SQL Server: Generate Report using PIVOT

In this blog I am going to show how we can generate a report using Pivot in SQL Server:

I want to dedicate this post to two of my friends cum brother Abhishek Nigam & Yogesh Gupta.

Abhishek Nigam & Yogesh Gupta If you see this post then I want to remember that beautiful day with both of you.

I got a business requirement to generate a report of Customer and their order detail by Month. Mean I have below 2 tables.

Customer:

CREATE TABLE [dbo].[Customer](
[Customer_ID] [int] IDENTITY(1,1) NOT NULL,
[Customer_Name] [varchar](50) NULL,
CONSTRAINT [PK_Customer] PRIMARY KEY CLUSTERED
(
[Customer_ID] ASC
)WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY]
) ON [PRIMARY]
GO
SET ANSI_PADDING OFF
GO

CREATE TABLE [dbo].[OrderDetails](
[Order_ID] [int] IDENTITY(1,1) NOT NULL,
[Customer_Name] [varchar](50) NULL,
[Unit] [int] NULL,
[Month] [varchar](50) NULL,
CONSTRAINT [PK_OrderDetails] PRIMARY KEY CLUSTERED
(
[Order_ID] ASC
)WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY]
) ON [PRIMARY]
GO
SET ANSI_PADDING OFF
GO

Select Records From both Tables:

Now I want to see records by Month mean in which month which customer order how many unit.

To get this write below query using PIVOT syntax in SQL Server:

SELECT * FROM (
SELECT c.Customer_Name, d.[Month],
ISNULL(d.Unit,0) AS Unit
FROm OrderDetails d RIGHT JOIN Customer c on d.Customer_Name=c.Customer_Name
) as s
PIVOT
(
SUM(Unit)
FOR [Month] in (January, February, March, April, May, June, July, August, September, October, November, December)
) As Pivot1