beginPartitionedFileBackup(backupDir: String;
verifyChecksums: Boolean;
compress: Boolean;
overwriteDest: Boolean) serverExecution;
The beginPartitionedFileBackup method of the DbFile class enables you to prepare to back up a subset of the partitions associated with a database file or to back up multiple partitions in parallel. Execution of this method backs up the partition control file and the partition index file.
This method must be called before the first partition is backed up by using the backupFilePartition method of the JadeDbFilePartition class.
If a parallel or selective backup of partitions is not required, use the backupFile method.
A beginPartitionedFileBackup method call must later be closed with an endPartitionedFileBackup method call.
An exception is raised if the database file is not partitioned.