ORA-19882: datafile string checkpoint string

admin

ORA-19882: datafile string checkpointstring isahead of space bitmap datafile string
checkpoint string
Cause: Whencheckpointing the datafile containing the space bitmaps for the
datafile being backed up in order to use Unused Block Optimization, the
checkpoint of the datafile containing the space bitmaps did not advance.
Action: Examinethe trace and alert files for possible causes. Fix underlying
problem to use Unused Block Optimization for datafile's backup.