Oracle9i Database Reference
Release 1 (9.0.1)

Part Number A90190-02
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Static Data Dictionary Views, 160 of 521


DBA_DATA_FILES

DBA_DATA_FILES describes database files.

Column  Datatype  NULL  Description 

FILE_NAME 

VARCHAR2(513) 

 

Name of the database file 

FILE_ID  

NUMBER 

NOT NULL 

ID of the database file  

TABLESPACE_NAME 

VARCHAR2(30) 

NOT NULL 

Name of the tablespace to which the file belongs 

BYTES  

NUMBER 

 

Size of the file in bytes 

BLOCKS 

NUMBER 

NOT NULL 

Size of the file in Oracle blocks 

STATUS  

VARCHAR2(9) 

 

File status: AVAILABLE or INVALID (INVALID means that the file number is not in use, for example, a file in a tablespace that was dropped) 

RELATIVE_FNO 

NUMBER 

 

Relative file number 

AUTOEXTENSIBLE 

VARCHAR2(3) 

 

Autoextensible indicator 

MAXBYTES 

NUMBER 

 

Maximum file size in bytes 

MAXBLOCKS 

NUMBER 

 

Maximum file size in blocks 

INCREMENT_BY 

NUMBER 

 

Autoextension increment 

USER_BYTES 

NUMBER 

 

Corresponding number of bytes 

USER_BLOCKS 

NUMBER 

 

Number of blocks which can be used by the data 


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