MySQL\u3067\u300c\u958b\u59cb\u65e5\u6642\u300d\u300c\u7d42\u4e86\u65e5\u6642\u300d\u306edatetime\u578b\u30ab\u30e9\u30e0\u304c\u3042\u308a\u3001\u958b\u59cb\u304b\u3089\u7d42\u4e86\u307e\u3067\u306e\u9593\u9694(\u5dee\u5206)\u3092\u8a08\u7b97\u3057\u305f\u4e0a\u3067\u300c\u5408\u8a08\u3007\u5206\u300d\u306e\u3088\u3046\u306b\u5206\u306b\u5909\u63db\u3057\u3066\u51fa\u529b\u3055\u305b\u305f\u3044\u3002\u5c11\u3005\u3084\u3084\u3053\u3057\u305d\u3046\u306a\u306e\u3067PHP\u5074\u3067\u306e\u5bfe\u5fdc\u306b\u306a\u308b\u304b\u3068\u601d\u3063\u305f\u304c\u3001MySQL\u5074\u3060\u3051\u3067\u306a\u3093\u3068\u304b\u306a\u3063\u305f\u306e\u3067\u4ee5\u4e0b\u306b\u5bfe\u5fdc\u65b9\u6cd5\u3092\u30e1\u30e2\u3002<\/p>\n
<\/p>\n
mysql> 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>\n
\u30c7\u30fc\u30bf\u5185\u5bb9<\/span><\/h2>\n
mysql> TABLE `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>\n
\u5bfe\u5fdc\u65b9\u6cd5<\/h2>\n
SQL\u6587<\/h3>\n
SELECT \r\n `start`, \r\n `end`, \r\n TRUNCATE(\r\n TIME_TO_SEC(\r\n TIMEDIFF(`end`, `start`)\r\n ) \/ 60, 0\r\n ) AS `diff_minute` \r\nFROM test_table;<\/pre>\n\u51fa\u529b\u4f8b<\/h3>\n
+---------------------+---------------------+-------------+\r\n| start | end | diff_minute |\r\n+---------------------+---------------------+-------------+\r\n| 2025-01-01 00:00:00 | 2025-01-01 01:00:00 | 60 |\r\n| 2025-01-01 00:00:00 | 2025-01-01 05:00:00 | 300 |\r\n| 2025-01-01 00:00:00 | 2025-01-01 02:30:00 | 150 |\r\n+---------------------+---------------------+-------------+<\/pre>\n\u89e3\u8aac\u7b49<\/h3>\n
TIMEDIFF\u3067\u6642\u9593\u306e\u5dee\u5206\u3092\u6c42\u3081\u3001\u305d\u306e\u5dee\u5206\u3092TIME_TO_SEC\u3067\u79d2\u306b\u5909\u63db\u5f8c\u300160\u3067\u5272\u3063\u3066\u5206\u306b\u5909\u63db\u3057\u3001TRUNCATE\u3067\u5c0f\u6570\u70b9\u4ee5\u4e0b\u3092\u5207\u308a\u6368\u3066\u3066\u3044\u308b\u3002<\/p>\n
\u4eca\u56de\u306f\u958b\u59cb\u65e5\u6642\u3001\u7d42\u4e86\u65e5\u6642\u5171\u306b\u79d2\u307e\u3067\u306f\u6307\u5b9a\u3057\u306a\u3044\u5f62\u3060\u3063\u305f\u304c\u3001\u6307\u5b9a\u3059\u308b\u5834\u5408\u306fTRUNCATE\u8fba\u308a\u3092\u8abf\u6574\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u305d\u3046\u3002<\/p>\n
<\/p>\n
\u30ea\u30d5\u30a1\u30ec\u30f3\u30b9<\/h2>\n
TIMEDIFF<\/h3>\n
https:\/\/dev.mysql.com\/doc\/refman\/8.0\/ja\/date-and-time-functions.html#function_timediff<\/a><\/p>\n
TIME_TO_SEC<\/h3>\n