いつもお世話になっております。

CSV出力設定の高度な設定で、配送先や配送物の商品コードなどを抜き出したいと思っています。
過去ログなどを参考にし、SQL文を作成したのですが、商品コードが抜き出せず、一番上にあるもの(dtb_order_detailの1行目)を必ず抜き出す状況になっています。
複数の商品コードがある場合は複数行発行される形で構いません。

これは出来れば、なのですが注文者都道府県にも都道府県名(数字ではなくて)を入れたいと思っています。

お力を貸して頂けますでしょうか。
作成したSQL文は下記になります。

product_name as "商品コード",
"" as "商品名1",
"" as "商品名2",
"" as "単価",
"" as "数量",
total as "お支払い合計金額",
use_point as "割引(ポイント利用)",
REPLACE(charge,"","0") as "代引き手数料",
deliv_fee as "送料",
"" as "備考",
dtb_order.order_id as "注文番号",
customer_id as "顧客ID",
order_name01 as "注文者名1",
order_name02 as "注文者名2",
order_zip01 as "注文者郵便番号1",
order_zip02 as "注文者郵便番号2",
"" as "注文者都道府県",
order_addr01 as "注文者住所1",
order_addr02 as "注文者住所2",
order_tel01 as "電話番号1",
order_tel02 as "電話番号2",
order_tel03 as "電話番号3",
payment_method as "お支払い方法",
"" as "送り主",
"" as "送り主カナ",
concat(shipping_name01,shipping_name02) as "お届け先",
shipping_zip01 as "お届け先郵便番号1",
shipping_zip02 as "お届け先郵便番号2",
mtb_pref.name as "お届け先都道府県",
shipping_addr01 as "お届け先住所1",
shipping_addr02 as "お届け先住所2",
concat(shipping_tel01,shipping_tel02,shipping_tel03) as "お届け先電話番号",
REPLACE(
substring(shipping_date, 1, 10)
,"-","") as "お届け指定日",
REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(shipping_time,"20-21時","20"),"午前中","08"),"12-14時","12"),"14-16時","14"),"16-18時","16"),"18-20時","18") as "配送時間",
"" as "出荷場所コード",
"" as "温度帯区分"

FROM
mtb_pref , dtb_order JOIN dtb_shipping JOIN dtb_order_detail
ON
dtb_order.order_id=dtb_shipping.order_id=dtb_order_detail.order_id
WHERE
dtb_shipping.shipping_pref=mtb_pref.id

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EC-CUBEバージョン　2.11.5
PHPバージョン　5.2.17
DBバージョン　MySQL 5.1.51
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よろしくお願い致します。