Oracle 视图 V$BACKUP_PIECE_DETAILS 官方解释，作用，如何使用详细说明
本站中文解释
Oracle视图V$BACKUP_PIECE_DETAILS用于查询数据库备份块的信息。在Oracle 11gR2中，可以使用此视图用于监控和检索备份块的信息。
它存储了关于备份和还原操作的所有细节，可以提供诸如完成日期和时间、进度、备份和恢复运行时长、警告、错误等细节。可以使用这些信息来监测备份进度，检查备份性能，查找/解决备份失败和错误等。
使用方法：
要查询V$BACKUP_PIECE_DETAILS视图，可以运行下列SQL查询：
SELECT * FROM V$BACKUP_PIECE_DETAILS
该查询将显示关于所有备份块的详细信息。可以使用where子句限定您感兴趣的备份块，例如：
SELECT * FROM V$BACKUP_PIECE_DETAILS
WHERE STATUS = ‘COMPLETED’;
这可以返回已成功完成的备份块的信息。
官方英文解释
V$BACKUP_PIECE_DETAILS displays information about all available backup pieces.
| Column | Datatype | Description |
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Session identifier |
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Session recid |
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Session stamp |
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Backup set identifier |
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Backup piece key |
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Backup piece record ID |
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Backup piece record stamp |
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Backup set stamp |
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Backup set count |
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Backup piece number (1-N) |
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Indicates the copy number for backup pieces created with duplex enabled. The value is 1 if the backup piece is not duplexed. |
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Type of device on which the backup piece resides. Set to DISK for backup sets on disk. |
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Backup piece handle identifies the backup piece on restore |
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Comments returned by the operating system or storage subsystem. Set to NULL for backup pieces on disk. This value is informational only. It is not needed for restore. |
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Name of the media on which the backup piece resides. This value is informational only. It is not needed for restore. |
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The media pool in which the copy resides. This is the same value that was entered in the |
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(YES|NO) indicates whether or not the piece is on a media that can be accessed concurrently |
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Backup piece tag. The tag is specified at backup set level, but stored at piece level. |
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Indicates the status of the piece: |
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Starting time |
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Completion time |
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Number of elapsed seconds |
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Size of the backup piece, in bytes |
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Indicates whether or not the file was created in the fast recovery area ( |
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Owning |
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Owning |
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Indicates whether the backup piece is compressed ( |
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Whether or not the file has been backed up by Volume Shadow Copy Service (VSS). This column is reserved for internal use. |
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A value of |
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A value of |
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Indicates whether this is a cross platform backup piece:
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If the value of |
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The ID of the container to which the data pertains. Possible values include:
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Number of backup pieces per set |
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Size (in bytes) of the backup piece to display |
