V$BACKUP_ARCHIVELOG_DETAILS

V$BACKUP_ARCHIVELOG_DETAILS contains information about all restorable archive logs. It will include all archived logs backed up in a backup set or proxy copies.

Column	Datatype	Description
`BTYPE`	`CHAR(9)`	Backup type container, either `BACKUPSET` or `PROXYCOPY`
`BTYPE_KEY`	`NUMBER`	Unique identifier for the backup type. For `BACKUPSET`, it is `BS_KEY`.
`SESSION_KEY`	`NUMBER`	Session identifier
`SESSION_RECID`	`NUMBER`	Session recid
`SESSION_STAMP`	`NUMBER`	Session stamp
`ID1`	`NUMBER`	If `BACKUPSET`, it contains `SET_STAMP` If `PROXYCOPY`, it is `RECID` from the control file
`ID2`	`NUMBER`	If `BACKUPSET`, it contains `SET_COUNT` If `PROXYCOPY`, it is `STAMP`
`THREAD#`	`NUMBER`	Thread number
`SEQUENCE#`	`NUMBER`	Sequence number
`RESETLOGS_CHANGE#`	`NUMBER`	Resetlogs change SCN
`RESETLOGS_TIME`	`DATE`	Resetlogs change time
`FIRST_CHANGE#`	`NUMBER`	First change SCN
`FIRST_TIME`	`DATE`	First change time
`NEXT_CHANGE#`	`NUMBER`	Next change SCN
`NEXT_TIME`	`DATE`	Next change time
`FILESIZE`	`NUMBER`	File size
`COMPRESSION_RATIO`	`NUMBER`	The ratio between the total blocks in the archive log and the blocks that RMAN backed up. This is not the ratio from the `AS COMPRESSED BACKUPSET` clause of the `BACKUP` command.
`FILESIZE_DISPLAY`	`VARCHAR2(4000)`	Same value as the `FILESIZE` column, but converted to a user-displayable format, for example `n`M, `n`G, `n`T, `n`P, and so on