Using a leading "r_" on references can help to keep track of things, mnemonic-wise: 
 sub makeSql {
   my $r_xpid = shift;
   my $return = "";

   $return .= $r_xpid->[$_]
       foreach 0 .. scalar @$r_xpid - 1;
    return $return;
 }

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In reply to Re: Re: Help w passing array by ref by kesterkester
in thread Help w passing array by ref by alienhuman

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