The unique internal identifier of the database
record currently associated with the buffer.
      
        Data type: ROWID
      
        Access: Read-only
      
        Applies
to:
        Buffer object handle
      
      Note: The ROWID attribute corresponds to the ROWID function.
The ROWID of a record in a partitioned table identifies both the
partition and the address of the record in the partition. If a partition
field is updated in the record and, as a result, the record is moved
to a different partition, the record's ROWID will change.