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

本站中文解释

Oracle视图V$BACKUP_CONTROLFILE_SUMMARY是Oracle数据库的动态性能视图，查看控制文件的备份信息。它的成员变量主要有：OFFLINE_RANGE,STATUS,BACKUP_SET_MASTER,BACKUP_MEMBER,BACKUP_PIECE, ENDSCNS, STARTSCNS,FILE_TYPE, START_TIME和END_TIME等。它可以用来检查控制文件是否已成功备份，备份开始结束时间，备份文件类型，备份控制文件SCN号码等各项信息。

使用V$BACKUP_CONTROLFILE_SUMMARY视图可以利用如下SQL查询相关信息：

SELECT OFFLINE_RANGE,STATUS,BACKUP_SET_MASTER,BACKUP_MEMBER, BACKUP_PIECE, ENDSCNS, STARTSCNS,FILE_TYPE, START_TIME,END_TIME FROM V$ BACKUP_CONTROLFILE_SUMMARY;

官方英文解释

V$BACKUP_CONTROLFILE_SUMMARY provides control file summary information, based on either a backup set of files, image copies, or proxy copies.

Column Datatype Description

NUM_FILES_BACKED

NUMBER

Number of files backed up for specific criteria

NUM_DISTINCT_FILES_BACKED

NUMBER

Number of distinct files backed up

MIN_CHECKPOINT_CHANGE#

NUMBER

Minimum checkpoint change number of the data file for specified criteria

MAX_CHECKPOINT_CHANGE#

NUMBER

Maximum checkpoint change number of the data file for specified criteria

MIN_CHECKPOINT_TIME

DATE

Minimum checkpoint time of the data file for specified criteria

MAX_CHECKPOINT_TIME

DATE

Maximum checkpoint time of the data file for specified criteria

INPUT_BYTES

NUMBER

Total input bytes of files read

OUTPUT_BYTES

NUMBER

Total output bytes written

COMPRESSION_RATIO

NUMBER

The ratio between the total blocks in the datafile and the blocks that RMAN backed up. This is not the the ratio from the AS COMPRESSED BACKUPSET clause of the BACKUP command.

INPUT_BYTES_DISPLAY

VARCHAR2(4000)

Displayable format for input bytes

OUTPUT_BYTES_DISPLAY

VARCHAR2(4000)

Displayable format for output bytes

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


数据运维技术 » Oracle 视图 V$BACKUP_CONTROLFILE_SUMMARY 官方解释，作用，如何使用详细说明
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