permutation of codons into SQL

perm_codon.rb

#!/usr/bin/env ruby

codons = []

a = ['A', 'C', 'T', 'G'] * 3
a.permutation(3).to_a.uniq.each do |codon|
  codons.push(codon.join().to_s)
end

puts "create table refseq (id varchar(20) not null, name varchar(20), description text, #{codons.sort.join(" varchar(3) default 0, ").to_s} varchar(3) default 0);"