月ごとの合計結果を表示するMysqlの複数選択クエリ

Question

毎月1から12のような選択クエリを使用したいと思います。私はインターネットのサブクエリのフォーマットから少しこれのような検索したが、私のクエリによると正しいフォーマットではありません。このクエリを1ヶ月間実行すると、正しい結果が表示されます。私はあなたが正しい道にしている。この SQL Fiddle

Html table Format

SELECT 
(SELECT SUM(`current_sales`) FROM `orders` WHERE YEAR(order_date) ='2017' AND MONTH(order_date) ='10' GROUP BY pro_id) AS October, 
(SELECT SUM(`current_sales`) FROM `orders` WHERE YEAR(order_date) ='2017' AND MONTH(order_date) ='11' GROUP BY pro_id) AS November, 
(SELECT SUM(`current_sales`) FROM `orders`WHERE YEAR(order_date) ='2017' AND MONTH(order_date) ='12' GROUP BY pro_id) AS December 

Answer 1

ようなHTMLテーブルに結果を表示したいです。しかし、sum()を毎月current_salesにしたいので、サブクエリではGroup byを使用しないでください。複数の行が返されるためです。代わりに、同じpro_idの行をフェッチするためにwhereという条件を入力してください。クエリは現在、Group by句を使用して実行されています。

次のクエリは動作します：

select tmp.pro_id, 
     tmp.product_name, 
     tmp.nsp,  
     tmp.Jan, 
     tmp.Feb, 
     tmp.Mar, 
     tmp.Apr, 
     (tmp.Jan+tmp.Feb+tmp.Mar+tmp.Apr) as Q1, 
     tmp.May, 
     tmp.Jun, 
     tmp.Jul, 
     tmp.Aug, 
     (tmp.May+tmp.Jun+tmp.Jul+tmp.Aug) as Q2, 
     tmp.Sep, 
     tmp.Oct, 
     tmp.Nov, 
     tmp.`Dec`, 
     (tmp.Sep+tmp.Oct+tmp.Nov+tmp.`Dec`) as Q3 
From  
( 
SELECT o.pro_id, 
     p.product_name, 
     p.nsp, 
(case when coalesce(sum(month(order_date) = 1),0) <> 0 
     then 
      (SELECT SUM(`current_sales`) FROM `orders` WHERE pro_id = o.pro_id and YEAR(order_date) ='2017' AND MONTH(order_date) ='1') 
else 0 
end 
) as Jan, 
(case when coalesce(sum(month(order_date) = 2),0) <> 0 
     then 
      (SELECT SUM(`current_sales`) FROM `orders` WHERE pro_id = o.pro_id and YEAR(order_date) ='2017' AND MONTH(order_date) ='2') 
else 0 
end 
) as Feb, 
(case when coalesce(sum(month(order_date) = 3),0) <> 0 
     then 
      (SELECT SUM(`current_sales`) FROM `orders` WHERE pro_id = o.pro_id and YEAR(order_date) ='2017' AND MONTH(order_date) ='3') 
else 0 
end 
) as Mar, 
(case when coalesce(sum(month(order_date) = 4),0) <> 0 
     then 
      (SELECT SUM(`current_sales`) FROM `orders` WHERE pro_id = o.pro_id and YEAR(order_date) ='2017' AND MONTH(order_date) ='4') 
else 0 
end 
) as Apr, 
(case when coalesce(sum(month(order_date) = 5),0) <> 0 
     then 
      (SELECT SUM(`current_sales`) FROM `orders` WHERE pro_id = o.pro_id and YEAR(order_date) ='2017' AND MONTH(order_date) ='5') 
else 0 
end 
) as May, 
(case when coalesce(sum(month(order_date) = 6),0) <> 0 
     then 
      (SELECT SUM(`current_sales`) FROM `orders` WHERE pro_id = o.pro_id and YEAR(order_date) ='2017' AND MONTH(order_date) ='6') 
else 0 
end 
) as Jun, 
(case when coalesce(sum(month(order_date) = 7),0) <> 0 
     then 
      (SELECT SUM(`current_sales`) FROM `orders` WHERE pro_id = o.pro_id and YEAR(order_date) ='2017' AND MONTH(order_date) ='7') 
else 0 
end 
) as Jul, 
(case when coalesce(sum(month(order_date) = 8),0) <> 0 
     then 
      (SELECT SUM(`current_sales`) FROM `orders` WHERE pro_id = o.pro_id and YEAR(order_date) ='2017' AND MONTH(order_date) ='8') 
else 0 
end 
) as Aug, 
(case when coalesce(sum(month(order_date) = 9),0) <> 0 
     then 
      (SELECT SUM(`current_sales`) FROM `orders` WHERE pro_id = o.pro_id and YEAR(order_date) ='2017' AND MONTH(order_date) ='9') 
else 0 
end 
) as Sep, 
(case when coalesce(sum(month(order_date) = 10),0) <> 0 
     then 
      (SELECT SUM(`current_sales`) FROM `orders` WHERE pro_id = o.pro_id and YEAR(order_date) ='2017' AND MONTH(order_date) ='10') 
else 0 
end 
) as Oct, 
(case when coalesce(sum(month(order_date) = 11),0) <> 0 
     then 
      (SELECT SUM(`current_sales`) FROM `orders` WHERE pro_id = o.pro_id and YEAR(order_date) ='2017' AND MONTH(order_date) ='11') 
else 0 
end 
) as Nov, 
(case when coalesce(sum(month(order_date) = 12),0) <> 0 
     then 
      (SELECT SUM(`current_sales`) FROM `orders` WHERE pro_id = o.pro_id and YEAR(order_date) ='2017' AND MONTH(order_date) ='12') 
else 0 
end 
) as `Dec` 
from products p 
inner join orders o 
on p.pro_id = o.pro_id 
group by o.pro_id 
)tmp 
group by tmp.pro_id 
; 

Click here for DEMO

、私はGroup_concat()のようなMySQLの多くの内蔵機能を備えた巨大なクエリを持っているあなたのタスクのための別のアプローチ、Substring_Index()などがありますが

別のアプローチをご覧ください：

select tmp2.pro_id, 
     tmp2.product_name, 
     tmp2.nsp, 
     tmp2.Jan, 
     tmp2.Feb, 
     tmp2.Mar, 
     tmp2.Apr, 
     (tmp2.Jan+tmp2.Feb+tmp2.Mar+tmp2.Apr) as Q1, 
     tmp2.May, 
     tmp2.Jun, 
     tmp2.Jul, 
     tmp2.Aug, 
     (tmp2.May+tmp2.Jun+tmp2.Jul+tmp2.Aug) as Q2, 
     tmp2.Sep, 
     tmp2.Oct, 
     tmp2.Nov, 
     tmp2.`Dec`, 
     (tmp2.Sep+tmp2.Oct+tmp2.Nov+tmp2.`Dec`) as Q3 
from 
(
select tmp.pro_id, 
     tmp.product_name, 
     tmp.nsp,    
(case when coalesce(sum(tmp.month=1),0) <> 0 
     then 
     substring_index 
     (
      substring_index 
      (
      Group_concat(tmp.total order by tmp.month separator ','), 
      ',',    
       (find_in_set 
        (1, 
        Group_concat(tmp.month order by tmp.month separator ',') 
        ) 
       ) 
      ), 
      ',', 
      -1     
     ) 
    else 0 
end 
) as Jan, 
(case when coalesce(sum(tmp.month=2),0) <> 0 
     then 
     substring_index 
     (
      substring_index 
      (
      Group_concat(tmp.total order by tmp.month separator ','), 
      ',',    
       (find_in_set 
        (2, 
        Group_concat(tmp.month order by tmp.month separator ',') 
        ) 
       ) 
      ), 
      ',', 
      -1     
     ) 
    else 0 
end 
) as Feb, 
(case when coalesce(sum(tmp.month=3),0) <> 0 
     then 
     substring_index 
     (
      substring_index 
      (
      Group_concat(tmp.total order by tmp.month separator ','), 
      ',',    
       (find_in_set 
        (3, 
        Group_concat(tmp.month order by tmp.month separator ',') 
        ) 
       ) 
      ), 
      ',', 
      -1     
     ) 
    else 0 
end 
) as Mar, 
(case when coalesce(sum(tmp.month=4),0) <> 0 
     then 
     substring_index 
     (
      substring_index 
      (
      Group_concat(tmp.total order by tmp.month separator ','), 
      ',',    
       (find_in_set 
        (4, 
        Group_concat(tmp.month order by tmp.month separator ',') 
        ) 
       ) 
      ), 
      ',', 
      -1     
     ) 
    else 0 
end 
) as Apr, 
(case when coalesce(sum(tmp.month=5),0) <> 0 
     then 
     substring_index 
     (
      substring_index 
      (
      Group_concat(tmp.total order by tmp.month separator ','), 
      ',',    
       (find_in_set 
        (5, 
        Group_concat(tmp.month order by tmp.month separator ',') 
        ) 
       ) 
      ), 
      ',', 
      -1     
     ) 
    else 0 
end 
) as May, 
(case when coalesce(sum(tmp.month=6),0) <> 0 
     then 
     substring_index 
     (
      substring_index 
      (
      Group_concat(tmp.total order by tmp.month separator ','), 
      ',',    
       (find_in_set 
        (6, 
        Group_concat(tmp.month order by tmp.month separator ',') 
        ) 
       ) 
      ), 
      ',', 
      -1     
     ) 
    else 0 
end 
) as Jun, 
(case when coalesce(sum(tmp.month=7),0) <> 0 
     then 
     substring_index 
     (
      substring_index 
      (
      Group_concat(tmp.total order by tmp.month separator ','), 
      ',',    
       (find_in_set 
        (7, 
        Group_concat(tmp.month order by tmp.month separator ',') 
        ) 
       ) 
      ), 
      ',', 
      -1     
     ) 
    else 0 
end 
) as Jul, 
(case when coalesce(sum(tmp.month=8),0) <> 0 
     then 
     substring_index 
     (
      substring_index 
      (
      Group_concat(tmp.total order by tmp.month separator ','), 
      ',',    
       (find_in_set 
        (8, 
        Group_concat(tmp.month order by tmp.month separator ',') 
        ) 
       ) 
      ), 
      ',', 
      -1     
     ) 
    else 0 
end 
) as Aug, 
(case when coalesce(sum(tmp.month=9),0) <> 0 
     then 
     substring_index 
     (
      substring_index 
      (
      Group_concat(tmp.total order by tmp.month separator ','), 
      ',',    
       (find_in_set 
        (9, 
        Group_concat(tmp.month order by tmp.month separator ',') 
       ) 
       ) 
      ), 
      ',', 
      -1     
     ) 
    else 0 
end 
) as Sep, 
(case when coalesce(sum(tmp.month=10),0) <> 0 
     then 
     substring_index 
     (
      substring_index 
      (
      Group_concat(tmp.total order by tmp.month separator ','), 
      ',',    
       (find_in_set 
        (10, 
        Group_concat(tmp.month order by tmp.month separator ',') 
        ) 
       ) 
      ), 
      ',', 
      -1     
     ) 
    else 0 
end 
) as Oct,      
(case when coalesce(sum(tmp.month=11),0) <> 0 
     then 
     substring_index 
     (
      substring_index 
      (
      Group_concat(tmp.total order by tmp.month separator ','), 
      ',',    
       (find_in_set 
        (11, 
        Group_concat(tmp.month order by tmp.month separator ',') 
        ) 
       ) 
      ), 
      ',', 
      -1     
     ) 
    else 0 
end 
) as Nov, 
(case when coalesce(sum(tmp.month=12),0) <> 0 
     then 
     substring_index 
     (
      substring_index 
      (
      Group_concat(tmp.total order by tmp.month separator ','), 
      ',',    
       (find_in_set 
        (12, 
        Group_concat(tmp.month order by tmp.month separator ',') 
        ) 
       ) 
      ), 
      ',', 
      -1     
     ) 
    else 0 
end 
) as `Dec` 
from  
(
select o.pro_id, 
     p.product_name, 
     p.nsp, 
     sum(o.current_sales) as total, 
     month(order_date) as month 
from 
products p 
inner join orders o 
on p.pro_id = o.pro_id 
group by o.pro_id,month(order_date) 
)tmp 
group by tmp.pro_id 
)tmp2 
group by tmp2.pro_id 
; 

Click here for Demo

ここで、実際のデータに対して両方のクエリを実行し、実行時間が短いものを選択できます。

希望すると助かります！