hours_diff
Description
Returns the hour difference between two date expressions (expr1
− expr2
), accurate to the hour.
Syntax
BIGINT hours_diff(DATETIME expr1, DATETIME expr2);
Parameters
-
expr1
: the end time. It must be of the DATETIME type. -
expr2
: the start time. It must be of the DATETIME type.
Return value
Returns a BIGINT value.
NULL is returned if the date does not exist, for example, 2022-02-29.
Examples
select hours_diff('2010-11-30 23:59:59', '2010-11-30 20:58:59');
+----------------------------------------------------------+
| hours_diff('2010-11-30 23:59:59', '2010-11-30 20:58:59') |
+----------------------------------------------------------+
| 3 |
+----------------------------------------------------------+