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DB_Column.date_add

date_addamountperiod

Group: DateTime

Documentation​

Shifts the date/time by a specified period, returning a new date/time column of the same type.

Arguments​

  • amount: An integer or integer column specifying by how many periods to shift each date.
  • period: The period by which to shift. For Date columns it should be a Date_Period and for Time columns it should be a Time_Period. For Date_Time columns it can be either. It defaults to Day where possible and Hour for Time columns.

Remarks​

Time Zone handling​

Some backends may not preserve the timezone data in a Date_Time (preserving the represented time instant). This may lead to slight differences in time calculations between backends, especially around unusual events like DST.