Oracle 视图 V$BACKUP_SET 官方解释，作用，如何使用详细说明

RECID

NUMBER

Backup set record ID

STAMP

NUMBER

Backup set record stamp

SET_STAMP

NUMBER

Backup set stamp. The backup set stamp and count uniquely identify the backup set.

Primary key for the V$BACKUP_SET table, and the foreign key for the following tables: V$BACKUP_PIECE, V$BACKUP_DATAFILE, V$BACKUP_REDOLOG, V$BACKUP_CORRUPTION.

SET_COUNT

NUMBER

Backup set count. The backup set count is incremented by one every time a new backup set is started (if the backup set is never completed the number is “lost”). If the control file is re-created then the count is reset to 1. Therefore the count must be used with the stamp to uniquely identify a backup set.

Primary key for the V$BACKUP_SET table, and the foreign key for the following tables: V$BACKUP_PIECE, V$BACKUP_DATAFILE, V$BACKUP_REDOLOG, V$BACKUP_CORRUPTION

BACKUP_TYPE

VARCHAR2(1)

Type of files that are in this backup. If the backup contains archived redo logs, the value is L. If this is a data file full backup, the value is D. If this is an incremental backup, the value is I.

CONTROLFILE_INCLUDED

VARCHAR2(3)

Provides information about the control file in the backup set:

• YES: The control file included is a primary control file.

• SBY: The control file included is a standby control file.

• NO: A control file is not included.

INCREMENTAL_LEVEL

NUMBER

Location where this backup set fits into the database’s backup strategy. Set to NULL for full datafile, archivelog, controlfile, and spfile backups, set to 0 for incremental level 0 datafile backups, and set to 1 for incremental level 1 datafile backups.

PIECES

NUMBER

Number of distinct backup pieces in the backup set

START_TIME

DATE

Starting time

COMPLETION_TIME

DATE

Time that this backup set completed

ELAPSED_SECONDS

NUMBER

The number of elapsed seconds

BLOCK_SIZE

NUMBER

Block size of the backup set

INPUT_FILE_SCAN_ONLY

VARCHAR2(3)

YES indicates no actual backup is performed, but the data files are read. NO indicates a normal backup is performed.

KEEP

VARCHAR2(3)

(YES/NO) Indicates whether or not this backup set has a retention policy that is different than the value for the configure retention policy

KEEP_UNTIL

DATE

If KEEP_UNTIL_TIME is specified, this is the date after which the backup becomes obsolete. If this column is null, then the backup never expires.

KEEP_OPTIONS

VARCHAR2(11)

Lists additional retention options for this backup set. Possible values are:

LOGS – The logs need to recover this backup are kept

NOLOGS – The logs needed to recover this backup will not be kept

BACKUP_LOGS – An archive log backup exists to support this backup set

MULTI_SECTION

VARCHAR2(3)

Indicates whether or not this backup set is a multi-section backup. Valid values are YES and NO. A multi-section backup is a backup in which multiple backup pieces are produced independently in parallel by multiple channels.

FOR_XTTS

VARCHAR2(3)

Indicates whether this is a cross platform backup set:

• YES: This is a cross platform backup set.

• NO: This is not a cross platform backup set.

SAME_ENDIAN

VARCHAR2(3)

If the value of FOR_XTTS is YES, then this column indicates whether the backup set has the same endianess as the current database (YES) or not (NO); otherwise NULL.

INC_DMPFILE

VARCHAR2(3)

If the value of FOR_XTTS is YES, then this column indicates whether the backup set includes a Data Pump export file of the backed up data files (YES) or not (NO), otherwise NULL.

CON_ID

NUMBER

The ID of the container to which the data pertains. Possible values include:

• 0: This value is used for rows containing data that pertain to the entire CDB. This value is also used for rows in non-CDBs.

• 1: This value is used for rows containing data that pertain to only the root

• n: Where n is the applicable container ID for the rows containing data

GUID

RAW(16)

The GUID of the PDB to which the backup belongs. This is useful after the PDB is dropped to identify which PDB the backup belongs to.