Converting rows to Columns in SQL

Posted by Ram on Stack Overflow See other posts from Stack Overflow or by Ram
Published on 2010-05-13T20:38:22Z Indexed on 2010/05/13 20:54 UTC
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I have a table (actually a view, but simplified my example to a table) which gives me some data like this

id  CompanyName website
1   Google          google.com
2   Google          google.net
3   Google          google.org
4   Google          google.in
5   Google          google.de
6   Microsoft       Microsoft.com
7   Microsoft       live.com
8   Microsoft       bing.com
9   Microsoft       hotmail.com

I am looking to convert it to get a result like this

CompanyName website1      website2   website3   website 4   website5  website6 
----------- ------------- ---------- ---------- ----------- --------- --------
Google      google.com    google.net google.org google.in   google.de NULL
Microsoft   Microsoft.com live.com   bing.com   hotmail.com NULL      NULL

I have looked into pivot but looks like the record(row values) cannot be dynamic (i.e can only be certain predefined values).

Also, if there are more than 6 websites, I want to limit it to the first 6

Dynamic pivot makes sense, but I would have to incorporate it into my view ?? Is there a simpler solution for this ?

Here are the SQL scripts

CREATE TABLE [dbo].[Company](
    [id] [int] NULL,
    [CompanyName] [varchar](50) NULL,
    [website] [varchar](50) NULL
) ON [PRIMARY]
GO

insert into company values (1,'Google','google.com')
insert into company values (2,'Google','google.net')
insert into company values (3,'Google','google.org')
insert into company values (4,'Google','google.in')
insert into company values (5,'Google','google.de')
insert into company values (6,'Microsoft','Microsoft.com')
insert into company values (7,'Microsoft','live.com')
insert into company values (8,'Microsoft','bing.com')
insert into company values (9,'Microsoft','hotmail.com')

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