{"id":3614,"date":"2022-09-25T16:23:18","date_gmt":"2022-09-25T07:23:18","guid":{"rendered":"https:\/\/taitan916.info\/blog\/?p=3614"},"modified":"2022-10-04T16:09:24","modified_gmt":"2022-10-04T07:09:24","slug":"post-3614","status":"publish","type":"post","link":"https:\/\/taitan916.info\/blog\/archives\/3614","title":{"rendered":"MySQL\u3067datetime\u578b\u30c7\u30fc\u30bf\u306e\u3007\u65e5\u5f8c\u3092\u53d6\u5f97\u3059\u308b\u65b9\u6cd5(DATEDIFF)"},"content":{"rendered":"<p>MySQL\u3067datetime\u578b\u30c7\u30fc\u30bf\u304c\u3042\u308a\u3001\u4f55\u65e5\u7d4c\u904e\u3057\u3066\u3044\u308b\u304b\u3092\u53d6\u5f97\u3057\u3001\u3007\u65e5\u7d4c\u904e\u3057\u3066\u3044\u305f\u5834\u5408\u306f\u4f55\u3089\u304b\u306e\u51e6\u7406\u3092\u884c\u3044\u305f\u3044\u3002\u307e\u305f\u3007\u65e5\u90e8\u5206\u306f\u56fa\u5b9a\u3067\u306f\u306a\u304f\u5909\u52d5\u3059\u308b\u3053\u3068\u304c\u3042\u308b\u3002\u5177\u4f53\u4f8b\u3068\u3057\u3066\u30c7\u30fc\u30bf\u767b\u93327\u65e5\u5f8c\u306b\u30d5\u30e9\u30b0\u3092\u5909\u66f4\u3059\u308b\u3001\u3068\u3044\u3046\u3088\u3046\u306a\u51e6\u7406\u3092\u884c\u3044\u305f\u3044\u3002\u4ee5\u4e0b\u306b\u5bfe\u5fdc\u65b9\u6cd5\u3092\u30e1\u30e2\u3002<\/p>\n<p>&nbsp;<\/p>\n<h2>DATEDIFF\u95a2\u6570\u3092\u4f7f\u3046<\/h2>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\">mysql&gt; SELECT DATEDIFF('2007-12-31 23:59:59','2007-12-30');\r\n        -&gt; 1\r\nmysql&gt; SELECT DATEDIFF('2010-11-30 23:59:59','2010-12-31');\r\n        -&gt; -31<\/pre>\n<p>\u6ce8\u610f\u70b9\u3068\u3057\u3066\u65e5\u4ed8\u90e8\u5206\u306e\u307f\u8a08\u7b97\u3055\u308c\u3001\u6642\u9593\u90e8\u5206\u306f\u8a08\u7b97\u3055\u308c\u306a\u3044\u3002\u4f8b\u3048\u3070\u73fe\u5728\u300c2022-09-25 12:00:00\u300d\u3060\u3063\u305f\u3068\u3057\u305f\u5834\u5408\u300c2022-09-24\u00a0 00:00:00\u300d\u300c2022-09-24\u00a0 23:59:59\u300d\u3069\u3061\u3089\u30821\u65e5\u5f8c\u3068\u3057\u3066\u8a08\u7b97\u3055\u308c\u308b\u3002\u53b3\u5bc6\u306b24\u6642\u9593\u7d4c\u904e\u3057\u305f\u3082\u306e\u30921\u65e5\u3068\u3057\u3066\u30ab\u30a6\u30f3\u30c8\u3059\u308b\u8a33\u3067\u306f\u306a\u3044\u70b9\u306b\u6ce8\u610f\u3002\u305d\u306e\u4ed6\u8a73\u7d30\u306f<a href=\"https:\/\/dev.mysql.com\/doc\/refman\/5.6\/ja\/date-and-time-functions.html#function_datediff\" target=\"_blank\" rel=\"noopener\">\u30ea\u30d5\u30a1\u30ec\u30f3\u30b9\u30da\u30fc\u30b8<\/a>\u3092\u53c2\u8003\u3002<\/p>\n<p>&nbsp;<\/p>\n<h2>\u5177\u4f53\u4f8b\u306e\u30bd\u30fc\u30b9\u30b3\u30fc\u30c9<\/h2>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\">SELECT *, DATEDIFF( CURRENT_DATE(), regist_date ) AS target_date \r\nFROM test_table\r\nWHERE DATEDIFF( CURRENT_DATE(), regist_date ) &gt;= 7<\/pre>\n<p>\u4e0a\u8a18\u306fregist_date\u304c7\u65e5\u7d4c\u904e\u3057\u305f\u30c7\u30fc\u30bf\u3092\u62bd\u51fa\u3059\u308bSQL\u6587\u306b\u306a\u308b\u3002\u3042\u3068\u306fCRON\u3067\u9069\u5b9c\u5b9f\u884c\u3057\u3066\u305d\u306e\u5f8c\u306e\u51e6\u7406\u3092\u884c\u3046\u3002<\/p>\n<p>&nbsp;<\/p>\n<h2>\u6240\u611f<\/h2>\n<p>\u4eca\u307e\u3067\u3007\u65e5\u5f8c\u90e8\u5206\u306f\u56fa\u5b9a\u3068\u3044\u3046\u30b1\u30fc\u30b9\u306e\u307f\u3060\u3063\u305f\u306e\u3067\u30c7\u30fc\u30bf\u767b\u9332\u306e\u969b\u306b\u3007\u65e5\u5f8c\u306e\u65e5\u6642\u3092\u767b\u9332\u3057\u3066\u304a\u304d\u3001\u6bce\u65e5CRON\u3067\u30c1\u30a7\u30c3\u30af\u3059\u308b\u3088\u3046\u306a\u5f62\u3092\u53d6\u3063\u3066\u3044\u305f\u3002\u4eca\u56de\u306f\u5909\u52d5\u3059\u308b\u3068\u3044\u3046\u30b1\u30fc\u30b9\u3060\u3063\u305f\u306e\u3067PHP\u30fbMySQL\u306e\u3069\u3063\u3061\u3067\u51e6\u7406\u3059\u308c\u3070\u3088\u3044\u306e\u304b\u8ff7\u3063\u305f\u3002MySQL\u3067\u7c21\u6f54\u306b\u5bfe\u5fdc\u3067\u304d\u3066\u3044\u308b\u306e\u3067\u5408\u3063\u3066\u308b\u3068\u601d\u3044\u305f\u3044\u3068\u3053\u308d\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>MySQL\u3067datetime\u578b\u30c7\u30fc\u30bf\u304c\u3042\u308a\u3001\u4f55\u65e5\u7d4c\u904e\u3057\u3066\u3044\u308b\u304b\u3092\u53d6\u5f97\u3057\u3001\u3007\u65e5\u7d4c\u904e ... <\/p>\n","protected":false},"author":1,"featured_media":1072,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[5,66],"tags":[],"class_list":["post-3614","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-mysql","category-database"],"acf":[],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/taitan916.info\/blog\/wp-json\/wp\/v2\/posts\/3614","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/taitan916.info\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/taitan916.info\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/taitan916.info\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/taitan916.info\/blog\/wp-json\/wp\/v2\/comments?post=3614"}],"version-history":[{"count":0,"href":"https:\/\/taitan916.info\/blog\/wp-json\/wp\/v2\/posts\/3614\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/taitan916.info\/blog\/wp-json\/wp\/v2\/media\/1072"}],"wp:attachment":[{"href":"https:\/\/taitan916.info\/blog\/wp-json\/wp\/v2\/media?parent=3614"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/taitan916.info\/blog\/wp-json\/wp\/v2\/categories?post=3614"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/taitan916.info\/blog\/wp-json\/wp\/v2\/tags?post=3614"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}