my $ref = $dbFileArray{ 'sci' };
...
push @$ref, $oneRec;

##</code><code>##

no warnings 'experimental::autoderef';
...
my $ref = $dbFileArray{ 'sci' };
...
push $ref, $oneRec;

##</code><code>##

my %dbFileArray = (
               'sci' => \@sciDbRows,
               ...
               );