Агрегирование продаж, количество транзакций по возрасту и полу, чтобы получить сводку

Question

 SELECT CASE 
     WHEN age BETWEEN 1 AND 25 THEN '1-25' 
     WHEN age BETWEEN 26 AND 35 THEN '26-35' 
     WHEN age BETWEEN 36 AND 45 THEN '36-45' 
     WHEN age BETWEEN 46 AND 55 THEN '46-55' 
     WHEN age >= 56 THEN '56+' 
   END  AS Age_Range, 
   Sum(CASE 
         WHEN gender = 'Male' THEN 1 
         ELSE 0 
       END) AS "M Count", 
   Sum(CASE 
         WHEN gender = 'Female' THEN 1 
         ELSE 0 
       END) AS "F Count", 
   Sum(CASE 
         WHEN gender = 'Unk' THEN 1 
         ELSE 0 
       END) AS "Unk Count" 
FROM   dm_owner.v_individualbrand 
WHERE  Trunc(txn_date) BETWEEN '01-JAN-18' AND '31-DEC-18' 
   AND brandcode = 'HT' 
GROUP  BY CASE 
        WHEN age BETWEEN 1 AND 25 THEN '1-25' 
        WHEN age BETWEEN 26 AND 35 THEN '26-35' 
        WHEN age BETWEEN 36 AND 45 THEN '36-45' 
        WHEN age BETWEEN 46 AND 55 THEN '46-55' 
        WHEN age >= 56 THEN '56+' 
      END 
 ORDER  BY age_range; 

Я пытаюсь добавить еще 2 столбца, которые показывают количество транзакций и общий объем продаж.Моя таблица должна выглядеть так:

Answer 1

Вы хотите расширить свой условный агрегат.Ваши текущие значения могут показаться значениями транзакций, если только это не отдельный столбец в таблице.

Запрос будет выглядеть следующим образом:

SELECT (CASE WHEN age BETWEEN 1 AND 25 THEN '1-25' 
             WHEN age BETWEEN 26 AND 35 THEN '26-35' 
             WHEN age BETWEEN 36 AND 45 THEN '36-45' 
             WHEN age BETWEEN 46 AND 55 THEN '46-55' 
             WHEN age >= 56 THEN '56+' 
        END) as Age_Range, 
       Sum(CASE WHEN gender = 'Male' THEN 1 ELSE 0 END) AS "M Count",
       Sum(CASE WHEN gender = 'Male' THEN sales ELSE 0 END) AS "M Sales",
       Sum(CASE WHEN gender = 'Female' THEN 1 ELSE 0 END) AS "F Count", 
       Sum(CASE WHEN gender = 'Female' THEN sales ELSE 0 END) AS "F Sales", 
       Sum(CASE WHEN gender = 'Unk' THEN 1 ELSE 0 END) AS "Unk Count" 
       Sum(CASE WHEN gender = 'Unk' THEN sales ELSE 0 END) AS "Unk Sales" 
FROM dm_owner.v_individualbrand 
WHERE txn_date >= DATE '2018-01-01' AND
      txn_date < DATE '2019-01-01' AND
      brandcode = 'HT' 
GROUP BY (CASE WHEN age BETWEEN 1 AND 25 THEN '1-25' 
               WHEN age BETWEEN 26 AND 35 THEN '26-35' 
               WHEN age BETWEEN 36 AND 45 THEN '36-45' 
               WHEN age BETWEEN 46 AND 55 THEN '46-55' 
               WHEN age >= 56 THEN '56+' 
          END)
ORDER BY MIN(age);