u8868\u793a\u6642\u9593\u7684\u589e\u91cf\u6216\u5dee\u7570\u3002<\/p>\n<ul>\n<li><strong>INTERVAL<\/strong>\uff1a\u7528\u65bc\u8868\u793a\u6642\u9593\u7684\u9593\u9694\uff0c\u53ef\u4ee5\u662f\u5929\u3001\u6708\u3001\u5e74\u7b49\u3002<\/li>\n<\/ul>\n<h3 id=\"2-1-%e4%bd%bf%e7%94%a8-interval-lsdaFILVvv\">2.1 \u4f7f\u7528 INTERVAL<\/h3>\n<p>\u4f7f\u7528 INTERVAL \u53ef\u4ee5\u65b9\u4fbf\u5730\u9032\u884c\u65e5\u671f\u548c\u6642\u9593\u7684\u52a0\u6e1b\u904b\u7b97\u3002\u4f8b\u5982\uff0c\u82e5\u8981\u67e5\u8a62\u904e\u53bb\u4e00\u5468\u7684\u6578\u64da\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u67e5\u8a62\uff1a<\/p>\n<pre><code>SELECT * FROM orders WHERE order_date &gt; NOW() - INTERVAL 7 DAY;<\/code><\/pre>\n<h2 id=\"3-%e5%af%a6%e9%9a%9b%e6%87%89%e7%94%a8%e7%a4%ba%e4%be%8b-lsdaFILVvv\">3. \u5be6\u969b\u61c9\u7528\u793a\u4f8b<\/h2>\n<p>\u5728\u5be6\u969b\u958b\u767c\u4e2d\uff0c\u6b63\u78ba\u4f7f\u7528\u65e5\u671f\u6642\u9593\u548c\u9593\u9694\u6578\u64da\u985e\u578b\u53ef\u4ee5\u63d0\u9ad8\u6578\u64da\u8655\u7406\u7684\u6548\u7387\u3002\u4f8b\u5982\uff0c\u5728\u4e00\u500b\u96fb\u5546\u5e73\u53f0\u4e2d\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u5229\u7528\u9019\u4e9b\u6578\u64da\u985e\u578b\u4f86\u5206\u6790\u92b7\u552e\u8da8\u52e2\u3001\u7528\u6236\u884c\u70ba\u7b49\u3002<\/p>\n<pre><code>SELECT COUNT(*) FROM sales WHERE sale_date BETWEEN '2023-01-01' AND '2023-01-31';<\/code><\/pre>\n<h2 id=\"%e7%b8%bd%e7%b5%90-lsdaFILVvv\">\u7e3d\u7d50<\/h2>\n<p>OceanBase \u63d0\u4f9b\u4e86\u5f37\u5927\u7684\u65e5\u671f\u6642\u9593\u8207\u9593\u9694\u6578\u64da\u985e\u578b\uff0c\u9019\u4e9b\u529f\u80fd\u4f7f\u5f97\u958b\u767c\u8005\u80fd\u5920\u9748\u6d3b\u5730\u8655\u7406\u5404\u7a2e\u6642\u9593\u76f8\u95dc\u7684\u6578\u64da\u3002\u7121\u8ad6\u662f\u5728\u6578\u64da\u67e5\u8a62\u9084\u662f\u6578\u64da\u5206\u6790\u4e2d\uff0c\u6b63\u78ba\u4f7f\u7528\u9019\u4e9b\u6578\u64da\u985e\u578b\u90fd\u80fd\u986f\u8457\u63d0\u9ad8\u6548\u7387\u3002\u82e5\u60a8\u5c0d\u65bc\u5982\u4f55\u5728\u60a8\u7684\u61c9\u7528\u4e2d\u4f7f\u7528 OceanBase \u7684\u65e5\u671f\u6642\u9593\u529f\u80fd\u6709\u9032\u4e00\u6b65\u7684\u9700\u6c42\uff0c\u6b61\u8fce\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u4e86\u89e3\u66f4\u591a\u8cc7\u8a0a\uff0c\u63a2\u7d22\u6211\u5011\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u89e3\u6c7a\u65b9\u6848\uff0c\u52a9\u60a8\u5728\u6578\u64da\u7ba1\u7406\u4e0a\u66f4\u4e0a\u4e00\u5c64\u6a13\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e86\u89e3 OceanBase \u4e2d\u7684\u65e5\u671f\u6642\u9593\u8207\u9593\u9694\u6578\u64da\u985e\u578b\uff0c\u638c\u63e1\u5176\u7279\u6027\u8207\u7528\u6cd5\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-160551","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/160551","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=160551"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/160551\/revisions"}],"predecessor-version":[{"id":160552,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/160551\/revisions\/160552"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=160551"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=160551"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=160551"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}