timestampdiff

説明

datetime_expr2 から datetime_expr1 までの間隔を返します。datetime_expr1 と datetime_expr2 は DATE または DATETIME 型でなければなりません。

整数結果と間隔の単位は以下のいずれかである必要があります。

SECOND, MINUTE, HOUR, DAY, WEEK, MONTH, または YEAR。

構文

INT TIMESTAMPDIFF(unit,DATETIME datetime_expr1, DATETIME datetime_expr2)

例

MySQL> SELECT TIMESTAMPDIFF(MONTH,'2003-02-01','2003-05-01');
+--------------------------------------------------------------------+
| timestampdiff(MONTH, '2003-02-01 00:00:00', '2003-05-01 00:00:00') |
+--------------------------------------------------------------------+
|                                                                  3 |
+--------------------------------------------------------------------+

MySQL> SELECT TIMESTAMPDIFF(YEAR,'2002-05-01','2001-01-01');
+-------------------------------------------------------------------+
| timestampdiff(YEAR, '2002-05-01 00:00:00', '2001-01-01 00:00:00') |
+-------------------------------------------------------------------+
|                                                                -1 |
+-------------------------------------------------------------------+

MySQL> SELECT TIMESTAMPDIFF(MINUTE,'2003-02-01','2003-05-01 12:05:55');
+---------------------------------------------------------------------+
| timestampdiff(MINUTE, '2003-02-01 00:00:00', '2003-05-01 12:05:55') |
+---------------------------------------------------------------------+
|                                                              128885 |
+---------------------------------------------------------------------+

キーワード

TIMESTAMPDIFF