{"id":6936,"date":"2026-02-08T13:54:37","date_gmt":"2026-02-08T04:54:37","guid":{"rendered":"https:\/\/taitan916.info\/blog\/?p=6936"},"modified":"2025-06-08T14:06:19","modified_gmt":"2025-06-08T05:06:19","slug":"post-6936","status":"publish","type":"post","link":"https:\/\/taitan916.info\/blog\/archives\/6936","title":{"rendered":"MySQL\u3067datetime\u578b\u306e\u30ab\u30e9\u30e0\u3092date\u578b\u3084time\u578b\u306b\u5909\u63db\u3057\u3066\u691c\u7d22\u3059\u308b\u65b9\u6cd5"},"content":{"rendered":"<p>MySQL\u3067datetime\u578b\u306e\u30ab\u30e9\u30e0\u304c\u3042\u308a\u3001\u305d\u3061\u3089\u3092date\u578b\u3084time\u578b\u306b\u5909\u63db\u3057\u3066\u691c\u7d22\u3057\u305f\u3044\u3002\u5177\u4f53\u7684\u306b\u306f\u300c\u958b\u59cb\u65e5\u6642\u300d\u300c\u7d42\u4e86\u65e5\u6642\u300d\u306edatetime\u578b\u30ab\u30e9\u30e0\u304c\u3042\u308a\u3001\u958b\u59cb\u65e5\u306e\u307f(date\u578b\u3067)\u306e\u691c\u7d22\u3068\u958b\u59cb\uff5e\u7d42\u4e86\u6642\u9593(time\u578b)\u306e\u691c\u7d22\u3068\u3044\u30462\u30d1\u30bf\u30fc\u30f3\u3092\u884c\u3044\u305f\u3044\u3002\u4ee5\u4e0b\u306b\u5bfe\u5fdc\u65b9\u6cd5\u3092\u30e1\u30e2\u3002<\/p>\n<p>&nbsp;<\/p>\n<h2><span id=\"i\"><span id=\"i-2\">\u30c6\u30fc\u30d6\u30eb\u69cb\u9020<\/span><\/span><\/h2>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\">mysql&gt; SHOW COLUMNS FROM `test_table`;\r\n+-------+----------+------+-----+---------+----------------+\r\n| Field | Type     | Null | Key | Default | Extra          |\r\n+-------+----------+------+-----+---------+----------------+\r\n| id    | int      | NO   | PRI | NULL    | auto_increment |\r\n| start | datetime | NO   |     | NULL    |                |\r\n| end   | datetime | NO   |     | NULL    |                |\r\n+-------+----------+------+-----+---------+----------------+<\/pre>\n<p>&nbsp;<\/p>\n<h2><span id=\"i-2\"><span id=\"i-3\">\u30c7\u30fc\u30bf\u5185\u5bb9<\/span><\/span><\/h2>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\">mysql&gt; TABLE `test_table`;\r\n+----+---------------------+---------------------+\r\n| id | start               | end                 |\r\n+----+---------------------+---------------------+\r\n|  1 | 2025-05-01 15:00:00 | 2025-05-01 18:00:00 |\r\n|  2 | 2025-12-01 00:00:00 | 2025-12-01 05:00:00 |\r\n|  3 | 2025-01-01 01:00:00 | 2025-01-01 02:30:00 |\r\n+----+---------------------+---------------------+<\/pre>\n<p>&nbsp;<\/p>\n<h2><span id=\"i-3\">\u5bfe\u5fdc\u65b9\u6cd5<\/span><\/h2>\n<h3><span id=\"SQL\">date\u578b\u306b\u5909\u63db\u3057\u3066\u691c\u7d22<\/span><\/h3>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\">SELECT * \r\nFROM `test_table` \r\nWHERE CAST( `start` AS DATE ) = '2025-05-01';<\/pre>\n<h4>\u51fa\u529b\u4f8b<\/h4>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\">+----+---------------------+---------------------+\r\n| id | start               | end                 |\r\n+----+---------------------+---------------------+\r\n|  1 | 2025-05-01 15:00:00 | 2025-05-01 18:00:00 |\r\n+----+---------------------+---------------------+<\/pre>\n<h3>time\u578b\u306b\u5909\u63db\u3057\u3066\u691c\u7d22<\/h3>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\">SELECT * \r\nFROM `test_table` \r\nWHERE CAST( `start` AS TIME ) &gt;= '00:00:00'\r\nAND CAST( `end` AS TIME ) &lt;= '03:00:00';\r\n<\/pre>\n<h4>\u51fa\u529b\u4f8b<\/h4>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\">+----+---------------------+---------------------+\r\n| id | start               | end                 |\r\n+----+---------------------+---------------------+\r\n|  3 | 2025-01-01 01:00:00 | 2025-01-01 02:30:00 |\r\n+----+---------------------+---------------------+<\/pre>\n<h3>\u4f75\u7528\u3082\u53ef\u80fd<\/h3>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\">SELECT * \r\nFROM `test_table` \r\nWHERE CAST( `start` AS DATE ) = '2025-05-01'\r\nAND CAST( `start` AS TIME ) &gt;= '00:00:00';<\/pre>\n<h4>\u51fa\u529b\u4f8b<\/h4>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\">+----+---------------------+---------------------+\r\n| id | start               | end                 |\r\n+----+---------------------+---------------------+\r\n|  1 | 2025-05-01 15:00:00 | 2025-05-01 18:00:00 |\r\n+----+---------------------+---------------------+<\/pre>\n<p>&nbsp;<\/p>\n<h2>\u30ea\u30d5\u30a1\u30ec\u30f3\u30b9<\/h2>\n<h3>CAST<\/h3>\n<p><a href=\"https:\/\/dev.mysql.com\/doc\/refman\/8.0\/ja\/cast-functions.html#function_cast\" target=\"_blank\" rel=\"noopener\">https:\/\/dev.mysql.com\/doc\/refman\/8.0\/ja\/cast-functions.html#function_cast<\/a><\/p>\n<p>&nbsp;<\/p>\n<h2>\u6240\u611f<\/h2>\n<p>\u308f\u3056\u308f\u3056\u5909\u63db\u3057\u3066\u691c\u7d22\u3059\u308b\u5f62\u3068\u306a\u3063\u3066\u304a\u308a\u3001DB\u69cb\u9020\u81ea\u4f53\u304c\u826f\u304f\u306a\u3044\u306e\u304b\u306a\u3041\u3068\u306f\u601d\u3044\u3064\u3064\u3082\u300c\u958b\u59cb\u5e74\u6708\u65e5\u300d\u300c\u958b\u59cb\u6642\u5206\u79d2\u300d\u300c\u7d42\u4e86\u5e74\u6708\u65e5\u300d\u300c\u7d42\u4e86\u6642\u5206\u79d2\u300d\u306e4\u30ab\u30e9\u30e0\u306b\u5897\u3084\u3059\u306e\u3082\u305d\u308c\u306f\u305d\u308c\u3067\u9055\u3046\u6c17\u304c\u3057\u3066\u60a9\u307e\u3057\u3044\u3068\u3053\u308d\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>MySQL\u3067datetime\u578b\u306e\u30ab\u30e9\u30e0\u304c\u3042\u308a\u3001\u305d\u3061\u3089\u3092date\u578b\u3084time\u578b\u306b\u5909 ... <\/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-6936","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\/6936","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=6936"}],"version-history":[{"count":2,"href":"https:\/\/taitan916.info\/blog\/wp-json\/wp\/v2\/posts\/6936\/revisions"}],"predecessor-version":[{"id":6938,"href":"https:\/\/taitan916.info\/blog\/wp-json\/wp\/v2\/posts\/6936\/revisions\/6938"}],"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=6936"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/taitan916.info\/blog\/wp-json\/wp\/v2\/categories?post=6936"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/taitan916.info\/blog\/wp-json\/wp\/v2\/tags?post=6936"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}