{"id":160057,"date":"2024-11-03T19:55:19","date_gmt":"2024-11-03T11:55:19","guid":{"rendered":"https:\/\/server.hk\/cnblog\/160057\/"},"modified":"2024-11-03T19:55:20","modified_gmt":"2024-11-03T11:55:20","slug":"oceanbase-%e6%95%99%e7%a8%8b%ef%bc%9aoceanbase-add_months","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/160057\/","title":{"rendered":"OceanBase \u6559\u7a0b\uff1aOceanBase ADD_MONTHS"},"content":{"rendered":"<h1 id=\"oceanbase-%e6%95%99%e7%a8%8b%ef%bc%9aoceanbase-add_months-hFIVRXmyDT\">OceanBase \u6559\u7a0b\uff1aOceanBase ADD_MONTHS<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u6578\u64da\u5eab\u7ba1\u7406\u7cfb\u7d71\u4e2d\uff0cOceanBase \u4f5c\u70ba\u4e00\u500b\u9ad8\u6027\u80fd\u7684\u5206\u4f48\u5f0f\u6578\u64da\u5eab\uff0c\u8d8a\u4f86\u8d8a\u53d7\u5230\u958b\u767c\u8005\u548c\u4f01\u696d\u7684\u9752\u775e\u3002\u5b83\u4e0d\u50c5\u652f\u6301\u9ad8\u4e26\u767c\u7684\u8b80\u5beb\u64cd\u4f5c\uff0c\u9084\u5177\u5099\u5f37\u5927\u7684\u6578\u64da\u8655\u7406\u80fd\u529b\u3002\u672c\u6587\u5c07\u91cd\u9ede\u4ecb\u7d39 OceanBase \u4e2d\u7684 <code>ADD_MONTHS<\/code> \u51fd\u6578\uff0c\u5e6b\u52a9\u8b80\u8005\u7406\u89e3\u5176\u7528\u6cd5\u53ca\u61c9\u7528\u5834\u666f\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%af-add_months-%e5%87%bd%e6%95%b8%ef%bc%9f-hFIVRXmyDT\">\u4ec0\u9ebc\u662f ADD_MONTHS \u51fd\u6578\uff1f<\/h2>\n<p><code>ADD_MONTHS<\/code> \u51fd\u6578\u662f\u4e00\u500b\u7528\u65bc\u65e5\u671f\u8a08\u7b97\u7684\u51fd\u6578\uff0c\u4e3b\u8981\u7528\u4f86\u5c07\u6307\u5b9a\u7684\u6708\u4efd\u6578\u52a0\u5230\u4e00\u500b\u65e5\u671f\u4e0a\u3002\u9019\u5728\u8655\u7406\u8207\u6642\u9593\u76f8\u95dc\u7684\u6578\u64da\u6642\u975e\u5e38\u6709\u7528\uff0c\u4f8b\u5982\u8a08\u7b97\u5230\u671f\u65e5\u3001\u8a02\u55ae\u8655\u7406\u6642\u9593\u7b49\u3002<\/p>\n<h2 id=\"add_months-%e5%87%bd%e6%95%b8%e7%9a%84%e8%aa%9e%e6%b3%95-hFIVRXmyDT\">ADD_MONTHS \u51fd\u6578\u7684\u8a9e\u6cd5<\/h2>\n<pre><code>ADD_MONTHS(date, months)<\/code><\/pre>\n<ul>\n<li><strong>date<\/strong>\uff1a\u8981\u9032\u884c\u8a08\u7b97\u7684\u65e5\u671f\uff0c\u53ef\u4ee5\u662f\u65e5\u671f\u985e\u578b\u6216\u5b57\u7b26\u4e32\u985e\u578b\u7684\u65e5\u671f\u3002<\/li>\n<li><strong>months<\/strong>\uff1a\u8981\u6dfb\u52a0\u7684\u6708\u4efd\u6578\uff0c\u53ef\u4ee5\u662f\u6b63\u6578\u6216\u8ca0\u6578\u3002\u6b63\u6578\u8868\u793a\u5411\u672a\u4f86\u6dfb\u52a0\u6708\u4efd\uff0c\u8ca0\u6578\u5247\u8868\u793a\u5411\u904e\u53bb\u6e1b\u5c11\u6708\u4efd\u3002<\/li>\n<\/ul>\n<h2 id=\"%e4%bd%bf%e7%94%a8%e7%af%84%e4%be%8b-hFIVRXmyDT\">\u4f7f\u7528\u7bc4\u4f8b<\/h2>\n<p>\u4ee5\u4e0b\u662f\u4e00\u4e9b\u4f7f\u7528 <code>ADD_MONTHS<\/code> \u51fd\u6578\u7684\u7bc4\u4f8b\uff0c\u5e6b\u52a9\u8b80\u8005\u66f4\u597d\u5730\u7406\u89e3\u5176\u7528\u6cd5\u3002<\/p>\n<h3 id=\"%e7%af%84%e4%be%8b-1%ef%bc%9a%e5%9f%ba%e6%9c%ac%e7%94%a8%e6%b3%95-hFIVRXmyDT\">\u7bc4\u4f8b 1\uff1a\u57fa\u672c\u7528\u6cd5<\/h3>\n<pre><code>SELECT ADD_MONTHS('2023-01-15', 3) AS new_date;<\/code><\/pre>\n<p>\u9019\u500b\u67e5\u8a62\u5c07\u8fd4\u56de <code>2023-04-15<\/code>\uff0c\u56e0\u70ba\u6211\u5011\u5c07\u4e09\u500b\u6708\u6dfb\u52a0\u5230 <code>2023-01-15<\/code>\u3002<\/p>\n<h3 id=\"%e7%af%84%e4%be%8b-2%ef%bc%9a%e4%bd%bf%e7%94%a8%e8%b2%a0%e6%95%b8-hFIVRXmyDT\">\u7bc4\u4f8b 2\uff1a\u4f7f\u7528\u8ca0\u6578<\/h3>\n<pre><code>SELECT ADD_MONTHS('2023-01-15', -2) AS new_date;<\/code><\/pre>\n<p>\u9019\u500b\u67e5\u8a62\u5c07\u8fd4\u56de <code>2022-11-15<\/code>\uff0c\u56e0\u70ba\u6211\u5011\u5f9e <code>2023-01-15<\/code> \u6e1b\u53bb\u5169\u500b\u6708\u3002<\/p>\n<h3 id=\"%e7%af%84%e4%be%8b-3%ef%bc%9a%e8%88%87%e5%85%b6%e4%bb%96%e5%87%bd%e6%95%b8%e7%b5%90%e5%90%88%e4%bd%bf%e7%94%a8-hFIVRXmyDT\">\u7bc4\u4f8b 3\uff1a\u8207\u5176\u4ed6\u51fd\u6578\u7d50\u5408\u4f7f\u7528<\/h3>\n<p>\u5728\u5be6\u969b\u61c9\u7528\u4e2d\uff0c<code>ADD_MONTHS<\/code> \u51fd\u6578\u5e38\u5e38\u8207\u5176\u4ed6\u65e5\u671f\u51fd\u6578\u7d50\u5408\u4f7f\u7528\u3002\u4f8b\u5982\uff0c\u8a08\u7b97\u67d0\u500b\u65e5\u671f\u7684\u4e0b\u500b\u5b63\u5ea6\u7684\u958b\u59cb\u65e5\u671f\uff1a<\/p>\n<pre><code>SELECT ADD_MONTHS(TRUNC(SYSDATE, 'Q'), 3) AS next_quarter_start;<\/code><\/pre>\n<p>\u9019\u500b\u67e5\u8a62\u5c07\u8fd4\u56de\u7576\u524d\u65e5\u671f\u6240\u5728\u5b63\u5ea6\u7684\u4e0b\u4e00\u500b\u5b63\u5ea6\u7684\u958b\u59cb\u65e5\u671f\u3002<\/p>\n<h2 id=\"%e6%b3%a8%e6%84%8f%e4%ba%8b%e9%a0%85-hFIVRXmyDT\">\u6ce8\u610f\u4e8b\u9805<\/h2>\n<ul>\n<li>\u7576\u6dfb\u52a0\u7684\u6708\u4efd\u6578\u5c0e\u81f4\u65e5\u671f\u8d85\u51fa\u8a72\u6708\u7684\u6700\u5927\u5929\u6578\u6642\uff0cOceanBase \u5c07\u81ea\u52d5\u8abf\u6574\u65e5\u671f\u3002\u4f8b\u5982\uff0c\u5c07 <code>2023-01-31<\/code> \u52a0\u4e0a <code>1<\/code> \u500b\u6708\u5c07\u8fd4\u56de <code>2023-02-28<\/code>\uff08\u6216 <code>2023-02-29<\/code>\uff0c\u5982\u679c\u662f\u958f\u5e74\uff09\u3002<\/li>\n<li>\u5982\u679c <code>date<\/code> \u53c3\u6578\u70ba <code>NULL<\/code>\uff0c\u5247\u8fd4\u56de\u503c\u4e5f\u5c07\u662f <code>NULL<\/code>\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-hFIVRXmyDT\">\u7e3d\u7d50<\/h2>\n<p>\u5728 OceanBase \u4e2d\uff0c<code>ADD_MONTHS<\/code> \u51fd\u6578\u662f\u4e00\u500b\u975e\u5e38\u5be6\u7528\u7684\u5de5\u5177\uff0c\u80fd\u5920\u5e6b\u52a9\u958b\u767c\u8005\u9032\u884c\u9748\u6d3b\u7684\u65e5\u671f\u8a08\u7b97\u3002\u7121\u8ad6\u662f\u5728\u8655\u7406\u696d\u52d9\u908f\u8f2f\u9084\u662f\u9032\u884c\u6578\u64da\u5206\u6790\u6642\uff0c\u638c\u63e1\u9019\u500b\u51fd\u6578\u7684\u7528\u6cd5\u90fd\u80fd\u63d0\u9ad8\u5de5\u4f5c\u6548\u7387\u3002\u82e5\u60a8\u5c0d\u65bc <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u670d\u52d9\u6709\u8208\u8da3\uff0cServer.HK \u63d0\u4f9b\u591a\u7a2e\u9748\u6d3b\u7684\u89e3\u6c7a\u65b9\u6848\uff0c\u6eff\u8db3\u60a8\u7684\u9700\u6c42\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Learn how to use the ADD_MONTHS function in OceanBase to manipulate date values effectively in your database queries.<\/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-160057","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/160057","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=160057"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/160057\/revisions"}],"predecessor-version":[{"id":160058,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/160057\/revisions\/160058"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=160057"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=160057"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=160057"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}