I have found that the easiest version for me to read (and understand when I come back to it later) is an interpolated array:

my @qm = ('?') x $n;
my $str = do {local $" = q{,}; "CALL DB_PROC_FOO(@qm)"};

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In reply to Re: Rewrite in a more compact way by Narveson
in thread Rewrite in a more compact way by andreas1234567

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