|  
 FILE# 
 | 
 
 NUMBER 
 | 
 
 File identification number 
 | 
|  
 CREATION_CHANGE# 
 | 
 
 NUMBER 
 | 
 
 Change number at which the datafile was created 
 | 
|  
 CREATION_TIME 
 | 
 
 DATE 
 | 
 
 Timestamp of the datafile creation 
 | 
|  
 TS# 
 | 
 
 NUMBER 
 | 
 
 Tablespace number 
 | 
|  
 RFILE# 
 | 
 
 NUMBER 
 | 
 
 Tablespace relative datafile number 
 | 
|  
 STATUS 
 | 
 
 VARCHAR2(7) 
 | 
 
 Type of file (system or user) and its status. Values: OFFLINE, ONLINE, SYSTEM, RECOVER, SYSOFF (an offline file from the SYSTEM tablespace) 
 | 
|  
 ENABLED 
 | 
 
 VARCHAR2(10) 
 | 
 
 Describes how accessible the file is from SQL: 
DISABLED - no SQL access allowed 
READ ONLY - no SQL updates allowed 
READ WRITE - full access allowed 
UNKNOWN - should not occur unless the control file is corrupted 
 
 | 
|  
 CHECKPOINT_CHANGE# 
 | 
 
 NUMBER 
 | 
 
 SCN at last checkpoint 
 | 
|  
 CHECKPOINT_TIME 
 | 
 
 DATE 
 | 
 
 Time stamp of the checkpoint# 
 | 
|  
 UNRECOVERABLE_CHANGE# 
 | 
 
 NUMBER 
 | 
 
 Last unrecoverable change# made to this datafile. This column is always updated when an unrecoverable operation completes. 
 | 
|  
 UNRECOVERABLE_TIME 
 | 
 
 DATE 
 | 
 
 Time stamp of the last unrecoverable change 
 | 
|  
 LAST_CHANGE# 
 | 
 
 NUMBER 
 | 
 
 Last change# made to this datafile. Set to NULL if the datafile is being changed. 
 | 
|  
 LAST_TIME 
 | 
 
 DATE 
 | 
 
 Timestamp of the last change 
 | 
|  
 OFFLINE_CHANGE# 
 | 
 
 NUMBER 
 | 
 
 Offline change# of the last offline range. This column is updated only when the datafile is brought online. 
 | 
|  
 ONLINE_CHANGE# 
 | 
 
 NUMBER 
 | 
 
 Online change# of the last offline range 
 | 
|  
 ONLINE_TIME 
 | 
 
 DATE 
 | 
 
 Online timestamp of the last offline range 
 | 
|  
 BYTES 
 | 
 
 NUMBER 
 | 
 
 Current size in bytes; 0 if inaccessible 
 | 
|  
 BLOCKS 
 | 
 
 NUMBER 
 | 
 
 Current datafile size in blocks; 0 if inaccessible 
 | 
|  
 CREATE_BYTES 
 | 
 
 NUMBER 
 | 
 
 Size when created, in bytes 
 | 
|  
 BLOCK_SIZE 
 | 
 
 NUMBER 
 | 
 
 Block size of the datafile 
 | 
|  
 NAME 
 | 
 
 VARCHAR2(513) 
 | 
 
 Datafile name 
 | 
|  
 PLUGGED_IN 
 | 
 
 NUMBER 
 | 
 
 Describes whether the tablespace is plugged in. The value is 1 if the tablespace is plugged in and has not been made read-write, 0 if not. 
 | 
|  
 BLOCK1_OFFSET 
 | 
 
 NUMBER 
 | 
 
 The offset from the beginning of the file to where the Oracle generic information begins. The exact length of the file can be computed as follows: BYTES+BLOCK1_OFFSET. 
 | 
|  
 AUX_NAME 
 | 
 
 VARCHAR2(513) 
 | 
 
 The auxiliary name that has been set for this file via CONFIGURE AUXNAME 
 |