{"id":79404,"date":"2024-10-16T13:02:21","date_gmt":"2024-10-16T05:02:21","guid":{"rendered":"https:\/\/server.hk\/cnblog\/79404\/"},"modified":"2024-10-16T13:02:21","modified_gmt":"2024-10-16T05:02:21","slug":"mysql%e6%8c%87%e4%bb%a4-period_add%ef%bc%88%e5%91%a8%e6%9c%9f%e5%8a%a0%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/79404\/","title":{"rendered":"MySQL\u6307\u4ee4: PERIOD_ADD()\uff08\u5468\u671f\u52a0\uff09"},"content":{"rendered":"<h1 id=\"mysql%e6%8c%87%e4%bb%a4-period_add%ef%bc%88%e5%91%a8%e6%9c%9f%e5%8a%a0%ef%bc%89-aZXoQJnCKe\">MySQL\u6307\u4ee4: PERIOD_ADD()\uff08\u5468\u671f\u52a0\uff09<\/h1>\n<p>\u5728\u8cc7\u6599\u5eab\u7ba1\u7406\u7cfb\u7d71\u4e2d\uff0cMySQL\u662f\u4e00\u500b\u5ee3\u6cdb\u4f7f\u7528\u7684\u958b\u6e90\u95dc\u806f\u8cc7\u6599\u5eab\u7ba1\u7406\u7cfb\u7d71\u3002\u5b83\u63d0\u4f9b\u4e86\u591a\u7a2e\u529f\u80fd\u5f37\u5927\u7684\u6307\u4ee4\u4f86\u8655\u7406\u548c\u64cd\u4f5c\u8cc7\u6599\u3002\u5176\u4e2d\uff0c<code>PERIOD_ADD()<\/code>\u662f\u4e00\u500b\u975e\u5e38\u5be6\u7528\u7684\u51fd\u6578\uff0c\u4e3b\u8981\u7528\u65bc\u65e5\u671f\u548c\u6642\u9593\u7684\u8a08\u7b97\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0e<code>PERIOD_ADD()<\/code>\u7684\u7528\u6cd5\u53ca\u5176\u61c9\u7528\u5834\u666f\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%afperiod_add-aZXoQJnCKe\">\u4ec0\u9ebc\u662fPERIOD_ADD()?<\/h2>\n<p><code>PERIOD_ADD()<\/code>\u662f\u4e00\u500b\u7528\u65bc\u5c07\u6307\u5b9a\u7684\u6708\u4efd\u6578\u52a0\u5230\u4e00\u500b\u65e5\u671f\u7684\u51fd\u6578\u3002\u5b83\u7684\u57fa\u672c\u8a9e\u6cd5\u5982\u4e0b\uff1a<\/p>\n<pre><code>PERIOD_ADD(P, N)<\/code><\/pre>\n<p>\u5176\u4e2d\uff0c<code>P<\/code>\u662f\u4ee5YYYYMM\u683c\u5f0f\u8868\u793a\u7684\u65e5\u671f\uff0c<code>N<\/code>\u662f\u8981\u52a0\u4e0a\u7684\u6708\u4efd\u6578\u3002\u9019\u500b\u51fd\u6578\u6703\u8fd4\u56de\u4e00\u500b\u65b0\u7684\u65e5\u671f\uff0c\u8868\u793a\u5728\u539f\u59cb\u65e5\u671f\u7684\u57fa\u790e\u4e0a\u589e\u52a0\u4e86\u6307\u5b9a\u7684\u6708\u4efd\u3002<\/p>\n<h2 id=\"period_add%e7%9a%84%e4%bd%bf%e7%94%a8%e7%af%84%e4%be%8b-aZXoQJnCKe\">PERIOD_ADD()\u7684\u4f7f\u7528\u7bc4\u4f8b<\/h2>\n<p>\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684\u7bc4\u4f8b\uff0c\u5c55\u793a\u5982\u4f55\u4f7f\u7528<code>PERIOD_ADD()<\/code>\u4f86\u8a08\u7b97\u65e5\u671f\uff1a<\/p>\n<pre><code>SELECT PERIOD_ADD(202310, 3) AS NewPeriod;<\/code><\/pre>\n<p>\u5728\u9019\u500b\u4f8b\u5b50\u4e2d\uff0c\u6211\u5011\u5c072023\u5e7410\u6708\uff08\u5373202310\uff09\u52a0\u4e0a3\u500b\u6708\uff0c\u7d50\u679c\u5c07\u8fd4\u56de2024\u5e741\u6708\uff08\u5373202401\uff09\u3002<\/p>\n<h3 id=\"%e5%af%a6%e9%9a%9b%e6%87%89%e7%94%a8%e5%a0%b4%e6%99%af-aZXoQJnCKe\">\u5be6\u969b\u61c9\u7528\u5834\u666f<\/h3>\n<p><code>PERIOD_ADD()<\/code>\u51fd\u6578\u5728\u8a31\u591a\u5be6\u969b\u61c9\u7528\u4e2d\u90fd\u975e\u5e38\u6709\u7528\uff0c\u7279\u5225\u662f\u5728\u9700\u8981\u8a08\u7b97\u5230\u671f\u65e5\u6216\u5b9a\u671f\u4ed8\u6b3e\u7684\u60c5\u6cc1\u4e0b\u3002\u4f8b\u5982\uff0c\u5047\u8a2d\u4e00\u500b\u8a02\u95b1\u670d\u52d9\u6bcf\u4e09\u500b\u6708\u6536\u8cbb\u4e00\u6b21\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528\u6b64\u51fd\u6578\u4f86\u8a08\u7b97\u4e0b\u4e00\u6b21\u7684\u6536\u8cbb\u65e5\u671f\u3002<\/p>\n<pre><code>SELECT PERIOD_ADD(202310, 3) AS NextBillingDate;<\/code><\/pre>\n<p>\u9019\u6a23\u53ef\u4ee5\u8f15\u9b06\u5730\u7372\u5f97\u4e0b\u4e00\u6b21\u6536\u8cbb\u7684\u65e5\u671f\uff0c\u5f9e\u800c\u5e6b\u52a9\u4f01\u696d\u66f4\u597d\u5730\u7ba1\u7406\u5176\u8ca1\u52d9\u6d41\u7a0b\u3002<\/p>\n<h2 id=\"%e6%b3%a8%e6%84%8f%e4%ba%8b%e9%a0%85-aZXoQJnCKe\">\u6ce8\u610f\u4e8b\u9805<\/h2>\n<p>\u5728\u4f7f\u7528<code>PERIOD_ADD()<\/code>\u6642\uff0c\u6709\u5e7e\u9ede\u9700\u8981\u6ce8\u610f\uff1a<\/p>\n<ul>\n<li>\u8f38\u5165\u7684\u65e5\u671f\u5fc5\u9808\u662f\u6709\u6548\u7684YYYYMM\u683c\u5f0f\uff0c\u5426\u5247\u51fd\u6578\u5c07\u8fd4\u56de\u932f\u8aa4\u3002<\/li>\n<li>\u5982\u679c\u52a0\u4e0a\u7684\u6708\u4efd\u6578\u70ba\u8ca0\u6578\uff0c\u5247\u51fd\u6578\u5c07\u8fd4\u56de\u6e1b\u53bb\u76f8\u61c9\u6708\u4efd\u7684\u65e5\u671f\u3002<\/li>\n<li>\u6b64\u51fd\u6578\u50c5\u9069\u7528\u65bc\u6708\u4efd\u7684\u8a08\u7b97\uff0c\u5c0d\u65bc\u65e5\u6216\u5e74\u7b49\u5176\u4ed6\u6642\u9593\u55ae\u4f4d\u7684\u8a08\u7b97\uff0c\u5247\u9700\u8981\u4f7f\u7528\u5176\u4ed6\u51fd\u6578\uff0c\u5982<code>DATE_ADD()<\/code>\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b5%90%e8%ab%96-aZXoQJnCKe\">\u7d50\u8ad6<\/h2>\n<p>\u7e3d\u7d50\u4f86\u8aaa\uff0c<code>PERIOD_ADD()<\/code>\u662f\u4e00\u500b\u975e\u5e38\u5be6\u7528\u7684MySQL\u51fd\u6578\uff0c\u80fd\u5920\u5e6b\u52a9\u7528\u6236\u8f15\u9b06\u5730\u9032\u884c\u65e5\u671f\u7684\u8a08\u7b97\u3002\u7121\u8ad6\u662f\u5728\u8ca1\u52d9\u7ba1\u7406\u3001\u8a02\u95b1\u670d\u52d9\u9084\u662f\u5176\u4ed6\u9700\u8981\u65e5\u671f\u8a08\u7b97\u7684\u5834\u666f\u4e2d\uff0c\u9019\u500b\u51fd\u6578\u90fd\u80fd\u63d0\u4f9b\u6709\u6548\u7684\u89e3\u6c7a\u65b9\u6848\u3002\u5c0d\u65bc\u9700\u8981\u9032\u884c\u8907\u96dc\u6578\u64da\u8655\u7406\u7684\u958b\u767c\u8005\u4f86\u8aaa\uff0c\u638c\u63e1\u9019\u4e9b\u51fd\u6578\u5c07\u5927\u5927\u63d0\u9ad8\u5de5\u4f5c\u6548\u7387\u3002<\/p>\n<p>\u5982\u679c\u60a8\u5c0d\u65bc<code>PERIOD_ADD()<\/code>\u6216\u5176\u4ed6MySQL\u6307\u4ee4\u6709\u9032\u4e00\u6b65\u7684\u8208\u8da3\uff0c\u5efa\u8b70\u60a8\u6df1\u5165\u5b78\u7fd2MySQL\u7684\u5b98\u65b9\u6587\u6a94\uff0c\u6216\u8003\u616e\u4f7f\u7528<code><a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a><\/code>\u4f86\u642d\u5efa\u60a8\u7684\u958b\u767c\u74b0\u5883\uff0c\u9032\u884c\u66f4\u6df1\u5165\u7684\u5be6\u9a57\u548c\u5b78\u7fd2\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e86\u89e3MySQL\u6307\u4ee4PERIOD_ADD()\uff0c\u7528\u4e8e\u5728\u65e5\u671f\u5468\u671f\u4e0a\u6dfb\u52a0\u6307\u5b9a\u7684\u6708\u4efd\uff0c\u7b80\u5316\u65e5\u671f\u8ba1\u7b97\u4e0e\u7ba1\u7406\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-79404","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/79404","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=79404"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/79404\/revisions"}],"predecessor-version":[{"id":79405,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/79404\/revisions\/79405"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=79404"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=79404"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=79404"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}