Select result set into multiple rows dynamically in SQL Server - sql

Question

I am having SQL Server data which contains the available and allocated information, and i need to show the report like Available Data, Alloted Data and Balance Data for each resources.
Right now I am having all the information in single row and balance data needs to be calculated. How can I retreive the expected data?
Current Data and Output
SQL Fiddle
Available
+---+-------------+------------+---------------------+---------+------------+------------+
| Id| ResourceName| EmployeeId | iGPMResourceGroupId | GroupId | Capacity01 | Capacity02 |
+---+-------------+------------+---------------------+---------+------------+------------+
| 1 | Palanisamy | 24 | 1025135 | 15 | 0.70 | 0.70 |
| 2 | Anil | 20 | 1018707 | 15 | 1.00 | 1.00 |
| 3 | Ravi | 18 | 1025136 | 15 | 0.50 | 0.50 |
| 4 | Manikumar | 9 | 1025164 | 29 | 1.00 | 1.00 |
| 5 | Sakathi | 11 | 1020687 | 29 | 1.00 | 1.00 |
+---+-------------+------------+---------------------+---------+------------+------------+
Demand
+------------+-------------+---------------------+
| Number | ProjectName | iGPMResourceGroupId |
+------------+-------------+---------------------+
| BM-00000001| Project 1 | 1020687 |
| BM-00000002| Project 2 | 1020687 |
| BM-00000002| Project 2 | 1025136 |
| BM-00000003| Project 3 | 1025164 |
| BM-00000002| Project 2 | 1025135 |
| BM-00000003| Project 3 | 1025135 |
| BM-00000003| Project 3 | 1020687 |
| BM-00000002| Project 2 | 1025164 |
+------------+-------------+---------------------+
Allocated
+----+---------------------+----------------+------------+---------------------+------------+-----------+-----------+
| Id | AvailableResourceId | AssociateName | EmployeeId | iGPMResourceGroupId | ProjectId | Staffed01 | Staffed02 |
+----+---------------------+----------------+------------+---------------------+------------+-----------+-----------+
| 1 | 5 | Sakathi | 11 | 1020687 | BM-00000001| 0.30 | 0.30 |
| 2 | 5 | Sakathi | 11 | 1020687 | BM-00000003| 0.30 | 0.30 |
| 3 | 3 | Ravi | 18 | 1025136 | BM-00000002| 0.50 | 0.50 |
+----+---------------------+----------------+------------+---------------------+------------+-----------+-----------+
Query
SELECT ResourceName, iGPMResourceGroupId, ProjectName, StaffedId, Capacity01, Capacity02, Staffed01, Staffed02
FROM
(
SELECT Distinct A. ResourceName, A.EmployeeId, A.[iGPMResourceGroupId], D.[ProjectName], S.[Id] AS StaffedId, A.[Capacity01], A.[Capacity02], S.[Staffed01], S.[Staffed02]
FROM [AvailableR] A JOIN [DemandR] D ON A.[iGPMResourceGroupId] = D.[iGPMResourceGroupId]
LEFT JOIN [dbo].[AllocatedR] S ON A.Id = S.[AvailableResourceId] AND S.Number = D.Number AND S.[iGPMResourceGroupId] = D.[iGPMResourceGroupId]
)X
ORDER BY EmployeeId
Output
+--------------+---------------------+-------------+-----------+------------+------------+-----------+-----------+
| ResourceName | iGPMResourceGroupId | ProjectName | StaffedId | Capacity01 | Capacity02 | Staffed01 | Staffed02 |
+--------------+---------------------+-------------+-----------+------------+------------+-----------+-----------+
| Sakathi | 1020687 | Project 1 | 1 | 1 | 1 | 0 | 0 |
| Sakathi | 1020687 | Project 2 | (null) | 1 | 1 | (null) | (null) |
| Sakathi | 1020687 | Project 3 | 2 | 1 | 1 | 0 | 0 |
| Ravi | 1025136 | Project 2 | 3 | 0 | 0 | 1 | 1 |
| Palanisamy | 1025135 | Project 2 | (null) | 1 | 1 | (null) | (null) |
| Palanisamy | 1025135 | Project 3 | (null) | 1 | 1 | (null) | (null) |
| Manikumar | 1025164 | Project 2 | (null) | 1 | 1 | (null) | (null) |
| Manikumar | 1025164 | Project 3 | (null) | 1 | 1 | (null) | (null) |
+--------------+---------------------+-------------+-----------+------------+------------+-----------+-----------+
Expected Output:
Left = Available - Sum(Allotted)
+--------------+---------------------+-------------+-----------+------------+------+------+
| ResourceName | iGPMResourceGroupId | ProjectName | Status | StaffedId | 01 | 02 |
+--------------+---------------------+-------------+-----------+------------+------+------+
| Sakathi | | | Available | (null) | 1 | 1 |
| Sakathi | 1020687 | Project 1 | Alloted | 1 | 0.30 | 0.30 |
| Sakathi | 1020687 | Project 2 | Alloted | (null) |(null)|(null)|
| Sakathi | 1020687 | Project 3 | Alloted | 2 | 0.30 | 0.30 |
| Sakathi | | | Left | (null) | 0.40 | 0.40 |
| Ravi | | | Available | (null) | 0.50 | 0.50 |
| Ravi | 1025136 | Project 2 | Alloted | 3 | 0.50 | 0.50 |
| Ravi | | | Left | (null) | 0 | 0 |
| Palanisamy | | | Available | (null) | 1 | 1 |
| Palanisamy | 1025135 | Project 2 | Alloted | (null) |(null)|(null)|
| Palanisamy | 1025135 | Project 3 | Alloted | (null) |(null)|(null)|
| Palanisamy | | | Left | (null) | 1 | 1 |
| Manikumar | | | Available | (null) | 1 | 1 |
| Manikumar | 1025164 | Project 2 | Alloted | (null) |(null)|(null)|
| Manikumar | 1025164 | Project 3 | Alloted | (null) |(null)|(null)|
| Manikumar | | | Left | (null) | 1 | 1 |
+--------------+---------------------+-------------+-----------+------------+------+------+

Answer 1

So, if I got you right, you need an additional column "Left" with the calculated result and a new column which stored this value per resource? I guess you can achieve this by a redesign of your query and the use of two subqueries:
WITH cte AS(
SELECT Distinct A. ResourceName, A.EmployeeId, A.[iGPMResourceGroupId], NULL AS [ProjectName], N'Available' AS Status, NULL AS StaffedId, A.[Capacity01], A.[Capacity02], NULL AS [Staffed01], NULL AS [Staffed02]
FROM [AvailableR] A
JOIN [DemandR] D ON A.[iGPMResourceGroupId] = D.[iGPMResourceGroupId]
UNION ALL
SELECT Distinct A. ResourceName, A.EmployeeId, A.[iGPMResourceGroupId], D.[ProjectName], N'Alloted' AS Status, S.[Id] AS StaffedId, A.[Capacity01], A.[Capacity02], S.[Staffed01], S.[Staffed02]
FROM [AvailableR] A JOIN [DemandR] D ON A.[iGPMResourceGroupId] = D.[iGPMResourceGroupId]
LEFT JOIN [dbo].[AllocatedR] S ON A.Id = S.[AvailableResourceId] AND S.Number = D.Number AND S.[iGPMResourceGroupId] = D.[iGPMResourceGroupId]
),
cteLeft AS(
SELECT ResourceName, EmployeeID, iGPMResourceGroupId, SUM([Capacity01] + [Capacity02]) - SUM(Staffed01 + Staffed02) AS LeftTotal
FROM cte
WHERE Status = N'Alloted'
GROUP BY ResourceName, EmployeeID, iGPMResourceGroupId
)
SELECT *, NULL AS [Left]
FROM cte
UNION ALL
SELECT Distinct ResourceName, EmployeeId, [iGPMResourceGroupId], NULL AS [ProjectName], N'Left' AS Status, NULL AS StaffedId, NULL AS [Capacity01], NULL AS [Capacity02], NULL AS [Staffed01], NULL AS [Staffed02], [LeftTotal] AS [Left]
FROM cteLeft
ORDER BY 1
See fiddle for details: http://sqlfiddle.com/#!18/2a30d/16/0