Oracle DBFS Development 12c Release 1

The Oracle Database File System (DBFS) functionality was introduce in Oracle 11g. The main down side to this characteristic was genuine file system method access was simply obtainable on the Linux platform due to the dependence on the FUSE project. Other platforms were limited to use the customer tool to access the file system.

Oracle 12c introduce HTTP/HTTPS, FTP and Web DAV access to DBFS via the “/dbfs” virtual directory in the XML DB repository.

Setup : The setup of a DBFS file system in 12c is the identical as that for Oracle 11g, explain here. The subsequent code create a latest table space, user and DBFS file system.

CONN / AS SYSDBA

CREATE TABLESPACE dbfs_ts

DATAFILE ‘/u01/app/oracle/oradata/DB12C/dbfs01.dbf’

SIZE 1M AUTOEXTEND ON NEXT 1M;

CREATE USER dbfs_user IDENTIFIED BY dbfs_user

DEFAULT TABLESPACE dbfs_ts QUOTA UNLIMITED ON dbfs_ts;

GRANT CREATE SESSION, RESOURCE, CREATE VIEW, DBFS_ROLE TO dbfs_user;

EXIT;

cd $ORACLE_HOME/rdbms/admin

sqlplus dbfs_user/dbfs_user

SQL> @dbfs_create_filesystem.sql dbfs_ts staging_area

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HTTP and HTTPS Access : Oracle 12c automatically enables read-only access to the DBFS file systems via the “/dbfs” virtual directory in the XML DB repository. Make sure the HTTPS port is configured on your server.

SQL> SELECT DBMS_XDB_CONFIG.gethttpsport from dual;

GETHTTPSPORT

————

5500

If it is set to “0”, set the desired port using the following command.

EXEC DBMS_XDB_CONFIG.sethttpsport(5500);

The DBFS file system should now be visible using the following style of URL.

https://machine:port/dbfs

httpsL//username:password@machine:port/dbfs

https://ol6-121.localdomain:5500/dbfs

https://DBFS_USER:dbfs_user@ol6-121.localdomain:5500/dbfs

Both HTTP and HTTPS utilize fundamental verification, so if you do not identify the recommendation in the URL you will require to enter them when encouraged. Both the username and password are case sensitive, so identify the username in uppercase.

FTP Access : Oracle 12c mechanically enable FTP access to the DBFS file systems via the “/dbfs” virtual directory in the XML DB repository. Check the FTP port is configured on your server. If it is set to “0”, set it to the preferred port.

SQL> SELECT DBMS_XDB_CONFIG.getftpport from dual;

GETFTPPORT

———-

0

SQL> EXEC DBMS_XDB_CONFIG.setftpport(4021);

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