How to enable flashback in Standby database

How to enable flashback in Standby database

Below is the command to start MRP process

SQL>  recover managed standby database disconnect;
Media recovery complete.

Below we get error because MRP is still active and applying the changes

SQL>  alter database flashback on;
 alter database flashback on
*
ERROR at line 1:
ORA-01153: an incompatible media recovery is active

Below is the command to stop the MRP process

SQL>  recover managed standby database cancel;
Media recovery complete.

So now we will be able to enable flashback

SQL>  alter database flashback on;

Database altered.

Below is the command to start the MRP process

SQL>  recover managed standby database disconnect;
Media recovery complete.