Sql 为表中的3列应用行号

我有一张名为“Temp”的桌子

ItemId  JobId   Status
1       11      Yes
1       12      No
1       12      Yes
1       13      Yes
2       12      Yes
2       12      Yes
2       11      No
2       13      Yes
2       13      No
2       13      Yes

我的预期输出是，需要根据值为这3列（ItemId、JobId、Status）设置序列

产出应为：

iID     iSN     JobId   JobSN   Status  statusId
1       1       11      1       Yes     1
1       2       12      1       No      1
1       3       12      2       Yes     1
1       4       13      1       Yes     1
2       1       12      1       Yes     1
2       2       12      2       Yes     2
2       3       11      1       No      1
2       4       13      1       Yes     1
2       5       13      2       No      1
2       6       13      3       Yes     2

Here iSN needs to set based on ItemId
JobSN based on JobId->ItemId
StatusId based on Status->JobId->ItemId

我知道要在列上设置序列，需要使用ROW_NUMBER（）over（partition[ColumnName]）对列进行分区。

但是，我怎样才能申请获得预期的产出呢。有人能帮我吗

---

提前感谢

只有statusId列我不清楚。希望这是一个开始

SELECT ItemId
    , ROW_NUMBER() OVER (PARTITION BY ItemID ORDER BY ItemID) AS iSN
    , JobId
    , ROW_NUMBER() OVER (PARTITION BY JobId, ItemID ORDER BY ItemId) AS iSN
    , Status
FROM @T 
ORDER BY ItemId

结果

+------+----+------+----+-------+
|ItemId|iSN |JobId |iSN |Status |
+------+----+------+----+-------+
|1     |1   |11    |1   |Yes
|1     |2   |12    |1   |No
|1     |3   |12    |2   |Yes
|1     |4   |13    |1   |Yes
|2     |1   |11    |1   |No
|2     |2   |12    |1   |Yes
|2     |3   |12    |2   |Yes
|2     |4   |13    |1   |Yes
|2     |5   |13    |2   |No
|2     |6   |13    |3   |Yes
+------+----+------+----+-------+

试试这个：

SELECT Itemid AS iID
, ROW_NUMBER() OVER (PARTITION BY ITEMID  ORDER BY JobID, STATUS) AS iSN
, JobID
, ROW_NUMBER() OVER (PARTITION BY ITEMID,JobID  ORDER BY JobID, STATUS) AS iSN
, Status
, ROW_NUMBER() OVER (PARTITION BY ITEMID,JobID,STATUS  ORDER BY JobID, STATUS) AS statusid
FROM TEMP;

但你必须按照规则来决定顺序，以获得始终相同的结果：我的结果与你的结果略有不同）

---

假设您有一列可用于按行排序，则可以执行以下操作：

创建并填充样本表（请在以后的问题中保存此步骤）

查询：

SELECT  ItemId As iID,     
        ROW_NUMBER() OVER(PARTITION BY ItemId ORDER BY id) As iSN,
        JobId,
        ROW_NUMBER() OVER(PARTITION BY JobId, ItemId ORDER BY id) As JobSN,
        [Status],
        ROW_NUMBER() OVER(PARTITION BY [Status],JobId, ItemId ORDER BY id) As statusId
FROM @T
ORDER BY id

结果:

iID     iSN     JobId   JobSN   Status  statusId
1       1       11      1       Yes     1
1       2       12      1       No      1
1       3       12      2       Yes     1
1       4       13      1       Yes     1
2       1       12      1       Yes     1
2       2       12      2       Yes     2
2       3       11      1       No      1
2       4       13      1       Yes     1
2       5       13      2       No      1
2       6       13      3       Yes     2

---

你的结果毫无意义。请描述输出与输入的关系。似乎您已经知道该做什么，这里的问题是什么？您是否有任何列可用于order by子句？我感觉您不知道在关系数据库中，表是无序的行集。

SELECT  ItemId As iID,     
        ROW_NUMBER() OVER(PARTITION BY ItemId ORDER BY id) As iSN,
        JobId,
        ROW_NUMBER() OVER(PARTITION BY JobId, ItemId ORDER BY id) As JobSN,
        [Status],
        ROW_NUMBER() OVER(PARTITION BY [Status],JobId, ItemId ORDER BY id) As statusId
FROM @T
ORDER BY id

iID     iSN     JobId   JobSN   Status  statusId
1       1       11      1       Yes     1
1       2       12      1       No      1
1       3       12      2       Yes     1
1       4       13      1       Yes     1
2       1       12      1       Yes     1
2       2       12      2       Yes     2
2       3       11      1       No      1
2       4       13      1       Yes     1
2       5       13      2       No      1
2       6       13      3       Yes     2