Question

I have the below table,

Company_ID             part_id     Serial NO
------------------    ----------- --------------
1                     BAU          BAU2512  
1                     BAU          BAU3512
1                     BAU          BAU4512
2                     BAU          BAU5512
2                     BAU          BAU6512
2                     BAU          BAU7512

And I want a query to return this

Company_id             Item#1       Item#2         Item#3   
------------------    ---------     -------------  ----------- 
1                     BAU2512       BAU3512        BAU4512
2                     BAU5512       BAU6512        BAU7512

any help with the query appreciated, using SQL Server 2008

To create the sample table.

-- Suppress data loading messages
SET NOCOUNT ON

-- Create Sample Data using a Table Varable
DECLARE @Company TABLE
(Company_ID int,
 part_ID varchar(30),
 SerialNO varchar(30))

-- Load Sample Data
INSERT INTO @Company VALUES (1, 'BAU', 'BAU2512')
INSERT INTO @Company VALUES (1, 'BAU', 'BAU3512')
INSERT INTO @Company VALUES (1, 'BAU', 'BAU4512')
INSERT INTO @Company VALUES (2, 'BAU', 'BAU5512')
INSERT INTO @Company VALUES (2, 'BAU', 'BAU6512')
INSERT INTO @Company VALUES (2, 'BAU', 'BAU7512')

Answer 1

Aha I think there is no way than to use dynamic sql for this. based on the answer here PIVOT in sql 2005

below is the solution for works for me.

Create tables(s) etc

-- Create Sample Data using a Table Varable
create table dbo.Company
(Company_ID int,
 part_ID varchar(30),
 SerialNO varchar(30))

-- Load Sample Data
INSERT INTO Company VALUES (1, 'BAU', 'BAU2512')
INSERT INTO Company VALUES (1, 'BAU', 'BAU3512')
INSERT INTO Company VALUES (1, 'BAU', 'BAU4512')
INSERT INTO Company VALUES (2, 'BAU', 'BAU5512')
INSERT INTO Company VALUES (2, 'BAU', 'BAU6512')
INSERT INTO Company VALUES (2, 'BAU', 'BAU7512')

The query

DECLARE @sql AS varchar(max)
DECLARE @pivot_list AS varchar(max) -- Leave NULL for COALESCE technique
DECLARE @select_list AS varchar(max) -- Leave NULL for COALESCE technique

SELECT @pivot_list = COALESCE(@pivot_list + ', ', '') + '[' + CONVERT(varchar, PIVOT_CODE) + ']'
        ,@select_list = COALESCE(@select_list + ', ', '') + '[' + CONVERT(varchar, PIVOT_CODE) + '] AS [col_' + CONVERT(varchar, PIVOT_CODE) + ']'
FROM (
    SELECT DISTINCT PIVOT_CODE
    FROM (
        SELECT Company_ID, SerialNO, ROW_NUMBER() OVER (PARTITION BY Company_ID ORDER BY SerialNO) AS PIVOT_CODE
        FROM Company
    ) AS rows
) AS PIVOT_CODES

SET @sql = '
;WITH p AS (
    SELECT Company_ID, SerialNO, ROW_NUMBER() OVER (PARTITION BY Company_ID ORDER BY SerialNO) AS PIVOT_CODE
    FROM Company
)
SELECT Company_ID, ' + @select_list + '
FROM p
PIVOT (
    MIN(SerialNO)
    FOR PIVOT_CODE IN (
        ' + @pivot_list + '
    )
) AS pvt
'

PRINT @sql

EXEC (@sql)

Answer here:

http://sqlfiddle.com/#!3/7fd86/1