Timestamp

A timestamp is a Start of changesix orEnd of change seven part value (year, month, day, hour, minute, second, and Start of changeoptional fractional secondEnd of change) that represents a date and time.

Start of changeThe time portion of a timestamp value can include a specification of fractional seconds. The number of digits in the fractional seconds is specified using an attribute in the range from 0 to 12 with a default of 6End of change

The internal representation of a timestamp is a string of Start of changebetween 7 and 13End of change bytes. The first 4 bytes represent the date, the next 3 bytes the time, and the last Start of change0 to 6 bytes the fractional secondsEnd of change.