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Oracle® Database Backup and Recovery Reference
11g Release 1 (11.1)

Part Number B28273-01
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RC_BACKUP_PIECE

This view lists information about backup pieces. This view corresponds to the V$BACKUP_PIECE view. Each backup set contains one or more backup pieces.

Multiple copies of the same backup piece can exist, but each copy has its own record in the control file and its own row in the view.

Column Datatype Description
DB_KEY NUMBER The primary key for this database in the recovery catalog. Use this column to form a join with almost any other catalog view.
DB_ID NUMBER The database identifier.
BP_KEY NUMBER The primary key for the backup piece in the recovery catalog. If you issue the LIST command while connected to the recovery catalog, then this value appears in the KEY column of the output.
RECID NUMBER The backup piece RECID from V$BACKUP_PIECE. RECID and STAMP form a concatenated primary key that uniquely identifies this record in the target database control file.
STAMP NUMBER The backup piece stamp propagated from V$BACKUP_PIECE. 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 form a join with RC_BACKUP_SET, RC_BACKUP_CONTROLFILE, RC_BACKUP_DATAFILE, and so on.
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.
BACKUP_TYPE VARCHAR2(1) The type of the backup: D (full or level 0 incremental), I (incremental level 1), L (archived redo log).
INCREMENTAL_LEVEL NUMBER The level of the incremental backup: NULL, 0, or 1.
PIECE# NUMBER The number of the backup piece. The first piece has the value of 1.
COPY# NUMBER The copy number of the backup piece.
DEVICE_TYPE VARCHAR2(255) The type of backup device, for example, DISK.
HANDLE VARCHAR2(1024) The filename of the backup piece.
COMMENTS VARCHAR2(255) Comments about the backup piece.
MEDIA VARCHAR2(80) A comment that contains further information about the media manager that created this backup.
MEDIA_POOL NUMBER The number of the media pool in which the backup is stored.
CONCUR VARCHAR2(3) Specifies whether backup media supports concurrent access: YES or NO.
TAG VARCHAR2(32) The tag for the backup piece. Refer to description in BACKUP for default format for tag names.
START_TIME DATE The time when RMAN started to write the backup piece.
COMPLETION_TIME DATE The time when the backup piece was completed.
ELAPSED_SECONDS NUMBER The duration of the creation of the backup piece.
STATUS VARCHAR2(1) The status of the backup piece: A (available), U (unavailable), D (deleted), or X (expired). Note that status D will not appear unless an older recovery catalog is upgraded.
BYTES NUMBER The size of the backup piece in bytes.
IS_RECOVERY_DEST_FILE VARCHAR2(3) This backup piece is located in the flash recovery area: YES or NO.
RSR_KEY NUMBER Unique key for the row in RC_RMAN_STATUS that created this backup piece.
COMPRESSED VARCHAR2(3) Indicates whether the backup piece is compressed (YES) or not (NO).
SITE_KEY NUMBER Primary key of the Data Guard database associated with this file. Each database in a Data Guard environment has a unique SITE_KEY value. You can use SITE_KEY in a join with the RC_SITE view to obtain the DB_UNIQUE_NAME of the database.
ENCRYPTED VARCHAR2(3) Indicates whether the backup piece is encrypted (YES) or not (NO).
BACKED_BY_OSB VARCHAR2(3) Indicates whether the backup piece is backed up to Oracle Secure Backup (YES) or not (NO).