Question

首先，感谢您的时间和帮助！

我有两张桌子：

表1

PersId     name       lastName   city
---------------------------------------
1          John       Smith      Tirana
2          Leri       Nice       Tirana
3          Adam       fortsan    Tirana

表2

Id       PersId      salesDate
--------------------------------------------
1         1          2017-01-22 08:00:40 000
2         2          2017-01-22 09:00:00 000
3         1          2017-01-22 10:00:00 000
4         1          2017-01-22 20:00:00 000
5         3          2017-01-15 09:00:00 000
6         1          2017-01-21 09:00:00 000
7         1          2017-01-21 10:00:00 000
8         1          2017-01-21 18:55:00 000

我希望看到根据每个城市的两个日期之间的第一次近期销售每天如果我没有销售，我想把它带空

 SalesDate > '2017-01-17 09:00:00 000' 
 and SalesDate < '2017-01-23 09:00:00 000'

表2，id = 5，因为记录不在指定的日期范围内

如果我希望我的结果看起来像

Id      PersId     MinSalesDate                 MaxSalesDate             City  Date
-----------------------------------------------------------------------------
1         1     2017-01-22 08:00:40 000  2017-01-22 20:00:00 000 Tirana 2017-01-22
2         2      2017-01-22 09:00:00 000  null                   Tirana 2017-01-22
3         3      null                     null                   Tirana 2017-01-22
4         1     2017-01-21 09:00:00 000  2017-01-21 18:55:00 000 Tirana 2017-01-21
5         2        null                     null                 Tirana 2017-01-21
6         3        null                     null                 Tirana 2017-01-21
7         1        null                     null                 Tirana 2017-01-20
8         2        null                     null                 Tirana 2017-01-20
9         3        null                     null                 Tirana 2017-01-20

VB .....

它可以工作1天，但它每天都不能工作2天

 SELECT 
        T2.Id, T1.PersId, T2.MIN_salesDate, T2.MAX_salesDate, T1.City
    FROM Table1 T1
    LEFT JOIN
    (
        SELECT MIN(Id) as Id, PersId, MIN(salesDate) as MIN_salesDate, MAX(salesDate) as MAX_salesDate 
        FROM
        (
            SELECT 
                 *
                ,ROW_NUMBER() OVER (PARTITION BY PersId ORDER BY salesDate ASC) as RNKMIN
                ,ROW_NUMBER() OVER (PARTITION BY PersId ORDER BY salesDate DESC) as RNKMAX 
            FROM Table2 T2 
            WHERE salesDate Between '2017-01-17 09:00:00 000' And '2017-01-23 09:00:00 000'
        ) temp
        WHERE RNKMIN = 1 or RNKMAX = 1
        GROUP BY PersId
    ) T2
    on T1.PersId = T2.PersId

Answer 1

试试这个

DECLARE @Table1 TABLE(
PersId INT,
name NVARCHAR(50),
city NVARCHAR(50)
)

DECLARE @Table2 TABLE(
Id INT,
PersId INT,
salesDate NVARCHAR(50)
)

INSERT INTO @Table1 VALUES(1, 'John', 'Tirana')
INSERT INTO @Table1 VALUES(2, 'Leri', 'Tirana')
INSERT INTO @Table1 VALUES(3, 'Adam', 'Tirana')

INSERT INTO @Table2 VALUES(1, 1, '2017-01-22 08:00:40')
INSERT INTO @Table2 VALUES(2, 2, '2017-01-22 09:00:00')
INSERT INTO @Table2 VALUES(3, 1, '2017-01-22 10:00:00')
INSERT INTO @Table2 VALUES(4, 1, '2017-01-22 20:00:00')
INSERT INTO @Table2 VALUES(5, 3, '2017-01-15 09:00:00')
INSERT INTO @Table2 VALUES(6, 1, '2017-01-21 09:00:00')
INSERT INTO @Table2 VALUES(7, 1, '2017-01-21 10:00:00')
INSERT INTO @Table2 VALUES(8, 1, '2017-01-21 18:55:00')



SELECT T1.PersId, GroupTable.MinSalesDate, GroupTable.MaxSalesDate, T1.city
FROM @Table1 AS T1
LEFT JOIN
(SELECT max(salesDate) as 'MaxSalesDate', CASE WHEN min(salesDate) <> max(salesDate) THEN min(salesDate) ELSE NULL END AS 'MinSalesDate', PersId
FROM @Table2
WHERE salesDate > '2017-01-17 09:00:00' and SalesDate < '2017-01-23 09:00:00'
GROUP BY DATEPART(day, salesDate) , PersId) AS GroupTable
ON T1.PersId = GroupTable.PersId

结果：

Answer 2

请尝试此操作如果您需要进行任何修改，请告知我们。

SELECT a.PersId, MIN(salesDate) MinSalesDate , CASE WHEN  MIN(salesDate) = MAX(salesDate) 
THEN NULL ELSE MAX(salesDate)  END MaxSalesDate , a.city FROM Table1 a
FULL JOIN Table2 b ON a.PersId = b.PersId
AND SalesDate > '2017-01-17 09:00:00' and SalesDate < '2017-01-23 09:00:00'
WHERE a.PersId IS NOT NULL
GROUP BY a.PersId,a.city,CAST(salesDate AS DATE)
ORDER BY a.PersId

输出

PersId      MinSalesDate            MaxSalesDate            city
----------- ----------------------- ----------------------- ----------
1           2017-01-22 08:00:40.000 2017-01-22 20:00:00.000 Tirana
2           2017-01-22 09:00:00.000 NULL                    Tirana
3           NULL                    NULL                    Tirana
1           2017-01-21 09:00:00.000 2017-01-21 18:55:00.000 Tirana

(4 rows affected)

我也更新了您的查询。请参阅。

SELECT 
        T2.Id, T1.PersId, T2.MIN_salesDate, T2.MAX_salesDate, T1.City
    FROM Table1 T1
    LEFT JOIN
    (
        SELECT MIN(Id) as Id, PersId, MIN(salesDate) as MIN_salesDate, MAX(salesDate) as MAX_salesDate 
        FROM
        (
            SELECT 
                 *
                ,ROW_NUMBER() OVER (PARTITION BY PersId ORDER BY salesDate ASC) as RNKMIN
                ,ROW_NUMBER() OVER (PARTITION BY PersId ORDER BY salesDate DESC) as RNKMAX 
            FROM Table2 T2 
            WHERE salesDate Between '2017-01-17 09:00:00' And '2017-01-23 09:00:00'
        ) temp
        WHERE RNKMIN = 1 or RNKMAX = 1
        GROUP BY PersId,CAST(salesDate AS DATE)
    ) T2
    on T1.PersId = T2.PersId

查询输出

Id          PersId      MIN_salesDate           MAX_salesDate           City
----------- ----------- ----------------------- ----------------------- ----------
6           1           2017-01-21 09:00:00.000 2017-01-21 09:00:00.000 Tirana
4           1           2017-01-22 20:00:00.000 2017-01-22 20:00:00.000 Tirana
2           2           2017-01-22 09:00:00.000 2017-01-22 09:00:00.000 Tirana
NULL        3           NULL                    NULL                    Tirana

(4 rows affected)

每天两个日期之间的T-SQL最大日期和最小日期

2 个答案: