ORA-12490: DBHIGH cannot be lowered
Cause: You attempted to enter a value for DBHIGH that did not dominate the existing value of DBHIGH.
Action: Enter a value for DBHIGH that dominates the old value.
Cause: You attempted to enter a value for DBHIGH that did not dominate the existing value of DBHIGH.
Action: Enter a value for DBHIGH that dominates the old value.
