2009-12-09
3,406 reads
Indexing
Introduction to Indexes: Part 3 – The nonclustered index
Part 3 of a great series on the basics of indexes. Learn the structure, definition, and how to examine the use of these indexes in your queries.
2012-07-23 (first published: 2009-11-18)
53,558 reads
Introduction to Indexes: Part 2 – The clustered index
In the second part of her series on indexing, MVP Gail Shaw examines clustered indexes. Learn what this index is, how it differs from a heap, and how it can help your queries.
2012-07-06 (first published: 2009-11-11)
63,561 reads
Introduction to Indexes
Indexes are critical to good performance. However many people don't understand how indexes well. MVP Gail Shaw provides us with an introductory article on the basics of indexing.
2012-06-29 (first published: 2009-10-26)
105,380 reads
Index Management
This article demonstrates an Index Management strategy to tackle day to day performance issues due to improper indexes.
2011-06-10 (first published: 2009-10-20)
25,486 reads
2013-03-08 (first published: 2009-10-02)
3,419 reads
2009-09-30
3,787 reads
Keep Your SQL Server Indexes Fragmentation Free
Routine maintenance can keep index fragmentation to a minimum—with some help from an index-defragmenting script.
2009-09-22
5,457 reads
Understanding Scans And Seeks
Whether a query uses Scan or Seek can have a big impact on the cost of excuting that query. This article examines when each is used and which is optimal.
2009-09-10
6,054 reads
Back to basics: Optimizing SQL Server indexes
When created and maintained correctly, indexes help SQL Server retrieve data quickly. See how to ensure your SQL Server environment is running up to speed.
2009-08-21
6,622 reads
Blogs
T-SQL Tuesday #203: Risk and Reward
By Steve Jones
This is timely, as I’m currently on a boat in the Adriatic taking a...
dataMinds Connect 2026 – Slides & Scripts
You can find the slides and SQL scripts for my session “Spice up your...
How to Clear the SSMS Cache (SSMS 21 and Later)
By SQLPals
How to Clear the SSMS Cache (SSMS 21 and Later) Updated...
Forums
Using CHOOSE()
Comments posted to this topic are about the item Using CHOOSE()
Re-Seeding a Broken Log Shipping Secondary (Without Touching the Primary)
Comments posted to this topic are about the item Re-Seeding a Broken Log Shipping...
The DBA is Dead! Long Live the !
Comments posted to this topic are about the item The DBA is Dead! Long...
Question of the Day
Using CHOOSE()
We have this code that sets some status values and then queries them using the CHOOSE() function in SQL Server 2025.
CREATE TABLE Status
(
StatusID INT,
StatusDescription VARCHAR(20)
);
GO
INSERT dbo.Status
(
StatusID,
StatusDescription
)
VALUES
(0, 'Uncategorized'),
(1, 'Active'),
(2, 'Inactive'),
(3, 'Temp');
GO
SELECT CHOOSE(StatusID, 'Unknown', 'Active', 'Inactive', 'Temporary')
FROM Status;
When the SELECT runs, what is returned? See possible answers