Transaction Isolation Levels
An examination into how the various transaction isolation levels affect locking (and blocking)
What is Continuous Integration for Databases?
What is continuous integration for databases? Steve Jones gives a short explanation and information on why you might care about this.
Take our SQL Source Control survey and win an Amazon voucher
We’re changing how users get SQL Source Control updates, and we want to learn how users feel about the current update process. Take the survey for a chance to win one of five $25 Amazon vouchers.
The SQL Server Sqlio Utility
If, before deployment, you need to push the limits of your disk subsystem in order to determine whether the hardware’s I/O capacity meets the needs of a database application, if you need performance baselines, or if you want to identify any performance-related issues, then why not use the sqlio utility?
An Overview of SSIS Parameters - Level 15 of the Stairway to Integration Services
The next level in the Stairway to Integration Services looks at Parameters and how you can incorporate them into your packages.
How Often Do I Backup my Log?
Do you know how often to back up your SQL Server transaction log? Steve Jones has a few thoughts today and notes that you definitely need to know how to restore the log backups.
Natively Compiled Stored Procedures with SQL Server 2014
With the new SQL Server 2014 In-Memory OLTP tables, stored procedures can be natively compiled and can improve performance. Read on to learn more.
The Data Platform Vision
Microsoft published a vision for their data platform and SQL Server recently. Steve Jones has a few thoughts on what this means for you. Hint: it's cloudy.
Nesting Levels in SQL
The 'Structured' part of SQL denotes the fact that queries can be nested inside each other in such a way that, wherever you can use a table, you can use a table expression. Such derived tables can provide powerful magic, to which is added CTEs and Lateral Tables.
San Jose, CA - SQL in the City Seminar - Deployment Stairway
SQL Server MVP Steve Jones will be hosting a free seminar in San Jose on Friday March 7 2014. Join fellow database professionals to learn best practices and practical tips for SQL Server version control, continuous integration and deployment.
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