我有这张桌子
| ID_prim | ID (FKey) | Date | Moved Items |
|:-----------|:------------|-------------:|:------------:|
| 1003 | 12_1 | nov 2013 | 2 |
| 1003 | 12_2 | okt 2013 | 3 |
| 1003 | 12_3 | dec 2014 | 5 |
| 1003 | 12_4 | feb 2015 | 10 |
| 1003 | 12_5 | apr 2012 | 1 |
| 1003 | 12_11 | jan 2011 | 5 |
我想查询同一个表,如下所示:
喜欢这样
| ID_prim | ID (FKey) | Date | Moved Items | Summed Total |
|:-----------|:------------|-------------:|:------------:|:------------:|
| 1003 | 12_4 | feb 2015 | 10 | 26
| 1003 | 12_3 | dec 2014 | 5 | 16
| 1003 | 12_3 | nov 2013 | 2 | 11 <
| 1003 | 12_4 | okt 2013 | 3 | 9
| 1003 | 12_5 | apr 2012 | 1 | 6
| 1003 | 12_11 | jan 2011 | 5 | 5
当我达到“Summed Total”(26) - 16 = 10时,我想停止查询。所以从10&gt;给我看一切 我只会在数据库中获取这些值。
| ID_prim | ID (FKey) | Date | Moved Items | Summed Total |
|:-----------|:------------|-------------:|:------------:|:------------:|
| 1003 | 12_4 | feb 2015 | 10 | 26
| 1003 | 12_3 | dec 2014 | 5 | 16
| 1003 | 12_3 | nov 2013 | 2 | 11
我所拥有的是以下
SELECT
T1.ID_prim, T1.ID as ID (FKey), T1.Moved_Items as Moved Items, t1.Date, SUM(T2.MOVEMENTQTY) AS Summed Total
FROM Table1 T1
INNER JOIN Table1 T2 ON T2.ID <= T1.ID
inner join table2 inout on T1.ID_prim = inout.ID_prim
AND T2.ID_prim = inout.ID_prim
AND T2.ID_prim = T1.ID_prim
where t1.ID_prim = 1003
and t2.ID_prim = 1003
and inout.ISSOTRX = 'N'
GROUP BY T1.ID_prim, T1.Moved Items, t1.Date
HAVING SUM(T2.Moved Items) <= 16
order by t1.UPDATED desc
但总和并没有真正起作用。 任何人都可以帮我制作将打印我的Desired表的Oracle DB的SQL语句吗?
答案 0 :(得分:4)
根据OP对该问题的评论进行澄清,可以使用 SUM()分析函数来获取运行总计,然后过滤它基于条件。
表格强>
SQL> SELECT * FROM t;
ID_PRIM ID DT MOVED
---------- ----- --------- ----------
1003 12_1 01-NOV-13 2
1003 12_2 01-OCT-13 3
1003 12_3 01-DEC-14 5
1003 12_4 01-FEB-15 10
1003 12_5 01-APR-12 1
1003 12_11 01-JAN-11 5
6 rows selected.
SQL>
累计
SQL> SELECT t.*, SUM(moved) OVER(ORDER BY dt) sm FROM t ORDER BY dt DESC;
ID_PRIM ID DT MOVED SM
---------- ----- --------- ---------- ----------
1003 12_4 01-FEB-15 10 26
1003 12_3 01-DEC-14 5 16
1003 12_1 01-NOV-13 2 11
1003 12_2 01-OCT-13 3 9
1003 12_5 01-APR-12 1 6
1003 12_11 01-JAN-11 5 5
6 rows selected.
SQL>
所需的输出
SQL> WITH DATA AS
2 ( SELECT t.*, SUM(moved) OVER(ORDER BY dt) sm FROM t ORDER BY dt DESC
3 )
4 SELECT * FROM data WHERE sm >= 16;
ID_PRIM ID DT MOVED SM
---------- ----- --------- ---------- ----------
1003 12_4 01-FEB-15 10 26
1003 12_3 01-DEC-14 5 16
SQL>
请注意,nov 2013
不是日期,而是字符串。由于您希望按日期排序,因此必须始终使用 TO_DATE 将其明确转换为日期。无论如何,我使用TO_DATE来创建样本数据。
更新 OP希望在运行时从总计值的 MAX 值中减去所需的值。
SQL> WITH DATA AS
2 ( SELECT t.*, SUM(moved) OVER(ORDER BY dt) sm FROM t ORDER BY dt DESC
3 )
4 SELECT * FROM DATA t WHERE sm >
5 (SELECT MAX(sm) FROM data
6 ) - 16 ;
ID_PRIM ID DT MOVED SM
---------- ----- --------- ---------- ----------
1003 12_4 01-FEB-15 10 26
1003 12_3 01-DEC-14 5 16
1003 12_1 01-NOV-13 2 11
SQL>
在更新的查询中, MAX(sm)返回26
,然后在条件WHERE sm > MAX(sm) -16
上过滤行,这意味着返回&#所在的所有行39; SM&#39;值大于26 -16
,即10
。您可以使用替换变量在运行时输入值16
。