Does it make sense to create index on field with less changeability ?

Posted by Maciej on Stack Overflow See other posts from Stack Overflow or by Maciej
Published on 2010-04-27T10:56:24Z Indexed on 2010/04/27 11:03 UTC
Read the original article Hit count: 303

Filed under:

tsql

|

sql-server-2005

|

indexing

|

performance-tuning

I heard opinion that it make no sense to create indexes when field has less changeability.
Eg if it stores only A,B,C,D values then there wouldn't be benefit of having such index, and further more SQL server will not use it at all when executing query.

I wonder your opinion on that matter?

© Stack Overflow or respective owner

Related posts about tsql

TSQL Challenge 30 - A Matrix Transposition challenge in TSQL

as seen on SQL Server Central - Search for 'SQL Server Central'
This is a matrix transposition challenge. Your job is to change the position of the numbres in a 5x5 matrix. SQL Server monitoring made easy "Keeping an eye on our many SQL Server instances is much easier with SQL Response." Mike Lile.Download a free trial of SQL Response… >>> More
Will TSQL become useless because of new ORMs? [closed]

as seen on Programmers - Search for 'Programmers'
By introducing LINQ to SQL, I found myself and my .NET developer colleagues gradually moving from TSQL to C# to create queries on the database. Entity Framework made that shift almost permanent. Now it's nearly 2 years that I use LINQ to SQL and LINQ to Entities and haven't used TSQL that much. Yesterday… >>> More
Issue Creating SQL Login for AppPoolIdentity on Windows Server 2008

as seen on Johnny Coder - Search for 'Johnny Coder'
IIS7 introduced the option to run your application pool as AppPoolIdentity. With the release of IIS7.5, AppPoolIdentity was promoted to the default option. You see this change if you’re running Windows 7 or Windows Server 2008 R2. On my Windows 7 machine, I’m able to define my Application… >>> More
The best, in the West

as seen on Simple Talk - Search for 'Simple Talk'
As many of you know, I run the SQL South West user group and we are currently in full flow preparing to stage the UK’s second SQL Saturday. The SQL Saturday spotlight is going to fall on Exeter in March 2013. We have full-day session on Friday 8th with some truly amazing speakers giving their… >>> More
Something for the weekend - Whats the most complex query?

as seen on SQL Blogcasts - Search for 'SQL Blogcasts'
Whenever I teach about SQL Server performance tuning I try can get across the message that there is no such thing as a table. Does that sound odd, well it isn't, trust me. Rather than tables you need to consider structures. You have 1. Heaps 2. Indexes (b-trees) Some people split indexes… >>> More

Related posts about sql-server-2005

[MAJ] SQL Server 2005 Express Edition - La version gratuite de SQL Server 2005

as seen on ASP-PHP.net - Search for 'ASP-PHP.net'
Modification technique pour le site de l'article. >>> More
SQLAuthority News – Feature Pack for Microsoft SQL Server 2005 SP4

as seen on SQL Authority - Search for 'SQL Authority'
If you are still using SQL Server 2005 – I suggest that you consider migrating to later version of the SQL Server 2008/2008 R2. Due to any reason, you wanted to continue using SQL Server 2005, I suggest that you take a look at the Feature Pack for Microsoft SQL Server 2005 SP4. There are many… >>> More
SQL Server 2005 - Syncing development/production databases

as seen on Stack Overflow - Search for 'Stack Overflow'
I've got a rather large SQL Server 2005 database that is under constant development. Every so often, I either get a new developer or need to deploy wide-scale schema changes to the production server. My main concern is deploying schema + data updates to developer machines from the "master" development… >>> More
Displaying the Row Number in a SELECT Query with SQL Server 2005

as seen on Internet.com - Search for 'Internet.com'
SQL Server 2005 introduced a function that is very handy when you want the result set to have row numbers assigned to each returned row. >>> More
Displaying the Row Number in a SELECT Query with SQL Server 2005

as seen on Internet.com - Search for 'Internet.com'
SQL Server 2005 introduced a function that is very handy when you want the result set to have row numbers assigned to each returned row. >>> More