DBA_HIST_DATAFILE

DBA_HIST_DATAFILE displays a history of the data file 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 data file was created
`FILENAME`	`VARCHAR2(513)`	`NOT NULL`	Name of the data file
`TS#`	`NUMBER`	`NOT NULL`	Tablespace number
`TSNAME`	`VARCHAR2(30)`		Name of the tablespace
`BLOCK_SIZE`	`NUMBER`		Block size of the data file
`CON_DBID`	`NUMBER`		The database ID of the PDB for the sampled session
`CON_ID`	`NUMBER`		The ID of the container that `CON_DBID` identifies. 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