John Sansom

John Sansom (Blog | Twitter) is a Microsoft Certified Master (MCM) of SQL Server and publisher of the free SQL community ebook DBA JumpStart, an inspiring collection of advice for Data Professionals, written by 20 SQL Server experts. Awarded the Microsoft Community Contributor(MCC) award, John is a prolific blogger and can be found regularly writing about SQL Server and Professional Development over at www.johnsansom.com.

Blogs

Running a Local LLM On Your Laptop Resources

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Thanks to everyone that attended my sessions at VS Live San Diego yesterday. It...

Differences Between xp_readerrolog and sp_readerrorlog: #SQLNewBlogger

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I was creating a question on sp_readerrorlog and realized that this procedure is different...

Why sys.fn_dblog Is Undocumented And Why It's Still There

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Why sys.fn_dblog Is Undocumented And Why It's Still There Why sys.fn_dblog...

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Forums

Implementing Type 4 Slowly Changing Dimensions in SQL Server

By Dinesh Asanka

Comments posted to this topic are about the item Implementing Type 4 Slowly Changing...

The Disabled Index

By Steve Jones - SSC Editor

Comments posted to this topic are about the item The Disabled Index

Server-Level Table sizes

By Artur Sanin

Comments posted to this topic are about the item Server-Level Table sizes

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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?

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