Comments on: An Introduction to Clustered and Non-Clustered Index Data Structures

By: Hirushan

Hirushan — Sun, 15 Jul 2012 12:07:38 +0000

CREATE UNIQUE CLUSTERED INDEX DummyTable1_empindex
ON DummyTable1 (EmpIndex);
GO

By: Mark

Mark — Wed, 28 Mar 2012 16:13:14 +0000

Great article! I am wondering now what the result will be when adding two clustered indexes on a table for two different rows that you will often query a group of rows on. I’m not sure if I can have multiple clustered indexes on a single table. It seems I would have to have an additional copy of the data to have it physically arranged in two different orders if it’s possible taking up more space and making writes more expensive to the table.

By: Matt

Matt — Mon, 26 Mar 2012 11:01:16 +0000

Hi Kevin,

It is on page 5 of this article:

CREATE UNIQUE CLUSTERED INDEX DummyTable2_EmpIndex
ON DummyTable2 (EmpID)
GO

Regards, Matt

By: Kevin Schultz

Kevin Schultz — Thu, 07 Jul 2011 18:55:55 +0000

Where is the SQL code to add the unique clustered index?

RE: “Now, let’s add a unique clustered index on the empindex column and then view the differences in page 26410.”