It's not possible for us to run your example, as you didn't provide the code to populate the database.

Moreover, the code is not the same. In the "works" case, you're using $transseqchk->{transchk} as the key in %actionsw, but it contains a hash reference, so the if condition is false and the code dereference is not executed.

Update: If you're curious how I discovered it, here's the code I used. I mocked the database as I guessed it's irrelevant to the question. 

#!/usr/bin/perl
use warnings;
use strict;

my $dbh = bless {}, 'My::Mock';
sub My::Mock::selectrow_array { {cmd => 'transref_seq_add'} }

sub works {
    my %transseqchk;
    my $transref_chksql = 'blah';
    my $transseqchk->{transchk}=
        ( $dbh->selectrow_array($transref_chksql) )[0];

    $transseqchk->{transref_seq_add}{cmd} = sub{
        my $encode_transref_seqmsql = 'blah';
        $dbh->do($encode_transref_seqmsql);
    };
    warn "CMD: $transseqchk->{transchk}->{cmd}.";
    if ($transseqchk->{transchk}{cmd}){
        warn "DOES $transseqchk->{transchk}->{cmd}.";
        &{$transseqchk->{transchk}->{cmd}};
    }
}

sub doesnt {
    my $transref_chksql = 'blah';
    my $transseqchk->{transchk} =
        ( $dbh->selectrow_array($transref_chksql) )[0];
    my %actionsw = ( transref_seq_add =>
                     { cmd => sub {
                           my $encode_transref_seqmsql = 'blah';
                           $dbh->do($encode_transref_seqmsql);
                       } }
                   );
    warn "KEY: $transseqchk->{transchk}.";
    warn "CMD: $actionsw{ $transseqchk->{transchk} }->{cmd}.";
    if ($actionsw{ $transseqchk->{transchk} }->{cmd}){
        warn "DOESNT $actionsw{$transseqchk->{transchk}}->{cmd}.";
        &{$actionsw{$transseqchk->{transchk}}->{cmd}};
    }
}

eval { works();  1 } or warn "w: $@";
eval { doesnt(); 1 } or warn "n: $@";

[download]

Output: 

CMD: transref_seq_add. at ./1.pl line 18.
DOES transref_seq_add. at ./1.pl line 20.
w: Can't use string ("transref_seq_add") as a subroutine ref while "st
+rict refs" in use at ./1.pl line 21.
KEY: HASH(0x563da0230d58). at ./1.pl line 35.
Use of uninitialized value in concatenation (.) or string at ./1.pl li
+ne 36.
CMD: . at ./1.pl line 36.

[download]

map{substr$_->[0],$_->[1]||0,1}[\*||{},3],[[]],[ref qr-1,-,-1],[{}],[sub{}^*ARGV,3]

In reply to Re: When is strict 'refs triggered by choroba
in thread When is strict 'refs triggered by redtux

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