{"id":93848,"date":"2024-10-19T17:25:16","date_gmt":"2024-10-19T09:25:16","guid":{"rendered":"https:\/\/server.hk\/cnblog\/93848\/"},"modified":"2024-10-19T17:25:17","modified_gmt":"2024-10-19T09:25:17","slug":"oracle-add_months%e5%87%bd%e6%95%b8%e7%9a%84%e7%94%a8%e6%b3%95%e8%a9%b3%e8%a7%a3","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/93848\/","title":{"rendered":"Oracle add_months\u51fd\u6578\u7684\u7528\u6cd5\u8a73\u89e3"},"content":{"rendered":"<h1 id=\"oracle-add_months%e5%87%bd%e6%95%b8%e7%9a%84%e7%94%a8%e6%b3%95%e8%a9%b3%e8%a7%a3-fziAVjQNYN\">Oracle add_months\u51fd\u6578\u7684\u7528\u6cd5\u8a73\u89e3<\/h1>\n<p>\u5728Oracle\u8cc7\u6599\u5eab\u4e2d\uff0c\u65e5\u671f\u548c\u6642\u9593\u7684\u8655\u7406\u662f\u975e\u5e38\u91cd\u8981\u7684\uff0c\u5c24\u5176\u662f\u5728\u9032\u884c\u6578\u64da\u5206\u6790\u548c\u5831\u544a\u6642\u3002<code>add_months<\/code>\u51fd\u6578\u662f\u4e00\u500b\u975e\u5e38\u5be6\u7528\u7684\u5de5\u5177\uff0c\u80fd\u5920\u5e6b\u52a9\u7528\u6236\u5728\u65e5\u671f\u4e0a\u9032\u884c\u6708\u4efd\u7684\u52a0\u6e1b\u64cd\u4f5c\u3002\u672c\u6587\u5c07\u8a73\u7d30\u4ecb\u7d39<code>add_months<\/code>\u51fd\u6578\u7684\u7528\u6cd5\u53ca\u5176\u61c9\u7528\u7bc4\u4f8b\u3002<\/p>\n<h2 id=\"add_months%e5%87%bd%e6%95%b8%e7%9a%84%e5%9f%ba%e6%9c%ac%e8%aa%9e%e6%b3%95-fziAVjQNYN\">add_months\u51fd\u6578\u7684\u57fa\u672c\u8a9e\u6cd5<\/h2>\n<p><code>add_months<\/code>\u51fd\u6578\u7684\u57fa\u672c\u8a9e\u6cd5\u5982\u4e0b\uff1a<\/p>\n<pre><code>add_months(date, n)<\/code><\/pre>\n<ul>\n<li><strong>date<\/strong>\uff1a\u8981\u9032\u884c\u64cd\u4f5c\u7684\u65e5\u671f\uff0c\u53ef\u4ee5\u662f\u65e5\u671f\u578b\u5225\u7684\u6b04\u4f4d\u6216\u662f\u5177\u9ad4\u7684\u65e5\u671f\u503c\u3002<\/li>\n<li><strong>n<\/strong>\uff1a\u8981\u52a0\u4e0a\u7684\u6708\u4efd\u6578\uff0c\u53ef\u4ee5\u662f\u6b63\u6578\uff08\u8868\u793a\u52a0\uff09\u6216\u8ca0\u6578\uff08\u8868\u793a\u6e1b\uff09\u3002<\/li>\n<\/ul>\n<h2 id=\"%e4%bd%bf%e7%94%a8%e7%af%84%e4%be%8b-fziAVjQNYN\">\u4f7f\u7528\u7bc4\u4f8b<\/h2>\n<p>\u4ee5\u4e0b\u662f\u4e00\u4e9b\u4f7f\u7528<code>add_months<\/code>\u51fd\u6578\u7684\u7bc4\u4f8b\uff1a<\/p>\n<h3 id=\"%e7%af%84%e4%be%8b1%ef%bc%9a%e5%8a%a0%e4%b8%8a%e5%b9%be%e5%80%8b%e6%9c%88-fziAVjQNYN\">\u7bc4\u4f8b1\uff1a\u52a0\u4e0a\u5e7e\u500b\u6708<\/h3>\n<p>\u5047\u8a2d\u6211\u5011\u6709\u4e00\u500b\u65e5\u671f\u70ba2023\u5e741\u670815\u65e5\uff0c\u60f3\u8981\u52a0\u4e0a3\u500b\u6708\uff0c\u53ef\u4ee5\u9019\u6a23\u5beb\uff1a<\/p>\n<pre><code>SELECT add_months(to_date('2023-01-15', 'YYYY-MM-DD'), 3) AS new_date FROM dual;<\/code><\/pre>\n<p>\u57f7\u884c\u5f8c\uff0c\u7d50\u679c\u5c07\u986f\u793a\u70ba2023\u5e744\u670815\u65e5\u3002<\/p>\n<h3 id=\"%e7%af%84%e4%be%8b2%ef%bc%9a%e6%b8%9b%e5%8e%bb%e5%b9%be%e5%80%8b%e6%9c%88-fziAVjQNYN\">\u7bc4\u4f8b2\uff1a\u6e1b\u53bb\u5e7e\u500b\u6708<\/h3>\n<p>\u5982\u679c\u6211\u5011\u60f3\u8981\u5f9e\u540c\u4e00\u500b\u65e5\u671f\u4e2d\u6e1b\u53bb2\u500b\u6708\uff0c\u53ef\u4ee5\u9019\u6a23\u5beb\uff1a<\/p>\n<pre><code>SELECT add_months(to_date('2023-01-15', 'YYYY-MM-DD'), -2) AS new_date FROM dual;<\/code><\/pre>\n<p>\u57f7\u884c\u5f8c\uff0c\u7d50\u679c\u5c07\u986f\u793a\u70ba2022\u5e7411\u670815\u65e5\u3002<\/p>\n<h3 id=\"%e7%af%84%e4%be%8b3%ef%bc%9a%e8%88%87%e5%85%b6%e4%bb%96%e6%97%a5%e6%9c%9f%e5%87%bd%e6%95%b8%e7%b5%90%e5%90%88%e4%bd%bf%e7%94%a8-fziAVjQNYN\">\u7bc4\u4f8b3\uff1a\u8207\u5176\u4ed6\u65e5\u671f\u51fd\u6578\u7d50\u5408\u4f7f\u7528<\/h3>\n<p><code>add_months<\/code>\u51fd\u6578\u4e5f\u53ef\u4ee5\u8207\u5176\u4ed6\u65e5\u671f\u51fd\u6578\u7d50\u5408\u4f7f\u7528\u3002\u4f8b\u5982\uff0c\u5047\u8a2d\u6211\u5011\u60f3\u8981\u7372\u53d6\u7576\u524d\u65e5\u671f\u7684\u4e09\u500b\u6708\u5f8c\u7684\u65e5\u671f\uff0c\u53ef\u4ee5\u9019\u6a23\u5beb\uff1a<\/p>\n<pre><code>SELECT add_months(sysdate, 3) AS future_date FROM dual;<\/code><\/pre>\n<p>\u9019\u5c07\u8fd4\u56de\u7576\u524d\u65e5\u671f\u52a0\u4e0a\u4e09\u500b\u6708\u7684\u7d50\u679c\u3002<\/p>\n<h2 id=\"%e6%b3%a8%e6%84%8f%e4%ba%8b%e9%a0%85-fziAVjQNYN\">\u6ce8\u610f\u4e8b\u9805<\/h2>\n<ul>\n<li>\u7576\u52a0\u4e0a\u6216\u6e1b\u53bb\u7684\u6708\u4efd\u6578\u4f7f\u5f97\u65e5\u671f\u8d85\u904e\u8a72\u6708\u7684\u5929\u6578\u6642\uff0cOracle\u6703\u81ea\u52d5\u8abf\u6574\u3002\u4f8b\u5982\uff0c\u5f9e2023\u5e741\u670831\u65e5\u52a0\u4e0a1\u500b\u6708\uff0c\u7d50\u679c\u5c07\u662f2023\u5e743\u67082\u65e5\uff0c\u800c\u4e0d\u662f2023\u5e743\u670831\u65e5\u3002<\/li>\n<li>\u5982\u679c<code>date<\/code>\u53c3\u6578\u70baNULL\uff0c\u5247<code>add_months<\/code>\u51fd\u6578\u7684\u8fd4\u56de\u503c\u4e5f\u5c07\u662fNULL\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b5%90%e8%ab%96-fziAVjQNYN\">\u7d50\u8ad6<\/h2>\n<p>Oracle\u7684<code>add_months<\/code>\u51fd\u6578\u662f\u4e00\u500b\u5f37\u5927\u7684\u5de5\u5177\uff0c\u80fd\u5920\u7c21\u5316\u65e5\u671f\u8a08\u7b97\u7684\u904e\u7a0b\u3002\u7121\u8ad6\u662f\u5728\u6578\u64da\u5206\u6790\u3001\u5831\u544a\u751f\u6210\u9084\u662f\u65e5\u5e38\u7684\u6578\u64da\u8655\u7406\u4e2d\uff0c\u638c\u63e1\u9019\u500b\u51fd\u6578\u7684\u7528\u6cd5\u90fd\u80fd\u63d0\u9ad8\u5de5\u4f5c\u6548\u7387\u3002\u5c0d\u65bc\u9700\u8981\u9032\u884c\u65e5\u671f\u8a08\u7b97\u7684\u958b\u767c\u8005\u548c\u6578\u64da\u5206\u6790\u5e2b\u4f86\u8aaa\uff0c<code>add_months<\/code>\u51fd\u6578\u7121\u7591\u662f\u4e00\u500b\u4e0d\u53ef\u6216\u7f3a\u7684\u5de5\u5177\u3002<\/p>\n<p>\u5982\u9700\u4e86\u89e3\u66f4\u591a\u6709\u95dc<code>VPS<\/code>\u3001<a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a>\u53ca\u5176\u4ed6\u4f3a\u670d\u5668\u89e3\u6c7a\u65b9\u6848\u7684\u4fe1\u606f\uff0c\u8acb\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6df1\u5165\u63a2\u8a0eOracle\u7684add_months\u51fd\u6578\uff0c\u4e86\u89e3\u5176\u7528\u6cd5\u3001\u8a9e\u6cd5\u53ca\u5be6\u969b\u61c9\u7528\u7bc4\u4f8b\uff0c\u52a9\u4f60\u8f15\u9b06\u8655\u7406\u65e5\u671f\u8a08\u7b97\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-93848","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/93848","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=93848"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/93848\/revisions"}],"predecessor-version":[{"id":93849,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/93848\/revisions\/93849"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=93848"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=93848"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=93848"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}