ORA-19648

Error: ORA-19648: datafile string: incremental-start SCN equals checkpoint SCN

Causa: The incremental-start SCN which was specified when starting an incremental datafile backup is equal to the datafile's checkpoint SCN. Since an incremental backup can only be applied to a datafile whose checkpoint SCN is between the backup set incremental-start SCN (inclusive) and the backup set checkpoint SCN (exclusive), there is no datafile that this backup set could ever be applied to.

Acción: Specify a smaller incremental-start SCN.