The following is the ORA-14639 error message, you can learn the cause and solution of the Oracle database error.
ORA-14639 SUBPARTITIONS clause can be specified only for Hash, Composite Range Hash table/partition
Cause: Attempted to specify SUBPARTITIONS clause on table that is not partitioned by the Composite Range-Hash method.
Solution: Re-issue the command after ensuring that the SUBPARTITIONS clause is not specified. To specify a template for a Composite Range List object use the SUBPARTITION TEMPLATE clause.
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