我有以下数据:
ID parentID Text Price
1 Root
2 1 Flowers
3 1 Electro
4 2 Rose 10
5 2 Violet 5
6 4 Red Rose 12
7 3 Television 100
8 3 Radio 70
9 8 Webradio 90
我正在尝试将此数据与Reporting Services 2008进行分组,并且每组1级(Flowers / Electro)和0级(Root)的价格总和。
我有一个在[ID]上分组的表,其递归父[parendID],我能够计算0级的总和(在组外的表中只有一行),但不知怎的,我不是能够为每个组创建总和,因为SRSS每个级别“创建”组。我想要的结果如下:
ID Text Price
1 Root
|2 Flowers
|-4 Rose 10
|-5 Violet 5
| |-6 Red Rose 12
| Group Sum-->27
|3 Electro
|-7 Television 100
|-8 Radio 70
|-9 Webradio 90
Group Sum-->260
----------------------
Total 287
(仅为级别说明添加了ID的缩进)
根据我目前的方法,我无法得到群组总和,所以我发现我需要以下数据结构:
ID parentID Text Price level0 level1 level2 level3
1 Root 1
2 1 Flowers 1 1
3 1 Electro 1 2
4 2 Rose 10 1 1 1
5 2 Violet 5 1 1 2
6 4 Red Rose 12 1 1 1 1
7 3 Television 100 1 2 1
8 3 Radio 70 1 2 2
9 8 Webradio 90 1 2 2 1
当具有上述结构时,我可以创建level0的外部分组,相应地将子分组level1,level2,level3。当现在在level1上有一个“组合总和”,并且在组外的总金额我完全是我想要的。
我的问题如下: 如何使用当前数据结构实现所需结果,或者如何将当前数据结构(左外连接?)临时转换为“新数据结构” - 这样我就可以从临时表中运行我的报告了?
感谢您抽出宝贵时间 丹尼斯
答案 0 :(得分:1)
WITH q AS
(
SELECT id, parentId, price
FROM mytable
UNION ALL
SELECT p.id, p.parentID, q.price
FROM q
JOIN mytable p
ON p.id = q.parentID
)
SELECT id, SUM(price)
FROM q
GROUP BY
id
<强>更新强>
要检查的测试脚本:
DECLARE @table TABLE (id INT NOT NULL PRIMARY KEY, parentID INT, txt VARCHAR(200) NOT NULL, price MONEY)
INSERT
INTO @table
SELECT 1, NULL, 'Root', NULL
UNION ALL
SELECT 2, 1, 'Flowers', NULL
UNION ALL
SELECT 3, 1, 'Electro', NULL
UNION ALL
SELECT 4, 2, 'Rose', 10
UNION ALL
SELECT 5, 2, 'Violet', 5
UNION ALL
SELECT 6, 4, 'Red Rose', 12
UNION ALL
SELECT 7, 3, 'Television', 100
UNION ALL
SELECT 8, 3, 'Radio', 70
UNION ALL
SELECT 9, 8, 'Webradio', 90;
WITH q AS
(
SELECT id, parentId, price
FROM @table
UNION ALL
SELECT p.id, p.parentID, q.price
FROM q
JOIN @table p
ON p.id = q.parentID
)
SELECT t.*, psum
FROM (
SELECT id, SUM(price) AS psum
FROM q
GROUP BY
id
) qo
JOIN @table t
ON t.id = qo.id
结果如下:
1 NULL Root NULL 287,00
2 1 Flowers NULL 27,00
3 1 Electro NULL 260,00
4 2 Rose 10,00 22,00
5 2 Violet 5,00 5,00
6 4 Red Rose 12,00 12,00
7 3 Television 100,00 100,00
8 3 Radio 70,00 160,00
9 8 Webradio 90,00 90,00
答案 1 :(得分:0)
我发现了一种非常丑陋的方式来做我想做的事 - 也许有更好的东西?
SELECT A.Text, A.Price,
CASE
WHEN D.Text IS NULL
THEN
CASE
WHEN C.Text IS NULL
THEN
CASE
WHEN B.Text IS NULL
THEN
A.ID
ELSE B.ID
END
ELSE C.ID
END
ELSE D.ID
END
AS LEV0,
CASE
WHEN D.Text IS NULL
THEN
CASE
WHEN C.Text IS NULL
THEN
CASE
WHEN B.Text IS NULL
THEN
NULL
ELSE A.ID
END
ELSE B.ID
END
ELSE C.ID
END
AS LEV1,
CASE
WHEN D.Text IS NULL
THEN
CASE
WHEN C.Text IS NULL
THEN
NULL
ELSE A.ID
END
ELSE B.ID
END
AS LEV2,
CASE
WHEN D.Text IS NULL
THEN NULL
ELSE A.ID
END
AS LEV3
FROM dbo.testOld AS A LEFT OUTER JOIN
dbo.testOld AS B ON A.parentID = B.ID LEFT OUTER JOIN
dbo.testOld AS C ON B.parentID = C.ID LEFT OUTER JOIN
dbo.testOld AS D ON C.parentID = D.ID
输出是:
Text Price LEV0 LEV1 LEV2 LEV3
---------- ----------- ----------- ----------- ----------- -----------
Root NULL 1 NULL NULL NULL
Flowers NULL 1 3 NULL NULL
Electro NULL 1 4 NULL NULL
Television 100 1 4 5 NULL
Radio 70 1 4 6 NULL
Rose 10 1 3 7 NULL
Violet 5 1 3 8 NULL
Webradio 90 1 4 5 14
Red Rose 12 1 3 7 15
通过这种结构,我可以继续在LEV0-3列上创建4个嵌套组,包括每组的小计(如上图所示)。