"only one PARALLEL or NOPARALLEL clause may be specified"
*Cause: PARALLEL was specified more than once, NOPARALLEL was specified
more than once, or both PARALLEL and NOPARALLEL were specified
in a CREATE TABLE, CLUSTER, or INDEX or in an ALTER TABLE or
CLUSTER statement, or in a RECOVER command.
*Action: Remove all but one of the PARALLEL or NOPARALLEL clauses and
reissue the statement.