Argument is expecting a valid memory address of an object
ORA-21709 – Oracle Error Code
Cannot refresh an object that has been modified
ORA-21708 – Oracle Error Code
Inappropriate operation on a transient object
ORA-21707 – Oracle Error Code
Pin duration is longer than allocation duration
ORA-21706 – Oracle Error Code
Duration does not exist or is invalid
ORA-21705 – Oracle Error Code
Service context is invalid
ORA-21704 – Oracle Error Code
Cannot terminate cache or connection without flushing first
ORA-21703 – Oracle Error Code
Cannot flush an object that is not modified
ORA-21702 – Oracle Error Code
Object is not instantiated or has been de-instantiated in cache
ORA-21701 – Oracle Error Code
Attempt to flush objects to different servers