Timestampdiff & time_to_sec usage

Source: Internet
Author: User

Timestampdiff: this function can be used to set the second value across days.

The time_to_sec function is only applicable to values in the current day.


Use the time_to_sec function with caution if it is a subtraction of two seconds, because it only applies to the subtraction of seconds within one day. If it is more than one day, a negative number will be reduced.

Therefore, use the timestampdiff function to subtract two time seconds.


Timestampdiff & time_to_sec usage

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