Abstract: A method for generating a copy of a database using a data streaming protocol is disclosed. The method comprises setting up a structure of a secondary database, prioritizing data objects to be copied from a primary database to the secondary database, copying data objects from the primary database to the secondary database using a data streaming protocol, restoring data corresponding to the data object in the secondary database in parallel to copying data objects from the primary database to the secondary database, applying changes made to the data corresponding to the data object in the primary database during the time of copying, after the data object has been copied, and making available the secondary database for usage once all data objects have been copied from the primary database to the secondary database so that a usable copy of the primary database is created.

Abstract: The present invention relates to a signalling device (10) for generating a light signal when driving a vehicle, comprising a fastening section (20) allowing reversible attachment to an upper arm (U) of a driver (D) of the vehicle and a signalling element (30) with a plurality of signalling means (32) for generating the light signal, further comprising a control module (40) for controlling the signalling element (30) with at least one sensor element (50) for detecting gestures of the upper arm (U) of the driver (D), wherein the control module (40) further comprises a distinguishing element (60) for distinguishing the recognised gestures of the upper arm (U) of the driver (D) from driving movements of the driver (D) when driving the vehicle.