An Orders of Magnitude Problem (T-SQL Tuning)
When a query suddenly starts taking much longer, what do you do? This story from Jerry
2013-03-13
7,425 reads
Performance Tuning
SQLServerCentral Runs sp_Blitz - Performance Part 1
The third article that examines the output of the sp_Blitz script™ run against SQLServerCentral's database servers.
2013-01-22
9,612 reads
How Come the Hourglass? Why Database Applications Slow Down
It is frustrating when you hit 'submit' and you get the hourglass big-time. Is it the database to blame? It could be, but there are other suspects that should be considered. Feodor Georgiev describes where, in the long route, to and fro', that a data request makes before returning, that things can get snarled up.
2013-01-07
4,716 reads
Viewing VMware Counters in PerfMon for SQL Server
I want to ensure that my SQL Server on a VMware Guest OS is getting the resources it should. This would go a long way towards helping isolate the performance problems we're experiencing. However, our system administrators won't give us access to VirtualCenter or any of the tools they use. Is there anything I can do? Check out this tip to learn more.
2012-11-12
3,272 reads
Single User Performance of SQLite v. SQL Server
A look at the performance of SQL Server compared to SQLite for single user applications.
2012-07-19
7,224 reads
ETL Performance Auditing - Part 2: Auditing Data Staging Phase
Easy way to setup a comprehensive ETL Performance auditing Solution no matter how complicated your ETL setup.
2014-11-07 (first published: 2012-06-12)
10,210 reads
The Real World: Implementing AWE
Describes the gains experienced in my environment by implementing AWE.
2012-05-16
8,179 reads
Performance Test of New Date Manipulation Functions (SQL Spackle)
Performance test of new SQL 2012 functions DateTimeFromParts and Format
2012-05-10
6,226 reads
Get Top Queries Taxing SQL Server CPUs
Script which uses SQL Server DMOs to gather top CPU taxing queries which can benifit most from tuning.
2012-03-10
2,895 reads
Database Performance Transparency
Describes the benefits of publishing instance performance metrics including a script to generate HTML-based Performance Snapshot.
2012-02-08
6,985 reads
Blogs
Why sys.fn_dblog Is Undocumented And Why It's Still There
By SQLPals
Why sys.fn_dblog Is Undocumented And Why It's Still There Why sys.fn_dblog...
T-SQL Tuesday #202 SQL Server Outage You’ll Never Forget: A Roundup
When I put together the invitation for T-SQL Tuesday #202, I wasn't sure what...
A Last Minute Trip to the EU
By Steve Jones
My life has some crazy travel stretches for sure. Between speaking, office visits, customer...
Forums
Implementing Type 4 Slowly Changing Dimensions in SQL Server
Comments posted to this topic are about the item Implementing Type 4 Slowly Changing...
The Disabled Index
Comments posted to this topic are about the item The Disabled Index
Server-Level Table sizes
Comments posted to this topic are about the item Server-Level Table sizes
Question of the Day
The Disabled Index
I run this code on SQL Server 2022.
CREATE TABLE Drink
(
drinkid INT NOT NULL
CONSTRAINT DrinkPK PRIMARY KEY CLUSTERED,
drinkname VARCHAR(20),
rating NUMERIC(2, 1)
)
GO
INSERT INTO Drink
(
drinkid,
drinkname,
rating
)
VALUES
(1, 'Margarita', 4.5),
(2, 'Mojito', 4.3),
(3, 'Old Fashioned', 4.7),
(4, 'Martini', 4.4),
(5, 'Cosmopolitan', 4.2)
GO
ALTER INDEX drinkpk ON dbo.drink DISABLE
GO
SELECT * FROM dbo.Drink
GO
What is the result? See possible answers