我有这张桌子
date week_day 1-02-2018 4 2-02-2018 5 3-02-2018 6 4-02-2018 7 5-02-2018 1 6-02-2018 2 7-02-2018 3 ................ 26-02-2018 1 27-02-2018 2 28-02-2018 3
我需要以下面的形式进入SQL不完整的几周：
date week_day 0 1 0 2 0 3 1-02-2018 4 2-02-2018 5 3-02-2018 6 4-02-2018 7 5-02-2018 1 6-02-2018 2 7-02-2018 3 ................ 26-02-2018 1 27-02-2018 2 28-02-2018 3 0 4 0 5 0 6 0 7
答案 0 :(得分：0)
这就是你要找的东西：
DECLARE @FirstDate date =
(
SELECT MIN(DATEADD(DAY, (week_day - 1) * -1, [date]))
FROM YourTable
)
DECLARE @LastDate date =
(
SELECT MAX(DATEADD(DAY, 7 - week_day, [date]))
FROM YourTable
)
;
WITH cteDates
AS
(
SELECT
@FirstDate [date]
, 1 week_day
UNION ALL
SELECT
DATEADD(DAY, 1, [date])
, CASE WHEN week_day + 1 > 7 THEN 1 ELSE week_day + 1 END
FROM cteDates
WHERE [date] < @LastDate
)
SELECT
T.[date]
, C.week_day
FROM
cteDates C
LEFT JOIN YourTable T ON
C.[date] = T.[date]
AND C.week_day = T.week_day
答案 1 :(得分：0)
主要关键是获取（年，月，周）和工作日的笛卡尔联接，然后在相关日期进行左联接。第二个关键是调整星期一到一周的开始。
这是一个适用于MySQL的示例。它有一个我尚未解决的边缘情况。一个月的最后一天以星期日结束的情况。在这种情况下，该月末与下一个月的开始之间有7个零。
select * from (
select cartesian.`year`
, cartesian.`month`
, cartesian.`week`
, coalesce(dates.`date`,0) `date`, cartesian.weekday+1 week_day from (
/* get distinct cartesian results for the (year, month, week) and weekday */
select `year`
, `month`
, case weekday when 6 then `week` - 1 else `week` end `week`
, weekday
from (
select distinct year(`date`) `year`
, month(`date`) `month`
, week(`date`) `week`
, weeks.weekday
from date_48361641, (
select 0 weekday union
select 1 weekday union
select 2 weekday union
select 3 weekday union
select 4 weekday union
select 5 weekday union
select 6 weekday
) weeks
) weeks
-- order by `year`, `month`, `week`, `weekday`
) cartesian
left join (
/* adjust for edge case of week 0 */
select `date`
, `year`
, `month`
, `week`
, weekday
from (
/* adjust the week to allow for Monday start of week*/
select `date`
, `year`
, `month`
, case weekday when 6 then `week` - 1 else `week` end `week`
, weekday
from (
select `date`
, year(`date`) `year`
, month(`date`) `month`
, week(`date`) `week`
, weekday(`date`) weekday
from date_48361641 dates
-- order by `date`
) dates
) dates
) dates
on dates.`year` = cartesian.`year`
and dates.`month` = cartesian.`month`
and dates.`week` = cartesian.`week`
and dates.`weekday` = cartesian.`weekday`
) results
where results.`week` > -1
order by
results.`year`
, results.`month`
, results.`week`
, results.`week_day`
- 结果
year month week date week_day
2016 1 0 0 1
2016 1 0 0 2
2016 1 0 0 3
2016 1 0 0 4
2016 1 0 2016-01-01 5
2016 1 0 2016-01-02 6
2016 1 0 2016-01-03 7
...
2016 1 4 2016-01-25 1
2016 1 4 2016-01-26 2
2016 1 4 2016-01-27 3
2016 1 4 2016-01-28 4
2016 1 4 2016-01-29 5
2016 1 4 2016-01-30 6
2016 1 4 2016-01-31 7
2016 1 5 0 1
2016 1 5 0 2
2016 1 5 0 3
2016 1 5 0 4
2016 1 5 0 5
2016 1 5 0 6
2016 2 4 0 7
2016 2 5 2016-02-01 1
2016 2 5 2016-02-02 2
2016 2 5 2016-02-03 3
2016 2 5 2016-02-04 4
2016 2 5 2016-02-05 5
2016 2 5 2016-02-06 6
2016 2 5 2016-02-07 7
...
2016 2 9 2016-02-29 1
2016 2 9 0 2
2016 2 9 0 3
2016 2 9 0 4
2016 2 9 0 5
2016 2 9 0 6
2016 3 8 0 7
2016 3 9 0 1
2016 3 9 2016-03-01 2
2016 3 9 2016-03-02 3
2016 3 9 2016-03-03 4
2016 3 9 2016-03-04 5
2016 3 9 2016-03-05 6
2016 3 9 2016-03-06 7
...
2016 3 13 2016-03-28 1
2016 3 13 2016-03-29 2
2016 3 13 2016-03-30 3
2016 3 13 2016-03-31 4
2016 3 13 0 5
2016 3 13 0 6
2016 4 12 0 7
2016 4 13 0 1
2016 4 13 0 2
2016 4 13 0 3
2016 4 13 0 4
2016 4 13 2016-04-01 5
2016 4 13 2016-04-02 6
2016 4 13 2016-04-03 7
...
2016 5 22 2016-05-30 1
2016 5 22 2016-05-31 2
2016 5 22 0 3
2016 5 22 0 4
2016 5 22 0 5
2016 5 22 0 6
2016 6 21 0 7
2016 6 22 0 1
2016 6 22 0 2
2016 6 22 2016-06-01 3
2016 6 22 2016-06-02 4
2016 6 22 2016-06-03 5
2016 6 22 2016-06-04 6
2016 6 22 2016-06-05 7
...
2016 6 26 2016-06-27 1
2016 6 26 2016-06-28 2
2016 6 26 2016-06-29 3
2016 6 26 2016-06-30 4
2016 6 26 0 5
2016 6 26 0 6
2016 7 25 0 7
2016 7 26 0 1
2016 7 26 0 2
2016 7 26 0 3
2016 7 26 0 4
2016 7 26 2016-07-01 5
2016 7 26 2016-07-02 6
2016 7 26 2016-07-03 7
...
2016 7 30 2016-07-25 1
2016 7 30 2016-07-26 2
2016 7 30 2016-07-27 3
2016 7 30 2016-07-28 4
2016 7 30 2016-07-29 5
2016 7 30 2016-07-30 6
2016 7 30 2016-07-31 7
2016 7 31 0 1
2016 7 31 0 2
2016 7 31 0 3
2016 7 31 0 4
2016 7 31 0 5
2016 7 31 0 6
2016 8 30 0 7
2016 8 31 2016-08-01 1
2016 8 31 2016-08-02 2
2016 8 31 2016-08-03 3
2016 8 31 2016-08-04 4
2016 8 31 2016-08-05 5
2016 8 31 2016-08-06 6
2016 8 31 2016-08-07 7
...
2016 8 35 2016-08-29 1
2016 8 35 2016-08-30 2
2016 8 35 2016-08-31 3
2016 8 35 0 4
2016 8 35 0 5
2016 8 35 0 6
2016 9 34 0 7
2016 9 35 0 1
2016 9 35 0 2
2016 9 35 0 3
2016 9 35 2016-09-01 4
2016 9 35 2016-09-02 5
2016 9 35 2016-09-03 6
2016 9 35 2016-09-04 7
...
2016 9 39 2016-09-26 1
2016 9 39 2016-09-27 2
2016 9 39 2016-09-28 3
2016 9 39 2016-09-29 4
2016 9 39 2016-09-30 5
2016 9 39 0 6
2016 10 38 0 7
2016 10 39 0 1
2016 10 39 0 2
2016 10 39 0 3
2016 10 39 0 4
2016 10 39 0 5
2016 10 39 2016-10-01 6
2016 10 39 2016-10-02 7
...
2016 10 44 2016-10-31 1
2016 10 44 0 2
2016 10 44 0 3
2016 10 44 0 4
2016 10 44 0 5
2016 10 44 0 6
2016 11 43 0 7
2016 11 44 0 1
2016 11 44 2016-11-01 2
2016 11 44 2016-11-02 3
2016 11 44 2016-11-03 4
2016 11 44 2016-11-04 5
2016 11 44 2016-11-05 6
2016 11 44 2016-11-06 7
...
2016 11 48 2016-11-28 1
2016 11 48 2016-11-29 2
2016 11 48 2016-11-30 3
2016 11 48 0 4
2016 11 48 0 5
2016 11 48 0 6
2016 12 47 0 7
2016 12 48 0 1
2016 12 48 0 2
2016 12 48 0 3
2016 12 48 2016-12-01 4
2016 12 48 2016-12-02 5
2016 12 48 2016-12-03 6
2016 12 48 2016-12-04 7
2016 12 49 2016-12-05 1
2016 12 49 2016-12-06 2
2016 12 49 2016-12-07 3
2016 12 49 2016-12-08 4
2016 12 49 2016-12-09 5
2016 12 49 2016-12-10 6
2016 12 49 2016-12-11 7
2016 12 50 2016-12-12 1
2016 12 50 2016-12-13 2
2016 12 50 2016-12-14 3
2016 12 50 2016-12-15 4
2016 12 50 2016-12-16 5
2016 12 50 2016-12-17 6
2016 12 50 2016-12-18 7
2016 12 51 2016-12-19 1
2016 12 51 2016-12-20 2
2016 12 51 2016-12-21 3
2016 12 51 2016-12-22 4
2016 12 51 2016-12-23 5
2016 12 51 2016-12-24 6
2016 12 51 2016-12-25 7
2016 12 52 2016-12-26 1
2016 12 52 2016-12-27 2
2016 12 52 2016-12-28 3
2016 12 52 2016-12-29 4
2016 12 52 2016-12-30 5
2016 12 52 2016-12-31 6
2017 1 0 2017-01-01 7
2017 1 1 2017-01-02 1
2017 1 1 2017-01-03 2
2017 1 1 2017-01-04 3
2017 1 1 2017-01-05 4
2017 1 1 2017-01-06 5
2017 1 1 2017-01-07 6
2017 1 1 2017-01-08 7
2017 1 2 2017-01-09 1
2017 1 2 2017-01-10 2
2017 1 2 2017-01-11 3
2017 1 2 2017-01-12 4
2017 1 2 2017-01-13 5
2017 1 2 2017-01-14 6
2017 1 2 2017-01-15 7
2017 1 3 2017-01-16 1
2017 1 3 2017-01-17 2
2017 1 3 2017-01-18 3
2017 1 3 2017-01-19 4
2017 1 3 2017-01-20 5
2017 1 3 2017-01-21 6
2017 1 3 2017-01-22 7
2017 1 4 2017-01-23 1
2017 1 4 2017-01-24 2
2017 1 4 2017-01-25 3
2017 1 4 2017-01-26 4
2017 1 4 2017-01-27 5
2017 1 4 2017-01-28 6
2017 1 4 2017-01-29 7
2017 1 5 2017-01-30 1
2017 1 5 2017-01-31 2
2017 1 5 0 3
2017 1 5 0 4
2017 1 5 0 5
2017 1 5 0 6
2017 2 4 0 7
2017 2 5 0 1
2017 2 5 0 2
2017 2 5 2017-02-01 3
2017 2 5 2017-02-02 4
2017 2 5 2017-02-03 5
2017 2 5 2017-02-04 6
2017 2 5 2017-02-05 7
2017 2 6 2017-02-06 1
2017 2 6 2017-02-07 2
2017 2 6 2017-02-08 3
2017 2 6 2017-02-09 4
2017 2 6 2017-02-10 5
2017 2 6 2017-02-11 6
2017 2 6 2017-02-12 7
2017 2 7 2017-02-13 1
2017 2 7 2017-02-14 2
2017 2 7 2017-02-15 3
2017 2 7 2017-02-16 4
2017 2 7 2017-02-17 5
2017 2 7 2017-02-18 6
2017 2 7 2017-02-19 7
2017 2 8 2017-02-20 1
2017 2 8 2017-02-21 2
2017 2 8 2017-02-22 3
2017 2 8 2017-02-23 4
2017 2 8 2017-02-24 5
2017 2 8 2017-02-25 6
2017 2 8 2017-02-26 7
2017 2 9 2017-02-27 1
2017 2 9 2017-02-28 2
2017 2 9 0 3
2017 2 9 0 4
2017 2 9 0 5
2017 2 9 0 6
2017 3 8 0 7
2017 3 9 0 1
2017 3 9 0 2
2017 3 9 2017-03-01 3
2017 3 9 2017-03-02 4
2017 3 9 2017-03-03 5
2017 3 9 2017-03-04 6
2017 3 9 2017-03-05 7
2017 3 10 2017-03-06 1
2017 3 10 2017-03-07 2
2017 3 10 2017-03-08 3
2017 3 10 2017-03-09 4
2017 3 10 2017-03-10 5
2017 3 10 2017-03-11 6
2017 3 10 2017-03-12 7
2017 3 11 2017-03-13 1
2017 3 11 2017-03-14 2
2017 3 11 2017-03-15 3
2017 3 11 2017-03-16 4
2017 3 11 2017-03-17 5
2017 3 11 2017-03-18 6
2017 3 11 2017-03-19 7
2017 3 12 2017-03-20 1
2017 3 12 2017-03-21 2
2017 3 12 2017-03-22 3
2017 3 12 2017-03-23 4
2017 3 12 2017-03-24 5
2017 3 12 2017-03-25 6
2017 3 12 2017-03-26 7
2017 3 13 2017-03-27 1
2017 3 13 2017-03-28 2
2017 3 13 2017-03-29 3
2017 3 13 2017-03-30 4
2017 3 13 2017-03-31 5
2017 3 13 0 6
2017 4 12 0 7
2017 4 13 0 1
2017 4 13 0 2
2017 4 13 0 3
2017 4 13 0 4
2017 4 13 0 5
2017 4 13 2017-04-01 6
2017 4 13 2017-04-02 7
2017 4 14 2017-04-03 1
2017 4 14 2017-04-04 2
2017 4 14 2017-04-05 3
2017 4 14 2017-04-06 4
2017 4 14 2017-04-07 5
2017 4 14 2017-04-08 6
2017 4 14 2017-04-09 7
2017 4 15 2017-04-10 1
2017 4 15 2017-04-11 2
2017 4 15 2017-04-12 3
2017 4 15 2017-04-13 4
2017 4 15 2017-04-14 5
2017 4 15 2017-04-15 6
2017 4 15 2017-04-16 7
2017 4 16 2017-04-17 1
2017 4 16 2017-04-18 2
2017 4 16 2017-04-19 3
2017 4 16 2017-04-20 4
2017 4 16 2017-04-21 5
2017 4 16 2017-04-22 6
2017 4 16 2017-04-23 7
2017 4 17 2017-04-24 1
2017 4 17 2017-04-25 2
2017 4 17 2017-04-26 3
2017 4 17 2017-04-27 4
2017 4 17 2017-04-28 5
2017 4 17 2017-04-29 6
2017 4 17 2017-04-30 7
2017 4 18 0 1
2017 4 18 0 2
2017 4 18 0 3
2017 4 18 0 4
2017 4 18 0 5
2017 4 18 0 6
2017 5 17 0 7
2017 5 18 2017-05-01 1
2017 5 18 2017-05-02 2
2017 5 18 2017-05-03 3
2017 5 18 2017-05-04 4
2017 5 18 2017-05-05 5
2017 5 18 2017-05-06 6
2017 5 18 2017-05-07 7
2017 5 19 2017-05-08 1
2017 5 19 2017-05-09 2
2017 5 19 2017-05-10 3
2017 5 19 2017-05-11 4
2017 5 19 2017-05-12 5
2017 5 19 2017-05-13 6
2017 5 19 2017-05-14 7
2017 5 20 2017-05-15 1
2017 5 20 2017-05-16 2
2017 5 20 2017-05-17 3
2017 5 20 2017-05-18 4
2017 5 20 2017-05-19 5
2017 5 20 2017-05-20 6
2017 5 20 2017-05-21 7
2017 5 21 2017-05-22 1
2017 5 21 2017-05-23 2
2017 5 21 2017-05-24 3
2017 5 21 2017-05-25 4
2017 5 21 2017-05-26 5
2017 5 21 2017-05-27 6
2017 5 21 2017-05-28 7
2017 5 22 2017-05-29 1
2017 5 22 2017-05-30 2
2017 5 22 2017-05-31 3
2017 5 22 0 4
2017 5 22 0 5
2017 5 22 0 6
2017 6 21 0 7
2017 6 22 0 1
2017 6 22 0 2
2017 6 22 0 3
2017 6 22 2017-06-01 4
2017 6 22 2017-06-02 5
2017 6 22 2017-06-03 6
2017 6 22 2017-06-04 7
2017 6 23 2017-06-05 1
2017 6 23 2017-06-06 2
2017 6 23 2017-06-07 3
2017 6 23 2017-06-08 4
2017 6 23 2017-06-09 5
2017 6 23 2017-06-10 6
2017 6 23 2017-06-11 7
2017 6 24 2017-06-12 1
2017 6 24 2017-06-13 2
2017 6 24 2017-06-14 3
2017 6 24 2017-06-15 4
2017 6 24 2017-06-16 5
2017 6 24 2017-06-17 6
2017 6 24 2017-06-18 7
2017 6 25 2017-06-19 1
2017 6 25 2017-06-20 2
2017 6 25 2017-06-21 3
2017 6 25 2017-06-22 4
2017 6 25 2017-06-23 5
2017 6 25 2017-06-24 6
2017 6 25 2017-06-25 7
2017 6 26 2017-06-26 1
2017 6 26 2017-06-27 2
2017 6 26 2017-06-28 3
2017 6 26 2017-06-29 4
2017 6 26 2017-06-30 5
2017 6 26 0 6
2017 7 25 0 7
2017 7 26 0 1
2017 7 26 0 2
2017 7 26 0 3
2017 7 26 0 4
2017 7 26 0 5
2017 7 26 2017-07-01 6
2017 7 26 2017-07-02 7
2017 7 27 2017-07-03 1
2017 7 27 2017-07-04 2
2017 7 27 2017-07-05 3
2017 7 27 2017-07-06 4
2017 7 27 2017-07-07 5
2017 7 27 2017-07-08 6
2017 7 27 2017-07-09 7
2017 7 28 2017-07-10 1
2017 7 28 2017-07-11 2
2017 7 28 2017-07-12 3
2017 7 28 2017-07-13 4
2017 7 28 2017-07-14 5
2017 7 28 2017-07-15 6
2017 7 28 2017-07-16 7
2017 7 29 2017-07-17 1
2017 7 29 2017-07-18 2
2017 7 29 2017-07-19 3
2017 7 29 2017-07-20 4
2017 7 29 2017-07-21 5
2017 7 29 2017-07-22 6
2017 7 29 2017-07-23 7
2017 7 30 2017-07-24 1
2017 7 30 2017-07-25 2
2017 7 30 2017-07-26 3
2017 7 30 2017-07-27 4
2017 7 30 2017-07-28 5
2017 7 30 2017-07-29 6
2017 7 30 2017-07-30 7
2017 7 31 2017-07-31 1
2017 7 31 0 2
2017 7 31 0 3
2017 7 31 0 4
2017 7 31 0 5
2017 7 31 0 6
2017 8 30 0 7
2017 8 31 0 1
2017 8 31 2017-08-01 2
2017 8 31 2017-08-02 3
2017 8 31 2017-08-03 4
2017 8 31 2017-08-04 5
2017 8 31 2017-08-05 6
2017 8 31 2017-08-06 7
2017 8 32 2017-08-07 1
2017 8 32 2017-08-08 2
2017 8 32 2017-08-09 3
2017 8 32 2017-08-10 4
2017 8 32 2017-08-11 5
2017 8 32 2017-08-12 6
2017 8 32 2017-08-13 7
2017 8 33 2017-08-14 1
2017 8 33 2017-08-15 2
2017 8 33 2017-08-16 3
2017 8 33 2017-08-17 4
2017 8 33 2017-08-18 5
2017 8 33 2017-08-19 6
2017 8 33 2017-08-20 7
2017 8 34 2017-08-21 1
2017 8 34 2017-08-22 2
2017 8 34 2017-08-23 3
2017 8 34 2017-08-24 4
2017 8 34 2017-08-25 5
2017 8 34 2017-08-26 6
2017 8 34 2017-08-27 7
2017 8 35 2017-08-28 1
2017 8 35 2017-08-29 2
2017 8 35 2017-08-30 3
2017 8 35 2017-08-31 4
2017 8 35 0 5
2017 8 35 0 6
2017 9 34 0 7
2017 9 35 0 1
2017 9 35 0 2
2017 9 35 0 3
2017 9 35 0 4
2017 9 35 2017-09-01 5
2017 9 35 2017-09-02 6
2017 9 35 2017-09-03 7
2017 9 36 2017-09-04 1
2017 9 36 2017-09-05 2
2017 9 36 2017-09-06 3
2017 9 36 2017-09-07 4
2017 9 36 2017-09-08 5
2017 9 36 2017-09-09 6
2017 9 36 2017-09-10 7
2017 9 37 2017-09-11 1
2017 9 37 2017-09-12 2
2017 9 37 2017-09-13 3
2017 9 37 2017-09-14 4
2017 9 37 2017-09-15 5
2017 9 37 2017-09-16 6
2017 9 37 2017-09-17 7
2017 9 38 2017-09-18 1
2017 9 38 2017-09-19 2
2017 9 38 2017-09-20 3
2017 9 38 2017-09-21 4
2017 9 38 2017-09-22 5
2017 9 38 2017-09-23 6
2017 9 38 2017-09-24 7
2017 9 39 2017-09-25 1
2017 9 39 2017-09-26 2
2017 9 39 2017-09-27 3
2017 9 39 2017-09-28 4
2017 9 39 2017-09-29 5
2017 9 39 2017-09-30 6
2017 10 39 2017-10-01 7
2017 10 40 2017-10-02 1
2017 10 40 2017-10-03 2
2017 10 40 2017-10-04 3
2017 10 40 2017-10-05 4
2017 10 40 2017-10-06 5
2017 10 40 2017-10-07 6
2017 10 40 2017-10-08 7
2017 10 41 2017-10-09 1
2017 10 41 2017-10-10 2
2017 10 41 2017-10-11 3
2017 10 41 2017-10-12 4
2017 10 41 2017-10-13 5
2017 10 41 2017-10-14 6
2017 10 41 2017-10-15 7
2017 10 42 2017-10-16 1
2017 10 42 2017-10-17 2
2017 10 42 2017-10-18 3
2017 10 42 2017-10-19 4
2017 10 42 2017-10-20 5
2017 10 42 2017-10-21 6
2017 10 42 2017-10-22 7
2017 10 43 2017-10-23 1
2017 10 43 2017-10-24 2
2017 10 43 2017-10-25 3
2017 10 43 2017-10-26 4
2017 10 43 2017-10-27 5
2017 10 43 2017-10-28 6
2017 10 43 2017-10-29 7
2017 10 44 2017-10-30 1
2017 10 44 2017-10-31 2
2017 10 44 0 3
2017 10 44 0 4
2017 10 44 0 5
2017 10 44 0 6
2017 11 43 0 7
2017 11 44 0 1
2017 11 44 0 2
2017 11 44 2017-11-01 3
2017 11 44 2017-11-02 4
2017 11 44 2017-11-03 5
2017 11 44 2017-11-04 6
2017 11 44 2017-11-05 7
2017 11 45 2017-11-06 1
2017 11 45 2017-11-07 2
2017 11 45 2017-11-08 3
2017 11 45 2017-11-09 4
2017 11 45 2017-11-10 5
2017 11 45 2017-11-11 6
2017 11 45 2017-11-12 7
2017 11 46 2017-11-13 1
2017 11 46 2017-11-14 2
2017 11 46 2017-11-15 3
2017 11 46 2017-11-16 4
2017 11 46 2017-11-17 5
2017 11 46 2017-11-18 6
2017 11 46 2017-11-19 7
2017 11 47 2017-11-20 1
2017 11 47 2017-11-21 2
2017 11 47 2017-11-22 3
2017 11 47 2017-11-23 4
2017 11 47 2017-11-24 5
2017 11 47 2017-11-25 6
2017 11 47 2017-11-26 7
2017 11 48 2017-11-27 1
2017 11 48 2017-11-28 2
2017 11 48 2017-11-29 3
2017 11 48 2017-11-30 4
2017 11 48 0 5
2017 11 48 0 6
2017 12 47 0 7
2017 12 48 0 1
2017 12 48 0 2
2017 12 48 0 3
2017 12 48 0 4
2017 12 48 2017-12-01 5
2017 12 48 2017-12-02 6
2017 12 48 2017-12-03 7
2017 12 49 2017-12-04 1
2017 12 49 2017-12-05 2
2017 12 49 2017-12-06 3
2017 12 49 2017-12-07 4
2017 12 49 2017-12-08 5
2017 12 49 2017-12-09 6
2017 12 49 2017-12-10 7
2017 12 50 2017-12-11 1
2017 12 50 2017-12-12 2
2017 12 50 2017-12-13 3
2017 12 50 2017-12-14 4
2017 12 50 2017-12-15 5
2017 12 50 2017-12-16 6
2017 12 50 2017-12-17 7
2017 12 51 2017-12-18 1
2017 12 51 2017-12-19 2
2017 12 51 2017-12-20 3
2017 12 51 2017-12-21 4
2017 12 51 2017-12-22 5
2017 12 51 2017-12-23 6
2017 12 51 2017-12-24 7
2017 12 52 2017-12-25 1
2017 12 52 2017-12-26 2
2017 12 52 2017-12-27 3
2017 12 52 2017-12-28 4
2017 12 52 2017-12-29 5
2017 12 52 2017-12-30 6
2017 12 52 2017-12-31 7
2017 12 53 0 1
2017 12 53 0 2
2017 12 53 0 3
2017 12 53 0 4
2017 12 53 0 5
2017 12 53 0 6
2018 1 0 2018-01-01 1
2018 1 0 2018-01-02 2
2018 1 0 2018-01-03 3
2018 1 0 2018-01-04 4
2018 1 0 2018-01-05 5
2018 1 0 2018-01-06 6
2018 1 0 2018-01-07 7
2018 1 1 2018-01-08 1
2018 1 1 2018-01-09 2
2018 1 1 2018-01-10 3
2018 1 1 2018-01-11 4
2018 1 1 2018-01-12 5
2018 1 1 2018-01-13 6
2018 1 1 2018-01-14 7
2018 1 2 2018-01-15 1
2018 1 2 2018-01-16 2
2018 1 2 2018-01-17 3
2018 1 2 2018-01-18 4
2018 1 2 2018-01-19 5
2018 1 2 2018-01-20 6
2018 1 2 2018-01-21 7
2018 1 3 2018-01-22 1
2018 1 3 2018-01-23 2
2018 1 3 2018-01-24 3
2018 1 3 2018-01-25 4
2018 1 3 2018-01-26 5
2018 1 3 2018-01-27 6
2018 1 3 2018-01-28 7
2018 1 4 2018-01-29 1
2018 1 4 2018-01-30 2
2018 1 4 2018-01-31 3
2018 1 4 0 4
2018 1 4 0 5
2018 1 4 0 6
2018 2 3 0 7
2018 2 4 0 1
2018 2 4 0 2
2018 2 4 0 3
2018 2 4 2018-02-01 4
2018 2 4 2018-02-02 5
2018 2 4 2018-02-03 6
2018 2 4 2018-02-04 7
2018 2 5 2018-02-05 1
2018 2 5 2018-02-06 2
2018 2 5 2018-02-07 3
2018 2 5 2018-02-08 4
2018 2 5 2018-02-09 5
2018 2 5 2018-02-10 6
2018 2 5 2018-02-11 7
2018 2 6 2018-02-12 1
2018 2 6 2018-02-13 2
2018 2 6 2018-02-14 3
2018 2 6 2018-02-15 4
2018 2 6 2018-02-16 5
2018 2 6 2018-02-17 6
2018 2 6 2018-02-18 7
2018 2 7 2018-02-19 1
2018 2 7 2018-02-20 2
2018 2 7 2018-02-21 3
2018 2 7 2018-02-22 4
2018 2 7 2018-02-23 5
2018 2 7 2018-02-24 6
2018 2 7 2018-02-25 7
2018 2 8 2018-02-26 1
2018 2 8 2018-02-27 2
2018 2 8 2018-02-28 3
2018 2 8 0 4
2018 2 8 0 5
2018 2 8 0 6
2018 3 7 0 7
2018 3 8 0 1
2018 3 8 0 2
2018 3 8 0 3
2018 3 8 2018-03-01 4
2018 3 8 2018-03-02 5
2018 3 8 2018-03-03 6
2018 3 8 2018-03-04 7
2018 3 9 2018-03-05 1
2018 3 9 2018-03-06 2
2018 3 9 2018-03-07 3
2018 3 9 2018-03-08 4
2018 3 9 2018-03-09 5
2018 3 9 2018-03-10 6
2018 3 9 2018-03-11 7
2018 3 10 2018-03-12 1
2018 3 10 2018-03-13 2
2018 3 10 2018-03-14 3
2018 3 10 2018-03-15 4
2018 3 10 2018-03-16 5
2018 3 10 2018-03-17 6
2018 3 10 2018-03-18 7
2018 3 11 2018-03-19 1
2018 3 11 2018-03-20 2
2018 3 11 2018-03-21 3
2018 3 11 2018-03-22 4
2018 3 11 2018-03-23 5
2018 3 11 2018-03-24 6
2018 3 11 2018-03-25 7
2018 3 12 2018-03-26 1
2018 3 12 2018-03-27 2
2018 3 12 2018-03-28 3
2018 3 12 2018-03-29 4
2018 3 12 2018-03-30 5
2018 3 12 2018-03-31 6
2018 4 12 2018-04-01 7
2018 4 13 2018-04-02 1
2018 4 13 2018-04-03 2
2018 4 13 2018-04-04 3
2018 4 13 2018-04-05 4
2018 4 13 2018-04-06 5
2018 4 13 2018-04-07 6
2018 4 13 2018-04-08 7
2018 4 14 2018-04-09 1
2018 4 14 2018-04-10 2
2018 4 14 2018-04-11 3
2018 4 14 2018-04-12 4
2018 4 14 2018-04-13 5
2018 4 14 2018-04-14 6
2018 4 14 2018-04-15 7
2018 4 15 2018-04-16 1
2018 4 15 2018-04-17 2
2018 4 15 2018-04-18 3
2018 4 15 2018-04-19 4
2018 4 15 2018-04-20 5
2018 4 15 2018-04-21 6
2018 4 15 2018-04-22 7
2018 4 16 2018-04-23 1
2018 4 16 2018-04-24 2
2018 4 16 2018-04-25 3
2018 4 16 2018-04-26 4
2018 4 16 2018-04-27 5
2018 4 16 2018-04-28 6
2018 4 16 2018-04-29 7
2018 4 17 2018-04-30 1
2018 4 17 0 2
2018 4 17 0 3
2018 4 17 0 4
2018 4 17 0 5
2018 4 17 0 6
2018 5 16 0 7
2018 5 17 0 1
2018 5 17 2018-05-01 2
2018 5 17 2018-05-02 3
2018 5 17 2018-05-03 4
2018 5 17 2018-05-04 5
2018 5 17 2018-05-05 6
2018 5 17 2018-05-06 7
2018 5 18 2018-05-07 1
2018 5 18 2018-05-08 2
2018 5 18 2018-05-09 3
2018 5 18 2018-05-10 4
2018 5 18 2018-05-11 5
2018 5 18 2018-05-12 6
2018 5 18 2018-05-13 7
2018 5 19 2018-05-14 1
2018 5 19 2018-05-15 2
2018 5 19 2018-05-16 3
2018 5 19 2018-05-17 4
2018 5 19 2018-05-18 5
2018 5 19 2018-05-19 6
2018 5 19 2018-05-20 7
2018 5 20 2018-05-21 1
2018 5 20 2018-05-22 2
2018 5 20 2018-05-23 3
2018 5 20 2018-05-24 4
2018 5 20 2018-05-25 5
2018 5 20 2018-05-26 6
2018 5 20 2018-05-27 7
2018 5 21 2018-05-28 1
2018 5 21 2018-05-29 2
2018 5 21 2018-05-30 3
2018 5 21 2018-05-31 4
2018 5 21 0 5
2018 5 21 0 6
2018 6 20 0 7
2018 6 21 0 1
2018 6 21 0 2
2018 6 21 0 3
2018 6 21 0 4
2018 6 21 2018-06-01 5
2018 6 21 2018-06-02 6
2018 6 21 2018-06-03 7
2018 6 22 2018-06-04 1
2018 6 22 2018-06-05 2
2018 6 22 2018-06-06 3
2018 6 22 2018-06-07 4
2018 6 22 2018-06-08 5
2018 6 22 2018-06-09 6
2018 6 22 2018-06-10 7
2018 6 23 2018-06-11 1
2018 6 23 2018-06-12 2
2018 6 23 2018-06-13 3
2018 6 23 2018-06-14 4
2018 6 23 2018-06-15 5
2018 6 23 2018-06-16 6
2018 6 23 2018-06-17 7
2018 6 24 2018-06-18 1
2018 6 24 2018-06-19 2
2018 6 24 2018-06-20 3
2018 6 24 2018-06-21 4
2018 6 24 2018-06-22 5
2018 6 24 2018-06-23 6
2018 6 24 2018-06-24 7
2018 6 25 2018-06-25 1
2018 6 25 2018-06-26 2
2018 6 25 2018-06-27 3
2018 6 25 2018-06-28 4
2018 6 25 2018-06-29 5
2018 6 25 2018-06-30 6
2018 7 25 2018-07-01 7
2018 7 26 2018-07-02 1
2018 7 26 2018-07-03 2
2018 7 26 2018-07-04 3
2018 7 26 2018-07-05 4
2018 7 26 2018-07-06 5
2018 7 26 2018-07-07 6
2018 7 26 2018-07-08 7
2018 7 27 2018-07-09 1
2018 7 27 2018-07-10 2
2018 7 27 2018-07-11 3
2018 7 27 2018-07-12 4
2018 7 27 2018-07-13 5
2018 7 27 2018-07-14 6
2018 7 27 2018-07-15 7
2018 7 28 2018-07-16 1
2018 7 28 2018-07-17 2
2018 7 28 2018-07-18 3
2018 7 28 2018-07-19 4
2018 7 28 2018-07-20 5
2018 7 28 2018-07-21 6
2018 7 28 2018-07-22 7
2018 7 29 2018-07-23 1
2018 7 29 2018-07-24 2
2018 7 29 2018-07-25 3
2018 7 29 2018-07-26 4
2018 7 29 2018-07-27 5
2018 7 29 2018-07-28 6
2018 7 29 2018-07-29 7
2018 7 30 2018-07-30 1
2018 7 30 2018-07-31 2
2018 7 30 0 3
2018 7 30 0 4
2018 7 30 0 5
2018 7 30 0 6
2018 8 29 0 7
2018 8 30 0 1
2018 8 30 0 2
2018 8 30 2018-08-01 3
2018 8 30 2018-08-02 4
2018 8 30 2018-08-03 5
2018 8 30 2018-08-04 6
2018 8 30 2018-08-05 7
2018 8 31 2018-08-06 1
2018 8 31 2018-08-07 2
2018 8 31 2018-08-08 3
2018 8 31 2018-08-09 4
2018 8 31 2018-08-10 5
2018 8 31 2018-08-11 6
2018 8 31 2018-08-12 7
2018 8 32 2018-08-13 1
2018 8 32 2018-08-14 2
2018 8 32 2018-08-15 3
2018 8 32 2018-08-16 4
2018 8 32 2018-08-17 5
2018 8 32 2018-08-18 6
2018 8 32 2018-08-19 7
2018 8 33 2018-08-20 1
2018 8 33 2018-08-21 2
2018 8 33 2018-08-22 3
2018 8 33 2018-08-23 4
2018 8 33 2018-08-24 5
2018 8 33 2018-08-25 6
2018 8 33 2018-08-26 7
2018 8 34 2018-08-27 1
2018 8 34 2018-08-28 2
2018 8 34 2018-08-29 3
2018 8 34 2018-08-30 4
2018 8 34 2018-08-31 5
2018 8 34 0 6
2018 9 33 0 7
2018 9 34 0 1
2018 9 34 0 2
2018 9 34 0 3
2018 9 34 0 4
2018 9 34 0 5
2018 9 34 2018-09-01 6
2018 9 34 2018-09-02 7
2018 9 35 2018-09-03 1
2018 9 35 2018-09-04 2
2018 9 35 2018-09-05 3
2018 9 35 2018-09-06 4
2018 9 35 2018-09-07 5
2018 9 35 2018-09-08 6
2018 9 35 2018-09-09 7
2018 9 36 2018-09-10 1
2018 9 36 2018-09-11 2
2018 9 36 2018-09-12 3
2018 9 36 2018-09-13 4
2018 9 36 2018-09-14 5
2018 9 36 2018-09-15 6
2018 9 36 2018-09-16 7
2018 9 37 2018-09-17 1
2018 9 37 2018-09-18 2
2018 9 37 2018-09-19 3
2018 9 37 2018-09-20 4
2018 9 37 2018-09-21 5
2018 9 37 2018-09-22 6
2018 9 37 2018-09-23 7
2018 9 38 2018-09-24 1
2018 9 38 2018-09-25 2
2018 9 38 2018-09-26 3
2018 9 38 2018-09-27 4
2018 9 38 2018-09-28 5
2018 9 38 2018-09-29 6
2018 9 38 2018-09-30 7
2018 9 39 0 1
2018 9 39 0 2
2018 9 39 0 3
2018 9 39 0 4
2018 9 39 0 5
2018 9 39 0 6
2018 10 38 0 7
2018 10 39 2018-10-01 1
2018 10 39 2018-10-02 2
2018 10 39 2018-10-03 3
2018 10 39 2018-10-04 4
2018 10 39 2018-10-05 5
2018 10 39 2018-10-06 6
2018 10 39 2018-10-07 7
2018 10 40 2018-10-08 1
2018 10 40 2018-10-09 2
2018 10 40 2018-10-10 3
2018 10 40 2018-10-11 4
2018 10 40 2018-10-12 5
2018 10 40 2018-10-13 6
2018 10 40 2018-10-14 7
2018 10 41 2018-10-15 1
2018 10 41 2018-10-16 2
2018 10 41 2018-10-17 3
2018 10 41 2018-10-18 4
2018 10 41 2018-10-19 5
2018 10 41 2018-10-20 6
2018 10 41 2018-10-21 7
2018 10 42 2018-10-22 1
2018 10 42 2018-10-23 2
2018 10 42 2018-10-24 3
2018 10 42 2018-10-25 4
2018 10 42 2018-10-26 5
2018 10 42 2018-10-27 6
2018 10 42 2018-10-28 7
2018 10 43 2018-10-29 1
2018 10 43 2018-10-30 2
2018 10 43 2018-10-31 3
2018 10 43 0 4
2018 10 43 0 5
2018 10 43 0 6
2018 11 42 0 7
2018 11 43 0 1
2018 11 43 0 2
2018 11 43 0 3
2018 11 43 2018-11-01 4
2018 11 43 2018-11-02 5
2018 11 43 2018-11-03 6
2018 11 43 2018-11-04 7
2018 11 44 2018-11-05 1
2018 11 44 2018-11-06 2
2018 11 44 2018-11-07 3
2018 11 44 2018-11-08 4
2018 11 44 2018-11-09 5
2018 11 44 2018-11-10 6
2018 11 44 2018-11-11 7
2018 11 45 2018-11-12 1
2018 11 45 2018-11-13 2
2018 11 45 2018-11-14 3
2018 11 45 2018-11-15 4
2018 11 45 2018-11-16 5
2018 11 45 2018-11-17 6
2018 11 45 2018-11-18 7
2018 11 46 2018-11-19 1
2018 11 46 2018-11-20 2
2018 11 46 2018-11-21 3
2018 11 46 2018-11-22 4
2018 11 46 2018-11-23 5
2018 11 46 2018-11-24 6
2018 11 46 2018-11-25 7
2018 11 47 2018-11-26 1
2018 11 47 2018-11-27 2
2018 11 47 2018-11-28 3
2018 11 47 2018-11-29 4
2018 11 47 2018-11-30 5
2018 11 47 0 6
2018 12 46 0 7
2018 12 47 0 1
2018 12 47 0 2
2018 12 47 0 3
2018 12 47 0 4
2018 12 47 0 5
2018 12 47 2018-12-01 6
2018 12 47 2018-12-02 7
2018 12 48 2018-12-03 1
2018 12 48 2018-12-04 2
2018 12 48 2018-12-05 3
2018 12 48 2018-12-06 4
2018 12 48 2018-12-07 5
2018 12 48 2018-12-08 6
2018 12 48 2018-12-09 7
2018 12 49 2018-12-10 1
2018 12 49 2018-12-11 2
2018 12 49 2018-12-12 3
2018 12 49 2018-12-13 4
2018 12 49 2018-12-14 5
2018 12 49 2018-12-15 6
2018 12 49 2018-12-16 7
2018 12 50 2018-12-17 1
2018 12 50 2018-12-18 2
2018 12 50 2018-12-19 3
2018 12 50 2018-12-20 4
2018 12 50 2018-12-21 5
2018 12 50 2018-12-22 6
2018 12 50 2018-12-23 7
2018 12 51 2018-12-24 1
2018 12 51 2018-12-25 2
2018 12 51 2018-12-26 3
2018 12 51 2018-12-27 4
2018 12 51 2018-12-28 5
2018 12 51 2018-12-29 6
2018 12 51 2018-12-30 7
2018 12 52 2018-12-31 1
2018 12 52 0 2
2018 12 52 0 3
2018 12 52 0 4
2018 12 52 0 5
2018 12 52 0 6
- 支持SQL Schema
CREATE TABLE `date_48361641` (
`date` date DEFAULT NULL
) ENGINE=InnoDB DEFAULT CHARSET=utf8;
truncate date_48361641 ;
insert into date_48361641 ( `date` )
select * from
(select adddate('1970-01-01',t4.i*10000 + t3.i*1000 + t2.i*100 + t1.i*10 + t0.i) selected_date from
(select 0 i union select 1 union select 2 union select 3 union select 4 union select 5 union select 6 union select 7 union select 8 union select 9) t0,
(select 0 i union select 1 union select 2 union select 3 union select 4 union select 5 union select 6 union select 7 union select 8 union select 9) t1,
(select 0 i union select 1 union select 2 union select 3 union select 4 union select 5 union select 6 union select 7 union select 8 union select 9) t2,
(select 0 i union select 1 union select 2 union select 3 union select 4 union select 5 union select 6 union select 7 union select 8 union select 9) t3,
(select 0 i union select 1 union select 2 union select 3 union select 4 union select 5 union select 6 union select 7 union select 8 union select 9) t4) v
where selected_date between '2016-01-01' and '2018-12-31' ;
答案 2 :(得分：0)
此查询似乎可以解决您的查询。我假设您的最小日期超过1900-01-01。如果没有将任何其他日期低于您的最小日期并且是星期一 使用递归cte
也可能有更好的解决方案with cte as (
select cast(a as datetime) date, b week_day from (values ('20180201',4)
,('20180202',5)
,('20180203',6)
,('20180204',7)
,('20180205',1)
,('20180206',2)
,('20180207',3)
,('20180226',1)
,('20180227',2)
,('20180228',3)
,('20181231',1)
,('20190101',2)
,('20190102',3)
,('20190103',4)
,('20190104',5)
) t(a,b)
)
select
iif((rn = 1 and charindex(k, st) > 0) or k is null, convert(varchar(10), date, 120), '0')
, isnull(k, week_day)
from (
select
date, week_day, ww
, concat(max(iif(week_day = 1, 1, null)) over (partition by ww)
, max(iif(week_day = 2, 2, null)) over (partition by ww)
, max(iif(week_day = 3, 3, null)) over (partition by ww)
, max(iif(week_day = 4, 4, null)) over (partition by ww)
, max(iif(week_day = 5, 5, null)) over (partition by ww)
, max(iif(week_day = 6, 6, null)) over (partition by ww)
, max(iif(week_day = 7, 7, null)) over (partition by ww)) st
, row_number() over (partition by ww order by week_day) rn
from
cte
cross apply (select datediff(dd, cast('19000101' as datetime), date) / 7 ww) q
) t
left join (values ('1'),('2'),('3'),('4'),('5'),('6'),('7')) z(k)
on
rn = 1
and (charindex(k, st) = 0 or iif(rn = 1, week_day, 0) = k)
答案 3 :(得分：-1)
这样的事情应该有效
with allDates as (
see link below to finish this part
)
select DateFieldFromYourTable
, isnull(WeekDay, 0) DayOfWeek
from allDates left join YourTable on allDates.Something = DateFieldFromYourTable
阅读this以获取子查询的代码。