about bfile

BFILE Datatype
The<wbr> BFILE datatype stores unstruct ured binary data in oper ating-system files outside<br> the database. A BFILE column or attribute stores a file locator that points to an<br> external file containing the data.<wbr> BFILEs can store up to 8 terabytes of data.<br> BFILEs are read only; you cannot modify them. They support only random (not<br> sequential) reads, and they do not participate in transactions. The underlying<br> operating system must maintain the file integrity, security, and durability for<wbr> BFILE s.<br> The database administrator must ensure that the file exists and that Oracle processes<br> have operating-system read permissions on the file. </wbr></wbr></wbr>