E2846 Cmd Rej: ETT cannot be mapped to MTT with same value

The value specified for the ett cannot have already been specified for the mtt parameter.

Recovery

1. Display the existing ttmap values. Enter the rtrv-ttmap command.
2. Re-enter the ent-ttmap command that generated this error message, specifying a valid combination of parameters. Refer to the Database Administration - GTT User's Guide for assistance.
   Contact My Oracle Support if this error message appears again. See My Oracle Support (MOS).