my @reports = qw /doc_request doc_errors doc_types /;
my %rpt =
 (
    doc_request => [ "T_Doc_Request, N_Doc_Request, X_Doc_Request" ],
    doc_errors  => [ "T_Doc_Errors, N_Doc_Errors, X_Doc_Errors" ],
    doc_types  => [ "T_Doc_Types, N_Doc_Errors, X_Doc_Errors" ],
 );

my @queries;

foreach (@reports) {
@queries = split /,/, "@{$rpt{$_}}";
 foreach (@queries) {
  print "section is: $_\n";
 }
  splice(@queries);
}