Question

I want to consolidate values in my table using SELECT Query.
My table has 5 Columns: Name, Date [max three dates (consecutives buisness days)], and three values in each day.

I want an output like: strName, SUM(Value1 + Value2 – Value3) from Date0, SUM(Value1 + Value2 – Value3) from Date1, SUM(Value1 + Value2 – Value3) from Date2.

Input:

strName myDate  Value1  Value2  Value3
X4  2012-06-14  26300   0   0
X4  2012-06-15  0   4000    0
X4  2012-06-18  0   5600    0
X9  2012-06-14  764 0   0
A3  2012-06-14  7850    0   0
B   2012-06-14  5500    0   0
C3  2012-06-14  269100  0   0
D3  2012-06-14  395100  0   0
D3  2012-06-15  0   0   500

Ideal Output:

X4, 26300, 4000,5600
X9, 760, 0, 0
A3, 7850
...
D3, 395100, 0, -500

My table:

USE [MyTestBD]
GO
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
SET ANSI_PADDING ON
GO
CREATE TABLE [dbo].[tbX](
[strName] [varchar](max) NOT NULL,
[Value1] [float] NOT NULL,
[myDate] [date] NOT NULL,
[Value2] [float] NOT NULL,
[Value3] [float] NOT NULL
) ON [PRIMARY]
GO
SET ANSI_PADDING OFF
GO
INSERT [dbo].[tbX] ([strName], [Value1], [myDate], [Value2], [Value3]) VALUES (N'X4', 26300, CAST(0xCB350B00 AS Date), 0, 0)
INSERT [dbo].[tbX] ([strName], [Value1], [myDate], [Value2], [Value3]) VALUES (N'X4', 0, CAST(0xCC350B00 AS Date), 4000, 0)
INSERT [dbo].[tbX] ([strName], [Value1], [myDate], [Value2], [Value3]) VALUES (N'X4', 0, CAST(0xCF350B00 AS Date), 5600, 0)
INSERT [dbo].[tbX] ([strName], [Value1], [myDate], [Value2], [Value3]) VALUES (N'X9', 764, CAST(0xCB350B00 AS Date), 0, 0)
INSERT [dbo].[tbX] ([strName], [Value1], [myDate], [Value2], [Value3]) VALUES (N'A3', 7850, CAST(0xCB350B00 AS Date), 0, 0)
INSERT [dbo].[tbX] ([strName], [Value1], [myDate], [Value2], [Value3]) VALUES (N'B', 5500, CAST(0xCB350B00 AS Date), 0, 0)
INSERT [dbo].[tbX] ([strName], [Value1], [myDate], [Value2], [Value3]) VALUES (N'C3', 269100, CAST(0xCB350B00 AS Date), 0, 0)
INSERT [dbo].[tbX] ([strName], [Value1], [myDate], [Value2], [Value3]) VALUES (N'D3', 395100, CAST(0xCB350B00 AS Date), 0, 0)
INSERT [dbo].[tbX] ([strName], [Value1], [myDate], [Value2], [Value3]) VALUES (N'D3', 0, CAST(0xCC350B00 AS Date), 0, 500)
INSERT [dbo].[tbX] ([strName], [Value1], [myDate], [Value2], [Value3]) VALUES (N'D4', 400, CAST(0xCB350B00 AS Date), 0, 0)
INSERT [dbo].[tbX] ([strName], [Value1], [myDate], [Value2], [Value3]) VALUES (N'D4', 0, CAST(0xCC350B00 AS Date), 400, 6600)
INSERT [dbo].[tbX] ([strName], [Value1], [myDate], [Value2], [Value3]) VALUES (N'E3', 361349, CAST(0xCB350B00 AS Date), 0, 0)
INSERT [dbo].[tbX] ([strName], [Value1], [myDate], [Value2], [Value3]) VALUES (N'F6', 45500, CAST(0xCB350B00 AS Date), 0, 0)
INSERT [dbo].[tbX] ([strName], [Value1], [myDate], [Value2], [Value3]) VALUES (N'F6', 0, CAST(0xCC350B00 AS Date), 11600, 0)
INSERT [dbo].[tbX] ([strName], [Value1], [myDate], [Value2], [Value3]) VALUES (N'G4', 55979, CAST(0xCB350B00 AS Date), 0, 0)
INSERT [dbo].[tbX] ([strName], [Value1], [myDate], [Value2], [Value3]) VALUES (N'G4', 0, CAST(0xCC350B00 AS Date), 0, 19100)
INSERT [dbo].[tbX] ([strName], [Value1], [myDate], [Value2], [Value3]) VALUES (N'G4', 0, CAST(0xCF350B00 AS Date), 0, 38300)

PS: I didn’t found a nice Title for my question. Feel free to edit it.

Answer 1

Try this:

SELECT
    strName,
    SUM(CASE rn WHEN 1 THEN Value1 + Value2 - Value3 END),
    SUM(CASE rn WHEN 2 THEN Value1 + Value2 - Value3 END),
    SUM(CASE rn WHEN 3 THEN Value1 + Value2 - Value3 END)
FROM
(
    SELECT *, ROW_NUMBER() OVER (PARTITION BY strName ORDER BY mydate) AS rn
    FROM tbX
) AS T1

Results:

A3  7850        (null)  (null)
B   5500        (null)  (null)
C3  269100      (null)  (null)
D3  395100      -500    (null)
D4  400         -6200   (null)
E3  361349      (null)  (null)
F6  45500       11600   (null)
G4  55979       -19100  -38300
X4  26300       4000    5600
X9  764         (null)  (null)

sqlfiddle