public String createSQL()
    {
        String ret=toString()+" ";
        int valn = decoration.size();
        String column="";
        for(int i=0;i<valn;i++)
        {
            if(decoration.get(i)==DBConstraint.NOT_NULL)
            {
                ret += decoration.get(i).toString()+",";
            }
            else if(decoration.get(i)==DBConstraint.PRIMARY_KEY)
            {
                column +=decoration.get(i).toString()+"("+getName()+"), ";               
            }
        }
        
        if(ret.charAt(ret.length()-1)!=',')
        {
            ret+=",";
        }
        ret+=column;
        return ret;
    }