ORA-14266: data type or length of an index

admin

ORA-14266: data typeor length of an index subpartitioning column may not be
changed
Cause: User issued ALTER TABLE statement attempting to modifydata type
and/or length of a column used to subpartition some index defined on the table
named in ALTER TABLE statement, which is illegal
Action: Avoidmodifying data type and/or length of index subpartitioning
column(s)