CONCAT（）GROUP_CONCAT（）内

Question

は、私は以下のデータが発生している。そして、

SELECT 
    p.ID, 
    date(p.post_date) AS date, 
    i.order_item_name AS order_items 
    max(CASE WHEN o.meta_key = '_qty' AND i.order_item_id = o.order_item_id THEN o.meta_value END) AS qty 
FROM wp_posts AS p 
LEFT JOIN wp_woocommerce_order_items AS i ON p.ID = i.order_id 
LEFT JOIN wp_woocommerce_order_itemmeta AS o ON i.order_item_id = o.order_item_id 
WHERE p.ID = 1460 AND i.order_item_type = 'line_item' 
GROUP BY i.order_item_name 

この：このクエリによって

--------------------------------------------------------------------- 
| id |  date  |    order_items   | qty | 
--------------------------------------------------------------------- 
| 1460 | 2017-03-24 | Alfonso XO      | 2 | 
| 1460 | 2017-03-24 | Godiva Dark 85% Cacao    | 3 | 
| 1460 | 2017-03-24 | Godiva Gold Rigid Ballotin 14pcs | 5 | 
--------------------------------------------------------------------- 

この貫通

-------------------------------------------------------------- 
| id |  date  |    order_items   | 
-------------------------------------------------------------- 
| 1460 | 2017-03-24 | 2 Alfonso XO      | 
| 1460 | 2017-03-24 | 3 Godiva Dark 85% Cacao    | 
| 1460 | 2017-03-24 | 5 Godiva Gold Rigid Ballotin 14pcs | 
-------------------------------------------------------------- 

：

SELECT 
    p.ID, 
    date(p.post_date) AS date, 
    concat(max(CASE WHEN imeta.meta_key = '_qty' and items.order_item_id = imeta.order_item_id THEN imeta.meta_value END), ' ', items.order_item_name) as order_items 
FROM wp_posts AS p 
LEFT JOIN wp_woocommerce_order_items AS i ON p.ID = i.order_id 
LEFT JOIN wp_woocommerce_order_itemmeta AS o ON i.order_item_id = o.order_item_id 
WHERE p.ID = 1460 AND i.order_item_type = 'line_item' 
GROUP BY i.order_item_name 

私の問題は、どのように私は1つのカラムになるために自分のデータを得ることができ、次のとおりです。

-------------------------------------------------------------- 
| id |  date  |    order_items   | 
-------------------------------------------------------------- 
|  |    | 2 Alfonso XO      | 
| 1460 | 2017-03-24 | 3 Godiva Dark 85% Cacao    | 
|  |    | 5 Godiva Gold Rigid Ballotin 14pcs | 
-------------------------------------------------------------- 

私はgroup_concat()と私のconcat()を囲んでみましたが、私はエラーが表示さ：Invalid group functionを。正しい答えのためのサーGiorgos Betsosへ

UPDATE

ビッグ小道具。

これが今の私のクエリです：

SELECT ID, post_date, GROUP_CONCAT(order_items separator '\n') AS order_items, post_status, shipping_flight_number, letter_code, terminal, order_total, full_name 
FROM (
    SELECT 
    p.ID, 
    date(p.post_date) AS post_date, 
    p.post_status AS post_status, 
    concat(max(CASE 
       WHEN o.meta_key = '_qty' and 
         i.order_item_id = o.order_item_id 
        THEN o.meta_value 
       END), ' ', i.order_item_name) as order_items, 
    max(CASE WHEN pm.meta_key = 'shipping_flight_number' and p.ID = pm.post_id THEN pm.meta_value END) as shipping_flight_number, 
    substring_index(max(CASE WHEN pm.meta_key = 'shipping_flight_number' and p.ID = pm.post_id THEN pm.meta_value END)," ",1) as letter_code, 
    (select terminal_id from wp_shipping_airlines where letter_code = substring_index(max(CASE WHEN pm.meta_key = 'shipping_flight_number' and p.ID = pm.post_id THEN pm.meta_value END)," ",1)) as terminal, 
    max(CASE WHEN pm.meta_key = '_order_total' and p.ID = pm.post_id THEN pm.meta_value END) as order_total, 
    concat(max(CASE WHEN pm.meta_key = '_billing_first_name' and p.ID = pm.post_id THEN pm.meta_value END), ' ', max(CASE WHEN pm.meta_key = '_billing_last_name' and p.ID = pm.post_id THEN pm.meta_value END)) as full_name 
FROM wp_posts AS p 
LEFT JOIN wp_postmeta pm on p.ID = pm.post_id 
LEFT JOIN wp_woocommerce_order_items AS i ON p.ID = i.order_id 
LEFT JOIN wp_woocommerce_order_itemmeta AS o ON i.order_item_id = o.order_item_id 
WHERE p.post_type = 'shop_order' AND i.order_item_type = 'line_item' AND p.post_status != 'trash' 
GROUP BY i.order_item_name, p.ID) AS t 
GROUP BY ID, post_date, shipping_flight_number, letter_code, terminal, order_total, full_name 

はしかし、もう少し私のクエリを微調整、I別の問題時：

1.私はから新しく生成された1上の別のデータを連結してみました新しいクエリ：

----------------------------------------------------------------------- 
| id |  date  |     order_items     | 
----------------------------------------------------------------------- 
|  |    | 2 Alfonso XO (2300551)      | 
| 1460 | 2017-03-24 | 3 Godiva Dark 85% Cacao (2657010)   | 
|  |    | 5 Godiva Gold Rigid Ballotin 14pcs (2421181) | 
----------------------------------------------------------------------- 

括弧内の数字はSKUと呼ばれ、wp_postmetaテーブルにありますが、 p.IDとp.post_idBUTとp.post_type = 'product'で接続されています。

concat()をconcat_ws()に置き換えようとしましたが、運がありませんでした。

SELECT ID, post_date, GROUP_CONCAT(order_items separator '\n') AS order_items, post_status, shipping_flight_number, letter_code, terminal, order_total, full_name 
FROM (
    SELECT 
    p.ID, 
    date(p.post_date) AS post_date, 
    p.post_status AS post_status, 
    concat_ws(' ', max(CASE 
       WHEN o.meta_key = '_qty' and 
         i.order_item_id = o.order_item_id 
        THEN o.meta_value 
       END), i.order_item_name, ' -- ', max(CASE WHEN pm.meta_key = '_sku' and p.ID = pm.post_id and p.post_type = 'product' THEN pm.meta_value END)) as order_items, 
    max(CASE WHEN pm.meta_key = 'shipping_flight_number' and p.ID = pm.post_id THEN pm.meta_value END) as shipping_flight_number, 
    substring_index(max(CASE WHEN pm.meta_key = 'shipping_flight_number' and p.ID = pm.post_id THEN pm.meta_value END)," ",1) as letter_code, 
    (select terminal_id from wp_shipping_airlines where letter_code = substring_index(max(CASE WHEN pm.meta_key = 'shipping_flight_number' and p.ID = pm.post_id THEN pm.meta_value END)," ",1)) as terminal, 
    max(CASE WHEN pm.meta_key = '_order_total' and p.ID = pm.post_id THEN pm.meta_value END) as order_total, 
    concat(max(CASE WHEN pm.meta_key = '_billing_first_name' and p.ID = pm.post_id THEN pm.meta_value END), ' ', max(CASE WHEN pm.meta_key = '_billing_last_name' and p.ID = pm.post_id THEN pm.meta_value END)) as full_name 
FROM wp_posts AS p 
LEFT JOIN wp_postmeta pm on p.ID = pm.post_id 
LEFT JOIN wp_woocommerce_order_items AS i ON p.ID = i.order_id 
LEFT JOIN wp_woocommerce_order_itemmeta AS o ON i.order_item_id = o.order_item_id 
WHERE p.post_type = 'shop_order' AND i.order_item_type = 'line_item' AND p.post_status != 'trash' 
GROUP BY i.order_item_name, p.ID) AS t 
GROUP BY ID, post_date, shipping_flight_number, letter_code, terminal, order_total, full_name 

ご協力いただき誠にありがとうございます。

ありがとうございました。

-Eli

Answer 1

これは動作するはずです：

SELECT ID, date, GROUP_CONCAT(order_items) AS order_items 
FROM (
    SELECT 
     p.ID, 
     date(p.post_date) AS date, 
     concat(max(CASE 
        WHEN imeta.meta_key = '_qty' and 
          items.order_item_id = imeta.order_item_id 
         THEN imeta.meta_value 
        END), ' ', items.order_item_name) as order_items 
FROM wp_posts AS p 
LEFT JOIN wp_woocommerce_order_items AS i ON p.ID = i.order_id 
LEFT JOIN wp_woocommerce_order_itemmeta AS o ON i.order_item_id = o.order_item_id 
WHERE p.ID = 1460 AND i.order_item_type = 'line_item' 
GROUP BY i.order_item_name) AS t 
GROUP BY ID, date 

注：GROUP_CONCAT(order_items SEPARATOR '\n')：あなたは次のように、GROUP_CONCATの内側にあなたが好きなのセパレータを追加することができます。