To force the clearing of the license plate numbers database, it is necessary to select the Force clear database option in the Edit menu in the ULPR server Debug window.

As a result of executing this procedure, all the license plates recognized earlier than the archive size allows (see Configuring the database records retention period) will be forcibly deleted from the Active Monitor database.

  • When the archive size is set to 1 day, all the records recognized earlier than a day before the launch of the forced database clearing will be deleted.
  • The use of the Force clear database command does not physically reduce the size of the LPREX database.

The forced clearing of the license plate numbers database using the Debug window has been completed.