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Oracle® Database Reference
10g Release 2 (10.2)

Part Number B14237-01
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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 File identifier number 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
ONLINE_STATUS VARCHAR2(7)   Online status of the file:
  • SYSOFF

  • SYSTEM

  • OFFLINE

  • ONLINE

  • RECOVER