milliseconds_diff
Description
Returns the time difference between the start date and end date in milliseconds.
This function is supported from v3.2.4.
Syntax
BIGINT milliseconds_diff(DATETIME expr1, DATETIME expr2);
Parameters
-
expr1
: the end time. It must be of the DATETIME type. Ifexpr1
is earlier thanexpr2
, a negative value is returned. -
expr2
: the start time. It must be of the DATETIME type.
Return value
Returns a value of the BIGINT type. NULL is returned if the input date does not exist.
Examples
select milliseconds_diff('2024-01-25 21:00:00.423','2024-01-25 21:00:00.123');
+-------------------------------------------------------------------------+
| milliseconds_diff('2024-01-25 21:00:00.423', '2024-01-25 21:00:00.123') |
+-------------------------------------------------------------------------+
| 300 |
+-------------------------------------------------------------------------+
select milliseconds_diff('2024-01-25 21:00:01', '2024-01-25 21:00:00');
+-----------------------------------------------------------------+
| milliseconds_diff('2024-01-25 21:00:01', '2024-01-25 21:00:00') |
+-----------------------------------------------------------------+
| 1000 |
+-----------------------------------------------------------------+
select milliseconds_diff('2024-01-25 00:00:01', '2024-01-25');
+--------------------------------------------------------+
| milliseconds_diff('2024-01-25 00:00:01', '2024-01-25') |
+--------------------------------------------------------+
| 1000 |
+--------------------------------------------------------+