Oracle Message ORA-14060 - data type or length of a table partitioning column may not be changed

ERRORdata type or length of a table partitioning column may not be changed
CAUSEUser issued ALTER TABLE statement attempting to modify data type and/or length of a column used to partition the table named in ALTER TABLE statement, which is illegal
ACTIONAvoid modifying data type and/or length of table partitioning column(s)