Order By Clause 在 SQL 服务器中无法用于排序日期值

Question

我有两个表，一个叫做 Shelf Table，它有 Shelf Number

SEQ	SHELF_NUMBER	QUANTITY
1	ID001	100
2	ID002	20
3	ID003	55
4	ID004	200
5	ID005	38

我的另一个 Table 是 Shelf_Data

SEQ	SHELF_NUMBER_FK	FIELD	VALUE
1	ID001	BATCH	100006
2	ID001	SHELF_DATE	08/20/2023
3	ID002	BATCH	110009
4	ID003	BATCH	565644
5	ID003	SHELF_DATE	02/10/2024
6	ID004	BATCH	222389
7	ID004	SHELF_DATE	10/25/2023
8	ID005	BATCH	181865

我已经编写了一个基于 SHELF_DATE 的排序查询，如下所示

SELECT s.SHELF_NUMBER, SUM(s.QUANTITY), sd.VALUE AS BATCH
  FROM SHELF s
  LEFT JOIN SHELF_DATA sd
    ON s.SHELF_NUMBER = sd.SHELF_NUMBER_FK
   AND sd.FIELD IN ('BATCH')
 WHERE s.QUANTITY > 0
 GROUP BY s.SHELF_NUMBER, sd.VALUE
 ORDER BY (CASE
            WHEN sd.FIELD = 'SHELF_DATE' THEN
             sd.VALUE
           END) ASC

所以，我想从上面的查询中完成的是获取有效数量的货架批号，这些批号按货架日期升序排列。但是 Order By Clause 没有使用 Shelf_Date 值对数据进行排序。

期望输出::

SHELF_NUMBER	SUM_QUANTITY	BATCH
ID001	100	100006
ID004	200	222389
ID003	55	565644
ID002	20	110009
ID005	38	181865

真的卡在这里..提前致谢

Answer 1

您可以将其编写为 2 个单独的查询。

;with cte as 
(SELECT s.SHELF_NUMBER, SUM(s.QUANTITY) qty, sd.VALUE AS BATCH
  FROM SHELF s
  LEFT JOIN SHELF_DATA sd
    ON s.SHELF_NUMBER = sd.SHELF_NUMBER_FK
   AND sd.FIELD IN ('BATCH')
 WHERE s.QUANTITY > 0
 GROUP BY s.SHELF_NUMBER, sd.VALUE
)
select c.* from cte c
inner join SHELF_DATA sd
ON s.SHELF_NUMBER = sd.SHELF_NUMBER_FK
where sd.FIELD = 'shelf_date'
order by sd.value

Answer 2

提供(SHELF_NUMBER_FK,FIELD)是SHELF_DATA的唯一键table你可以加入它两次。分组时不确定你想要哪个日期，假设最大。

SELECT s.SHELF_NUMBER, SUM(s.QUANTITY), sd1.VALUE AS BATCH, max(Convert(DATE, sd2.VALUE, 101) s_date
  FROM SHELF s
  LEFT JOIN SHELF_DATA sd1
    ON s.SHELF_NUMBER = sd1.SHELF_NUMBER_FK
   AND sd1.FIELD ='BATCH'
  LEFT JOIN SHELF_DATA sd2
    ON s.SHELF_NUMBER = sd2.SHELF_NUMBER_FK
   AND sd2.FIELD IN ='SHELF_DATE' 
 WHERE s.QUANTITY > 0
 GROUP BY s.SHELF_NUMBER, sd1.VALUE
 ORDER BY max(Convert(DATE, sd2.VALUE, 101)) ASC

Order By Clause 在 SQL 服务器中无法用于排序日期值

Order By Clause not working in SQL Server for Sorting date value

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