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Oracle® Database Backup and Recovery Reference
11g Release 2 (11.2)

Part Number E10643-03
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RC_BACKUP_DATAFILE

This view lists information about datafiles in backup sets. It corresponds to the V$BACKUP_DATAFILE view. A backup datafile is uniquely identified by BDF_KEY.

Column Data Type Description
DB_KEY NUMBER The primary key for this database in the recovery catalog. Use this column to join with almost any other catalog view.
DBINC_KEY NUMBER The primary key for the incarnation of the target database. Use this column to join with RC_DATABASE_INCARNATION.
DB_NAME VARCHAR2(8) The DB_NAME of the database incarnation to which this record belongs.
BDF_KEY NUMBER The primary key of the datafile backup in the recovery catalog. If you issue the LIST command while RMAN is connected to the recovery catalog, then this value appears in the KEY column of the output.
RECID NUMBER The backup datafile RECID from V$BACKUP_DATAFILE. RECID and STAMP form a concatenated primary key that uniquely identifies this record in the target database control file.
STAMP NUMBER The backup datafile stamp from V$BACKUP_DATAFILE. RECID and STAMP form a concatenated primary key that uniquely identifies this record in the target database control file.
BS_KEY NUMBER The primary key of the backup set to which this record belongs in the recovery catalog. Use this column to join with RC_BACKUP_SET or RC_BACKUP_PIECE.
SET_STAMP NUMBER The SET_STAMP value from V$BACKUP_SET. SET_STAMP and SET_COUNT form a concatenated key that uniquely identifies the backup set to which this record belongs in the target database control file.
SET_COUNT NUMBER The SET_COUNT value from V$BACKUP_SET. SET_STAMP and SET_COUNT form a concatenated key that uniquely identifies the backup set to which this record belongs in the target database control file.
BS_RECID NUMBER The RECID from V$BACKUP_SET.
BS_STAMP NUMBER The STAMP from V$BACKUP_SET.
BACKUP_TYPE VARCHAR2(1) The type of the backup: D (full or level 0 incremental) or I (incremental level 1).
INCREMENTAL_LEVEL NUMBER The level of the incremental backup: NULL, 0, or 1.
COMPLETION_TIME DATE The completion time of the backup.
FILE# NUMBER The absolute file number of the datafile. Note that when FILE#=0, the record refers to the control file. See the note following this table for special semantics of other columns when FILE#=0.
CREATION_CHANGE# NUMBER The creation SCN of the datafile.
RESETLOGS_CHANGE# NUMBER The SCN of the most recent RESETLOGS in the datafile header.
RESETLOGS_TIME DATE The time stamp of the most recent RESETLOGS in the datafile header.
INCREMENTAL_CHANGE# NUMBER The SCN that determines whether a block will be included in the incremental backup. A block is only included if the SCN in the block header is greater than or equal to INCREMENTAL_CHANGE#.

The range of redo covered by the incremental backup begins with INCREMENTAL_CHANGE# and ends with CHECKPOINT_CHANGE#.

CHECKPOINT_CHANGE# NUMBER The checkpoint SCN of this datafile in this backup set.
CHECKPOINT_TIME DATE The time associated with CHECKPOINT_CHANGE#.
ABSOLUTE_FUZZY_CHANGE# NUMBER The absolute fuzzy SCN. See the note following this table for special semantics when FILE#=0.
DATAFILE_BLOCKS NUMBER The number of data blocks in the datafile.
BLOCKS NUMBER The number of data blocks written to the backup. This value is often less than DATAFILE_BLOCKS because for full backups, blocks that have never been used are not included in the backup, and for incremental backups, blocks that have not changed are not included in the backup. This value is never greater than DATAFILE_BLOCKS.
BLOCK_SIZE NUMBER The size of the data blocks in bytes.
STATUS VARCHAR2(1) The status of the backup set: A (all pieces available), D (all pieces deleted), O (some pieces are available but others are not, so the backup set is unusable).
BS_LEVEL NUMBER The incremental level (NULL, 0, or 1) specified when this backup was created. This value can be different from the INCREMENTAL_LEVEL column because if you run, for example, a level 1 incremental backup, but no previous level 0 backup exists for some files, a level 0 backup is automatically taken for these files. In this case, BS_LEVEL is 1 and INCREMENTAL_LEVEL is 0.
PIECES NUMBER The number of backup pieces in the backup set that contains this backup datafile.
BLOCKS_READ NUMBER Number of blocks that were scanned while taking this backup. If this was an incremental backup, and change tracking was used to optimize the backup, then the value of this column will be smaller than DATAFILE_BLOCKS. Otherwise, the value of this column will be the same as DATAFILE_BLOCKS. Even when change tracking data is used, the value of this column may be larger than BLOCKS, because the data read by change tracking is further refined during the process of creating an incremental backup.
CREATION_TIME DATE Creation timestamp of the datafile.
MARKED_CORRUPT NUMBER Number of blocks marked corrupt.
USED_CHANGE_TRACKING VARCHAR2(3) Whether change tracking data was used to accelerate this incremental backup (YES) or was not used (NO).
USED_OPTIMIZATION VARCHAR2(3) Whether backup optimization was applied (YES) or not (NO).
PCT_NOTREAD NUMBER The percentage of the file that was skipped during this backup. For incremental backups, this value indicates the efficiency of the block change tracking file.
FOREIGN_DBID NUMBER Foreign DBID of the database from which this datafile was transported. The value is 0 if the file backed up is not a foreign database file.
PLUGGED_READONLY VARCHAR2(3) YES if this is a backup of a transported read-only foreign file; otherwise NO.
PLUGIN_CHANGE# NUMBER SCN at which the foreign datafile was transported into the database. The value is 0 if this file is not a foreign database file.
PLUGIN_RESETLOGS_CHANGE# NUMBER The SCN of the RESETLOGS operation for the incarnation into which this foreign file was transported. The value is 0 if this file is not a foreign database file.
PLUGIN_RESETLOGS_TIME DATE The time of the RESETLOGS operation for the incarnation into which this foreign file was transported. The value is 0 if this file is not a foreign database file.
SECTION_SIZE NUMBER Specifies the number of blocks in each section of a multisection backup. Value is 0 for whole file backups.