Nothing to ALTER
ORA-31454 – Oracle Error Code
Illegal value string for operation parameter- expecting: ADD or DROP
ORA-31453 – Oracle Error Code
Illegal value string for parameter- expecting: Y- N- or NULL
ORA-31452 – Oracle Error Code
Illegal value string for parameter- expecting: Y or N
ORA-31451 – Oracle Error Code
Illegal value string for capture_values- expecting: OLD- NEW- or BOTH
ORA-31450 – Oracle Error Code
Illegal value for change_table_name
ORA-31449 – Oracle Error Code
Illegal value for set_name
ORA-31448 – Oracle Error Code
Illegal value for change_source
ORA-31447 – Oracle Error Code
Cannot create change tables in the SYS schema
ORA-31445 – Oracle Error Code
Invalid lock handle while acquiring lock on string