How to create Oracle directory?

Database Directories are required to read/write to a filesystem location from plsql code.

Below is the syntax to create database directory

SQL> create directory PLSQL_DIR AS '/oratmp/code';

Directory created.

Grant Read/write privileges to Required Schema

SQL> GRANT READ,WRITE ON DIRECTORY PLSQL_DIR TO APPS;

Grant succeeded.

Oracle Recovery Manager Troubleshooting ::ORA-27211: Failed to load Media Management Library

This is an error during Database Clone using RMAN.

I was trying to restore database using RMAN Backup

RMAN-00571: ===========================================================

RMAN-00569: ===============
ERROR MESSAGE STACK FOLLOWS ===============

RMAN-00571: ===========================================================

RMAN-03002: failure of Duplicate Db command
RMAN-05501: aborting duplication of target database

RMAN-03009: failure of allocate command on ORA_AUX_SBT_TAPE_1 channel 
ORA-19554: error allocating device, device type: SBT_TAPE, device name:

ORA-27211: Failed to load Media Management Library

Additional information: 

Cause: Backup Configuration was modified.

Solution:
Use the below command to Resolve the error and continue with Database Restore

rman auxiliary / 
run
{
allocate auxiliary channel c1 type disk;
allocate auxiliary channel c2 type disk;
duplicate database to 'DEV' backup location '/Daily_Backup/Backup_16042018';
}
exit;
EOF