Fredo

DerFredo aka Thomas holds a degree in Business Economics, but has been a data explorer and a developer at heart ever since the days of dBase and Turbo Pascal. He touched his first SQL Server at V6.5, used covering indexes before they became a feature and joined the PASS community in 2006.

Thomas has been developing in Navision/Dynamics/Business Central systems for quite some time (since 2001, one year before MS acquired Navision), got his hands on R in 2014 (the year before MS bought Revolution Analytics), on the Power Platform from 2020 and the Arduino world from 2024 on. He has worked for ISVs as well as end-user companies, as a developer, consultant, accidental data engineer and is an author for data-related articles as well as a speaker at data events across Europe.
  • Skills: SQL, R, BC, ERP, Arduino

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T-SQL Tuesday #202 SQL Server Outage You’ll Never Forget: A Roundup

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When I put together the invitation for T-SQL Tuesday #202, I wasn't sure what...

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Part 3 of 3: Tuning DiskANN — R, Alpha, L, Beam Width, Recall and Latency

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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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