DBA_HIST_DATAFILE

DBA_HIST_DATAFILE displays a history of the datafile information from the control file. This view contains snapshots of V$DATAFILE.

Column	Datatype	NULL	Description
`DBID`	`NUMBER`	`NOT NULL`	Database ID
`FILE#`	`NUMBER`	`NOT NULL`	File identification number
`CREATION_CHANGE#`	`NUMBER`	`NOT NULL`	Change number at which the datafile was created
`FILENAME`	`VARCHAR2(513)`	`NOT NULL`	Name of the datafile
`TS#`	`NUMBER`	`NOT NULL`	Tablespace number
`TSNAME`	`VARCHAR2(30)`	`NOT NULL`	Name of the tablespace
`BLOCK_SIZE`	`NUMBER`		Block size of the datafile