MySQL Function Reference

MICROSECOND
Returns the microseconds (0-999999) from a time or datetime value.
MySQL 8.1
MICROSECOND(expr)
expr
The time or datetime value.
Examples
MySQL 8.1
SELECT MICROSECOND(date)
FROM Payments;
MySQL 8.1
SELECT member_name,
	MICROSECOND(birthday)
FROM FamilyMembers;