"all rows in table do not qualify for specified subpartition"
*Cause: There is at least one row in the non partitioned table which
does not qualify for the subpartition specified in the ALTER TABLE
*Action: Ensure that all the rows in the segment qualify for
the subpartition. Perform the alter table operation with
the NO CHECKING option. Run ANALYZE table VALIDATE on that
subpartition to find out the invalid rows and delete them.