Partition Control File

The partition control file has an external name in the format map–file–name.dat. It is the control file for partitions in the same way as the database control file _control.dat is the control file for the entire database.

The partition control file contains a partition control record for each partition in the partition set. These records contain attributes such as the creation and last modified timestamps for the partition. The partitionID is used as the relative record offset to access the control record of a partition.

The file control record in _control.dat that corresponds to a partitioned file contains the attributes of the partition control file.

Use the batch JADE Database utility (jdbutilb) restorePartitionFile command to restore a backed up partitioned database file.