我正在使用sql server 2008:
我有一个查询,计算每天的任务总数和已完成任务总数
我需要每周使用相同的逻辑(几天内)。 我没有必要每天都有记录(这有关系吗?,如果是这样的话,我怎样才能插入空日记录?)。
以下是每天计算任务的当前查询:
SELECT
DATEADD(D, 0, DATEDIFF(D, 0, T.TaskEndDate)) AS 'EndDate',
COUNT(T.TaskID)NumOfTasks,
COUNT(CASE WHEN T.TaskRecordsStatus = 2 THEN T.TaskID END) NumOfCompleteTasks
FROM
dwh.Bks_DWH_TaskRecords_V1 T
GROUP BY
DATEADD(D, 0, DATEDIFF(D, 0, T.TaskEndDate))
ORDER BY
DATEADD(D, 0, DATEDIFF(D, 0, T.TaskEndDate)) DESC
这是查询输出(几行作为样本):
End Date NumOfTasks NumOfCompleteTasks
2015-06-27 00:00:00.000 1 0
2013-09-17 00:00:00.000 1 0
2013-02-11 00:00:00.000 1 1
2013-02-07 00:00:00.000 4 0
2013-02-06 00:00:00.000 1 0
2013-02-04 00:00:00.000 1 0
2013-01-20 00:00:00.000 2 0
2013-01-19 00:00:00.000 1 0
2013-01-18 00:00:00.000 2 0
2013-01-17 00:00:00.000 5 0
这是必需的结果:
End Date NumOfTasks NumOfCompleteTasks
2013-01-01 00:00:00.000 10 0
2013-01-07 00:00:00.000 6 1
2013-01-14 00:00:00.000 0 0
2013-01-21 00:00:00.000 0 0
2013-01-28 00:00:00.000 7 3
2013-02-05 00:00:00.000 2 1
2013-02-12 00:00:00.000 0 0
答案 0 :(得分:1)
这应该有效:
SELECT EndDate = Dateadd(week, Datediff(week, 0, T.TaskEndDate), 0),
NumOfTasks = COUNT(T.TaskID),
NumOfCompleteTasks = COUNT(CASE WHEN T.TaskRecordsStatus = 2 THEN T.TaskID END)
FROM
dwh.Bks_DWH_TaskRecords_V1 T
GROUP BY
Dateadd(week, Datediff(week, 0, T.TaskEndDate), 0)
ORDER BY
Dateadd(week, Datediff(week, 0, T.TaskEndDate), 0) DESC
带有简化数据的
这假设您希望星期一作为一周的第一天,因为日期0是1900-01-01
星期一。
答案 1 :(得分:0)
你试过用吗?
GROUP BY DAYOFWEEK(DATEADD(D, 0, DATEDIFF(D, 0, T.TaskEndDate)))
答案 2 :(得分:0)
尝试
SELECT
DATEADD(D, DATEDIFF(D, T.TaskEndDate, 0), 0) AS 'EndDate',
COUNT(T.TaskID) NumOfTasks,
SUM(CASE WHEN T.TaskRecordsStatus = 2 THEN 1 ELSE 0 END) NumOfCompleteTasks
FROM
dwh.Bks_DWH_TaskRecords_V1 T
GROUP BY
DATEADD(D, DATEDIFF(D, T.TaskEndDate, 0), 0)
ORDER BY
DATEADD(D, DATEDIFF(D, T.TaskEndDate, 0), 0) DESC
对于每周版本更改D,每个DATEADD使用周