[英]How to select only those records which are present in given all DATE range
我想 select 只有所有日期都存在重復數據計數的數據。
示例我的表數據是:
用戶身份 | row_created |
---|---|
8SRWS3hMR | 2020-12-14 00:13:31 |
8SRWS3hMR | 2020-12-14 00:35:06 |
8SRWS3hMR | 2020-12-14 12:11:37 |
8SRWS3hMR | 2020-12-14 13:16:27 |
8SRWS3hMR | 2020-12-14 16:30:00 |
8SRWS3hMR | 2020-12-14 19:25:11 |
8SRWS3hMR | 2020-12-14 19:27:07 |
8SRWS3hMR | 2020-12-15 17:14:06 |
8SRWS3hMR | 2020-12-16 14:53:54 |
如果我 select 的日期范圍在2020-12-14
到2020-12-17
之間,那么 output 應該是 Z37A6259CC0C1DAE299A7866489DFF0BD。
如果我 select 日期范圍在2020-12-14
到2020-12-16
之間,那么 output 應該低於
用戶身份 | 全部的 | row_created |
---|---|---|
8SRWS3hMR | 7 | 2020-12-14 00:13:31 |
8SRWS3hMR | 1 | 2020-12-15 17:14:06 |
8SRWS3hMR | 1 | 2020-12-16 14:53:54 |
我試過下面的查詢
select user_id, count(user_id) as total, row_created from reward
where user_id = '8SRWS3hMR' AND DATE(row_created) BETWEEN '2020-12-14' AND '2020-12-17'
group by DATE(row_created);
但根據我的要求, output 應該是 null 因為在BETWEEN
日期范圍內我已經通過'2020-12-17'
。
請忽略語法錯誤。
您可以按如下方式使用HAVING
子句:
SELECT USER_ID,
COUNT(USER_ID) AS TOTAL,
ROW_CREATED
FROM REWARD
WHERE USER_ID = '8SRWS3hMR'
AND DATE(ROW_CREATED) BETWEEN '2020-12-14' AND '2020-12-17'
GROUP BY DATE(ROW_CREATED)
HAVING COUNT(DISTINCT DATE(ROW_CREATED)) = datediff('2020-12-17', '2020-12-14') + 1;
- 更新
SELECT * FROM
(SELECT USER_ID,
COUNT(USER_ID) AS TOTAL,
ROW_CREATED,
COUNT(DISTINCT DATE(ROW_CREATED)) OVER (PARTITION BY USER_ID) AS CNT
FROM REWARD
WHERE USER_ID = '8SRWS3hMR'
AND DATE(ROW_CREATED) BETWEEN '2020-12-14' AND '2020-12-17'
GROUP BY USER_ID, DATE(ROW_CREATED)
) T WHERE CNT = datediff('2020-12-17', '2020-12-14') + 1
這有點復雜,因為您需要按日期匯總。 您可以使用 window 函數:
SELECT r.*
FROM (SELECT USER_ID, DATE(ROW_CREATED) as date, COUNT(*) AS TOTAL,
MIN(ROW_CREATED) as ROW_CREATED,
COUNT(*) OVER (PARTITION BY USER_ID) as num_days,
DATEDIFF(x.end_date, x.start_date) + 1 AS total_days
FROM REWARD R CROSS JOIN
(SELECT DATE('2020-12-14') as START_DATE, DATE('2020-12-17') as END_DATE
) params
WHERE USER_ID = '8SRWS3hMR' AND
ROW_CREATED >= x.start_date AND
ROW_CREATE <= x.end_date + interval 1 day
GROUP BY DATE(ROW_CREATED)
) R
WHERE num_days = total_days;
子查詢按天匯總。 它包括兩個方面:
USER_ID
的不同天數。 為了避免多次輸入相同的日期,這些日期在子查詢中定義。 另請注意,日期比較已重新安排。 不使用DATE()
function,而是使用不等式。 這使得表達式與索引更兼容。
select user_id, count(user_id) as total, row_created from reward where user_id = '8SRWS3hMR' AND DATE(row_created) >= '2020-12-14' AND DATE(row_created) <= '2020-12-17' group by DATE (row_created) 有 count(user_id) >= DATEDIFF(row_created, '2020-12-17')
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